I thought of uploading posts related to Linux since many days, all these days I have posted things related to Solaris itself, so I wanted to start Linux... So the basic thing in the Linux OS is the LVM.
ubu@ubuntu:~$ su -
Password:
root@ubuntu:~#
root@ubuntu:~#
root@ubuntu:~# df -kh
Filesystem Size Used Avail Use% Mounted on
udev 982M 0 982M 0% /dev
tmpfs 201M 3.3M 197M 2% /run
/dev/mapper/ubuntu--vg-root 5.4G 1.3G 3.8G 26% /
tmpfs 1001M 0 1001M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 1001M 0 1001M 0% /sys/fs/cgroup
/dev/sda1 472M 55M 393M 13% /boot
tmpfs 100K 0 100K 0% /run/lxcfs/controllers
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 201M 0 201M 0% /run/user/1000
root@ubuntu:~#
For Linux machines meta devices like in Solaris we have Physical Volumes (PVs). Below is the command and output to display PV.
root@ubuntu:~# pvdisplay
--- Physical volume ---
PV Name /dev/sda5
VG Name ubuntu-vg
PV Size 7.52 GiB / not usable 2.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1925
Free PE 0
Allocated PE 1925
PV UUID KBhVnP-30fy-u8QV-IXHK-1zLE-98kR-1Ducfa
root@ubuntu:~#
As you see I already have a PV under which a VG (Volume Group) created, this is because my root disk is under LVM. So upon a PV we will create VG...
root@ubuntu:~# vgdisplay
--- Volume group ---
VG Name ubuntu-vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 7.52 GiB
PE Size 4.00 MiB
Total PE 1925
Alloc PE / Size 1925 / 7.52 GiB
Free PE / Size 0 / 0
VG UUID 9ZjLhk-IoTQ-Qfli-j9XS-PjgW-7FDv-3SaqTa
root@ubuntu:~#
Above "ubuntu-vg" is VG for my root and swap. Now LVs (Logical Volumes) comes to the scene. So you can see my lvs for root and swap below.
root@ubuntu:~# lvdisplay
--- Logical volume ---
LV Path /dev/ubuntu-vg/root
LV Name root
VG Name ubuntu-vg
LV UUID stDQ9W-X34I-4eFk-7rDq-SLRL-0kpv-hLki1z
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 1
LV Size 5.52 GiB
Current LE 1413
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0
--- Logical volume ---
LV Path /dev/ubuntu-vg/swap_1
LV Name swap_1
VG Name ubuntu-vg
LV UUID 3K30n5-M7ew-Znww-km5q-IRQr-dqfz-E9Dtzr
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 2
LV Size 2.00 GiB
Current LE 512
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1
root@ubuntu:~#
Like "format" command in Solaris, we have command "fdisk -l" to display the disks... I compare all the time because it is easy to understand somethings when we already know few similar things...
root@ubuntu:~# fdisk -l | more
Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram1: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram2: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram3: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram4: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram5: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram6: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram7: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram8: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram9: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram10: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram11: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram12: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram13: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram14: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram15: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sda: 8 GiB, 8589934592 bytes, 16777216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xa51c9f65
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 999423 997376 487M 83 Linux
/dev/sda2 1001470 16775167 15773698 7.5G 5 Extended
/dev/sda5 1001472 16775167 15773696 7.5G 8e Linux LVM
Disk /dev/mapper/ubuntu--vg-root: 5.5 GiB, 5926551552 bytes, 11575296 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/ubuntu--vg-swap_1: 2 GiB, 2147483648 bytes, 4194304 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
root@ubuntu:~#
Now I will add few disks for our learning purpose...(It is so easy in Oracle Virtual box or VMware Workstation).
Again logging in,
ubu@ubuntu:~$
ubu@ubuntu:~$ su -
Password:
root@ubuntu:~#
root@ubuntu:~#
root@ubuntu:~# df -kh
Filesystem Size Used Avail Use% Mounted on
udev 982M 0 982M 0% /dev
tmpfs 201M 3.3M 197M 2% /run
/dev/mapper/ubuntu--vg-root 5.4G 1.3G 3.8G 26% /
tmpfs 1001M 0 1001M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 1001M 0 1001M 0% /sys/fs/cgroup
/dev/sda1 472M 55M 393M 13% /boot
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 100K 0 100K 0% /run/lxcfs/controllers
tmpfs 201M 0 201M 0% /run/user/1000
root@ubuntu:~#
This time let us see output which we require,
root@ubuntu:~# fdisk -l | grep /dev/sd
Disk /dev/sda: 8 GiB, 8589934592 bytes, 16777216 sectors
/dev/sda1 * 2048 999423 997376 487M 83 Linux
/dev/sda2 1001470 16775167 15773698 7.5G 5 Extended
/dev/sda5 1001472 16775167 15773696 7.5G 8e Linux LVM
Disk /dev/sdb: 100 MiB, 104857600 bytes, 204800 sectors
Disk /dev/sdc: 100 MiB, 104857600 bytes, 204800 sectors
Disk /dev/sdd: 100 MiB, 104857600 bytes, 204800 sectors
root@ubuntu:~#
root@ubuntu:~# pvdisplay
--- Physical volume ---
PV Name /dev/sda5
VG Name ubuntu-vg
PV Size 7.52 GiB / not usable 2.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1925
Free PE 0
Allocated PE 1925
PV UUID KBhVnP-30fy-u8QV-IXHK-1zLE-98kR-1Ducfa
root@ubuntu:~#
Let us create PVs from disks we added,
root@ubuntu:~# pvcreate /dev/sdb /dev/sdc /dev/sdd
Physical volume "/dev/sdb" successfully created
Physical volume "/dev/sdc" successfully created
Physical volume "/dev/sdd" successfully created
root@ubuntu:~#
root@ubuntu:~# pvdisplay /dev/sdb /dev/sdc /dev/sdd
"/dev/sdd" is a new physical volume of "100.00 MiB"
--- NEW Physical volume ---
PV Name /dev/sdd
VG Name
PV Size 100.00 MiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID TFtlnW-ZiPx-GrQc-ws9d-md37-i8ij-QeB9gG
"/dev/sdb" is a new physical volume of "100.00 MiB"
--- NEW Physical volume ---
PV Name /dev/sdb
VG Name
PV Size 100.00 MiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID j7O15i-NSPS-ppJO-0263-x1hP-P222-veof5g
"/dev/sdc" is a new physical volume of "100.00 MiB"
--- NEW Physical volume ---
PV Name /dev/sdc
VG Name
PV Size 100.00 MiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID tNCHDy-8bdJ-JFS6-Zfhe-TFLK-YQgz-iDL9Lt
root@ubuntu:~#
Its time to create VG on our PV...
root@ubuntu:~# vgdisplay
--- Volume group ---
VG Name ubuntu-vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 7.52 GiB
PE Size 4.00 MiB
Total PE 1925
Alloc PE / Size 1925 / 7.52 GiB
Free PE / Size 0 / 0
VG UUID 9ZjLhk-IoTQ-Qfli-j9XS-PjgW-7FDv-3SaqTa
root@ubuntu:~#
root@ubuntu:~# vgcreate vol1 /dev/sdb /dev/sdc /dev/sdd
Volume group "vol1" successfully created
root@ubuntu:~#
root@ubuntu:~# vgdisplay
--- Volume group ---
VG Name ubuntu-vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 7.52 GiB
PE Size 4.00 MiB
Total PE 1925
Alloc PE / Size 1925 / 7.52 GiB
Free PE / Size 0 / 0
VG UUID 9ZjLhk-IoTQ-Qfli-j9XS-PjgW-7FDv-3SaqTa
--- Volume group ---
VG Name vol1
System ID
Format lvm2
Metadata Areas 3
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 3
Act PV 3
VG Size 288.00 MiB
PE Size 4.00 MiB
Total PE 72
Alloc PE / Size 0 / 0
Free PE / Size 72 / 288.00 MiB
VG UUID Kpd01H-UQqs-n1f9-VVA3-6buC-f1EO-pTK7v1
root@ubuntu:~#
Then its time for LV....
root@ubuntu:~# lvdisplay
--- Logical volume ---
LV Path /dev/ubuntu-vg/root
LV Name root
VG Name ubuntu-vg
LV UUID stDQ9W-X34I-4eFk-7rDq-SLRL-0kpv-hLki1z
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 1
LV Size 5.52 GiB
Current LE 1413
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0
--- Logical volume ---
LV Path /dev/ubuntu-vg/swap_1
LV Name swap_1
VG Name ubuntu-vg
LV UUID 3K30n5-M7ew-Znww-km5q-IRQr-dqfz-E9Dtzr
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 2
LV Size 2.00 GiB
Current LE 512
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1
root@ubuntu:~#
Mine is latest ubuntu server, so the default Filesystem will be ext4...
root@ubuntu:~# lvcreate -L 50M vol1 -n mydata1
Rounding up size to full physical extent 52.00 MiB
WARNING: ext4 signature detected on /dev/vol1/mydata1 at offset 1080. Wipe it? [y/n]: y
Wiping ext4 signature on /dev/vol1/mydata1.
Logical volume "mydata1" created.
root@ubuntu:~#
root@ubuntu:~# lvdisplay
--- Logical volume ---
LV Path /dev/ubuntu-vg/root
LV Name root
VG Name ubuntu-vg
LV UUID stDQ9W-X34I-4eFk-7rDq-SLRL-0kpv-hLki1z
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 1
LV Size 5.52 GiB
Current LE 1413
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0
--- Logical volume ---
LV Path /dev/ubuntu-vg/swap_1
LV Name swap_1
VG Name ubuntu-vg
LV UUID 3K30n5-M7ew-Znww-km5q-IRQr-dqfz-E9Dtzr
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 2
LV Size 2.00 GiB
Current LE 512
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1
--- Logical volume ---
LV Path /dev/vol1/mydata1
LV Name mydata1
VG Name vol1
LV UUID rggxbf-Tenn-kEZA-FdkQ-aRUb-umHP-o0wLoL
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-06 18:13:53 -0400
LV Status available
# open 0
LV Size 52.00 MiB
Current LE 13
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:2
root@ubuntu:~#
One more volume,
root@ubuntu:~# lvcreate -L 150M vol1 -n mydata2
Rounding up size to full physical extent 152.00 MiB
WARNING: ext4 signature detected on /dev/vol1/mydata2 at offset 1080. Wipe it? [y/n]: y
Wiping ext4 signature on /dev/vol1/mydata2.
Logical volume "mydata2" created.
root@ubuntu:~#
root@ubuntu:~# lvdisplay
--- Logical volume ---
LV Path /dev/ubuntu-vg/root
LV Name root
VG Name ubuntu-vg
LV UUID stDQ9W-X34I-4eFk-7rDq-SLRL-0kpv-hLki1z
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 1
LV Size 5.52 GiB
Current LE 1413
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0
--- Logical volume ---
LV Path /dev/ubuntu-vg/swap_1
LV Name swap_1
VG Name ubuntu-vg
LV UUID 3K30n5-M7ew-Znww-km5q-IRQr-dqfz-E9Dtzr
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 2
LV Size 2.00 GiB
Current LE 512
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1
--- Logical volume ---
LV Path /dev/vol1/mydata1
LV Name mydata1
VG Name vol1
LV UUID rggxbf-Tenn-kEZA-FdkQ-aRUb-umHP-o0wLoL
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-06 18:13:53 -0400
LV Status available
# open 0
LV Size 52.00 MiB
Current LE 13
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:2
--- Logical volume ---
LV Path /dev/vol1/mydata2
LV Name mydata2
VG Name vol1
LV UUID jjFSn5-TE2X-13fq-j9we-QCwf-7ZJk-9H6FOl
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-06 18:14:10 -0400
LV Status available
# open 0
LV Size 152.00 MiB
Current LE 38
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:3
root@ubuntu:~#
Once done with the LV creation we should make FS on our volume...
root@ubuntu:~# mkfs.ext4 /dev/vol1/mydata1
mke2fs 1.42.13 (17-May-2015)
Creating filesystem with 53248 1k blocks and 13328 inodes
Filesystem UUID: e49e7c09-88fa-44c1-b988-2cef549dd049
Superblock backups stored on blocks:
8193, 24577, 40961
Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
root@ubuntu:~#
FS creation for our second volume...
root@ubuntu:~# mkfs.ext4 /dev/vol1/mydata2
mke2fs 1.42.13 (17-May-2015)
Creating filesystem with 155648 1k blocks and 38912 inodes
Filesystem UUID: c5bdb3ce-eb8a-4e31-89df-33dc802548d6
Superblock backups stored on blocks:
8193, 24577, 40961, 57345, 73729
Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
root@ubuntu:~#
root@ubuntu:~# mkdir -p /data1
root@ubuntu:~#
root@ubuntu:~# mkdir -p /data2
root@ubuntu:~#
Now I will mount the FS...
root@ubuntu:~# mount /dev/vol1/mydata1 /data1
root@ubuntu:~#
root@ubuntu:~# mount /dev/vol1/mydata2 /data2
root@ubuntu:~#
root@ubuntu:~# df -kh
Filesystem Size Used Avail Use% Mounted on
udev 982M 0 982M 0% /dev
tmpfs 201M 3.3M 197M 2% /run
/dev/mapper/ubuntu--vg-root 5.4G 1.3G 3.8G 26% /
tmpfs 1001M 0 1001M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 1001M 0 1001M 0% /sys/fs/cgroup
/dev/sda1 472M 55M 393M 13% /boot
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 100K 0 100K 0% /run/lxcfs/controllers
tmpfs 201M 0 201M 0% /run/user/1000
/dev/mapper/vol1-mydata1 47M 842K 42M 2% /data1
/dev/mapper/vol1-mydata2 144M 1.6M 132M 2% /data2
root@ubuntu:~#
To make it permanent mount, to mount at boot time just add the entries in the /etc/fstab file...
root@ubuntu:~# cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
/dev/mapper/ubuntu--vg-root / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=8d74a25e-fef8-45d4-ab90-1cb14910d7f0 /boot ext2 defaults 0 2
/dev/mapper/ubuntu--vg-swap_1 none swap sw 0 0
root@ubuntu:~#
root@ubuntu:~# vi /etc/fstab
root@ubuntu:~#
root@ubuntu:~# cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
/dev/mapper/ubuntu--vg-root / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=8d74a25e-fef8-45d4-ab90-1cb14910d7f0 /boot ext2 defaults 0 2
/dev/mapper/ubuntu--vg-swap_1 none swap sw 0 0
/dev/vol1/mydata1 /data1 ext4 rw 0 1
/dev/vol1/mydata2 /data2 ext4 rw 0 1
root@ubuntu:~#
After rebooting...
login as: ubu@10.0.0.143's password:
Welcome to Ubuntu 16.04.1 LTS (GNU/Linux 4.4.0-31-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
79 packages can be updated.
41 updates are security updates.
Last login: Thu Oct 6 18:44:28 2016
ubu@ubuntu:~$
ubu@ubuntu:~$ df -kh
Filesystem Size Used Avail Use% Mounted on
udev 982M 0 982M 0% /dev
tmpfs 201M 3.4M 197M 2% /run
/dev/mapper/ubuntu--vg-root 5.4G 1.3G 3.8G 26% /
tmpfs 1001M 0 1001M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 1001M 0 1001M 0% /sys/fs/cgroup
/dev/sda1 472M 55M 393M 13% /boot
/dev/mapper/vol1-mydata2 144M 1.6M 132M 2% /data2
/dev/mapper/vol1-mydata1 47M 842K 42M 2% /data1
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 201M 0 201M 0% /run/user/0
tmpfs 201M 0 201M 0% /run/user/1000
ubu@ubuntu:~$
That's it for the volume and filesystem creation under LVM...
####################################################################################
ubu@ubuntu:~$ su -
Password:
root@ubuntu:~#
root@ubuntu:~#
root@ubuntu:~# df -kh
Filesystem Size Used Avail Use% Mounted on
udev 982M 0 982M 0% /dev
tmpfs 201M 3.3M 197M 2% /run
/dev/mapper/ubuntu--vg-root 5.4G 1.3G 3.8G 26% /
tmpfs 1001M 0 1001M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 1001M 0 1001M 0% /sys/fs/cgroup
/dev/sda1 472M 55M 393M 13% /boot
tmpfs 100K 0 100K 0% /run/lxcfs/controllers
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 201M 0 201M 0% /run/user/1000
root@ubuntu:~#
For Linux machines meta devices like in Solaris we have Physical Volumes (PVs). Below is the command and output to display PV.
root@ubuntu:~# pvdisplay
--- Physical volume ---
PV Name /dev/sda5
VG Name ubuntu-vg
PV Size 7.52 GiB / not usable 2.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1925
Free PE 0
Allocated PE 1925
PV UUID KBhVnP-30fy-u8QV-IXHK-1zLE-98kR-1Ducfa
root@ubuntu:~#
As you see I already have a PV under which a VG (Volume Group) created, this is because my root disk is under LVM. So upon a PV we will create VG...
root@ubuntu:~# vgdisplay
--- Volume group ---
VG Name ubuntu-vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 7.52 GiB
PE Size 4.00 MiB
Total PE 1925
Alloc PE / Size 1925 / 7.52 GiB
Free PE / Size 0 / 0
VG UUID 9ZjLhk-IoTQ-Qfli-j9XS-PjgW-7FDv-3SaqTa
root@ubuntu:~#
Above "ubuntu-vg" is VG for my root and swap. Now LVs (Logical Volumes) comes to the scene. So you can see my lvs for root and swap below.
root@ubuntu:~# lvdisplay
--- Logical volume ---
LV Path /dev/ubuntu-vg/root
LV Name root
VG Name ubuntu-vg
LV UUID stDQ9W-X34I-4eFk-7rDq-SLRL-0kpv-hLki1z
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 1
LV Size 5.52 GiB
Current LE 1413
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0
--- Logical volume ---
LV Path /dev/ubuntu-vg/swap_1
LV Name swap_1
VG Name ubuntu-vg
LV UUID 3K30n5-M7ew-Znww-km5q-IRQr-dqfz-E9Dtzr
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 2
LV Size 2.00 GiB
Current LE 512
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1
root@ubuntu:~#
Like "format" command in Solaris, we have command "fdisk -l" to display the disks... I compare all the time because it is easy to understand somethings when we already know few similar things...
root@ubuntu:~# fdisk -l | more
Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram1: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram2: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram3: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram4: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram5: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram6: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram7: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram8: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram9: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram10: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram11: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram12: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram13: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram14: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram15: 64 MiB, 67108864 bytes, 131072 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/sda: 8 GiB, 8589934592 bytes, 16777216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xa51c9f65
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 999423 997376 487M 83 Linux
/dev/sda2 1001470 16775167 15773698 7.5G 5 Extended
/dev/sda5 1001472 16775167 15773696 7.5G 8e Linux LVM
Disk /dev/mapper/ubuntu--vg-root: 5.5 GiB, 5926551552 bytes, 11575296 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/ubuntu--vg-swap_1: 2 GiB, 2147483648 bytes, 4194304 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
root@ubuntu:~#
Now I will add few disks for our learning purpose...(It is so easy in Oracle Virtual box or VMware Workstation).
Again logging in,
ubu@ubuntu:~$
ubu@ubuntu:~$ su -
Password:
root@ubuntu:~#
root@ubuntu:~#
root@ubuntu:~# df -kh
Filesystem Size Used Avail Use% Mounted on
udev 982M 0 982M 0% /dev
tmpfs 201M 3.3M 197M 2% /run
/dev/mapper/ubuntu--vg-root 5.4G 1.3G 3.8G 26% /
tmpfs 1001M 0 1001M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 1001M 0 1001M 0% /sys/fs/cgroup
/dev/sda1 472M 55M 393M 13% /boot
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 100K 0 100K 0% /run/lxcfs/controllers
tmpfs 201M 0 201M 0% /run/user/1000
root@ubuntu:~#
This time let us see output which we require,
root@ubuntu:~# fdisk -l | grep /dev/sd
Disk /dev/sda: 8 GiB, 8589934592 bytes, 16777216 sectors
/dev/sda1 * 2048 999423 997376 487M 83 Linux
/dev/sda2 1001470 16775167 15773698 7.5G 5 Extended
/dev/sda5 1001472 16775167 15773696 7.5G 8e Linux LVM
Disk /dev/sdb: 100 MiB, 104857600 bytes, 204800 sectors
Disk /dev/sdc: 100 MiB, 104857600 bytes, 204800 sectors
Disk /dev/sdd: 100 MiB, 104857600 bytes, 204800 sectors
root@ubuntu:~#
root@ubuntu:~# pvdisplay
--- Physical volume ---
PV Name /dev/sda5
VG Name ubuntu-vg
PV Size 7.52 GiB / not usable 2.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1925
Free PE 0
Allocated PE 1925
PV UUID KBhVnP-30fy-u8QV-IXHK-1zLE-98kR-1Ducfa
root@ubuntu:~#
Let us create PVs from disks we added,
root@ubuntu:~# pvcreate /dev/sdb /dev/sdc /dev/sdd
Physical volume "/dev/sdb" successfully created
Physical volume "/dev/sdc" successfully created
Physical volume "/dev/sdd" successfully created
root@ubuntu:~#
root@ubuntu:~# pvdisplay /dev/sdb /dev/sdc /dev/sdd
"/dev/sdd" is a new physical volume of "100.00 MiB"
--- NEW Physical volume ---
PV Name /dev/sdd
VG Name
PV Size 100.00 MiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID TFtlnW-ZiPx-GrQc-ws9d-md37-i8ij-QeB9gG
"/dev/sdb" is a new physical volume of "100.00 MiB"
--- NEW Physical volume ---
PV Name /dev/sdb
VG Name
PV Size 100.00 MiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID j7O15i-NSPS-ppJO-0263-x1hP-P222-veof5g
"/dev/sdc" is a new physical volume of "100.00 MiB"
--- NEW Physical volume ---
PV Name /dev/sdc
VG Name
PV Size 100.00 MiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID tNCHDy-8bdJ-JFS6-Zfhe-TFLK-YQgz-iDL9Lt
root@ubuntu:~#
Its time to create VG on our PV...
root@ubuntu:~# vgdisplay
--- Volume group ---
VG Name ubuntu-vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 7.52 GiB
PE Size 4.00 MiB
Total PE 1925
Alloc PE / Size 1925 / 7.52 GiB
Free PE / Size 0 / 0
VG UUID 9ZjLhk-IoTQ-Qfli-j9XS-PjgW-7FDv-3SaqTa
root@ubuntu:~#
root@ubuntu:~# vgcreate vol1 /dev/sdb /dev/sdc /dev/sdd
Volume group "vol1" successfully created
root@ubuntu:~#
root@ubuntu:~# vgdisplay
--- Volume group ---
VG Name ubuntu-vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 7.52 GiB
PE Size 4.00 MiB
Total PE 1925
Alloc PE / Size 1925 / 7.52 GiB
Free PE / Size 0 / 0
VG UUID 9ZjLhk-IoTQ-Qfli-j9XS-PjgW-7FDv-3SaqTa
--- Volume group ---
VG Name vol1
System ID
Format lvm2
Metadata Areas 3
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 3
Act PV 3
VG Size 288.00 MiB
PE Size 4.00 MiB
Total PE 72
Alloc PE / Size 0 / 0
Free PE / Size 72 / 288.00 MiB
VG UUID Kpd01H-UQqs-n1f9-VVA3-6buC-f1EO-pTK7v1
root@ubuntu:~#
Then its time for LV....
root@ubuntu:~# lvdisplay
--- Logical volume ---
LV Path /dev/ubuntu-vg/root
LV Name root
VG Name ubuntu-vg
LV UUID stDQ9W-X34I-4eFk-7rDq-SLRL-0kpv-hLki1z
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 1
LV Size 5.52 GiB
Current LE 1413
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0
--- Logical volume ---
LV Path /dev/ubuntu-vg/swap_1
LV Name swap_1
VG Name ubuntu-vg
LV UUID 3K30n5-M7ew-Znww-km5q-IRQr-dqfz-E9Dtzr
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 2
LV Size 2.00 GiB
Current LE 512
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1
root@ubuntu:~#
Mine is latest ubuntu server, so the default Filesystem will be ext4...
root@ubuntu:~# lvcreate -L 50M vol1 -n mydata1
Rounding up size to full physical extent 52.00 MiB
WARNING: ext4 signature detected on /dev/vol1/mydata1 at offset 1080. Wipe it? [y/n]: y
Wiping ext4 signature on /dev/vol1/mydata1.
Logical volume "mydata1" created.
root@ubuntu:~#
root@ubuntu:~# lvdisplay
--- Logical volume ---
LV Path /dev/ubuntu-vg/root
LV Name root
VG Name ubuntu-vg
LV UUID stDQ9W-X34I-4eFk-7rDq-SLRL-0kpv-hLki1z
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 1
LV Size 5.52 GiB
Current LE 1413
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0
--- Logical volume ---
LV Path /dev/ubuntu-vg/swap_1
LV Name swap_1
VG Name ubuntu-vg
LV UUID 3K30n5-M7ew-Znww-km5q-IRQr-dqfz-E9Dtzr
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 2
LV Size 2.00 GiB
Current LE 512
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1
--- Logical volume ---
LV Path /dev/vol1/mydata1
LV Name mydata1
VG Name vol1
LV UUID rggxbf-Tenn-kEZA-FdkQ-aRUb-umHP-o0wLoL
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-06 18:13:53 -0400
LV Status available
# open 0
LV Size 52.00 MiB
Current LE 13
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:2
root@ubuntu:~#
One more volume,
root@ubuntu:~# lvcreate -L 150M vol1 -n mydata2
Rounding up size to full physical extent 152.00 MiB
WARNING: ext4 signature detected on /dev/vol1/mydata2 at offset 1080. Wipe it? [y/n]: y
Wiping ext4 signature on /dev/vol1/mydata2.
Logical volume "mydata2" created.
root@ubuntu:~#
root@ubuntu:~# lvdisplay
--- Logical volume ---
LV Path /dev/ubuntu-vg/root
LV Name root
VG Name ubuntu-vg
LV UUID stDQ9W-X34I-4eFk-7rDq-SLRL-0kpv-hLki1z
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 1
LV Size 5.52 GiB
Current LE 1413
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:0
--- Logical volume ---
LV Path /dev/ubuntu-vg/swap_1
LV Name swap_1
VG Name ubuntu-vg
LV UUID 3K30n5-M7ew-Znww-km5q-IRQr-dqfz-E9Dtzr
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-04 19:35:42 -0400
LV Status available
# open 2
LV Size 2.00 GiB
Current LE 512
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:1
--- Logical volume ---
LV Path /dev/vol1/mydata1
LV Name mydata1
VG Name vol1
LV UUID rggxbf-Tenn-kEZA-FdkQ-aRUb-umHP-o0wLoL
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-06 18:13:53 -0400
LV Status available
# open 0
LV Size 52.00 MiB
Current LE 13
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:2
--- Logical volume ---
LV Path /dev/vol1/mydata2
LV Name mydata2
VG Name vol1
LV UUID jjFSn5-TE2X-13fq-j9we-QCwf-7ZJk-9H6FOl
LV Write Access read/write
LV Creation host, time ubuntu, 2016-10-06 18:14:10 -0400
LV Status available
# open 0
LV Size 152.00 MiB
Current LE 38
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 252:3
root@ubuntu:~#
Once done with the LV creation we should make FS on our volume...
root@ubuntu:~# mkfs.ext4 /dev/vol1/mydata1
mke2fs 1.42.13 (17-May-2015)
Creating filesystem with 53248 1k blocks and 13328 inodes
Filesystem UUID: e49e7c09-88fa-44c1-b988-2cef549dd049
Superblock backups stored on blocks:
8193, 24577, 40961
Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
root@ubuntu:~#
FS creation for our second volume...
root@ubuntu:~# mkfs.ext4 /dev/vol1/mydata2
mke2fs 1.42.13 (17-May-2015)
Creating filesystem with 155648 1k blocks and 38912 inodes
Filesystem UUID: c5bdb3ce-eb8a-4e31-89df-33dc802548d6
Superblock backups stored on blocks:
8193, 24577, 40961, 57345, 73729
Allocating group tables: done
Writing inode tables: done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: done
root@ubuntu:~#
root@ubuntu:~# mkdir -p /data1
root@ubuntu:~#
root@ubuntu:~# mkdir -p /data2
root@ubuntu:~#
Now I will mount the FS...
root@ubuntu:~# mount /dev/vol1/mydata1 /data1
root@ubuntu:~#
root@ubuntu:~# mount /dev/vol1/mydata2 /data2
root@ubuntu:~#
root@ubuntu:~# df -kh
Filesystem Size Used Avail Use% Mounted on
udev 982M 0 982M 0% /dev
tmpfs 201M 3.3M 197M 2% /run
/dev/mapper/ubuntu--vg-root 5.4G 1.3G 3.8G 26% /
tmpfs 1001M 0 1001M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 1001M 0 1001M 0% /sys/fs/cgroup
/dev/sda1 472M 55M 393M 13% /boot
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 100K 0 100K 0% /run/lxcfs/controllers
tmpfs 201M 0 201M 0% /run/user/1000
/dev/mapper/vol1-mydata1 47M 842K 42M 2% /data1
/dev/mapper/vol1-mydata2 144M 1.6M 132M 2% /data2
root@ubuntu:~#
To make it permanent mount, to mount at boot time just add the entries in the /etc/fstab file...
root@ubuntu:~# cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
/dev/mapper/ubuntu--vg-root / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=8d74a25e-fef8-45d4-ab90-1cb14910d7f0 /boot ext2 defaults 0 2
/dev/mapper/ubuntu--vg-swap_1 none swap sw 0 0
root@ubuntu:~#
root@ubuntu:~# vi /etc/fstab
root@ubuntu:~#
root@ubuntu:~# cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
/dev/mapper/ubuntu--vg-root / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=8d74a25e-fef8-45d4-ab90-1cb14910d7f0 /boot ext2 defaults 0 2
/dev/mapper/ubuntu--vg-swap_1 none swap sw 0 0
/dev/vol1/mydata1 /data1 ext4 rw 0 1
/dev/vol1/mydata2 /data2 ext4 rw 0 1
root@ubuntu:~#
After rebooting...
login as: ubu@10.0.0.143's password:
Welcome to Ubuntu 16.04.1 LTS (GNU/Linux 4.4.0-31-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
79 packages can be updated.
41 updates are security updates.
Last login: Thu Oct 6 18:44:28 2016
ubu@ubuntu:~$
ubu@ubuntu:~$ df -kh
Filesystem Size Used Avail Use% Mounted on
udev 982M 0 982M 0% /dev
tmpfs 201M 3.4M 197M 2% /run
/dev/mapper/ubuntu--vg-root 5.4G 1.3G 3.8G 26% /
tmpfs 1001M 0 1001M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 1001M 0 1001M 0% /sys/fs/cgroup
/dev/sda1 472M 55M 393M 13% /boot
/dev/mapper/vol1-mydata2 144M 1.6M 132M 2% /data2
/dev/mapper/vol1-mydata1 47M 842K 42M 2% /data1
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 201M 0 201M 0% /run/user/0
tmpfs 201M 0 201M 0% /run/user/1000
ubu@ubuntu:~$
That's it for the volume and filesystem creation under LVM...
####################################################################################
Lokesh, you are awesome ra. I am searching for Apache Web configuration Then I got to know still you are keep posting the stuff...Thanks..:)
ReplyDeleteSiva :) :)
Hi Shiva,
DeleteHow r u?? You are welcome. I am glad you liked my post.
Its just a hobby whenever I get some free time, I feel like posting something.