[SOLVED] How to enlarge the root partition volume?

jimtony · 03-28-2012, 01:44 AM

Hi all,

I want to enlarge the root partition(/dev/sda1,eg.).
Which command is better to do this?

Thanks.

jimtony

catkin · 03-28-2012, 01:57 AM

This question has been asked many times on LQ. Some of the previous threads are listed here.

devUnix · 03-28-2012, 04:27 AM

If it is an LVM partition then "lvextend" command can be used. Check "man lvextend" for details.

jimtony · 03-29-2012, 02:14 AM

Now I would change my partition to LVM.It is useful.

catkin · 03-29-2012, 08:12 AM

Quote:

Originally Posted by jimtony

Now I would change my partition to LVM.It is useful.

Yes -- LVM is great if you don't mind the extra complexity.

chrism01 · 03-29-2012, 07:05 PM

Start by showing us

Code:

fdisk -l

& that's a lowercase L there

jimtony · 03-30-2012, 10:12 PM

I have some windows partition and some /dev/sda ext4 partition.
Ext4 partition is not easy to enlarge size.
So I want to change the partition type to LVM.

syg00 · 03-31-2012, 01:56 AM

You were asked to provide information. We can't help you if you won't help us.

jimtony · 04-01-2012, 05:27 AM

The "fdisk -l" output is as follows:

linux-ua9t:~ # df -h
Filesystem Size Used Avail Use% Mounted on
rootfs 20G 5.1G 14G 28% /
devtmpfs 2.0G 8.0K 2.0G 1% /dev
tmpfs 2.0G 76K 2.0G 1% /dev/shm
tmpfs 2.0G 692K 2.0G 1% /run
/dev/sda8 20G 5.1G 14G 28% /
tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup
tmpfs 2.0G 0 2.0G 0% /media
tmpfs 2.0G 692K 2.0G 1% /var/run
tmpfs 2.0G 692K 2.0G 1% /var/lock
/dev/sda6 180G 36G 144G 20% /windows/E
/dev/sda9 111G 1.7G 108G 2% /home
/dev/sda5 150G 4.3G 146G 3% /windows/D
/dev/sda3 101G 44G 57G 44% /windows/C

chrism01 · 04-01-2012, 08:38 PM

No, that's 'df -h'; you were asked for 'fdisk -l' a COMPLETELY different cmd (although handy to know).
Incidentally, you may need to be root or use sudo to run fdisk.

jimtony · 04-01-2012, 09:34 PM

I must apologize to chrism01 for my mistake.I didn't check carefully.
I have changed my partition to LVM.It is easy to enlarge size.
The "fdisk -l" command output is as follows(now it's LVM partition type):

Quote:

linux-odv8:~ # fdisk -l

Disk /dev/sda: 640.1 GB, 640135028736 bytes
255 heads, 63 sectors/track, 77825 cylinders, total 1250263728 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 identifier: 0xd746db65

Device Boot Start End Blocks Id System
/dev/sda1 2048 24475647 12236800 27 Hidden NTFS WinRE
/dev/sda2 24475648 24680447 102400 7 HPFS/NTFS/exFAT
/dev/sda3 24680448 234396335 104857944 7 HPFS/NTFS/exFAT
/dev/sda4 * 234397696 1250260991 507931648 f W95 Ext'd (LBA)
/dev/sda5 234399744 548972543 157286400 7 HPFS/NTFS/exFAT
/dev/sda6 548974592 925292543 188158976 7 HPFS/NTFS/exFAT
/dev/sda7 925294592 925616127 160768 83 Linux
/dev/sda8 925618176 1250242559 162312192 8e Linux LVM

Disk /dev/mapper/system-home: 110.4 GB, 110368915456 bytes
255 heads, 63 sectors/track, 13418 cylinders, total 215564288 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 identifier: 0x00000000

Disk /dev/mapper/system-home doesn't contain a valid partition table

Disk /dev/mapper/system-root: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders, total 104857600 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 identifier: 0x00000000

Disk /dev/mapper/system-root doesn't contain a valid partition table

Disk /dev/mapper/system-swap: 2147 MB, 2147483648 bytes
255 heads, 63 sectors/track, 261 cylinders, total 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
Disk identifier: 0x00000000

Disk /dev/mapper/system-swap doesn't contain a valid partition table