Linux

Hi OS Experts

I would like to increase root partition from another partition so that I can save more documents in Home and Desktop. whether it is possible without formating root partition if so please explain

here is o/p of df -h

Code:

Filesystem      Size  Used Avail Use% Mounted on
/dev/sda9       107G   98G  2.9G  98% /
udev            1.9G  4.0K  1.9G   1% /dev
tmpfs           776M  940K  775M   1% /run
none            5.0M     0  5.0M   0% /run/lock
none            1.9G  2.3M  1.9G   1% /run/shm
/dev/sda8       962M   68M  846M   8% /boot
/dev/sda10    80G   75G  770M 100% /Old_server
/dev/sdb1       932G  735G  198G  79% /media/Iomega
/dev/sda5       98G   80G   18G   82% /media/DATA_1

Here I am not using /dev/sda10 it contains some old files which I will delete and finally I would like to add 80GB from /dev/sda10 to /dev/sda9

Code:

OS    : Ubuntu 12.04 LTS 32-Bit
RAM   : 4GB
Swap  : 8GB

Please anyone help me

It would be possible if you were using LVM. With your current setup it is impossible as far as I know.

this is only possible on the fly with LVM's as the above post suggests.Your root partition should already be an Logical Volume, but there is no more space to increase the volume, so just add a disk, add it to the volume group of root and use lvextend to increase the lvm.

It can be done, if the partition to be grown is followed, on-disk, by the partition to be subsumed.

resize2fs(8) - Linux man page

Regards,
Alister

It is possibel and easy if you user Logical volumes .

Otherwise , we need to take back up of the root partition and reformat it.

And also ...Why do you increase the root partition ...It is wise to have lesser space in root and allow it not to increase ....

While it never hurts to have a backup, your categorical statement regarding reformatting is incorrect. ext2, ext3, ext4, xfs, btrfs can all be grown (even while mounted, with >= 2.6 kernels). Perhaps other filesystems can be grown as well, but I did not check.

Obviously, if the filesystem currently occupies the full partition, the partition itself needs to be redefined. However, this is not a destructive operation; it merely modifies a value in the partition table. The partition starting point must obviously be preserved.

I agree with this, but it's not something with which I ever concern myself for personal systems. I prefer the simplicity of one large partition. For a production machine, however, it's useful to be able to tune filesystems to their function (small number of large files or large number of small files?) and to mount each with as many restrictions as possible (noexec, nosuid, nodev, etc).

Regards,
Alister

I think it's especially vital for personal systems. You don't need 5 little fiddly partitions, but having just two can save you a lot of trouble. If your machine gets hard powered off or crashes for whatever reason, disk corruption tends to land wherever it's busy writing. You wouldn't let that happen much to a production machine but it happens to a personal computer a lot.

Separate root means it can begin booting, see that /home needs fsck-ing and do so and get on with its business.

All one glob means kernel panic, you need a recovery CD to fix it.