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Full Discussion: How to increase root space from another partition?
Operating Systems Linux How to increase root space from another partition? Post 302820295 by alister on Wednesday 12th of June 2013 12:49:35 PM
Old 06-12-2013
Quote:
Originally Posted by jegaraman
It is possibel and easy if you user Logical volumes .

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

Quote:
Originally Posted by jegaraman
And also ...Why do you increase the root partition ...It is wise to have lesser space in root and allow it not to increase ....
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
Last edited by alister; 06-12-2013 at 01:54 PM..
 

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LEARN ABOUT DEBIAN

dtc_setup_vps_disk

dtc_setup_vps_disks(8)					      System Manager's Manual					    dtc_setup_vps_disks(8)

NAME

       dtc_setup_disk - setup LVM disks for using it as a VM

SYNOPSIS

       dtc_setup_vps_disk.sh VPS_NUMBER HDD_SIZE SWAP_SIZE [ lvm|loopback ]

DESCRIPTION

       dtc_setup_vps_disk.sh This shell script is a part of the dtc-xen package that is to be used by the dtc panel to manage a Xen VPS server.

       This script is used to create partitions to be used by a VPS later on.  It will create a normal partition that will be used as a root disk,
       and a swap partition.

       dtc_setup_disk is to be used by the dtc-xen SOAP server, but can also be used as a standalone userland tool.

       If the partition(s) exists, then this script will delete it/them first.

OPTIONS

       VPS_NUMBER has to be a number between 01 and 19. Let's say the number is 16, and that dtc-xen is configured to use the volume group  called
       lvm1, then this script will create /dev/lvm1/xen16 and /dev/lvm1/xen16swap.

       HDD_SIZE Size in MB of the VPS partition to create.

       SWAP_SIZE  Size in MB of the VPS swap partition to create. If the dtc-xen SOAP server is used to create the VPS, then it will create a swap
       partition of the exact same size as the memory.

       IMAGE_TYPE This parameter can have 2 values: either lvm or loopback. If ommited, then lvm is used. If lvm is used, then	this  script  will
       create a partition using lvmcreate, otherwise it will create an image file. Both will later be used for the VPS.

EXAMPLE

       dtc_setup_vps_disk 04 15360 256 lvm

       This will create 2 LVM partition to be used by the VPS named xen04, the first one being a root partition of 15 GB, and the second one being
       a swap partition of 256 MB.

VERSION

       This documentation describes dtc_setup_vps_disk version 0.3.15.	See http://www.gplhost.com/software-dtc-xen.html for updates.

SEE ALSO

       dtc_reinstall_os(8), dtc_kill_vps_disk(8)

															    dtc_setup_vps_disks(8)
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