About shrinking LVM and then adding the freed space to another OS on dualboot system Post: 302690111

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Operating Systems Linux About shrinking LVM and then adding the freed space to another OS on dualboot system Post 302690111 by satimis on Wednesday 22nd of August 2012 12:55:06 PM

08-22-2012

Registered User

About shrinking LVM and then adding the freed space to another OS on dualboot system

Hi all,

Fedora 17, 64bit
Ubuntu 12.04 desktop 64bit
HD 160G

I installed Ubuntu 12.04 on the HD first taking up the whole disc. Later I added/installed Fedora 17 selecting the "Shrink" option and save the bootloader on /dev/sda1 to make them dualboot. Installation is successful with dulaboot option. Unfortunately by mistake I retained insufficient space for Ubuntu 12.04 now only about 100M left when it is up.

Ubuntu 12.04
$ df -h

Code:

Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       4.0G  3.7G  107M  98% /
udev            3.8G  4.0K  3.8G   1% /dev
tmpfs           1.6G  880K  1.6G   1% /run
none            5.0M     0  5.0M   0% /run/lock
none            3.8G  156K  3.8G   1% /run/shm

Fedora 17
$ df -h

Code:

Filesystem                       Size  Used Avail Use% Mounted on
rootfs                            50G  4.0G   46G   9% /
devtmpfs                         3.8G     0  3.8G   0% /dev
tmpfs                            3.8G  100K  3.8G   1% /dev/shm
tmpfs                            3.8G  1.9M  3.8G   1% /run
/dev/mapper/vg_fedora17-lv_root   50G  4.0G   46G   9% /
tmpfs                            3.8G     0  3.8G   0% /sys/fs/cgroup
tmpfs                            3.8G     0  3.8G   0% /media
/dev/sda3                        497M   60M  413M  13% /boot
/dev/mapper/vg_fedora17-lv_home   78G  1.4G   72G   2% /home

I'm now trying to find a not-too-complicate way shrinking /home of Fedora 17 and then adding the freed space to / of Ubuntu 12.04.

This is a spare HD NOT for production. I'll use it testing Cloud running on Fedora 17 and Ubuntu 12.04 respectively. There is not much data nor much work done on both OS. The only work I did several day before was installing rotation desktop on Ubuntu 12.04. It is now working.

I think I have to split the job into 2 sections

1)
Shrinking Fedora lv_home

2)
Adding the freed space to Ubuntu /

Would following documents be relevant to 1) above?

9.5. Using the LVM utility system-config-lvm
9.5.*Using the LVM utility system-config-lvm

Linux LVM: Resizing partitions.
http://www.microdevsys.com/WordPress...ng-partitions/

I'm still hunting around for documents to be used for 2) above.

Thanks.

B.R.
satimis

satimis

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LEARN ABOUT DEBIAN

dtc_kill_vps_disk

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

NAME

       dtc_kill_vps_disk - destroy LVM disks for freeing space

SYNOPSIS

       dtc_kill_vps_disk VPS_NUMBER [ lvm|loopback ]

DESCRIPTION

       dtc_kill_vps_disk 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 delete a partitions that was used by a VPS.  It will delete the normal partition that was used as a root disk, and
       the swap partition.

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

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.

       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 lvm

       This will delete the 2 LVM partitions that were used by the VPS named xen04, the first one being the root partition,  and  the  second  one
       being the swap partition.

VERSION

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

SEE ALSO

       dtc_reinstall_os(8), dtc_setup_vps_disk(8)

															      dtc_kill_vps_disk(8)

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