On 03/18/12 10:34 AM, madunix@xxxxxxxxx wrote:
> I need to shrink /home(755G) to 150GB and use free space to add to the
> existing /(50G).
> #df -kh
> Filesystem Size Used Avail Use% Mounted on
> /dev/mapper/vg_web-lv_root 50G 7.8G 40G 17% /
> tmpfs 7.8G 384K 7.8G 1% /dev/shm
> /dev/sda2 485M 79M 381M 18% /boot
> /dev/sda1 200M 256K 200M 1% /boot/efi
> /dev/mapper/vg_web-lv_home755G 6.2G 711G 1% /home
>
> Need to have the step, can this be done online or need to go offline
> (umount) the file systems.
IMHO, the only sane way to shrink a file system is to back it up to
other media, delete it, then recreate it at the new smaller size and
restore the backup.
my /'s are rarely bigger than 18GB, but I usually mount other file
systems for stuff like /var/www, /var/pgsql-x.y/data, etc.
--
john r pierce N 37, W 122
santa cruz ca mid-left coast
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