On 18.3.2012 18:34, madu...@gmail.com 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.
What filesystem? Assuming ext3, this cannot shrunk without unmounting. I believe the following *should* work for ext3 $ umount /home $ e2fsck -f /dev/vg_web/lv_home $ resize2fs /dev/vg_web/lv_home 150g $ lvresize -L 150g /dev/vg_web/lv_home $ mount /home I am not sure how safe it is. Take care! -- Kind Regards, Markus Falb
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