On Sun, May 2, 2010 at 5:01 PM, Rudi Ahlers <rudiahlers at gmail.com> wrote: > > heh, there's plenty space left on the drive: > > [root at zaxen02 ~]# pvscan > PV /dev/md1 VG LVM01 lvm2 [232.69 GB / 141.69 GB free] > Total: 1 [232.69 GB] / in use: 1 [232.69 GB] / in no VG: 0 [0 ] > > As far as I know, one needs to unmount a volume in order to resize it, but > /var can't be unmounted. With LVM you don't need to unmount /var. You can do it on a running system with the following caveats: 1) You'll need some free space on /var. I.e., not extra space in the volume group, but a little extra space in the /var partition itself. In other words, don't try to resize a completely full /var partition. 2) There is a possibility that you'll need to resize some metadata. If so, this has to be done offline via a boot disk for /var.