Al Sparks spake the following on 5/2/2007 6:59 PM: > I'm new to lvm. I decided to decrease the space of a logical volume. > So I did a: > $ df -m > Filesystem 1M-blocks Used Available Use% Mounted on > /dev/mapper/VolGroup00-LogVol00 > 1953 251 1602 14% / > /dev/sda2 494 21 448 5% /boot > tmpfs 1014 0 1014 0% /dev/shm > /dev/mapper/VolGroup00-LogVol05 > 48481 6685 39295 15% /home > /dev/mapper/VolGroup00-LogVol03 > 961 18 894 2% /tmp > /dev/mapper/VolGroup00-LogVol01 > 7781 2051 5329 28% /usr > /dev/mapper/VolGroup00-LogVol02 > 5239 327 4642 7% /var > > > > $ sudo lvm lvreduce -L -1000M /dev/VolGroup00/LogVol05 > Rounding up size to full physical extent 992.00 MB > WARNING: Reducing active and open logical volume to 47.91 GB > THIS MAY DESTROY YOUR DATA (filesystem etc.) > Do you really want to reduce LogVol05? [y/n]: y > Reducing logical volume LogVol05 to 47.91 GB > Logical volume LogVol05 successfully resized LVM even warned you --IN CAPS-- "THIS MAY DESTROY YOUR DATA". I guess it was right. I haven't had much luck with reducing a volume below its initial size. I usually make a new LV and rsync or cp -a the data over to it. I try to leave some free space just for this. Or add a drive temporarily. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!!