Boot into rescue, do not allow the rescue disk to detect and mount the OS partition
# lvm vgchange -a y
# e2fsck -f /dev/VolGroup00/LogVol00
# resize2fs -f /dev/VolGroup00/LogVol00 70G
# lvm lvreduce -L70G /dev/VolGroup00/LogVol00
not sure whether it will have data loss
also not sure of how your directory structure looks if you r in rescue mode...
Last edited by ntoken; 12-03-2008 at 08:09 PM.