Hello, all. I work with lvm ( kernel 2.4.17 + ext3-2.4-0.9.17-2418p3 patch ) but i can't snapshot a ext3 fs directly # lvcreate --snap --name snap --size +1G /dev/vgtest/lvtest # mount -o ro -t ext3 /dev/vgtest/lvtest /snap /mnt/snap ext3 can't work , ext2 work If I mount readonly the etx3 filesystem, snapshot-it, and remount rw the filesystem ( and ro the snapshot ) it work fine. # mount -o remount,ro /dev/vgtest/test ; # lvcreate --snap --name snap --size +1G /dev/vgtest/lvtest; # mount -o remount,rw /dev/vgtest/test ; # mount -o ro -t ext3 /dev/vgtest/snap /mnt/snap ext3 now work fine, but I must stop all services I have apply the lvm-lock-patch ( linux-2.4.11-VFS-lock.patch ) , and _now_ I can snapshot a ext3 filesystem whitout remounting-it ro. # lvcreate --snap --name snap --size +1G /dev/vgtest/lvtest # mount -o ro -t ext3 /dev/vgtest /snap /mnt/snap ext3 work fine. Does anyone have test this patch for production system ? Does anyone know a test suite for this patch and snapshot ? TIA
