Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Felix Frank wrote: > > Ok, i try to unnderstand: > > With lvcreate -s i create the snapshot. This creates an > entry /dev/vgxxx/lvxxx. > > Then i use kpartx for ... what ? Creating a second entry in > /dev/... ? > > > > I tested this: > > created a snapshot /dev/vg1/lv_home_snapshot. > > kpartx -lv /dev/vg1/lv_home_snapshot says ... nothing. > > "lv_home_snapshot"? Is that an LV that contains a partitioned > disk image? > If it is, it's not clear to me why no partitions are > displayed. I've used this with an image of a VM harddrive before. > > Sorry to be not quite helpful. > lv_home_snapshot is a snapshot form a normal LV which has a filesystem. My question is: I like to install vm's using KVM into plain lv's which have no filesystem. How can i backup a partition which has no filesystem without using dd ? DD is slow and copies _every_ sector of a 50GB lv, although just e.g. 20GB are occupied. Bernd