Quoting Thomas Dalichow (i...@thomasdalichow.de): > Cheers guys, > > I'm currently fooling around a little with LXC 1.0 on the latest Ubuntu > (Desktop) 14.04 daily build (current). > > I created a physical volume and a volume group on top of it named vg1 > and created a container as follows: > > $: lxc-create -t download -n 1 -B lvm --fssize 1G --vgname vg1 > --lvname lv-1 -- -d ubuntu -r trusty -a amd64 > > This worked... > > Logical volume "lv-1" created > Setting up the GPG keyring > Downloading the image index > Downloading the rootfs > Downloading the metadata > The image cache is now ready > Unpacking the rootfs > > --- > You just created an Ubuntu container (release=trusty, arch=amd64). > > Now on trying to clone I got the error > > $: lxc-clone -o 1 -n 2 > Volume group "vg2" not found > lxc_container: Error creating new lvm blockdev > lxc_container: failed getting pathnames for cloned > storage: /dev/vg1/lv-1 > lxc_container: Error copying storage > > Renaming the volume group (vg1) to "lxc" and renaming the logical volume > of the container (lv-1) and of course modifying the rootfs of container > "1" did the trick: > > $: vgrename vg1 lxc > Volume group "vg1" successfully renamed to "lxc" > $: lvrename /dev/lxc/lv-1 1 > Renamed "lv-1" to "1" in volume group "lxc" > $: lxc-clone -o 1 -n 2 > Logical volume "2" created > Created container 2 as copy of 1 > > Now here's my question: is there any naming convention to adhere to in > order for LXC (especially lxc-clone) to determine the correct name of > the new LVM device and the underlying volume group?
Yeah. Lxc-clone can't really know your naming convention *1, so it searches for the old container name and replaces it with the new. So in /dev/vg1/lv-1, instead of making it /dev/vg1/lv-2, it turned it into /dev/vg2/lv-1. Just slightly longer names - like c1 and c2 - and you should be fine :) -serge *1 - for instance you need it changed after the last '/', but many containers have /var/lib/lxc/$name/rootfs, and so we can't just say use the last '/' _______________________________________________ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
