Thank you very much, I think this is the good way !
On 08/09/2018 11:30 AM, Fajar A. Nugraha wrote:
On Thu, Aug 9, 2018 at 4:11 PM, Pierre Couderc <pie...@couderc.eu
<mailto:pie...@couderc.eu>> wrote:
I want to "format" my LXD computer :
So I would like to :
- create a LXD storage on an auxiliary (btrfs) disk, something
like : lxd storage create mytmp btrfs
source=/mnt/my_btrfs_unit/lxd_subvolume (is this possible ?)
- move my contianer to this new storage . How ?
- fulley reinstall my server and LXD
- "attach" my /mnt/my_btrfs_unit/lxd_subvolume to new LXD (how ?)
- move back my container
- detach and remove my tmp subvolume
If it was on another computer it would be a simple "move"...
So basically you just want to backup and restore the complete lxd
setup? What are you currently using?
Basically you'd just need to copy /var/lib/lxd and whatever storage
backend you use (I use zfs), and then copy them back later. Since I
also put /var/lib/lxd on zfs (this is a custom setup), I simply need
to export-import my pool.
If you currently use the default zfs-on-loopback backend, you simply
need to copy /var/lib/lxd and the loopback file (I don't remember the
name offhand). If you use btrfs, then the easiest way is to detach the
disk before formatting the pool (plus copy /var/lib/lxd, obviously).
"Moving" a container to a new storage is, AFAIK, a more complicated
process. The only way I know of is basically create a container on
that new pool, and overwrite the content of its rootfs. I don't
recommend this for your particular needs.
--
Fajar
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