On Wed, Jan 27, 2016 at 05:09:52PM +0100, david.an...@bli.uzh.ch wrote:
> Hi
> 
> I have noticed that LXD uses some UIDs/GIDs by default I haven't set up and 
> which aren't represented in /etc/sub[ug]id files.
> Interestingly, they are different from instance to instance: one one root is 
> mapped on 1'000'000 (not 100'000), on another it's 265'536.
> Now when I copy the rootfs of a container offline between different LXD or 
> LXC instances according to 
> http://stackoverflow.com/questions/33377916/migrating-lxc-to-lxd doesn't the 
> UID/GID mapping need to be the same?

No, the maps can be different.

> If not, why not?

Because LXD uidshifts the filesystems for you when you do `lxc copy`.

Tycho
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