Hi, It's a LXD bug which mis-reports the image size. This has been fixed upstream and the fix is in LXD 2.0.4.
| x (9 more) | 3ec1d8bbca28 | yes | ubuntu 16.04 LTS amd64 (release)
(20160815) | x86_64 | 174.73MB | Aug 15, 2016 at 12:00am (UTC) |
This was caused by the switch to squashfs images, LXD would report the
size of tar+squashfs instead of just selecting squashfs. This also would
lead to the wrong fingerprint being reported (that of the tarball
instead of squashfs).
On Mon, Aug 29, 2016 at 05:20:55PM +0300, Andrey Repin wrote:
> Greetings, Simos Xenitellis!
>
> > Hi All,
>
> > Until a few weeks ago, the Xenial image ("ubuntu:x" for x86_64), as
> > reported by
>
> > lxc image list ubuntu:
>
> > used to be around 140MB.
> > See, for example,
> > https://simos.info/blog/playing-around-with-lxd-containers-lxc-on-ubuntu/
> > (138.23MB)
>
>
> > However, if you run now the same command, the size of the image has
> > gone up to 315MB:
>
> > | x (9 more) | 295d53ae6db4 | yes | ubuntu 16.04 LTS amd64
> > (release) (20160815) | x86_64 | 315.82MB | Aug 15, 2016 at
> > 12:00am (UTC) |
>
> > It looks like an error, since all other images in the list are all under
> > 150MB.
>
> Sounds just like someone using tar in addition mode, and adding the same files
> over and over again.
> Can you please dump the TAR header and see what really contains in the image?
> If I'm right, the image will contain lots of duplicated paths.
>
>
> --
> With best regards,
> Andrey Repin
> Monday, August 29, 2016 17:19:41
>
> Sorry for my terrible english...
>
> _______________________________________________
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> lxc-users@lists.linuxcontainers.org
> http://lists.linuxcontainers.org/listinfo/lxc-users
--
Stéphane Graber
Ubuntu developer
http://www.ubuntu.com
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