Hi again,
I'm having another problem with overlayfs and unprivileged lxc
containers. When cloning with overlayfs, I get
"overlayfs: missing upperdir or lowerdir or workdir"
but cloning appears to succeed.
I was using ubuntu 14.04 as host OS. Since overlayfs got kernel support
in 3.19 kernels, I updated the kernel to 3.19 using the packages
linux-headers-generic-lts-vivid & linux-image-generic-lts-vivid. I then
recreated a new mother container, without adding a user to it. I cloned
it again using lxc-clone -o mother2 -n overlay2 -B overlayfs -s and got
again the error:
[130.841743] overlayfs: missing upperdir or lowerdir or workdir
Created container XY as snapshot of X
Although it starts the clone despite that error, I still keep getting
"failed to whiteout" and "Operation not permitted" when doing lengthy
installations, see previous thread.
Here:
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1409425
they report the same problem with lxc-start-ephemeral, and claim it to
be fixed with current version. After upgrading to lxc version to 1.1
using the ppa:ubuntu-lxc/daily, I still get
"overlayfs: missing upperdir or lowerdir or workdir"
However, fortunately after the update to lxc 1.1, non-trivial
installations succeed !! I tried by installing wordpress and > 150MB of
dependencies, which repeatedly failed before.
So, my remaining question is: can the error message be simply ignored?
"overlayfs: missing upperdir or lowerdir or workdir."
Thanks for clarification,
Ingvar
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