** No longer affects: autopkgtest (Ubuntu)
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Touch seeded packages, which is subscribed to lxc in Ubuntu.
lxc-attach does not output stderr any more if stdout is redirected
Status in lxc package in Ubuntu:
With lxc 2.0.0~rc5-0ubuntu1 the autopkgtest LXC runner is still broken
(even with bug 1551960 fixed) when stderr is a terminal:
$ adt-run gzip --- lxc -s adt-wily
adt-run [10:15:45]: ERROR: erroneous package: got 10 lines of results from
extract where 4 expected:
gpgv: Signature made Mon 27 Oct 2014 09:48:46 AM CET using RSA key ID BD4CA59E
gpgv: Can't check signature: public key not found
dpkg-source: warning: failed to verify signature on ./gzip_1.6-4ubuntu1.dsc
Get:1 http://archive.ubuntu.com/ubuntu/ wily/main gzip 1.6-4ubuntu1 (dsc)
Get:2 http://archive.ubuntu.com/ubuntu/ wily/main gzip 1.6-4ubuntu1 (tar)
Get:3 http://archive.ubuntu.com/ubuntu/ wily/main gzip 1.6-4ubuntu1 (diff)
Thie first couple of lines are supposed to go to stderr, not stdout.
This works if stderr is not a terminal, but a pipe, with e. g. "adt-
run -l /dev/null gzip --- lxc -s adt-wily" (where stderr is sent to a
pipe which gets tee'ed to both the log file and the real stderr).
This is probably a regression in LXC, and it doesn't happen with older
LXC nor LXD nor any other backend. But it might also be some
intentional change which autopkgtest needs to be adjusted to, so for
now I keep tasks for both projects.
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