Public bug reported:
When I try to upgrade from 15.10 Wily to 16.04 Xenial (actual
development version) within an LXC container, the upgrade script hangs
at the message „Calculating the changes”.
Steps to reproduce:
1. Make an LXC container with Wily (quickest option is to use lxc-create -t
download, choose ubuntu, wily, amd64/i386).
2. Boot up the container, log in, „apt-get -y install ubuntu-release-upgrader”.
3. Start the upgrade with „do-release-upgrade -d”.
You will see that the upgrade process will hang at the message
„Calculating the changes”.
The process which hangs: „/usr/bin/python3 /tmp/ubuntu-release-upgrader-
1mpotr5d/xenial --mode=server --frontend=DistUpgradeViewText --devel-
release”
With strace, it is revealed that the process hangs at a „futex” system call:
futex(0x7f4190000c10, FUTEX_WAIT_PRIVATE, 0, NULL
This system call never returns, the process must be interrupted with
CTRL-C or kill.
Upgrading to any previous release within an LXC container works without
problems, therefore I consider it as a regression.
** Affects: lxc (Ubuntu)
Importance: Undecided
Status: New
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: regression-release wily xenial
** Also affects: lxc (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1511875
Title:
Can't upgrade from 15.10 Wily to 16.04 Xenial in LXC container
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1511875/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
