[Bug 1792905] Re: [2.5] iSCSI systemd services fails and blocks for 1 min 30 seconds
Adam Conrad
adconrad at 0c3.net
Thu Sep 20 13:11:39 UTC 2018
Hello Blake, or anyone else affected,
Accepted livecd-rootfs into bionic-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/livecd-
rootfs/2.525.9 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.
If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.
Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in
advance!
** Changed in: livecd-rootfs (Ubuntu Bionic)
Status: In Progress => Fix Committed
** Tags added: verification-needed verification-needed-bionic
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https://bugs.launchpad.net/bugs/1792905
Title:
[2.5] iSCSI systemd services fails and blocks for 1 min 30 seconds
Status in cloud-images:
Triaged
Status in MAAS:
Triaged
Status in cloud-initramfs-tools package in Ubuntu:
Fix Released
Status in livecd-rootfs package in Ubuntu:
Fix Committed
Status in open-iscsi package in Ubuntu:
Confirmed
Status in cloud-initramfs-tools source package in Xenial:
Confirmed
Status in livecd-rootfs source package in Xenial:
Invalid
Status in open-iscsi source package in Xenial:
Confirmed
Status in cloud-initramfs-tools source package in Bionic:
Confirmed
Status in livecd-rootfs source package in Bionic:
Fix Committed
Status in open-iscsi source package in Bionic:
Confirmed
Status in cloud-initramfs-tools source package in Cosmic:
Fix Released
Status in livecd-rootfs source package in Cosmic:
Fix Committed
Status in open-iscsi source package in Cosmic:
Confirmed
Bug description:
[Impact]
* Affects environments where the base image is read-only but kernel
modules are copied from the initramfs to the real root via cloud-
initramfs-copymods package.
* This affects users of our stable release images available from http
://cloud-images.ubuntu.com.
* The attached fixes ensure /lib/modules always exists by creating it
explicitly instead of relying on it to come from a package.
[Test Case]
* Download http://cloud-images.ubuntu.com/bionic/current/bionic-
server-cloudimg-amd64.squashfs
* Unpack it via `sudo unsquashfs bionic-server-cloudimg-
amd64.squashfs`
* Inspect the unpacked root filesystem and find that '/lib/modules'
is missing.
* Install local build scripts as described at
https://github.com/chrisglass/ubuntu-old-fashioned (note: you will
need ubuntu-old-fashioned master for cosmic)
* Re-build the images using the updated livecd-rootfs package.
* Unpack the resulting livecd.ubuntu-cpc.squashfs artifact using
unsquashfs again.
* Inspect the unpacked root filesystem and find that '/lib/modules'
exists.
* It is pure luck that package purges which are done analogously in
Cosmic image builds do not remove '/lib/modules', hence this fix is
introduced there, as well.
* Xenial is not affected.
* Test builds were carried out for Cosmic and Bionic with the expected
results.
[Regression Potential]
* This is a fix to a regression. The existence of the directory had
previously been ensured, but the mkdir call got lost in recent re-
factoring. See also:
https://bazaar.launchpad.net/~ubuntu-core-dev/livecd-rootfs/bionic-
proposed/revision/1678
https://bazaar.launchpad.net/~ubuntu-core-dev/livecd-
rootfs/trunk/revision/1681
* Packaging tools should not take offense at the existence of a
directory, even if it was not part of a package. So potential for
unforseeable regressions is very low.
===ORIGINAL BUG DESCRIPTION===
Let me first start with saying MAAS is *not* using iSCSI anymore and
is *NOT* in this case either.
For some reason now using enlistment, commissioning, and deploying the
ephemeral environment will block for 1 min 30 seconds waiting for the
iSCSI daemon to succeed, which it never does.
This increases the boot time drastically.
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