I'm here processing open-scsi in the Xenial and Yakkety SRU queues.
However, I feel that this SRU is far from ready to be accepted into the
proposed pockets and am inclined to reject the uploads to prevent
further confusion.

1) Stakeholders don't appear to have consensus on how this problem
should be fixed. Can you figure this out amongst yourselves before
uploading? If you end up at an impasse, I'd appreciate a description and
clarity on what the impasse is exactly to help the SRU team (or the TB
if Zesty I guess) make a decision.

2) Given that the first attempt has regressed stable releases already
and had to be backed out, I'd expect more effort to bake this in the
development release first, rather than throwing it at stable releases at
the same time.

3) I expect the "Test Case" and "Regression Potential" paperwork to make
reference to the regression that has already hit the updates pocket,
with a test plan to stop that sort of thing happening again, but these
sections don't appear to have been touched.

4) open-iscsi, which is in the upload queue for Xenial and Yakkety,
doesn't currently have its development task marked Fix Released and I
see no explanation for this. I see that this is likely due to a dep8
failure blocking proposed migration. But given point 2, perhaps we
shouldn't ignore that as it might be hiding a real failure?

5) It may be that the open-iscsi change itself is uncontroversial and
that's why it is uploaded without the others. But if we did accept open-
iscsi into proposed, then we'd end up with a verification-needed tag,
which might soon turn into verification-done. If we then end up
accepting initramfs-tools or isc-dhcp, then we may end up racing the
tags, causing confusion and accidental release of an proposed update
that has not been verified. I'd like to confirm with a more experienced
SRU team member whether this could actually happen, but it seems to me
that given the complexity of this SRU it would make more sense to first
get consensus on all the changes intended to be landed to fix this
issue, land everything into proposed at once, verify them both
individually and functionally all together while they are all in
proposed together, and then release them all together to the updates
pocket. Doing them piecemeal doesn't make much sense to me, and I feel
increases regression risk. Additionally one update could end up
insufficient as you debate and change the approach, in which case we'd
need an additional SRU (and risk another regression, etc) for no good
reason.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu.
https://bugs.launchpad.net/bugs/1621507

Title:
  initramfs-tools configure_networking() fails to dhcp ipv6 addresses

Status in MAAS:
  Fix Committed
Status in initramfs-tools package in Ubuntu:
  In Progress
Status in isc-dhcp package in Ubuntu:
  In Progress
Status in klibc package in Ubuntu:
  Won't Fix
Status in open-iscsi package in Ubuntu:
  In Progress
Status in initramfs-tools source package in Xenial:
  Triaged
Status in isc-dhcp source package in Xenial:
  In Progress
Status in klibc source package in Xenial:
  Won't Fix
Status in open-iscsi source package in Xenial:
  In Progress
Status in initramfs-tools source package in Yakkety:
  In Progress
Status in isc-dhcp source package in Yakkety:
  In Progress
Status in klibc source package in Yakkety:
  Won't Fix
Status in open-iscsi source package in Yakkety:
  In Progress
Status in klibc package in Debian:
  New

Bug description:
  initramfs' configure_networking function uses ipconfig to configure the 
network.
  ipconfig does not support dhcpv6.  See: 
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627164

  Related bugs:
    * bug 1229458: grub2 needed changes
    * bug 1621615: network not configured when ipv6 netbooted into cloud-init
    * bug 1635716: Can't bring up a machine on a dual network (ipv4 and ipv6) 

  
  [Impact]

  It is not possible to netboot Ubuntu with a network-based root
  filesystem in an ipv6-only environment.  Anyone wanting to netboot in
  an ipv6-only environment is affected.

  These uploads address this by replacing the one-off klibc dhcp client
  (IPv4-only) with the defacto standard isc-dhcp-client, and thereby
  provide both ipv6 and ipv4 DHCP configuration.

  [Test Case]

  See Bug 1229458.  Configure radvd, dhcpd, and tftpd for your ipv6-only
  netbooting world.  Pass the boot process an ipv6 address to talk to,
  and see it fail to configure the network.

  [Regression Potential]

  1) This increases the uncompressed initramfs size by approximately 500KB, 
since isc-dhcp-client is added, but klibc is still needed for some other 
things, and is therefore present.  On systems with a very small /boot 
partition, this could result in failure to upgrade the initramfs.
  2) In at least some cases, DHCP network configuration shifts from klibc's 
ipconfig to isc-dhcp-client's dhclient.  This should be of minimal risk, as 
isc-dhcp-client is in very very widespread use.  In the event of a regression, 
network boot would fail, but the prior kernel should still be bootable.

To manage notifications about this bug go to:
https://bugs.launchpad.net/maas/+bug/1621507/+subscriptions

-- 
Mailing list: https://launchpad.net/~touch-packages
Post to     : touch-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~touch-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to