** Also affects: initramfs-tools (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: open-iscsi (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: initramfs-tools (Ubuntu Oracular)
Importance: Undecided
Status: New
** Also affects: open-iscsi (Ubuntu Oracular)
Importance: Undecided
Status: New
** Changed in: initramfs-tools (Ubuntu)
Status: In Progress => Fix Committed
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu.
https://bugs.launchpad.net/bugs/2091904
Title:
IPv6 iBFT boot runs into a timeout
Status in initramfs-tools package in Ubuntu:
Fix Committed
Status in open-iscsi package in Ubuntu:
Confirmed
Status in initramfs-tools source package in Noble:
New
Status in open-iscsi source package in Noble:
New
Status in initramfs-tools source package in Oracular:
New
Status in open-iscsi source package in Oracular:
New
Bug description:
iSCSI Boot Firmware Table (iBFT) can provide the network configuration
that is needed to boot over iSCSI. The iBFT can contain IPv4 or IPv6
addresses. local-top/iscsi calls `configure_networking`. The default
behaviour of `configure_networking` is DHCPv4 on all available
interfaces (if ip= and ip6= are not set). If iBFT provides IPv6
addresses and no DHCPv4 server are running, `configure_networking`
will only try DHCPv4 and run into a timeout.
Placing the single line "ISCSI_AUTO=true" into
/etc/iscsi/iscsi.initramfs, or use the kernel boot line option
"iscsi_auto" will configure the network devices based on iBFT, but the
code in `local-top/iscsi` will assume that the addresses are IPv4.
dracut on the other hand has the kernel boot line parameters
`rd.iscsi.firmware=1` and `rd.iscsi.ibft` and `ibft` as option for the
`ip` parameter. The `ibft` option is a bit under documented.
https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/installation_guide/chap-
anaconda-boot-options mentions `ip=ibft` and dracut.cmdline mentions
it.
There are multiple ways to address the timeout with IPv6 iBFT:
1) Extend `local-top/iscsi` to differentiate between IPv4 and IPv6
when "iscsi_auto" is used. This information needs to be passed to
`configure_networking` to only try to bring up that device and
protocol.
2) Use `ip=ibft` as indicator to use ibft as source for the network
configuration. If no ip= parameter is set, local-top/iscsi should
default to ip=ibft when calling configure_networking.
Both solutions require passing data to configure_networking.
Requiring the user to set `ip=off ip6=on` is not a good user
experience and not a solution in my opinion.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/2091904/+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
