[Bug 1465567] Re: Kernel panic - not syncing: Too many boot init vars at `nomdmonddf'
Chris J Arges
1465567 at bugs.launchpad.net
Wed Jun 17 16:10:48 UTC 2015
Hello Iain, or anyone else affected,
Accepted mdadm into trusty-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/mdadm/3.2.5-5ubuntu4.2
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 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 to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed. In either case, details of your testing will help
us make a better decision.
Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in
advance!
** Changed in: mdadm (Ubuntu Trusty)
Status: In Progress => Fix Committed
** Tags added: verification-needed
** Changed in: mdadm (Ubuntu Vivid)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1465567
Title:
Kernel panic - not syncing: Too many boot init vars at `nomdmonddf'
Status in mdadm package in Ubuntu:
Fix Released
Status in mdadm source package in Trusty:
Fix Committed
Status in mdadm source package in Vivid:
Fix Committed
Bug description:
[ Description ]
Every time grub-pc is configured when mdadm is installed, "nomdmonddf
nomdmonisw" is added to GRUB_CMDLINE_LINUX_DEFAULT in
/etc/default/grub. Eventually this overflows a limit in the kernel
which causes panics and failed boots.
Let's only add this the once.
I had this in my cmdline
linux /boot/vmlinuz-3.19.0-20-generic root=UUID=980689ca-e7d9-4a99-8230-33b8b6e917cd ro nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw
nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf
nomdmonisw nomdmonddf nomdmonisw systemd.debug-shell nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw
[ Fix ]
Only add the parameters if they aren't already there.
[ QA ]
1. Look at GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub.
2. apt-get install mdadm
3. apt-get install --reinstall grub-pc
Repeat 3 a few times.
Before the SRU, you should see "nomdmonddf nomdmonisw" several times
and after it just once.
[ Regression potential ]
The script could have a syntax error. It could not work as intended.
It might cause conffile prompts.
Check upgrades and new installs in as many scenarios as we can.
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