| 2008-07-02 16:43:09 |
Etienne Goyer |
bug |
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added bug |
| 2008-08-04 21:11:32 |
Etienne Goyer |
description |
Under certain circumstances, boot may fail and stop at an initramfs shell prompt with an error such as:
mount: Mounting /dev/md0 on /root failed: device or ressource busy
This could happen, for example, when the root file system is on a software RAID 1 volume. The problem could be resolved by adding a "sleep 10" or "udevadm settle" in /usr/share/initramfs-tools/init, before the function mountroot is being called.
Discussing the problem with Scott, it appear that the race condition could be better avoided by letting udev settle after each call to vol_id in /usr/share/initramfs-tools/scripts/local instead. A package in his PPA implement such a change: https://launchpad.net/~scott/+archive. |
Under certain circumstances, boot may fail and stop at an initramfs shell prompt with an error such as:
mount: Mounting /dev/md0 on /root failed: device or ressource busy
This could happen, for example, when the root file system is on a software RAID 1 volume. The problem could be resolved by adding a "sleep 10" or "udevadm settle" in /usr/share/initramfs-tools/init, before the function mountroot is being called.
Discussing the problem with Scott, it appear that the race condition could be better avoided by letting udev settle after each call to vol_id in /usr/share/initramfs-tools/scripts/local instead. A package in his PPA implement such a change: https://launchpad.net/~scott/+archive.
== SRU ==
Impact: Boot failure can happen intermittently. The failure mode is very unfriendly (being dumped in an initramfs shell). The cause is non-apparent and hard to find.
Development: This problem have been fixed in intrepid, specifically in version 0.92bubuntu2. However, the changelog do not mention that it LP: #244926.
Patch for the current version in hard: http://launchpadlibrarian.net/15761888/initramfs-tools_0.85eubuntu36_0.85eubuntu39.2.diff.gz
TEST CASE: I was unable to reproduce the problem reliably. The problem was reported to me (EtienneG) by a third party. thi s third party confirmed the fix provided by Scott make booting reliable.
Regression potential: None that I can see.
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| 2008-08-04 21:11:54 |
Etienne Goyer |
bug |
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added subscriber Ubuntu Stable Release Updates Team |
| 2008-08-05 07:33:34 |
Martin Pitt |
bug |
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added subscriber Scott James Remnant |
| 2008-08-05 07:35:04 |
Martin Pitt |
initramfs-tools: status |
New |
Incomplete |
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| 2008-08-05 07:35:04 |
Martin Pitt |
initramfs-tools: statusexplanation |
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I subscribed Scott, so that he has a chance to answer. Please clarify what the patch is (the description just refers to teh entire package diff.gz) and the intrepid status. Based on the description, the change sounds pretty straightforward and safe, thus ok for SRU. |
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| 2008-08-05 07:35:21 |
Martin Pitt |
initramfs-tools: assignee |
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scott |
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| 2008-08-05 07:35:21 |
Martin Pitt |
initramfs-tools: statusexplanation |
I subscribed Scott, so that he has a chance to answer. Please clarify what the patch is (the description just refers to teh entire package diff.gz) and the intrepid status. Based on the description, the change sounds pretty straightforward and safe, thus ok for SRU. |
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| 2008-08-05 14:32:57 |
Scott James Remnant (Canonical) |
initramfs-tools: status |
Incomplete |
Fix Released |
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| 2008-08-06 06:48:16 |
Steve Langasek |
initramfs-tools: status |
New |
Fix Committed |
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| 2008-08-06 06:48:32 |
Steve Langasek |
bug |
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added subscriber SRU Verification |
| 2008-08-11 13:35:06 |
Martin Pitt |
initramfs-tools: status |
Fix Committed |
Fix Released |
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| 2008-08-11 13:35:06 |
Martin Pitt |
initramfs-tools: statusexplanation |
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Copied to hardy-updates. |
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| 2009-12-05 06:54:25 |
Launchpad Janitor |
branch linked |
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lp:ubuntu/hardy-proposed/initramfs-tools |
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