Ubuntu
mdadm package

race between mdadm and scsi scan

Bug #1308423 reported by Nick Moffitt
22
This bug affects 4 people
Affects Status Importance Assigned to Milestone
mdadm (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

This brings back memories of the venerable old bug #75681

We're booting precise systems with the linux-image-generic-lts-saucy kernel (3.11, as you'll see in the attached boot log), and have some specialised SSD devices we RAID together to form a single block device. Unfortunately, the md autodetection and assembly seems to happen before all of these devices have reported in, causing a halted boot sitting at a busybox prompt (not fun for servers!)

As a workaround, we set scsi_mod.scan=sync in the kernel boot options, which makes boot block on the scsi scan. I'm not sure that's the best solution, but it felt the most appropriate at the time!

See original description
Revision history for this message
Nick Moffitt (nick-moffitt) wrote :
description: updated
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in mdadm (Ubuntu):
status: New → Confirmed
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