Intel ISW soft raid disk seen, shown in "partition disks," but fails to modify (mounted RO)

Bug #869292 reported by jensting
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
debian-installer (Ubuntu)
New
Medium
Unassigned

Bug Description

Kubuntu, 11.10 beta 2, amd64 (CD: kubuntu-11.10-beta2-alternate-amd64.iso)

Disk: RAID 10 set controlled by the Intel PCH. Existing Linux installation from which the partition tool correctly picks up partition table.

Takes commands (set partition type/mount point etc) but fails to modify and therefore is stalled.

The description of the disk is

"RAIDmd126 device #:RAIDactive device #(read-only)RAID10 device .." followed by incomplete list of sda/b/c/d

The #(read-only) looks ominous to me...

The Linux install I use at the moment uses DM (not MD), so I tried rd_NO_MDIMSM and rd.md.imsm=0 options inspired by advice already received with other distributions.

Best Regards

Jens

Tags: oneiric raid
tags: added: oneiric raid
Changed in debian-installer (Ubuntu):
importance: Undecided → Medium
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