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Summary: Systems with mirrored LVM drives do need labeling
https://bugzilla.redhat.com/show_bug.cgi?id=473136
Summary: Systems with mirrored LVM drives do need labeling
Product: Fedora Documentation
Version: devel
Platform: All
OS/Version: Linux
Status: NEW
Severity: medium
Priority: medium
Component: release-notes
AssignedTo: relnotes(a)fedoraproject.org
ReportedBy: jjcogliati-r1(a)yahoo.com
QAContact: kwade(a)redhat.com
Classification: Fedora
In the release notes section 2.1.4.2 for Fedora 10, it says "Systems that use
Logical Volume Management (LVM) and the device mapper usually do not require
relabeling." This is incorrect if you have a mirrored LVM partition, since the
UUID for the mirrored partition is not unique:
/dev/mapper/VolGroup00-lvol0_mimage_1:
UUID="c9bee71a-ebda-4357-a509-cd92e4a60697" SEC_TYPE="ext2"
TYPE="ext3"
/dev/mapper/VolGroup00-lvol0_mimage_0:
UUID="c9bee71a-ebda-4357-a509-cd92e4a60697" SEC_TYPE="ext2"
TYPE="ext3"
/dev/mapper/VolGroup00-lvol0: UUID="c9bee71a-ebda-4357-a509-cd92e4a60697"
TYPE="ext3" LABEL="mirrored" SEC_TYPE="ext2"
If there is no label, with the UUID mount can pick up one of the mirror images
(lvol0_mimage_1 or lvol0_migage_0) which will fail.
This is probably a bug in blkid or anaconda as well, so I will file one under
blkid.
For the release notes, it should probably mention that mirrored LVM partitions
do need to be labeled.
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