Bug#465491: mdadm use wrong metadata version as default
Ruben Puettmann
ruben at puettmann.net
Tue Feb 12 19:32:51 UTC 2008
Package: mdadm
Version: 2.6.4-1
Severity: critical
Justification: breaks lilo boot from raid1
Lilo can only boot from Raid1 devices with raid 0.9 metadata. Not with
raid 1.x. The manpage from mdadm says:
Options are:
0, 0.90, default
Use the original 0.90 format superblock. This format
limits arrays to 28 component devices and limits compo‐
nent devices of levels 1 and greater to 2 terabytes.
1, 1.0, 1.1, 1.2
Use the new version-1 format superblock. This has few
restrictions. The different sub-versions store the
superblock at different locations on the device, either
at the end (for 1.0), at the start (for 1.1) or 4K from
the start (for 1.2).
but the mdadm from debian doesn't use 0.9 as default. For more information
please look at : https://anti.teamidiot.de/nei/2006/10/softraid_lilo/
Ruben
--
Ruben Puettmann
ruben at puettmann.net
http://www.puettmann.net
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