md.txt
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上传日期:2013-02-24
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- Tools that manage md devices can be found at
- http://www.<country>.kernel.org/pub/linux/daemons/raid/....
- You can boot (if you selected boot support in the configuration) with your md
- device with the following kernel command lines:
- for old raid arrays without persistent superblocks:
- md=<md device no.>,<raid level>,<chunk size factor>,<fault level>,dev0,dev1,...,devn
- for raid arrays with persistant superblocks
- md=<md device no.>,dev0,dev1,...,devn
-
- md device no. = the number of the md device ...
- 0 means md0,
- 1 md1,
- 2 md2,
- 3 md3,
- 4 md4
- raid level = -1 linear mode
- 0 striped mode
- other modes are only supported with persistant super blocks
- chunk size factor = (raid-0 and raid-1 only)
- Set the chunk size as 4k << n.
-
- fault level = totally ignored
-
- dev0-devn: e.g. /dev/hda1,/dev/hdc1,/dev/sda1,/dev/sdb1
-
- A possible loadlin line (Harald Hoyer <HarryH@Royal.Net>) looks like this:
- e:loadlinloadlin e:zimage root=/dev/md0 md=0,0,4,0,/dev/hdb2,/dev/hdc3 ro
-