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authorOlaf Hering <olh@suse.de>2007-02-10 04:45:47 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-11 13:51:31 -0500
commit4419d1ac7def3c2f74cab15e4a1c69cffcaadedd (patch)
treeadeb2b715cbd53d94cf71127f4b4bd19d5544cd5 /include/linux/genhd.h
parentaa58d61d18b89b98521364550b481fd9bd18c3b6 (diff)
[PATCH] relax check for AIX in msdos partition table
The patch to identify AIX disks and ignore them has caused at least one machine to fail to find the root partition on 2.6.19. The patch is: http://lkml.org/lkml/2006/7/31/117 The problem is some disk formatters do not blow away the first 4 bytes of the disk. If the disk we are installing to used to have AIX on it, then the first 4 bytes will still have IBMA in EBCDIC. The install in question was debian etch. Im not sure what the best fix is, perhaps the AIX detection code could check more than the first 4 bytes. The whole partition info for primary partitions is in this block: dd if=/dev/sdb count=$(( 4 * 16 )) bs=1 skip=$(( 0x1be )) All other data do not matter, beside the 0x55aa marker at the end of the first block. Signed-off-by: Olaf Hering <olh@suse.de> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/genhd.h')
-rw-r--r--include/linux/genhd.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 0a022b2f63fc..7a566fad3f72 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -21,6 +21,8 @@ enum {
21 WIN98_EXTENDED_PARTITION = 0x0f, 21 WIN98_EXTENDED_PARTITION = 0x0f,
22 22
23 LINUX_SWAP_PARTITION = 0x82, 23 LINUX_SWAP_PARTITION = 0x82,
24 LINUX_DATA_PARTITION = 0x83,
25 LINUX_LVM_PARTITION = 0x8e,
24 LINUX_RAID_PARTITION = 0xfd, /* autodetect RAID partition */ 26 LINUX_RAID_PARTITION = 0xfd, /* autodetect RAID partition */
25 27
26 SOLARIS_X86_PARTITION = LINUX_SWAP_PARTITION, 28 SOLARIS_X86_PARTITION = LINUX_SWAP_PARTITION,