In article <[EMAIL PROTECTED]> you write: >Hello, > >I have installed Debian 2.2 on a Sun Enterprise 420R. Everything seems to = >be working alright except software RAID, which is working fine on our x86 = >machines. The patch itself installs cleanly as does the kernel build, it = >is just the 'fdisk' and 'mkraid' tools that give me issues: > A couple of known problems with RAID on sparc on 2.2 are:
- The superblock contains a 64bit value (event counter) on a 32 bit boundary, and so ends up the wrong size - only MS-DOS partitions support auto-detect, and you really need autodetect for reliable RAID operation. There is a patch for the former at http://www.cse.unsw.edu.au/~neilb/patches/raid-2.2.20/raid-2.2.20.patch It is Ingo Molnar's patch applied to 2.2.20, and with the superblock event counter tidied up as is done in 2.4. However I believe that raid-sets made like this will not be forwards compatible with 2.4 kernels - I suggest you ask the linux-raid list for further information. Jonathan.
