Hi everybody,
some days ago I asked for help, becouse I got 'read_ahead not set' in
/proc/mdstat. Now I understood the problem mainly due to incorrecty
application of inattentive application of the HOWTO. I'll write my mistakes
for the benefit of other people that in future may search for the answer in
the archives:
Of course I didn't do all this in a sudden, I managed to make all
permutations ;-)
0. I used mkraid from raidtool 0.41 and reading instructions from 0.90
1. I used modules for raid1, but forgot to 'modprobe raid1'.
2. I switched to persistent-superblock but didn't set 'autodetect of RAID
arrays' in the kernel (really, w/ 2.2.13 from Slackware there is no such
entry, I had to generate the kernel w/ 2.2.14 from Red-Hat, but I sow is
present also in 2.2.12 from Red-Hat ?!?)
If you don't have autodetect you *NEED* 'raidstart', RedHat issue that
automatically from rc.sysinit, Slackware doesn't.
thanks to all who helped and pointed out documents.
sandro
*:-)
PS. What does the patch do? I didn't apply the patch, and it worked, is that
becouse RedHat has already applied the patch? (guess that's why 2.13
didn't have RAID autodetect...). Why isn't the patch in the kernel
directly?
--
Sandro Dentella *:-)
e-mail: [EMAIL PROTECTED] [EMAIL PROTECTED]
