I was trying that . . . using raidtools 0.90 without patching the kernel.
I finally got smart earlier today and download the kernel patches, and now
it works well. I was getting
exactly the same error messages. A lot of the documentation implies that
the newer kernels
support RAID as is, especially Red Hat, but that seems to be wrong. The
kernel patches are quite
necessary.
I started off with the Mandrake 6.0 and the raidtools 0.90 RPM. It can be
frustrating. If you are using
something like that, you should probably download the latest stable kernel
since you have to rebuild it.
If I have time, I may try to put together an RPM for Red Hat / Mandrake 6.0.
They are using 2.2.9 and I
upgraded to 2.2.12, so it could be a major task.
Bob
> -----Original Message-----
> From: Jones, Clay [SMTP:[EMAIL PROTECTED]]
> Sent: Friday, October 01, 1999 7:52 AM
> To: '-_ sergio _-'; [EMAIL PROTECTED]
> Subject: RE: undocumented error from /proc/mdstat: read_ahead not set
>
> You are using the "new" raid tools (version 90) without having the kernel
> patched with the "new" raid code.
>
> Kernel patches are found in
>
> <ftp://ftp.us.kernel.org/pub/linux/daemons/raid/alpha>
>
> Clay
>
> -----Original Message-----
> From: -_ sergio _- [ <mailto:[EMAIL PROTECTED]>]
> Sent: Friday, October 01, 1999 6:42 AM
> To: [EMAIL PROTECTED]
> Subject: undocumented error from /proc/mdstat: read_ahead not set
>
>
> hello, i am trying to establish a raid0 array on my two ide disks,
> but:
>
> [root@serek ~]# mkraid --really-force /dev/md0
> DESTROYING the contents of /dev/md0 in 5 seconds, Ctrl-C if unsure!
> handling MD device /dev/md0
> analyzing super-block
> disk 0: /dev/hdc1, 26588488kB, raid superblock at 26588416kB
> disk 1: /dev/hdd1, 26588488kB, raid superblock at 26588416kB
> mkraid: aborted, see the syslog and /proc/mdstat for potential clues.
>
> [root@serek ~]# cat /proc/mdstat
> Personalities : [1 linear] [2 raid0]
> read_ahead not set
> md0 : inactive
> md1 : inactive
> md2 : inactive
> md3 : inactive
>
> what does mean "read_ahead not set"? i am rather sure that everything
> with my disks is all right.
>
> i am not on list, so please answer on priv email.
>
> thanks for raidtools! :-)
>
> serek
> --
> <http://pl.qmail.org/~ser/> | on_irc: serek at #serek | icq#27579212
> __________________________________________________________________
> I'd rather have two girls at 21 each than one girl at 42.
> -- W.C. Fields
>
