I've done a quick search of the archives, and didn't find anything
relevant, or I missed it. :(
I've just installed the latest Slackware release, 13.0, in 64-bit mode,
that uses kernel 2.6.29.6. Previously, I was running 12.2, in 32-bit,
which used kernel 2.6.27.31. After booting, I noticed that the drives
on the raid had not been mounted. Checking through dmesg, I noticed
that the "drive" attached to the card had not been correctly
recognised. Here's the relevant messages, about the card, and the
drive, from dmesg:
megaraid cmm: 2.20.2.7 (Release Date: Sun Jul 16 00:01:03 EST 2006)
megaraid: 2.20.5.1 (Release Date: Thu Nov 16 15:32:35 EST 2006)
megaraid: probe new device 0x101e:0x1960:0x101e:0x0511: bus 1:slot 4:func 0
megaraid 0000:01:04.0: PCI INT A -> Link[LNK1] -> GSI 19 (level, high)
-> IRQ 19
megaraid: fw version:[N661] bios version:[1.01]
scsi4 : LSI Logic MegaRAID driver
scsi[4]: scanning scsi channel 0 [Phy 0] for non-raid devices
scsi[4]: scanning scsi channel 1 [Phy 1] for non-raid devices
scsi[4]: scanning scsi channel 2 [Phy 2] for non-raid devices
scsi[4]: scanning scsi channel 3 [Phy 3] for non-raid devices
scsi[4]: scanning scsi channel 4 [virtual] for logical drives
scsi scan: INQUIRY result too short (5), using 36
scsi 4:4:0:0: Direct-Access PQ: 0 ANSI: 0
sd 4:4:0:0: [sda] Sector size 0 reported, assuming 512.
sd 4:4:0:0: [sda] 1 512-byte hardware sectors: (512 B/512 B)
sd 4:4:0:0: [sda] Write Protect is off
sd 4:4:0:0: [sda] Mode Sense: 00 00 00 00
sd 4:4:0:0: [sda] Asking for cache data failed
sd 4:4:0:0: [sda] Assuming drive cache: write through
sd 4:4:0:0: [sda] Sector size 0 reported, assuming 512.
sd 4:4:0:0: [sda] 1 512-byte hardware sectors: (512 B/512 B)
sd 4:4:0:0: [sda] Write Protect is off
sd 4:4:0:0: [sda] Mode Sense: 00 00 00 00
sd 4:4:0:0: [sda] Asking for cache data failed
sd 4:4:0:0: [sda] Assuming drive cache: write through
sda: unknown partition table
sd 4:4:0:0: [sda] Attached SCSI disk
sd 4:4:0:0: Attached scsi generic sg1 type 0
Obviously, it's this "scsi scan: INQUIRY result too short (5), using
36", causing the drive not to be correctly recognised. Normally, I'd
expect to get:
scsi 4:4:0:0: Direct-Access MegaRAID LD 0 RAID5 1430G N661 PQ: 0 ANSI: 2
sd 4:4:0:0: [sda] 2930307072 512-byte hardware sectors (1500317 MB)
In order to eliminate either the change in kernel version, or the change
in architecture, as the culprit, I booted the machine, from both the
32-bit, and 64-bit, DVDs from Slack. With the 32-bit kernel, the drive
was correctly recognised, but not with the 64-bit. So, it's definitely
the change in architecture causing this, not the change in kernel version.
The full dmesg can be found here: ftp.BogoLinux.net/pub together with
the dmesg from the 32-bit system, with kernel 2.6.27.31.
Cheers,
Eddie
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