I had the same issue with the PERC 5i card and gentoo. What happened
was the LiveCD saw the drive as /dev/sdb but when I installed and then
rebooted it came up as /dev/sda. I just pointed my grub.conf at the
/dev/sda and it booted correctly.
--Brian
Patrik Jansson wrote:
Hi list,
We're mostly running FreeBSD on our systems but now I'm supposed to
install a dedicated MySQL server and some benchmarks has shown that
MySQL runs a lot better in a Linux environment and I especially like
Gentoo Linux (maybe because it's like FreeBSD in many ways).
Anywho...
The problem is that I can´t boot the system after a fresh install.
I may boot the Live CD without problems and from there I can install the
system. The drives (RAID-1) is shown as device /dev/sdb
(sub question: this cannot be just one of the two drives in the RAID
right? I guess the PERC won't allow direct access to just ONE drive)
Installation goes just fine and in the kernel configuration I have
enabled every LSI entry under Device Drivers. But when I boot the system
it can't mount the root decice:
>> Determining root device...
!! Block device /dev/sdb3 is not a valid root device...
!! The root block device is unspecified or not detected.
I have compiled the drivers into the kernel (not as modules).
I have even tried copying the Live CD kernel and just changed the LSI
drivers to be compiled into the kernel as opposed to modules. Still no
luck though.
Here's a cut from the boot messages:
megaraid cmm: 2.20.2.7 (Release Date: Sun Jul 16 00:01:03 EST 2006)
megaraid: 2.20.4.9 (Release Date: Sun Jul 16 12:27:22 EST 2006)
megasas: 00.00.03.05 Mon Oct 02 11:21:32 PDT 2006
megasas: 0x1028:0x0015:0x1028:0x1f03: bus 2:slot 14:func 0
ACPI: PCI Interrupt 0000:02:0e.0[A] -> GSI 78 (level, low) -> IRQ 17
megasas: FW now in Ready state
scsi0 : LSI Logic SAS based MegaRAID driver
scsi 0:0:0:0: Direct-Access FUJITSU MAX3147RC D206 PQ: 0 ANSI: 3
scsi 0:0:1:0: Direct-Access FUJITSU MAX3147RC D206 PQ: 0 ANSI: 3
scsi 0:0:8:0: Enclosure DP BACKPLANE 1.00 PQ: 0 ANSI: 5
scsi 0:2:0:0: Direct-Access DELL PERC 5/i 1.00 PQ: 0 ANSI: 5
SCSI device sda: 285474816 512-byte hdwr sectors (146163 MB)
sda: test WP failed, assume Write Enabled
sda: asking for cache data failed
sda: assuming drive cache: write through
SCSI device sda: 285474816 512-byte hdwr sectors (146163 MB)
sda: test WP failed, assume Write Enabled
sda: asking for cache data failed
sda: assuming drive cache: write through
sda: unknown partition table
sd 0:2:0:0: Attached scsi disk sda
scsi 0:0:8:0: Attached scsi generic sg0 type 13
sd: 0:2:0:0:: Attached scsi generic sg1 type 0
If I open the shell (when the kernel can't mount the root device) and
look into /dev/ I see this:
# ls /dev/sd*
/dev/sda /dev/sdb
I appreciate all help I can get
Thanks,
-Patrik
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