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rpbarlow
n00b
Joined: 11 Dec 2004
Posts: 8
Location: Raleigh, NC
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 Posted: Sun Dec 03, 2006 7:09 pm Post subject: RAID related boot problems |
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Howdy, I'm trying a new install (since I hosed my last one) and I figured I'd give the RAID+LVM thing a go. I followed the guide at http://www.gentoo.org/doc/en/gentoo-x86+raid+lvm2-quickinstall.xml and everything seemed to have worked ok, but when I boot I get 3 no-fun (TM) lines:
VFS: Cannot open root device "md3" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Now, my relevant grub lines read:
root (hd0,0)
kernel /boot/kernel root=/dev/md3
My partition layout is just like the one show in the guide:
/boot -> RAID 1 of hda1 and hdc1
swap -> hda2 and hdc2
/ -> RAID 1 of hda3 and hdc3
LVM -> RAID 0 of hda4 and hdc5 (I used an extended partition on hdc because it it much larger than hda and I wanted to create an hdc6 for the additional space)
I am able to boot from the livecd and mount the arrays just fine, so I believe it might be a kernel problem. But I did enable all of the necessary kernel options listed in the guide and they are built into the kernel (as is ext2/3 which are the only file systems in use). Any clues?
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 55426
Location: 56N 3W
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| Posted: Sun Dec 03, 2006 8:04 pm Post subject: |
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rpbarlow,
means you are missing the high level IDE driver, the IDE chipset driver or MS-DOS Partition table support from your kernel. They all need to be built in.
As your root is on raid, you also need the partitions to be type fd, or the raid will not be auto started by the kernel and the raid personality for root must be build into the kernel too.
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Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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rpbarlow
n00b
Joined: 11 Dec 2004
Posts: 8
Location: Raleigh, NC
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| Posted: Sun Dec 03, 2006 8:34 pm Post subject: IDE Support |
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I believe my problem might be the IDE support, but I believe that I have enabled the correct settings in the kernel config (obviously not though). How do I figure out how it works on the liveCD on not on my implementation?
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rpbarlow
n00b
Joined: 11 Dec 2004
Posts: 8
Location: Raleigh, NC
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| Posted: Sun Dec 03, 2006 8:46 pm Post subject: |
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Device Drivers --->
ATA/ATAPI/MFM/RLL support --->
<*> ATA/ATAPI/MFM/RLL support
<*> Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support
...
<*> Include IDE/ATA-2 DISK support
...
<*> generic/default IDE chipset support
Is there anything else I might need for my IDE drives? They aren't connected to a PCI card (connected directly to an Intel controller on the MOBO)
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 55426
Location: 56N 3W
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| Posted: Sun Dec 03, 2006 8:54 pm Post subject: |
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rpbarlow,
You need lots more. This post is for Intel ICH chipsets <=ICH6.
For all other chipsets, swap the PIIX entry for your specific chipset driver.
Run lspci from the liveCD to find out what that is.
If you choose the wrong chipset specific part, it will still operate but there will be no DMA support, so it will be slow.
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Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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rpbarlow
n00b
Joined: 11 Dec 2004
Posts: 8
Location: Raleigh, NC
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| Posted: Sun Dec 03, 2006 9:17 pm Post subject: Problem solved! |
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Thanks! Problem solved!
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-Randy |
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Kernel & Hardware
