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aceFruchtsaft
Guru
Joined: 16 May 2004
Posts: 438
Location: Vienna, Austria
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 Posted: Mon Oct 02, 2006 6:15 pm Post subject: Intel (ICH8R) Raid 5 not detected |
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Hi,
I'm trying to install Gentoo on my new Core 2 Duo system which has an ASUS P5B Deluxe motherboard. I wanted to set up dmraid according to this guide: http://gentoo-wiki.com/HOWTO_Install_Gentoo_with_NVRAID_using_dmraid.
However, my /dev/mapper does not contain anything but the control file, so the existing RAID 5 (which works in Windows) was not detected.
Did anyone get this to work with the amd64 livecd-2006.1? Do I have to anything besides loading the raid5 kernel module and boot the livecd with gentoo dodmraid dolvm2?
Any help would be greatly appreciated. |
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jakobdettner
n00b
Joined: 22 Oct 2006
Posts: 10
Location: Germany / BW
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Triggaaaaa
n00b
Joined: 30 Nov 2006
Posts: 1
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| Posted: Sun Dec 03, 2006 6:12 pm Post subject: |
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Hi,
same problem here. My system is a Core2Duo with Asus P5B Deluxe using Intel ICH8 Host RAID5.
I used KernelOfTruth's LiveCD (amd64-release (r4) of small gentoo) and booted using "genkernel-irqpoll dodmraid".
dmraid -ay lists the raid5-array correctly with its name and status: ok
However there is no entry in /dev/mapper/ except the control-file.
During boot I get the message: | Code: | | ERROR: device-mapper target type "raid45" not in kernel |
Using dmesg I found: | Code: | device-mapper: table: 253:0: raid45: unknown target type
device-mapper: ioctl: error adding target to table |
However KernelOfTruth told me that raid5-support is included in his LiveCD.
I also found something about a raid45-kernel-patch (http://people.redhat.com/~heinzm/sw/dm/dm-raid45/) but then I would have to create an own LiveCD. Since I'm just a noob with regard to installing gentoo I haven't got any ideas at the moment.
Thanks in advance for any help! |
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kernelOfTruth
Watchman
Joined: 20 Dec 2005
Posts: 6111
Location: Vienna, Austria; Germany; hello world :)
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Zarhan
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Joined: 27 Feb 2004
Posts: 1020
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| Posted: Mon Jun 02, 2008 9:04 pm Post subject: |
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| Hi - is this included in amd64-r8 now? |
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Zarhan
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Joined: 27 Feb 2004
Posts: 1020
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| Posted: Mon Jun 02, 2008 9:58 pm Post subject: |
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Ah - tested it - no, it isn't.
How to install Gentoo on a ICH9R fakeraid running Raid5 (and has a Windows partition, so Linux software raid is not an option)? I just need one livecd that actually supports Raid5. Any ideas? |
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Zarhan
Veteran
Joined: 27 Feb 2004
Posts: 1020
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| Posted: Wed Jun 04, 2008 12:12 pm Post subject: |
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| Well, I managed with Ubuntu 8.04 and some instructions from their Bugzilla - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/220493/comments/16 - and once I had Gentoo kernel in the rest worked just fine as long as I compiled the raid45 module IN kernel (for some reason genkernel --dmraid doesn't want to copy in raid45.ko as a module to the initrd). Anyway, working now.. |
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kernelOfTruth
Watchman
Joined: 20 Dec 2005
Posts: 6111
Location: Vienna, Austria; Germany; hello world :)
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