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skyhydro
n00b
Joined: 16 May 2006
Posts: 17
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 Posted: Sat Jun 10, 2006 7:19 pm Post subject: Accessing Windows Raid0 Drive from Gentoo |
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I have been trying to make Gentoo recognize a Windows raid0 for some time to no avail. The annoying thing is during Gentoo's startup I get many error messages for the raid drives. In this setup hde is set as the boot drive in the bios.
This raido has windows OS but I don't want to boot to it from Gentoo at this point, just trying to access its data from Gentoo. In the bios I can choose the raid0 drive as the first boot and it works perfectly. So the raid0 is fully functional under Windows.
| Code: | # fdisk -l
Disk /dev/hdc: 122.9 GB, 122942324736 bytes
255 heads, 63 sectors/track, 14946 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdc1 * 1 14946 120053713+ 7 HPFS/NTFS
Disk /dev/hdd: 80.0 GB, 80026361856 bytes
16 heads, 63 sectors/track, 155061 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Device Boot Start End Blocks Id System
/dev/hdd1 * 1 125 62968+ 83 Linux
/dev/hdd2 126 4094 2000376 82 Linux swap / Solaris
/dev/hdd3 4095 43778 20000736 83 Linux
/dev/hdd4 43779 155061 56086632 83 Linux
Disk /dev/hde: 61.4 GB, 61492838400 bytes
255 heads, 63 sectors/track, 7476 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hde1 * 1 14951 120093876 7 HPFS/NTFS
Disk /dev/hdg: 61.4 GB, 61492838400 bytes
16 heads, 63 sectors/track, 119150 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes
Disk /dev/hdg doesn't contain a valid partition table
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I would appreciate some help if someone can show me what I need to do to access this raid setup. |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54805
Location: 56N 3W
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| Posted: Sat Jun 10, 2006 7:26 pm Post subject: |
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skyhydro,
Your raid is provided by BIOS raid. Somwhat cruelly called fakeraid.
You need some third party software that provides dmraid. | Code: | | emerge sys-fs/dmraid |
is a good start.
You also need ntfs support for your kernel.
dmraid provides a kermel module. Modprobe it and if you are lucky, your raid devices will appear in /dev, when they can be mounted in the normal way.
_________________
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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skyhydro
n00b
Joined: 16 May 2006
Posts: 17
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| Posted: Sat Jun 10, 2006 9:33 pm Post subject: |
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I ended up unmasking dmraid then was able to emerge as instructed. I also rebuilt the kernel with dmraid and restarted the machine with the new kernel. I then tried modprobe md but I get module md not found error. I read somewhere if you get "control" in response to ls /dev/mapper then dmraid was not installed right. "control" is what I get now. Also I have NTFS support because I can read a NTFS Windows drive from Gentoo, but not this raid0 drive.
Any ideas how to fix this? I can provide more information but not sure what to do so you can help me further. Please assume very limited knowledge on the subject. Thanks. |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54805
Location: 56N 3W
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| Posted: Sat Jun 10, 2006 9:40 pm Post subject: |
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skyhydro,
dmraid in the kernel is not related to the emerge dmraid.
They are two different things. Kernel dmraid is for Logical Volume Manager support.
emerge dmraid is the driver for your BIOS raid.
You need to modprobe the module from the emerge.
_________________
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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skyhydro
n00b
Joined: 16 May 2006
Posts: 17
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| Posted: Sun Jun 11, 2006 2:23 pm Post subject: |
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| Quote: | | You need to modprobe the module from the emerge. |
Could you show me how to do that. Thanks. |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54805
Location: 56N 3W
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| Posted: Sun Jun 11, 2006 3:01 pm Post subject: |
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skyhydro,
Hmm - I have neither Windows or any dmraid sets. I've just done | Code: | | emerge sys-fs/dmraid |
so I can read the man page man dmraid and the README | Code: | | less /usr/share/doc/dmraid-1.0.0_rc8-r1/README.gz |
It lloks like I was wrong about dmraid providing a kernel module.
_________________
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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Kernel & Hardware
