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LittleKing
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Joined: 04 Jul 2002
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Location: TN, USA

PostPosted: Wed Dec 08, 2004 3:30 am    Post subject: Software RAID not working Reply with quote

I"m trying to follow this HOW-TO about setting up Gentoo with software RAID. It's probably a simple problem, but I just can't seem to figure it out.

I'm installing from the Gentoo 2004.3-r1 minimal release. The hardware is a BE-6 mobo, PIII 550 Mhz, and both drives are on seperate channels. After I started the system, since all the networking stuff worked from boot the next thing seems to be "Set up partitions". I did the following command
Code:
#modprobe md
, fdisked both drives the same, the partition ID's are fd (except for the SWAP partition) and created my /etc/raidtab file. Now when I try to do
Code:
#mkraid /dev/md*
step, I'm getting the following error message
Code:
cannot determine md version: no MD device file in /dev


I'm not sure what I'm not doing. Any help would be appreicated.

Also another question about using RAID, do I need to set my /boot partition with the boot flag? It's not mentioned in the HOW-TO so I'm guessing not, but want to be sure.

THanks,
LK
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zecora
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Joined: 17 Aug 2004
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Location: Minneapolis, MN

PostPosted: Wed Dec 08, 2004 3:33 am    Post subject: Reply with quote

The drives are on hda and hdc or hdb and hdd?
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zecora
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Joined: 17 Aug 2004
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PostPosted: Wed Dec 08, 2004 3:34 am    Post subject: Reply with quote

post your /etc/fstab

what raid lvl are you going for?
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LittleKing
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PostPosted: Wed Dec 08, 2004 2:58 pm    Post subject: Reply with quote

Since the BE-6 chipset had only IDE-33, they added at HighPoint controller that added two IDE-66 connectors. So my setup is as follows:
Code:

IDE-33 Connectors
IDE1 - CD-RW
IDE2 - Empty
IDE3 - CD-ROM
IDE4 - Empty

IDE-66 Connectors
IDE5 - WD 80 Gig (hde)
IDE6 - empty
IDE7 - WD 80 Gig (hdg)
IDE8 - empty

Both HD are partitioned as follows:
Code:

Partition  | Size | Type
---------------------------------
hde1 /boot | 100M | fd - RAID Autodetect
SWAP       | 512M | linux swap
hde3 /home | 50 G | fd - RAID Autodetect
hde5 /var  | 10 G | fd - RAID Autodetect
hde6 /     | 14 G | fd - RAID Autodetect


Partition  | Size | Type
---------------------------------
hdg1 /boot | 100M | fd - RAID Autodetect
SWAP       | 512M | linux swap
hdg3 /home | 50 G | fd - RAID Autodetect
hdg5 /var  | 10 G | fd - RAID Autodetect
hdg6 /     | 14 G | fd - RAID Autodetect

My raidtab file is as follows:
Code:

# /boot (RAID 1)
raiddev                 /dev/md0
raid-level              1
nr-raid-disks           2
chunk-size              32
persistent-superblock   1
device                  /dev/hde1
raid-disk               0
device                  /dev/hdg1
raid-disk               1

# /home (RAID 1)
raiddev                 /dev/md1
raid-level              1
nr-raid-disks           2
chunk-size              32
persistent-superblock   1
device                  /dev/hde3
raid-disk               0
device                  /dev/hdg3
raid-disk               1

# /var (RAID 1)
raiddev                 /dev/md2
raid-level              1
nr-raid-disks           2
chunk-size              32
persistent-superblock   1
device                  /dev/hde5
raid-disk               0
device                  /dev/hdg5
raid-disk               1

# / (RAID 1)
raiddev                 /dev/md3
raid-level              1
nr-raid-disks           2
chunk-size              32
persistent-superblock   1
device                  /dev/hde6
raid-disk               0
device                  /dev/hdg6
raid-disk               1


LK
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NismoC32
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Joined: 07 Apr 2003
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PostPosted: Wed Dec 08, 2004 11:44 pm    Post subject: Reply with quote

Looks like modprobe md is broken, it does not create any /dev/md* devices :-(

Well I'm fresh out og Ideas looks like all 2004.3 LiveCD's are brooken in different plases. I have tried for one week now on installing Gentoo on my new AMD64 PC.

I have tried AMD64 version of LiveCD from Stage 1 to Stage 3 none worked. I then tried the X86 LiveCD (2004.3-r1) and diden't manage to start raid :-(
I guess I have to go for Fedora :-(

2004.2 dosent support my raid card or network card.

I also tried AMD64 LiveCD 2004.3-r1 and nothing worked there, no fb, no keymap, no links2.... nothing ??????

I guess I'l have try again when LiveCD 2005.0 releases, and hopefully the AMD64 version is bugg free.
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LittleKing
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PostPosted: Thu Dec 09, 2004 12:05 am    Post subject: Reply with quote

NismoC32 wrote:
Looks like modprobe md is broken, it does not create any /dev/md* devices :-(

Well I'm fresh out og Ideas looks like all 2004.3 LiveCD's are brooken in different plases.


Does everyone agree that it's just broken. Should I try to install from 2004.2 or maybe ealier?

LK
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LittleKing
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PostPosted: Thu Dec 09, 2004 7:10 pm    Post subject: Reply with quote

Well, I tried installing from my old 2004.1 CD I had burned in preperation to install Gentoo back when 2004.1 came out, but didn't get around to it. Well after I did "modprobe md" I checked '/dev' for md devices and sure enough they where there. The rest of the install when smootly until I had to 'emerge --sync' which then couldn't connect. I had to got to bed so I'll try again today when I get home from work.

So does this mean that 2004.3 is broken?


Another question I have would be, can I install from the 2004.1 CD and still use the 2004.3 Stage1 to install the base system? I would think it would work, but are there known issues with doing this?

Thanks,
LK
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Skraut
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PostPosted: Thu Dec 09, 2004 8:39 pm    Post subject: Reply with quote

Dang, I'm stuck in the same spot. Anyone know a good way around?
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Skraut
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PostPosted: Fri Dec 10, 2004 1:13 pm    Post subject: Reply with quote

2004.2 worked for me to get everything booted, then downloaded the stage 1 2004.3 tarball
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pilla
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PostPosted: Wed Jul 20, 2005 2:12 pm    Post subject: Reply with quote

https://forums.gentoo.org/viewtopic-p-2587699.html
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