Re: lug-bg: Boot + Root + Raid + Lilo : Software Raid

[Velin Getov <vgetov@xxxxxx>]

slv69@xxxxxxx wrote:

> Zdraveite!
>
> Opitvam se da pusna software raid, na root diska, no neshto ne se 
> poluchava...
> t.e. sled restartirane 'izpukva'.
>
> Izchetoh opisanoto v
> http://slacksite.com/slackware/raid.html
> http://www.tldp.org/HOWTO/Boot+Root+Raid+LILO.html#toc3
>
> no iavno neshto propuskam.
>
> I taka kakvo stava:
> - raid-a raboti;
> - ako bootna ot CD /naprimer/ posle montiram raid-a i napravia chroot 
> ... niama problem
> Kato trygna da bootvam obache i ...
>
> kernel panic: VFS: Unable to mount root fs on 09:00
>
> :-(
>
> Struva mi se, che problema e che do tozi moment raidstart /dev/md0 ne e 
> startirano, no ne se seshtam kak da go pusna... A moje razbira se i da e 
> syvsem na drugo miasto.
> Ne znam kakvo po-tochno da opisha/pogledna po konfiguraciata, no ako e 
> neobhodima dopylnitelna informacia, niama problem razbira se...
> Blagodaria vi!
> Moje da pishete i direktno do men, ako vyprosa/problema ne e interesen 
> za grupata.
> Спечели 50 бонус точки от Shell SMART - http://www.shell.bg
>
> <http://www.mail.bg/ads/adclick.php?bannerid=834&zoneid=13&source=&ismap=>
Zdravei.
Purvo edin link s HOWTO.
http://unthought.net/Software-RAID.HOWTO/Software-RAID.HOWTO.html

Stom butvash ot CD i raida raboti, znachi problema e ili v /etc/fstab
(malko verioatno...:)) ili v lipsata na md autodetection v samia kernel.
Markiral li si root partition-a kato fd - "Linux RAID auto" ?
Vsichko tova e opisano na gornia sait. eto edna malka izvadka:

-------------------------------------
Autodetection allows the RAID devices to be automatically recognized by 
the kernel at boot-time, right after the ordinary partition detection is 
done.
This requires several things:

   1. You need autodetection support in the kernel. Check this
   2. You must have created the RAID devices using persistent-superblock
   3. The partition-types of the devices used in the RAID must be set 
to 0xFD (use fdisk and set the type to ``fd'')
NOTE: Be sure that your RAID is NOT RUNNING before changing the 
partition types. Use raidstop /dev/md0 to stop the device.
If you set up 1, 2 and 3 from above, autodetection should be set up. Try 
rebooting. When the system comes up, cat'ing /proc/mdstat should tell 
you that your RAID is running.
.
.
.
-------------------------------------------------------------

Uspeh!
Nesto suvsem malko si izpusnal.

--
Velin Getov
JDC, Telecomputer BG

--

Java Development Center, IIS Ltd.
G.M. Dimitrov blvd. bl.60 apt.79
Sofia, BG-1172

email:  vGetov@xxxxxx
phone:  +359(0)2-962-5581
fax:    +359(0)2-720-531
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