Kernal 2.6 and booting off RAID1

[dslama]

ok, I'm running a stock RedHat 9 system. I found multiple documents on how to upgrade it to 2.6 I followed them very closely. I am having a Kernel Panic when it tries to boot. I have (2) 1.2 gig drives mirrored as the boot partition /dev/md0. I have the swap partition ad /dev/md1 I then have a large data partition on 2 other drives as /dev/md2. Kernel sees the md drives and creates the raids. I can see on the screen that it created md0. it also says that Personality 3 is not loaded. then it stops the raid? then it unbinds to the raid. then it says autorun done.


Here's some of the output:
mount: error 19 mounting ext3
pivotroot: pivot_root (/sysroot,/sysroot/initrd) failed: 2
umount /initrd/proc failed: 2
freeint unused kernel memory 167k freed
kernel panic: no init found. try passing init= option ot the kernel

If I comment out the initrd file in grub.conf I get:
the md stuff as usual
right after that I get:
EXT2-fs unable to read superblock
isofs_fill_super: bread failed, dev=md0, iso_blocknum=16, block=32
kernel panic: unable to mount foot fs on md0

here's my grub.conf:
default=0
timeout=10
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
title Red Hat Linux (2.4.20-8)
root (hd0,0)
kernel /boot/vmlinuz-2.4.20-8 ro root=/dev/md0
initrd /boot/initrd-2.4.20-8.img

title Red Hat Linux (2.6.4)
root (hd0,0)
kernel /boot/vmlinuz-2.6.4 ro root=/dev/md0=/
initrd /boot/initrd-2.6.4.img
title Red Hat Linux (2.6.5)
root (hd0,0)
kernel /boot/vmlinuz-2.6.5 ro root=/dev/md0=/
initrd /boot/initrd-2.6.5.img
root@iowa:/www/derekslama.com/horde/turba/config>


Any help or anything pointing me in a direction would be great! Thanks in advance.

Derek

[Giro]

What partition type is /boot ? It cannot be FD(RaidAuto-detect) you cannot boot from a raided partition it has to be 83(Linux) and flaged bootable.

[dslama]

hmmm, that's odd. the /boot folder is all on the one main / partition. I don't have a seperate partition for it. I was able to do this just fine on Red Hat 9. Is this not possible with kernel 2.6? If so I may have to redo my whole server to create a seperate partition for /boot? How big should it be? is there a way to resize my drives to make room for it?

Derek

[dslama]

I had to make my initrd on my own for some reason. the one that make install tried to do fails with this error:

root@iowa:/data/backup/server/kernel/linux-2.6.5>make install
make[1]: `arch/i386/kernel/asm-offsets.s' is up to date.
CHK include/linux/compile.h
Kernel: arch/i386/boot/bzImage is ready
sh /data/backup/server/kernel/linux-2.6.5/arch/i386/boot/install.sh 2.6.5 arch/i386/boot/bzImage System.map ""
No module raid0 found for kernel 2.6.5
mkinitrd failed
make[1]: *** [install] Error 1
make: *** [install] Error 2

I had to make my own initrd by running:

mkinitrd --omit-raid-modules /boot/initrd-2.6.5 2.6.5

So maybe that has something to do with it?

Derek

[squizzar]

Sorry if i'm stating something really obvious here - I'm pretty new to linux

When I tried building a 2.6 kernel I remember reading something about making sure the ex3 modules are built into the kernel (not as modules) because of the /boot partition being ext3 (this might be redhat only)

I only mention it because the error you have looks like the one mentioned in the guide with the above as the solution

[Giro]

Yeh you should build all fs and ide stuff directly into the kernel.