Issue after kernel compilation

Question

I've compiled my own kernel based on the arch linux default kernel its configuration file. I simply executed  make clean &&  make dep && make modules && make bzImage && make modules_install. Afther the depmod I've built a ramdisk with mkinitcpio.Unfortunately I'm not able to boot into my new self-compiled kernel. Here you can see my /boot/grub/menu.lst:
# (0) Arch Linux Self-compiled kernel
title Linux 2.6.30.5 [/boot/vmlinuz-2.6.30.5]
root (hd0,0)
kernel /vmlinuz-2.6.30.5 root=/dev/sda3 ro
initrd /kerneltest.img
# (0) Arch Linux
title Arch Linux [/boot/vmlinuz26]
root (hd0,0)
kernel /vmlinuz26 root=/dev/sda3 ro
initrd /kernel26.img
While booting into the new kernel the next error message about the root device shows up. I've noticed I'm able to boot the default arch kernel that's using the same root device (=/dev/sda3) on this desktop.
Waiting 10 seconds for device /dev/sda3
Root device /dev/sda3 doesnt exist, attempting to create it
Error: Failed to parse block device ids for /dev/sda3
Error: Unable to detect or create root devide /dev/sda3
If you would like to see my partitions:
/dev/sda1 /boot ext2 defaults 0 1
/dev/sda2 swap swap defaults 0 0
/dev/sda3 / ext4 defaults 0 1
/dev/sda4 /home ext4 defaults 0 1
Who can help me with this issue? Thanks.
Last edited by Nando (2009-09-05 15:40:04)

Answer 1

I've compiled a new kernel but the same issue remains. I executed some important changes in my kernel config: CONFIG_SCSI=y, CONFIG_ATA=y, CONFIG_EXT4_FS=y  (instead of being modular as in the default arch linux kernel). I also inserted the "aufs" lines, but they were gone in my .config file after the kernel compilation.(I think it was after make dep)
A "diff" of both .config reveals that aufs is almost the only difference. (I've already mentioned the stuff that used to be modular and is now built-in.)
3 root@archlinux $ diff /usr/src/linux-2.6.30.5/.config /usr/src/linux-2.6.30-ARCH/.config
3,4c3,4
< # Linux kernel version: 2.6.30.5
< # Mon Sep 7 10:35:44 2009
> # Linux kernel version: 2.6.30
> # Mon Aug 17 16:49:59 2009
1269c1269
< CONFIG_SCSI=y
> CONFIG_SCSI=m
1418c1418
< CONFIG_ATA=y
> CONFIG_ATA=m
3905c3905
< CONFIG_EXT4_FS=y
> CONFIG_EXT4_FS=m
3912c3912
< CONFIG_JBD2=y
> CONFIG_JBD2=m
3914c3914
< CONFIG_FS_MBCACHE=y
> CONFIG_FS_MBCACHE=m
4041a4042,4052
> CONFIG_AUFS_FS=m
> CONFIG_AUFS_BRANCH_MAX_127=y
> # CONFIG_AUFS_BRANCH_MAX_511 is not set
> # CONFIG_AUFS_BRANCH_MAX_1023 is not set
> # CONFIG_AUFS_BRANCH_MAX_32767 is not set
> CONFIG_AUFS_HINOTIFY=y
> CONFIG_AUFS_EXPORT=y
> CONFIG_AUFS_SHWH=y
> CONFIG_AUFS_BR_RAMFS=y
> # CONFIG_AUFS_DEBUG is not set
> CONFIG_AUFS_BDEV_LOOP=y
4427c4438
< CONFIG_CRC16=y
> CONFIG_CRC16=m
I've built an own ramdisk again with mkinitcpio, but I'm using the default kernel26.img
/boot/grub/menu.lst:
# (0) Arch Linux
title Arch Linux [/boot/vmlinuz26]
root (hd0,0)
kernel /vmlinuz26 root=/dev/sda3 ro
initrd /kernel26.img
# (0) Arch Linux
title Arch Linux [/boot/vmlinuz2-6-30.5]
root (hd0,0)
kernel /vmlinuz-2.6.30.5-nando root=/dev/sda3 ro
initrd /kernel26.img
Last edited by Nando (2009-09-07 17:38:21)