root file system support in 2.6.15

hubabuba · 03-03-2006, 01:57 PM

Hello!

Last time I recompiled kernel-2.6.15, I forgot to include the support for the root filesystem.
The only thing is that there is no such option as "root file system support". I have gone through all the options that I think may enable the root filesystem support, but I may have missed something out. Can anyone suggest which option may that be? Or, could it be something to do with the IDE support?

Thanks

mdarby · 03-03-2006, 02:27 PM

By "Root Filesystem Support" we mean to compile in support for whatever filesystem your root partition uses.

If you post the your /etc/fstab I can tell you what you need...

hubabuba · 03-03-2006, 03:08 PM

Here is my /etc/fstab:

Quote:

/dev/hda2 swap swap defaults 0 0
/dev/hda3 / ext2 defaults 1 1
/dev/hda2 /boot ext2 defaults 1 2
/dev/cdrom /mnt/cdrom auto noauto, owner, ro 0 0
/dev/fd0 /mnt/floppy auto noauto, owner 0 0
devpts /dev/pts devpts gid=5, mode=620 0 0
proc /proc proc defaults 0 0

I have just recompiled my kernel again using Live cd and chroot command,
but it still comes back with the same message:

Quote:

VFS: Cannot open root device "303" or unknown-block(3,3)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount fs on unknown-block(3,3)

IceChant · 03-03-2006, 03:41 PM

Could be Initrd missing ? (just throwing idea).

gilead · 03-03-2006, 04:03 PM

You're using ext2 as your file system. In your .config file when configuring your kernel, did you select CONFIG_EXT2_FS=y - if it's CONFIG_EXT2_FS=m you'll need the initrd that IceChant mentions.

hubabuba · 03-03-2006, 05:29 PM

I always try to compile kernel with an inbuilt support rather than modules.
In my .configfile I have CONFIG_EXT2_FS=y

gilead · 03-03-2006, 06:31 PM

It may be your IDE support then. I'm assuming that you're using IDE drives because of the hda stuff in /etc/fstab. What do you have for the following settings?

Code:

CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y

hubabuba · 03-04-2006, 07:14 AM

cheers mate, CONFIG_BLK_DEV_IDEDISK option was not set. I've recompiled the kernel with this option set to 'y' and it worked!

gilead · 03-04-2006, 07:20 AM

Glad to hear it

And thanks for not commenting on what South Africa did to Australia in the 2nd one day international