Re: Can't boot 2.6.20, get /dev/root error.

Mikkel L. Ellertson wrote:

clemens@xxxxxxx wrote:

OK, this has got to be something I missed, but I dont see any mention
in the Readme nor the /Documentation file that come with 2.6.20

The build of 2.6.20 goes without any problems (the only config change I
made was to change from 586 -> Pentium4), but when  I try to boot, I get
a few lines, and then the message

    Unable to access resume device (/dev/sda5)
    mount: could not find filesystem '/dev/root'
    < 4 more lines with setuproot and switchroot >

and then

    Kernel panic - not syncing: Attempting to kill init!

So, I dont understand, - /dev/sda5 (mentioned above) is my swap device,
and I have no /dev/root, should I? Havent needed it before.

What do I need to change/add to get this to boot?

Did you create a new initrd for this kernel? It looks like you are
missing the modules to access the drive. The reference to your swap
partition is because the system is trying to check if you did a
suspend to disk. If the swap partition has the flags that show you
suspended to disk, it will try and resume from disk instead of doing
a fresh boot. The /dev/root is trying to use partition label to
mount the root partition. If the kernel could access the hard drive,
it would find the label.

If you are going to build your own kernel, you probably should build
in the drivers to access your hard drive, and your root file system.
If you are not going to do that, you should get to know how to use
the mkinitrd command.

Mikkel

Just do,

make menuconfig (or your favorite version)
make
make modules_install
make install

No need to run mkinitrd, it makes the initrd for you.

Regards,

John