VFS: Cannot open root device "(null)" or unknow-block(8,1)

[Persson121]

Hello. I got a problem with my kernel. The initramfs source is busybox, python and gcc from ubuntu. The busybox have i compiled it self. Python and gcc is from /usr/bin.

I gonna install my kernel on a i586 machine. Old yes. On the xTerm (termial) it stand "root device 8,1).

VFS: Cannot open root device "sda1" or unknow-block(0,0)
Please append a correct "root=" boot option; here are the available partions:
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)Pid: 1, comm: swapper Not tainted 2.6.38.3 #1
Call trace:

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This is my syslinux.cfg

default menu.c32
prompt 0
menu title BOOTLOADER
timeout 100

label unetbootindefault
menu label START
kernel bzImage
append root=/dev/sda1

Do you know what the problem is?

[Lakshmipathi]

I'm not sure about this ..may be try adding "root" at the same line where kernel is mentioned.

something like -

kernel /vmlinuz-2.6.31.9-174.fc12.x86_64 root=/dev/sda1

[handler]

I have the same problem then I'm add root=/dev/ram0 option to my kernel and add /dev/ram0 to my initrd.
Generally, kernel is build with devault root device same as your machine boot device