Custom kernel doesnt boot

[shivanth]

I've compiled a custim kernel and when i try booting it ,it says
" udev:waiting for device /dev/sda to appear "

and then after 10 seconds it drops into ramfs shell .

Anybody had this issue before ? SUGGESTIONS WILL BE VALUABLE

[Lakshmipathi]

What's exactly command line argument for kernel ?May be try passing root=<your_root_device> from grub

[shivanth]

I have that in the kernel parameters . Isn't this something related with the kernel i compiled . The distro kernel just works fine

[Lakshmipathi]

Post the grub.conf contents here and also how you configured the kernel? used defconfig or edited by hand or menuconfig method ?

[shivanth]

I did a menu config .

Here's my grub.lst

timeout   5
default   0
color light-blue/black light-cyan/blue

# boot sections follow
# each is implicitly numbered from 0 in the order of appearance below
#
# TIP: If you want a 1024x768 framebuffer, add "vga=773" to your kernel line.
#
#-*

# (0) Arch Linux
title  Arch Linux
root   (hd0,0)
kernel /boot/vmlinuz26 root=/dev/disk/by-uuid/cbf7976e-d756-48f0-a105-df3e9a935c79 ro
initrd /boot/kernel26.img

# (1) Arch Linux
title  Arch Linux Fallback
root   (hd0,0)
kernel /boot/vmlinuz26 root=/dev/disk/by-uuid/cbf7976e-d756-48f0-a105-df3e9a935c79 ro
initrd /boot/kernel26-fallback.img

# (2) My Linux
title Test Linuxs
root (hd0,0)
kernel /boot/vmlinuz261 root=/dev/disk/by-uuid/cbf7976e-d756-48f0-a105-df3e9a935c79 ro
initrd /boot/kernel261.img

[Lakshmipathi]

I"m not wrong .. your new kernel doesn't recognize the uuid part.

kernel /boot/vmlinuz261

root=/dev/disk/by-uuid/cbf7976e-d756-48f0-a105-df3e9a935c79

ro
initrd /boot/kernel261.img

So I would suggest you pass the root file system device on it directly. If you root device is sda1 then use

kernel /boot/vmlinuz261 root=/dev/sda1 ro
initrd /boot/kernel261.img

[shivanth]

I did try that as well , Nothing changes . It still cannot find the disk

[Lakshmipathi]

Are you sure sda1 is your root partition? Above was just an example. Check with fdisk for correct root fs. and you didn't answer my previous question

how you configured the kernel? used defconfig or edited by hand or menuconfig method ?

[shivanth]

Well sda1 is my root partition for sure . No doubt . Got the distro running on sda1 as root

fdisk says nothing different either

Did i miss a question ?

[Lakshmipathi]

Did i miss a question ?

Yes.Please read my above post again.