Kernel Panic - no init found...

[Miller, Joe]

If you are using a ramdisk, are you running mkinitrd? This process will create an image that gets loaded into memory on bootup.

For example:

mkinitrd /boot/initrd-2.4.x-x.img 2.4.x-x

What you have to do is point grub or lilo to pickup this initrd-2.4.x-x.img on bootup.

title Red Hat Enterprise Linux ES (2.4.x-x)
        root (hd0,0)
        kernel /vmlinuz-2.4.x-x ro root=LABEL=/
        initrd /initrd-2.4.x-x.img

Note: The second parameter to mkinitrd is directly correlated with the name of the directly within you /lib/modules directory. The name has to be the same. In order to accomplish this, ensure that you change the Makefile to reflect the kernel build sub-minor version.

For example:

1) change Makefile EXTRAVERSION param:

VERSION = 2
PATCHLEVEL = 4
SUBLEVEL = 21
EXTRAVERSION =-20smp

2) perform the usual make stuff (ie. make bzImage, make install, make modules_install)

2a) Check that there exists a directory called /lib/modules/2.4.21.20smp (this will be same name as 2nd param)

3) run -> mkinitrd /boot/initrd-2.4.21-20smp.img 2.4.21.20smp

4) make sure you boot loader config reflects the correct ramdisk image:

title Red Hat Enterprise Linux ES (2.4.x-x)
        root (hd0,0)
        kernel /vmlinuz-2.4.21-20smp ro root=LABEL=/
        initrd /initrd-2.4.21-21smp.img

5) reboot and load new kernel



-----Original Message-----
From: redhat-list-bounces at redhat.com
[mailto:redhat-list-bounces at redhat.com]On Behalf Of Bob Metelsky
Sent: Tuesday, December 07, 2004 10:08 AM
To: General Red Hat Linux discussion list
Subject: Kernel Panic - no init found...


Im having a difficult time implementing a new kernel

I do
bzip2 -dc linux-2.6.0.tar.bz2 | tar xvf -
make menuconfig
make bzImage
make modules
make modules_install
make install

Researching my error I found this
http://www.redhat.com/archives/fedora-list/2004-November/msg03120.html

"
2. Navigate through the menus: "Device Drivers -> Block Devices"
3. Enable "RAM disk support", and "Initial RAM disk (initrd) support"
4. Enable any other kernel stuff you want/need.
5. Run "make", then (as root) "make modules_install", and "make install"

The "make install" will create your initrd and add the appropriate 
stanza in your /boot/grub/grub.conf.
make install
"
I do not run the original "make" but rather make bzImage

This does exactly that
the new kernel and image are copied to /boot
grub is "automagically"  edited
 but... I still end up with the "kernel panic  no init found - Try 
passing init= to kernel"

Any Ideas what i may be doing wrong?

Thanks
Bob

-- 
"Oracle error messages being what they are, do not
highlight the correct cause of fault, but will identify
some other error located close to where the real fault lies."

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