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Re: IIfx kernel panic

On Fri, 26 Mar 2021, Casey Offord wrote:

> Hello,
> I've been trying to get my IIfx booting with 68k Linux. I'm using a 
> ramdisk (initrd-serconsole from the mac.linux-m68k FTP), kernel file 
> (vmlinux-4.14.221-mac-backport+), and Penguin 19.  I'm getting a kernel 
> panic when it tries to mount a file system on the ramdisk. 

I tried this in QEMU. Launching /sbin/init fails and the kernel panics 
with "Attempted to kill init".

When I examined the initrd-serconsole.gz file, I see that /dev is empty. 
So I used "root=/dev/ram init=/bin/sh" and I got a prompt:

bash# mount -n -t devtmpfs none /dev
bash# exec /sbin/init
Remounting root file system read-write
EXT4-fs (ram0): warning: checktime reached, running e2fsck is recommended
EXT4-fs warning (device ram0): ext4_update_dynamic_rev:796: updating to 
rev 1 because of new feature flag, running e2fsck is recommended
EXT4-fs (ram0): re-mounted. Opts: 
Starting update
Mounting filesystems:
warning: process `update' used the obsolete bdflush system call
Fix your initscripts?
/proc on /proc type proc (rw)
init: cannot open inittab
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100

I didn't dig any deeper. That initrd is 20 years old, and may or may not 
work with 20 year old kernels. Who knows?

> I'm going to guess I don't have the right initrd file to run with this 
> kernel.

The kernel seems to be fine. It works with a busybox initrd I have.

> Can anyone point me to the correct initrd? Or, since I have an A/UX 
> partition and swap prepared for this install, can I do this without an 
> initrd?

If you want to install Debian, you should first try the kernel and initrd 
from the Debian installer ISO. You can find it here, 

> Thanks,
> Casey

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