On Sat, May 05, 2001 at 05:49:41PM +0200, franck routier wrote: > Ok, I found the problem by myself. > > I have been quite stupid and copied zImage from arch/powerpc... to > /boot/vmlinux, instead of copying vmlinux itself... > > I was able to boot again on potato cd by booting directly in of (no after > yaboot failed) then updated yaboot.conf to my old kernel, ybin, and it > worked.
this is a prime example of why you should take some old school lilo
practice and use it:
in /etc/yaboot.conf:
[global crap snipped]
default=linux
image=/boot/vmlinux
label=linux
root=/dev/hda3
read-only
image=/boot/vmlinux.old
label=linux.old
root=/dev/hda3
read-only
then in /boot you have two symlinks, vmlinux and vmlinux.old. when
you upgrade your kernel and install it at /boot/vmlinux-2.2.19 you mv
your current /boot/vmlinux -> /boot/vmlinux-2.2.18 symlink to
vmlinux.old, and create a new vmlinux symlink pointing to
/boot/vmlinux-2.2.19.
this way if you screwed up your kernel config and your new ones fails
to boot you just enter `linux.old' at the boot: prompt and get your
old kernel. this is always critical with lilo since it can only boot
images it knew about the last time you ran /sbin/lilo. yaboot on the
other hand (with versions later then 0.9) boot arbitary images not
defined in /etc/yaboot.conf at all:
boot: hd:3,/boot/vmlinux.good root=/dev/hda3 ro
which will boot vmlinux.good from /dev/hda3 using /dev/hda3 as root.
kernel-package will also take care of rotating symlinks for you.
another advantage you using symlinks is you don't have to rerun ybin
when you change kernels, just repoint the symlink, /etc/yaboot.conf
doesn't have to change.
> I can now run X !!
> I only miss the trick to emulate 3 button on my single button mac
> trackpad...
sysctl -a | grep mac_hid
man sysctl.conf
--
Ethan Benson
http://www.alaska.net/~erbenson/
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