freebsd 6.4 can't load kernel after upgrade

Manolis Kiagias sonicy at
Sat Oct 31 05:04:58 UTC 2009

oscar Seo wrote:
> I'm a beginner in freebsd.
> my machine consists of freebsd-6.4 + i386 bootstrap loader,+ windowmaker
> after upgrade freebsd-6.4 using sysinstall then reboot the system,
> I got an error message as follows
> +++++++++++++++++++++++++++++++++++++++
> Loading /boot/defaults/loader.conf
> Unable to load a kernel!
> /
> can't load 'kernel'
> Type '?' for a list of commands, 'help' for more detailed help.
> OK _
> +++++++++++++++++++++++++++++++++++++++
> so I decided to reinstall freebsd-6.4 but I can't boot and re-install
> freebsd using CD-rom.
> what shall I do boot my system using installed freebsd or live-CD ?
> Thanks...
You could try loading your old kernel. When you build a new kernel, your
old kernel is preserved under /boot/kernel.old

Type these commands in the loader prompt

unload (probably not needed here)
load kernel.old

See section for more examples and details

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