I upgraded via build/installworld from 6.1-PRERELEASE as of 27 Mars
to 6.1-STABLE 5 June, and encounterd 2 problems.
a) loader and kernel has some problem that lead to instant reboot upon
loading the kernel.
the problem was as follows:
1) booting the new kernel with the old loader was fine.
I did buildkernel and installkernel and rebooted in single user mode.
It had no problems.
2) loading the new kernel with the new loader made the machine reboot.
After step (1), I did installworld and rebooted.
It resulted in rebooting just after loader menu.
I could escape to loader prompt and found that doing
> unload
> load kernel
makes the machine reboot.
3) loading the old kernel with the new loader can boot in single
user mode.
> unload
> set module_path=/boot/kernel.old
> load kernel
(and some other necessary modules)
> boot -s
was fine (though, exiting in multi-user mode had problem around
mountd and panic'ed with the new userland).
I copied the old /boot/loader.old to /boot/loader as a workaround.
I have
CFLAGS= -O2 -pipe
COPTFLAGS= -O2 -pipe
and no CPUTYPE setting in /etc/make.conf, so I wonder what caused
the problem.
b) pre-loading ng_ether.ko module and doing ifconfig name may
have problem with ppp.
I put the following in /etc/rc.conf
ifconfig_sis0_name="net0"
and changed device setting in /etc/ppp/ppp.conf as follows:
set device PPPoE:net0
This did not work and had the following error message in /var/log/messages:
ppp[258]: tun0: Warning: net0: Cannot send a netgraph
message: No such file or directory
changing device setting to
set device PPPoE:sis0
or doing
ngctl name sis0: net0
could make ppp work.
The problem may be caused by loading ng_ether.ko in loader.conf
(I do not remember why I did this, though).
If I did not do that, ng_ether module was loaded when ppp was invoked
after interface rename and might have no problem.
I did not verify this yet, though.
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