On Sat, 2019-04-06 at 21:33 +0200, John Paul Adrian Glaubitz wrote:
> On 4/6/19 6:46 PM, John Paul Adrian Glaubitz wrote:
> > My suspicion is that the support multiple consoles in parallel [2] introduced
> > this particular regression. I haven't done any debugging yet though as I'm
> > not sure where to start, I haven't touched the rootskel package before and
> > therefore would be interested in any pointers how to debug this.
>
> The problem seems to be the fact that the sparc64 kernel uses different names
> for /proc/console and the actual console name:
>
> root@landau:~# cat /proc/consoles
> ttyHV0 -W- (EC p ) 4:64
> tty0 -WU (E ) 4:1
> root@landau:~# readlink /sys/dev/char/4:64
> ../../devices/root/f0299a70/f029b788/tty/ttyS0
The inconsistent name seems like a kernel bug...
> root@landau:~#
>
> And this is what used to make it work [1]:
>
> *) # >= 2.6.38
> console_major_minor="$(get-real-console-linux)"
> console_raw="$(readlink "/sys/dev/char/${console_major_minor}")"
> console="${console_raw##*/}"
> ;;
So maybe rootskel should use that again, but applied to each console's
char device number.
(Though directly using the symlinks under /dev/char seems cleaner than
poking in sysfs.)
Ben.
--
Ben Hutchings
This sentence contradicts itself - no actually it doesn't.
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