Re: Fwd: linux-image-2.6-17-mac tries

["Brian Morris" <cymraegish@gmail.com>]

On 9/29/06, Michael Schmitz <schmitz@mail.biophys.uni-duesseldorf.de> wrote:
> > > You can try to disable disconnecting - mac5380=1 or  mac5380=-1,1 might
> > > help.
> >
> > i did try this, i found it was behaving rather unpredictably, once i
> > got an error
> > 54 not understood,
>
> ??? The above should go into the kernel options line of the booter, in
> case I didn't make this clear before. "54 not understood" is nothing I
> would expect the kernel to issue.
i interpreted this exactly that way. the message comes from the scsci
controller. the controller is recieving commanf code 54 which besides
being an optional command (not part of the standard list) is not even
appropriate -- - 54 is for a cd/dvd-r drive not a hd.

my impression thence is that maybe the kernel is not even using the
correct driver, at all. since it does not follow the current standard of
using modules, there is not easy way to check, load, unload drivers
as there would be with a sane initrd. that is to me one of the goals
of etch, why there are two replacement candidates for mkinitrd and
a new format besides.

with command codes at controller level scrambled , anyway no
wonder that directories get corrupted.

> > then repeating again and with the other settings i got only a hang.
> > seems to require maybe a cold start to reset the bus ?
>
> The bus is reset on booting Linux anyway.
sorry. i guess it is the controller, not the bus.

> > anyway i also copied my install to a scsi2 disk, strange things happened.
> > (note i did this with disks hooked up to powermacs with parted which is
> > my regular back routine i use routinely there and boot from copies even on
> > different (same arch) machines)
> >
> > i made a little mac partition at the front of the disk where i thought i might
> > need if i wanted to try booting emile on hard drive. well naming it "68k"
> > was apparently not a good idea: i was able to recover the disk after a very
> > bad crash, finally, but somehow it got renamed to 78k. I am not kidding,
> > all the rest of files i had were ok (after major surgery on driver and
> > directory).
>
> '68k' might be a reserved partition name in MacOS or the MacOS ROM. Just a
> guess.
>
> > also i would not trust to format anymore with old mac os 7 formatter. i had
> > been using 7.6 with this machine (the highest it goes) which is compatible
> > with mac drive setup 1.4 from os 8.1. i cannot boot with sarge even using
>
> HD SC Setup and the like are only required to place driver partitions on
> the disk. After that's done, you can partition using Linux tools (I
> haven't used parted but I'd hope they leave the driver partitions and the
> general ordering of entries untouched).
>
> > the old hd sc setup formatted drive as an internal drive, perhaps with external,
> > but i am going to reformat i think. my powerbook drive i had been booting
> > from before had been formatted with the 1.7 drive setup which is not recognized
> > by this old computer in mac os (but was ok to boot linux from). is that
> > incomprehensible ? to summarize: my impression one must use drive
> > setup 1.4 (should work with os7, can download it if don't have os8)
>
> Drive Setup 1.7 perhaps does not install 68k drivers anymore.
only for '040
> > anyway i should probably replace the 17 with the 18 kernel now/soon.
>
> Any improvements on the ADB front there?

my impression also until i hear otherwise , there is NO mac II / 68030
support in etch/2.6 kernels. at least not until quadra/040 has been good
for a while, supporting more machines.


>         Michael