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Re: ⎠╵⎝

Hi Thorsten,

for people wanting to test this on real-metal Ataris, I’ve made
https://www.freewrt.org/~tg/f/vmlinuz-3.8.0-rc3+m68k-queue+atari-84299-g3f4758a
cross-compiled from Geert’s m68k-queue as of today,
• because the Debian kernel follows upstream and thus lacks drivers
  for EtherNAT and EtherNEC,
Thanks - I'll have an update for Geert's m68k queue shortly that adds functional USB support on EtherNAT (kudos to David Galvez for working out the final kinks in the code). 
• stripped down to fit on a floppy (gzip’d),
• stripped down to possibly boot on a TT with 4 MiB ST-RAM,

I'd be amazed to see that work!

gemini8 (Bcc’d) from #atari-home (OFTC) will try to install this on an
Atari TT like this:
• prepare HDD with three partitions: TOS, LNX, LNX (sizes would be,
  roughly, a couple of Megs, then say a gig – this will be our root
  filesystem on Linux later – then whatever MiNT needs – this will
  be our swapspace on Linux later)
Would not hurt to leave the MiNT partition in place and add an extra swap one. 
• install the minimal TOS with ataboot.ttp / bootstra.ttp on the first
  ‣ e.g. http://archive.debian.org/debian/dists/sarge/main/installer-m68k/current/images/tools/atari/
  ‣ note that ct060 systems need a different one
• install MiNT on the third one (ext2fs, incidentally)
• from MiNT, put an ext2fs on the second one, which will be our / on
  Linux, and un-tar https://www.freewrt.org/~tg/f/20121227/m68k-base.tgz
  on it (DO NOT forget the ‘p’ option, like “tar xzpf /path/to/foo.tgz”)
• from MiNT, edit /etc/fstab on the second partition to refer to the
  correct path for the root filesystem (which is the second partition),
  e.g. via UUID= (if MiNT can show that, e.g. with tune2fs -l) or by
  guessing /dev/hda2 could be right… or via label
On a TT, there's only SCSI disks so that will be /dev/sda2. No guessing as to the partition number required. 
• from MiNT, edit /etc/hostname and /etc/hosts
• from MiNT or TOS, edit the bootstrap arguments to read *at least*
  root=/dev/hda2 devtmpfs.mount=1
  (here, too, guess the correct partition ☺ as we don’t use an initrd
  on Debian/m68k, UUID/LABEL will *not* work there, but don’t worry,
  you’ve got quite some chances)
• boot via TOS (partition 1) into Linux (partition 2)
• use atari-fdisk to change the type of partition 3 into SWP
• swapon it and add it to /etc/fstab
• configure the network, apt-get update && apt-get --purge dist-upgrade
• win! (note, we haven’t yet actually done this yet)

Later TO-DO: investigate whether the HDD can be made “bootable” for
LNX, i.e. skip the TOS step.
The ROM does not have any drivers for hard drives, so you'd have to replicate what current hard disk drivers do in order to get just a basic boot loader. On SCSI bases systems like the TT, that means quite a bit of protocol. 
Booting a kernel from floppy should work however.

The kernel image comes with ext2, ext4 (does not use it for ext2/ext3,
so ext2 will not get accidentally upgraded in case someone needs to
access it from MiNT again, until you upgrade it to ext4 manually), NFSv3
client, msdos/vfat, iso9660 filesystems, IDE and SCSI HDD and CD-ROM
(but not sg) support, and no dmraid or LVM, nor any modules.

Making it was a thing of:
• git clone git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k.git
  (then go shopping)
• cd linux-m68k; git checkout m68k-queue; git gc --aggressive --prune=now
  (then drin a coffee)
• scp linux-m68k:/boot/config-3.2.0-4-atari .config
• make ARCH=m68k menuconfig
  (takes a̲n̲ ̲h̲o̲u̲r̲, or so, for looking through all of it; do make sure to
  enable the Atari ISA ROM port adapter, EtherNAT and EtherNEC support,
  and some other platform devices)
Maybe that should be enabled by default in the m68k-queue's defconfig. Maybe a atari-small-defconfig should be added, based on your optimized one. 

Cheers,

 Michael
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