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Re: Updated installer images



Frank,

On Thu, Sep 21, 2017 at 1:52 PM, Frank Scheiner <frank.scheiner@web.de> wrote:
> On 09/21/2017 11:26 AM, John Paul Adrian Glaubitz wrote:
>>
>> [...]
>>>
>>> I’ll be happy to test Grub on my PowerMac7,3 G5 machine, but I’ll need
>>> instructions for doing so.  I’ve always just used yaboot, but Grub would be
>>> a nice addition…
>>
>>
>> There is documentation here, for example [1]. GRUB is available
>> for installation on both powerpc and ppc64. I haven't tested it
>> myself yet, but I would be very interested in seeing the results.
>>
>> Adrian
>>
>>> [1] http://cynic.cc/blog/posts/running_grub2_on_powerpc_macs/
>>
>>
>
> Thanks for the instructions which were also helpful to me :-). After some
> fiddling I got it to work on the earlier mentioned Power Macintosh G5
> (11,2).
>
> I followed the instructions on [1] but also needed to change a few things
> here and there - maybe also because I'm not that familiar with Grub2 yet
> :-).
>
> I booted grub from OpenFirmware with the command given on [1]:
>
> ```
> 0 > boot hd:2,grub.img
> ```
>
> `hd:2` is the HFS partition where yaboot and grub are located. I don't know
> if this can also be accomplied with the `mac-boot` command, which can be
> used to boot with yaboot.
>
> I also created a small howto about the setup process that worked for me:
>
> # GRUB-IEEE1275 setup in Power Macintosh G5 (11,2) #
>
> ## Install grub-ieee1275 ##
>
> ```
> # apt install grub-ieee1275
> ```
>
> ## Full file list for grub image ##
>
> Placed in `~/grub/`, copied from `/usr/lib/grub/powerpc-ieee1275`:
>
> ```
> archelp.mod
> bitmap.mod
> bitmap_scale.mod
> blocklist.mod
> boot.mod
> bufio.mod
> cat.mod
> cmp.mod
> configfile.mod
> cpio.mod
> crypto.mod
> datehook.mod
> date.mod
> datetime.mod
> disk.mod
> echo.mod
> elf.mod
> ext2.mod
> fat.mod
> font.mod
> fshelp.mod
> gettext.mod
> gfxmenu.mod
> gfxterm.mod
> gzio.mod
> halt.mod
> help.mod
> hexdump.mod
> hfs.mod
> hfsplus.mod
> ieee1275_fb.mod
> kernel.img
> linux.mod
> loadenv.mod
> loopback.mod
> lsmmap.mod
> ls.mod
> memdisk.mod
> memrw.mod
> minicmd.mod
> moddep.lst
> msdospart.mod
> normal.mod
> part_apple.mod
> part_msdos.mod
> parttool.mod
> probe.mod
> read.mod
> reboot.mod
> regexp.mod
> relocator.mod
> scsi.mod
> search_fs_file.mod
> search_fs_uuid.mod
> search_label.mod
> search.mod
> setjmp.mod
> sleep.mod
> suspend.mod
> terminal.mod
> test.mod
> trig.mod
> true.mod
> video_colors.mod
> video_fb.mod
> videoinfo.mod
> video.mod
> ```
>
> In addition to the list given on [1], the following files needed to be added
> (already included in the list above!):
> ```
> moddep.lst
> archelp.mod
> video_colors.mod
> disk.mod
> kernel.img
> ```
>
> ## Partition table ##
>
> ```
> ~# mac-fdisk -l
> /dev/sda
>         #                    type name                length   base ( size )
> system
> /dev/sda1     Apple_partition_map Apple                   63 @ 1       (
> 31.5k)  Partition map
> /dev/sda2         Apple_Bootstrap untitled              1954 @ 64 (977.0k)
> NewWorld bootblock
> /dev/sda3         Apple_UNIX_SVR2 untitled           1953126 @ 2018 (953.7M)
> Linux native
> /dev/sda4         Apple_UNIX_SVR2 untitled           1916015626 @ 1955144
> (913.6G)  Linux native
> /dev/sda5         Apple_UNIX_SVR2 swap               35554349 @ 1917970770 (
> 17.0G)  Linux swap
> /dev/sda6              Apple_Free Extra                   49 @ 1953525119 (
> 24.5k)  Free space
>
> Block size=512, Number of Blocks=1953525168
> DeviceType=0x0, DeviceId=0x0
> ```
>
> ## Embedded config file ##
>
> ~/grub/grub-embedded-config.cfg
> ```
> insmod part_apple
> insmod ext2
> set root=(ieee1275/hd,apple3)
> set prefix=(ieee1275/hd,apple3)/grub
> configfile /grub/grub.cfg
> ```
>
> `(ieee1275/hd,apple3)` is `/dev/sda3`, the partition for `/boot` formatted
> with EXT3 (`(hd,apple3)` alone didn't work for me). To be able to load the
> config file I assume grub needs to first load the given modules.
>
> ## Actual config file ##
>
> /boot/grub/grub.cfg
> ```
> insmod part_apple
> insmod ext2
> set root=(ieee1275/hd,apple3)
>
> timeout=5
> default=0
>
> menuentry "Debian GNU/Linux Sid (ppc64)" {
>     linux /vmlinux root=/dev/sda4
>     initrd /initrd.img
> }
> ```
>
> The first three lines can be omitted as they are also in the embedded
> configuration file but they're still informative as the embedded config file
> usually won't be touched again after installation.
>
> ## Command to create the grub image ##
>
> ```
> ~/grub# grub-mkimage -c ./grub-embedded-config.cfg -o ../grub.img -O
> powerpc-ieee1275 -d . -p '(ieee1275/hd,apple3)/boot/grub' *.mod
> ```
>
> Although the prefix is actuall given in the embedded configuration file,
> `grub-mkimage` insisted on having this in its command line (`-p` option),
> too. The search command with the UUID of the partition for `/boot` didn't
> work for me.
>
> ## Installation on HFS partition ##
>
> ```
> ~# mount /dev/sda2 /mnt
> ~# cp grub.img /mnt/
> ~# sync
> ~# dh -h
> [...]
> /dev/sda2       974K  852K  122K  88% /mnt
> [...]
> ~# umount /boot
> ```
>
> My `grub.img` is about 639 KiB in size, so the 1 MiB HFS partition just was
> big enough to host both yaboot and grub, but maybe this partition should be
> created with a bigger size.
>

Could you update https://bugs.debian.org/691207 with your findings.

My patch has never been merged upstream:

https://bugs.debian.org/610206#28

Thanks


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