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Re: New discussion: ppc64 installer -- ext2 /boot partition to keep yaboot happy.

On 10/09/2017 05:44 PM, John Paul Adrian Glaubitz wrote:

On 10/09/2017 11:49 AM, John Paul Adrian Glaubitz wrote:

On 10/09/2017 11:27 AM, John Paul Adrian Glaubitz wrote:
Yep, that's about right. I will implement that later today. Thanks for pointing 
me at that.


I have patched partman-prep now [1]. Interestingly, it used to have ppc64
support and it was removed [2].
Good news: With partman-prep enabled on ppc64 and after adding the hack to wipe 
and find the PREP partition on powerpc and ppc64 in grub-installer [1], the
installation of GRUB on ppc64 works now out of the box on my POWER7 system \o/. 

One can simply install GRUB on these systems now by choosing "Back" in the
yaboot-installer menu and then choosing to install GRUB.
I today did a "normal" and an expert install with successful GRUB installation with the [installer ISO] from 2017-10-10 and can confirm that both also work on POWER5 systems, specifically on a 9131-52A.
If anyone on the list has a POWER3, POWER4 or POWER6 system available, it would be interesting to see, if this works for these out of the box, too.
[installer ISO]: https://cdimage.debian.org/cdimage/ports/debian-9.0-ppc64-NETINST-1.iso
If you are unable to boot your POWER5 system with this disc with similar messages than the following ones: 

```
Config file read, 1342 bytes
Welcome to Debian GNU/Linux sid!

This is a Debian installation CDROM,
built on 20171012-17:54.


Enter one of the following options to begin:

install     64-bit processor (G5 or POWER3/4/5/6/7)
install32   32-bit processor (G4 or earlier)

Press TAB for a full list of options.


If the system fails to boot with a white screen
which doesn't go away, add 'video=ofonly'.



Welcome to yaboot version 1.3.17
Enter "help" to get some basic usage information
boot: expert
Please wait, loading kernel...
   Elf64 kernel loaded...
Loading ramdisk...
ERROR: claim of 0x100000 at 0x1f40000 failed
Claim failed for initrd memory at 01f40000 rc=ffffffff
ENTER called ok
0 >
```
...then try the following OF commands to wipe your NVRAM (you'll loose your configuration there, though) and retry: 

```
dev nvram
wipe-nvram
```

...as per [1] and [2]. This made booting from the disc to work for me then.
[1]: https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/W51a7ffcf4dfd_4b40_9d82_446ebc23c550/page/Troubleshoot%20a%20claim%20failed%20for%20initrd%20error%20message
[2]: https://oss.gonicus.de/openpower/index.php/Claim_failed_for_initrd_memory 

Cheers,
Frank
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