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Bug 61283 - Livecd: 2.5 GHz G5 support
Summary: Livecd: 2.5 GHz G5 support
Status: VERIFIED FIXED
Alias: None
Product: Gentoo Release Media
Classification: Unclassified
Component: Everything (show other bugs)
Hardware: PPC64 Linux
: High blocker
Assignee: Gentoo LiveCD Package Maintainers
URL:
Whiteboard:
Keywords:
Depends on: 66098
Blocks:
  Show dependency tree
 
Reported: 2004-08-22 11:59 UTC by Joshua Root
Modified: 2004-10-26 19:47 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description Joshua Root 2004-08-22 11:59:22 UTC
When I try to boot from the livecd on my 2.5 GHz G5, I just get stuck with a grey screen. No bootloader, no error messages, nothing. I've tried the 2004.2 and 2004.1 minimal ppc livecds.

Reproducible: Always
Steps to Reproduce:
1. Insert LiveCD into G5's optical drive
2. Reboot, holding down the 'C' key
Actual Results:  
Screen goes grey and no further progress occurs.

Expected Results:  
Boots into linux. :)
Comment 1 Chris Gianelloni (RETIRED) gentoo-dev 2004-08-22 12:21:06 UTC
Have you tried the PPC64 LiveCD?
Comment 2 Joshua Root 2004-08-22 14:40:01 UTC
I hadn't, but I just tried the ppc64 2004.2-beta3 CD and it produces the same result.
Comment 3 Joshua Root 2004-08-22 22:22:44 UTC
OK, I've made some progress. Apparently the superdrive *must* be set to master in order to boot from it. Now the ppc64 CD boots fine, but I'm getting the "login prompt w/ unknown scrambled root password" problem that others have reported.

I get a bootloader prompt with the ppc32 2004.2 and 2004.1 livecds now, but after I select a kernel (doesn't matter which one, G5 or G5-SMP) it gets stuck with this on the screen:

... ok
opening display /pci@0,f0000000/ATY,ElanParent@10/ATY,Elan_B@1... ok
copying OF device tree...done
starting cpu /cpus/PowerPC,G5...failed: 00000000
calling quiesce ...
returning 0x01400000 from prom_init
_
Comment 4 Joshua Root 2004-09-20 03:54:32 UTC
Quick update: The 2004.2 beta5 ppc64 livecd seems to work, but unfortunately the mac-fdisk on it
is broken. The ppc32 livecd fails to boot as per comment 3.
Comment 5 Pieter Van den Abeele (RETIRED) gentoo-dev 2004-09-20 06:39:36 UTC
I'll have a look at building a 2004.3 release candidate for ppc32 this week
Comment 6 Tom Gall (RETIRED) gentoo-dev 2004-09-26 07:20:49 UTC
you might try beta 6 from ppc64 which was released last night. Tihs contains a newer kernel.  

However in your case the fdisk issue I wonder if it isn't the same problem that we saw with a dual 1.8 Ghz system. Basically the user zapped their pram and it cleared itself up.   
Comment 7 Joshua Root 2004-09-26 07:44:44 UTC
As I mentioned in bug 64739, zapping the PRAM doesn't help. I'll try the beta 6 CD though.
Comment 8 Joshua Root 2004-09-27 03:45:42 UTC
No luck with ppc64 beta 6. It completely locks up after a short time - the cursor keeps blinking but
I can't do anything, not even change virtual terminals. :(
Comment 9 Joshua Root 2004-10-20 22:42:43 UTC
Apart from the keymap weirdness of bug 68339, the ppc64 2004.3 beta 1 livecd seems to work great on my 2.5 GHz G5. Thermal control and everything. Shall we consider this bug fixed, or wait until ppc32 has been tested?
Comment 10 Pieter Van den Abeele (RETIRED) gentoo-dev 2004-10-21 12:47:01 UTC
tgall: ppc32 will have a gentoo-dev-sources 2.6.9 kernel for G5 machines. is that enough to ensure 2.5Ghz support. I've also had somebody ask me whether nvidia 6800 would work on a 30" in linux
Comment 11 Tom Gall (RETIRED) gentoo-dev 2004-10-21 14:56:40 UTC
I htink if you pull in the thermal patch from benh, things might be ok on a ppc32 kernel for 7,3 power macintosh hardware. The cautionary tale is that benh isn't maintainer ppc32 much anymore. He can best speak for himself on that one.

I honstly don't know the state of imac g5 hardware. I really wish I had one of those in person or benh or someone in the kernel hacking crown with bring up experience as from the boot logs I've seen thus far I think support for this hardware is close. 

I don't know that status of the 6800 nvidia hardware. I do know i haven't had much success with my 23" lcd from apple :-/. But this is a 9600 radeon card in that case.



Comment 12 Chris Gianelloni (RETIRED) gentoo-dev 2004-10-21 22:18:37 UTC
The keymap stuff should be fixed in genkernel 3.1.0, which is in portage now.  Essentially, if the user does not select a keymap, then we do not force one, but rather exit gracefully.  This should keep ppc64's keymap from getting hosed automatically by genkernel.
Comment 13 Tom Gall (RETIRED) gentoo-dev 2004-10-23 19:41:27 UTC
new 2004.3 beta 2 livecd release.  Beta1 was reported as successfully booting on this hardware.  Beta2 I have confirmed does fix the keymap issues.
Comment 14 Tom Gall (RETIRED) gentoo-dev 2004-10-26 19:47:45 UTC
going to close, good reports thus far.