Can't boot to Linux after PRAM Zap - More Info

[bruce woller]

Olaf:

I don't think you can leave out the X factor in 'boot hd:,\\yaboot'  - 
I think you need X to be the partition of your bootstrap partition that 
contains yaboot.  Here is the partition map of one of my disks 
containing yaboot it is on partition 8:

[c-24-8-163-18:/Users/bwoller] bwoller# pdisk /dev/rdisk2 -dump
/dev/rdisk2  map block size=512
    #:                 type name                 length   base     ( 
size )
    1:  Apple_partition_map Apple                    63 @ 1
    2:       Apple_Driver43*Macintosh                54 @ 64
    3:       Apple_Driver43*Macintosh                74 @ 118
    4:   Apple_Driver_IOKit Macintosh               512 @ 192
    5:        Apple_Patches Patch Partition         512 @ 704
    6:            Apple_HFS macintosh HD       16404484 @ 1216     (  
7.8G)
    7:            Apple_HFS exchange            1536000 @ 16405700 
(750.0M)
    8:      Apple_Bootstrap bootstrap              2048 @ 17941700 (  
1.0M)
    9:      Apple_UNIX_SVR2 home                8192000 @ 17943748 (  
3.9G)
   10:      Apple_UNIX_SVR2 root                8192000 @ 26135748 (  
3.9G)
   11:      Apple_UNIX_SVR2 swap                1572864 @ 34327748 
(768.0M)
   12:           Apple_Free Extra                 15936 @ 35900612 (  
7.8M)

Device block size=512, Number of Blocks=35916548
DeviceType=0x0, DeviceId=0x0
Drivers-
1: @ 64 for 23, type=0x1
2: @ 118 for 36, type=0xffff

[c-24-8-163-18:/Users/bwoller] bwoller#

Regards,
Bruce
On Sunday, June 20, 2004, at 08:45  PM, Olaf Olson wrote:

> I managed to do some more research, with a little brain wracking. The 
> words Open Firmware came to me, as if a message from the ether. I 
> hunted down some references to that and found the Command-Option-O-F 
> that booted me into Open Firmware.
>
> I studied further and found such vital information as this:
>
> boot hd:,\\:tbxi
>
> Will always boot, IF you have a legitimate boot device, with a 
> legitimate bootable partition and you haven't messed with any of the 
> things in Open Firmware that can kill you.
>
> which just gets you back to the MacOS. Even some suggestion that 
> booting with the spacebar held down would switch to the next OS that 
> hadn't been used in the previous boot.
>
> ericpeden also included a somewhat cryptic message in his yaboot FAQ:
>
> http://penguinppc.org/projects/yaboot/doc/yaboot-faq.shtml#what_is_of
>
> boot path-to-bootstrap-device:X,\\yaboot
>
> Since I discovered that hd is an alias for the 
> path-to-bootstrap-device and X is defined as the partition on which 
> the boot is installed, AND X can be simply left out of the entire 
> equation when it is already defined in O-F, the command:
>
> boot hd:,\\yaboot
>
> SHOULD restart, with YDL as a choice and everything should be 
> hunky-dory.
>
> Of course, that's only true when you haven't missed a VERY important 
> piece of info, as I obviously have, because this still doesn't get me 
> anywhere other than MacOSX 10.2.8, where my USB mouse (any USB mouse) 
> is still not recognized.
>
> Maybe this info can help someone diagnose what I have done and advise 
> me on recovery?
>
> Thanks,
>
> Olaf
>
> Olaf Olson wrote:
>
>> Life was too boring. Everything was working, so I decided to upgrade 
>> the Mac OS on my G3 350 B&W, to Mac OSX 10.2.8. So it could fail. YDL 
>> was still there, right.
>>
>> After the install reboot, I couldn't move the cursor. The Mac refused 
>> to recognize my mouse. It even refused to recognize the original 
>> Hockey Puck. On the advice of a "Mac Expert", I zapped the PRAM. Now 
>> it only boots to Mac OSX and STILL the mouse doesn't work.
>>
>> Can anyone direct me to the fix, so I can reboot and go to Linux? 
>> Once there, I can always reinstall OSX 10.2 and upgrade it gently, 
>> once again.
>>
>> I tried to search the archives, but I don't know what to look for. I 
>> also thought I'd try the FAQ, but I can't recall the address and my 
>> bookmarks are on the inaccessible Mac. I am forced to use webmail on 
>> a... you guessed it... Microflab <hack> <gasp> <spit> PC.
>>
>> Please help
>>
>> Olaf
>>
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