Can't boot to Linux after PRAM Zap - More Info
Olaf Olson
yellowdog-general@lists.terrasoftsolutions.com
Sun Jun 20 21:43:01 2004
Bruce,
Thanks for the replies, but...
Your first message said:
boot /pci@80000000/pci-bridge@d/ADPT,2940U2B@4/@0:10,\\:tbxi
and your second message said that yaboot is on 8. That must mean that
using the command you entered above is what yaboot would do, if it still
existed where it is supposed to, on my machine.
Am I correct in this assumption? If yaboot is where it should be, on the
Apple_bootstrap partition, you would enter the command:
boot /pci@80000000/pci-bridge@d/ADPT,2940U2B@4/@0:8,\\:yaboot
If you entered this command and got no boot choices, or an error saying
that OF couldn't open yaboot, that would be your indicator that yaboot
is missing. The only remaining alternative, if yaboot is gone, is your
original command:
boot /pci@80000000/pci-bridge@d/ADPT,2940U2B@4/@0:10,\\:tbxi
Since I am not using an Adaptec 2940U2B adapter, at SCSI address 4, I
would use the path to the ATA card, instead. Correct?
PS. How do I get a partition map, from the OSX side?
Thanks
Olaf
bruce woller wrote:
> 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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>>
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