Re: YDL 2.1 & G3 B&W: Restoring yaboot parameters


Subject: Re: YDL 2.1 & G3 B&W: Restoring yaboot parameters
From: Bob Beaton (bob@keyengine.com)
Date: Sun Mar 17 2002 - 09:39:08 MST


Yup, I did the archive scan and I did try the OPT key technique.

During a restart with OPT held down, I did not get a menu of bootable
partitions. Rather, the machine appeared to hang-up very early in the
boot-up sequence. During this boot-up sequence, the video went blank so
I couldn't tell what was going on. Nevertheless I held OPT down for
several minutes but didn't see any change in the machine state. I needed
to cycle the power to get the machine responding again.

FWIW, I'm using a stock ATI RAGE 128 video card and a stock Adaptec
2940B Ultra2 SCSI card in the G3, which also has a Newertech G4/500
processor with 1GB RAM. And I've got MacOS and YDL split between two
internal 9GB SCSI drives, as follows:

  /dev/sda6 - MacOS system (4GB) /dev/sdb6 - MacOS user (4GB)
  /dev/sda7 - YDL bootloader (10MB) /dev/sdb7 - YDL swap (256MB)
  /dev/sda8 - YDL root "/" (4+GB) /dev/sdb8 - YDL swap (256MB)
                                     /dev/sdb9 - YDL "/home" (4+GB)

I found the OPT-APPLE-O-F technique in the list archives (and YDL
HOW-TO) as well. I was able to get into the OF settings page after a
couple OPT-APPLE-P-R (5 chime) boot-ups; otherwise, the machine simply
booted into MacOS. As shown above, my bootloader partition is /dev/sda7
and my YDL root partition is /dev/sda8. Once in the OF setting page, I
tried various settings for the

setenv boot-device hd:x,\\:tbxi

command (e.g., hd:7, hd:8, hda7, hda8, sd:7, sd:8, sda7, sda8--obviously
I was grasping at straws here and couldn't find much documentation on
this parameter setting), including the system's default setting (i.e.,
setenv boot-device hd:,\\:tbxi). After setting the boot-device
parameter, a subsequent 'boot' command failed consistently with a
message saying it could not read/open the specified partition. I really
don't understand OF, so perhaps my use of the 'hd' parameter for a SCSI
partition was wrong--nevertheless, I tried to follow the available
docs....

I also found the 'c'-key technique, which didn't do a thing as I recall.
The machine just booted into MacOS without pause for the boot selection
menu.

Thanks for your comment!
Bob

On Sun, 2002-03-17 at 03:47, Christopher Murtagh wrote:
> Check the list archives. Did you try booting with the option key held
> down? If all is well, this should scan your disks for bootable partitions
> and you would simply choose the linux partition. Did you try this?
>
> Cheers,
>
> On Sun, 17 Mar 2002, Bob Beaton wrote:
> >Okay, I did a PRAM reset and completely lost the yaboot settings, My G3
> >B&W (running SCSI, not ATA disks) would only boot into MacOS; no yaboot
> >menu and no luck hitting the "L" key during the boot-up sequence. No
> >problem, I thought.... Yea, right!
>
> Check the list archives. Did you try booting with the option key held
> down? If all is well, this should scan your disks for bootable partitions
> and you would simply choose the linux partition. Did you try this?
>
> Cheers,
>



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