Unrecognized HD -- Drive on ATA bus 2

[Pierre Sahores]

Mike Abraham a =E9crit :
> =

> Actually, I have gotten YDL (2.2) working on my iBook2
> (writing this e-mail from Linux right now).
> =

> Nevertheless, the solution is NOT (at least for me)
> what Andrew has proposed below.
> =

> Many thanks to a guy who posted a response to a
> similar question at the Mandrake support forum. He
> noted that the current 2.4.n kernel only allows 2
> seconds for all IDE devices to be recognized. When
> there's a CD in the drive, it spins up first (maybe
> because the BIOS is set to boot from the CD first, or
> because it's on the first IDE channel? -- whatever),
> and the kernel never gets enough time to recognize the
> HD.
> =

> I inquired as to whether or not there's a way to tell
> the kernel to allow more time, but never got a
> response. So, instead, I basically set YDL to boot
> from a partition on my HD and then ran the install.
> =

> Here's the basic steps I took:
> =

> 1. Make an HFS partition, from which to boot Linux, on
> your drive. If your existing OS 9 or 10 partition
> occupies the whole drive, you'll need to run Drive
> Setup, make 2 HFS partitions, install OS 9 or 10 to
> one of them, and leave the other free to become your
> Linux boot partition. The other partition (that you're
> gonna boot Linux from) should be at least 45 MB in
> order to hold all the YDL boot files (read on)
> =

> If you have some free space already, you can instead
> use pdisk to format an existing unused partition as
> HFS. If you use pdisk, and have your HD on the
> non-primary IDE channel (i.e. ATA bus 2 -- as I do) ,
> you'll need to use pdisk version 0.8 or beyond. pdisk
> 0.7.n can't recognize IDE drives on secondary or
> tertiary channels, so, if the version of pdisk you
> have can't see your HD, use version 0.8 or beyond.
> =

> Note the partition number of the non-MacOS (Linux
> boot) partition you made -- you're gonna need it
> later.
> =

> 2. Stick the YDL Install CD in your CD drive and copy
> the entire 'install' folder to the non-MacOS (Linux
> boot) partition you made. Note that the install folder
> should look like a system folder rather than a regular
> folder (it has the folder + human face icon).
> =

> 3. This step is very important -- once the copy is
> complete, REMOVE the CD from the drive. For the reason
> described above, Linux can't boot the HD if there's a
> CD in the CD-ROM/CD-RW/DVD drive. Ever. This will be
> true even after you install and start using Linux.
> =

> 4. Reboot the machine into Open Firmware (hold option
> + apple + 'o' + 'f' while booting). Once you get the
> Open Firmware prompt, type:
> =

> boot hd:<Linux boot partition #>,\\yaboot [enter]
> =

> (replace <Linux boot partition #> with the number of
> the partition onto which you copied the YDL 'install'
> directory -- on my machine, the command would read:
> =

> boot hd:9,\\yaboot
> )
> =

> 5. You should now see the yaboot screen. At the yaboot
> prompt, type:
> =

> hd-install [enter]
> =

> This is very important. The yaboot.conf file defaults
> the boot to a CD-ROM install, so you must force yaboot
> to use the hd-install image by entering it directly
> (or by hand editing the yaboot.conf file on the MacOS
> side before you boot into Open Firmware).
> =

> 6. You should now see the familar YDL installer
> (except that you're gonna get further than ever
> before). Follow all the usual instructions. Note that
> when the installer asks you what type of install you
> wish to perform (HD, network, CD, etc), you DO want to
> pick CD-ROM.
> =

> Let me say that again. Even though you've booted from
> the HD, you still want the installer to install from
> the CD. The difference is that this time the kernel
> has actually recognized your HD, and will make it
> through  the partitioning step.
> =

> 7. When you get to the drive partitioning step, you
> can either accept the defaults (YDL will set up new
> partitions for Linux, including boot -- which will
> mean that the boot partition you created will become
> essentially wasted space) or go to custom
> partitioning.
> =

> In my case, I went to custom, so I could delete the
> boot partition I made and let YDL reuse the space for
> its own partitions. If you do the same, you'll need to
> specify the partition number you used previously to
> delete the Linux boot partition you made.
> =

> This may seem dangerous -- you'll be deleting the
> partition you booted from, in which case you'll need
> to repeat all the above steps if the install fails.
> Nevertheless, I had no problems with YDL once it
> recognized the HD, so I 'went for it'.
> =

> 8. Towards the end of the install, YDL will ask you if
> you want to set up your machine for dual boot, in
> which case it will do largely what you did in creating
> a Linux boot partition on your HD, but nicer (meaning
> it will also set up a ROM image with the boot options
> -- MacOS, Linux, CD). I would recommend following the
> defaults here.
> =

> -- That's it. Everything else works great. X, sound,
> you name it.
> =

> Good luck.
> =

> Mike
> =

--snip--

Thanks a lot Mike for those very fine explainations. I will follow them
and hope now to have my own Ibook2 14.1" loading YLD... to the end !

Best Regards, Pierre Sahores

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