Introduction
As the dual-CPU "Windtunnel" PowerMacs were released with a new ATA 100 driver following the release of YDL 2.3, it is necessary to move the primary drive to the ATA 66 chain to install YDL.
Tools:
Medium Phillips screwdriver
Paper clip
Needle nose pliers (optional)
Move the drive from ATA 100 to ATA 66
- Open up the computer and locate the hard drive which is oriented vertically near the back of the computer.
- Use a phillips screwdriver to remove the screw holding the drive's caddy. The screw is at the top of the hard drive/caddy assembly.
- Chances are the screw will drop behind the caddy. That is just part of the fun.
- Remove the drive caddy:
- Pull out slightly on the plastic tab on the side of the drive facing the front of the computer
- Pull the entire assembly up and it will detatch
- The lost screw will fall out, so look for it and put it somewhere safe.
- Remove the cables from the drive.
- At the bottom of the computer, near the front, is an empty caddy. Remove it:
- This caddy is upside down. Pull down on the plastic lever and gently remove the caddy.
- Set it aside.
- Replace empty caddy you just removed with the caddy holding the hard drive.
- Hold the caddy with the drive so the three knobs are on the top.
- Slide the drive caddy into the holder, middle knob first. Make sure the power and communication ports on the drive are facing the outside.
- Attach cables:
- There is a ribbon cable resting in the empty slot.
- Plug one end into the slot on the motherboard called 'ATA-66.'
- Plug the other end into the drive
- Do the same with the power cable (red, black, and yellow cable).
- Put the empty caddy in the spot previously occupied by the caddy with the hard drive.
- Shut the G4 case.
If you require OS X
- Open the CD.
- Insert the Mac OS X Install CD 1.
- Push the CD tray shut.
- Make sure the power, keyboard, monitor, and mouse are plugged in.
- Boot the computer, holding down the 'c' key ... note the CD install program starts.
- Go to the installer menu and select 'Open Disk Utility'.
- Select Mac HD.
- Create a YDL partition.
- Create a shared partition.
- Quit the partition tool.
- Complete installation of the first OS X CD.
- When the computer reboots after install, boot into Open Firmware:
- Hold the COMMAND-OPTION-O-F keys as the Mac chimes and hold them.
- Eject the CD from Open Firmware by typing:
eject cd [ENTER]
Install YDL
- Insert your YDL install CD and close the case.
- Type:
bye [ENTER]
... the computer will shut down now.
- Power-on the computer with the 'c' key held down.
- Choose install-text.
- install following the install instructions.
- Reboot and go into OpenFirmware by holding down the COMMAND-OPTION-O-F keys.
- Once you are into open firmware, type:
boot ultra2:,\\yaboot
- As Linux boots you'll see the following message 'modprobe: modprobe: Cant locate module block-major-2' ... don't worry, this is not a bad thing.
- Log in as root and:
pico /usr/sbin/ofpath [ENTER]
... look for a line 'newworld()' and then scroll down a little more and you will see 'case "$DEVNODE"' ... scroll down a little more until you see a line that looks like 'hda*)' ... and immediately below that you'll see a line that says 'echo "hd:$PARTITION"'.
- Change it to:
echo "ultra2:$PARTITION"
- Save the file, exit, and then:
/usr/sbin/ybin [ENTER]
If you have a dual processor machine:
mount /mnt/cdrom [ENTER]
cd /mnt/cdrom/Yellowdog/ppc/ [ENTER]
rpm -Uvh kernel-smp-2.4.20-0.7b.ppc.rpm [ENTER]
cd /boot/
rm -f module-info
ln -s module-info-2.4.20-0.7bsmp module-info
rm -f System.map
ln -s System.map-2.4.20-0.7bsmp System.map
rm -f vmlinux
ln -s vmlinux-2.4.20-0.7bsmp vmlinux
Upgrade the filesystem to ext3
Continue installing OS X
- Reboot into OS X.
- Install the software from the second OS X CD when OS X asks for it.
- YDL and OS X are ready to go.
This HOWTO was created by the Troy Vitullo, Terra Soft Solutions
