Known Issues

My system reboots right after EFI is initialized

Some computers are just not able to run Leopard properly, this is mainly due to incompatibilities between the BIOS and Leopards ACPI platform. You can try a different BIOS revision, maybe you find one that works. Some people have success booting with cpus=1 bootflag at Darwin.

I am stuck at waiting for root device…

Your SATA and/or IDE chipset is most likely not currently supported in Leopard.

My system freezes right before the desktop loads

If you installed video drivers try removing them. Boot with -s at the Darwin promt. this is an example for Nvidia video cards.

/sbin/fsck -fy
/sbin/mount -uw /
rm -R /System/Library/Extensions/Ge*
rm -R /System/Library/Extensions/NVD*
rm -R /System/Library/Extensions/NVinject.kext
exit

With Leo4allv3 a script is included that will install to the root directory called options. Just boot with -s bootflag at Darwin, then:

/sbin/fsck -fy
/sbin/mount -uw /
./options

you will have your choice to remove ati or nvidia video.

I get a popup once Leopard loads saying an Extensions was not properly installed

You can used the Extensions-Repair application I included to repair this. Alternately you can open terminal and type this:

sudo -s ##enter password
chown -R root:wheel /System/Library/Extensions/*
chmod -R 755 /System/Library/Extensions/*

I am stuck in a loop at account creation

You can try disabling your network card and disconnecting the cable. If this does not work you can setup up an account prior to loading into Leopard. Type -s at the Darwin boot prompt.

/sbin/fsck -fy
/sbin/mount -uw /
./options

Now pick the number for account creation loop.

My system freezes during the install

There are a couple things I know can cause this on some chipsets. If you have more than 2 Gigs of RAM you may randomly get a crash during the install process. You can remove some of your RAM or try the bootflag

maxmem=2048

at the Darwin prompt.
Another thing that can cause this is a bad DVD, if you want to rule out the 2nd option let the installer run its disk verify.