PPC Minimal Install CD Issue

[WorldWideOliver]

hi, i'm trying to install gentoo again on a g5 ppc (32 bit, not ppc64)
so i found what i think is the most recent release (last updated july 12, 2009) for the installation cd and dl'd from the gentoo.org website
file is called

install-powerpc-minimal-20090712.iso

burned it to a cd and booted from the cd
it got half way through booting and then gave an error


>> Mounting squashfs filesystem
mount: mounting /dev/loop0 on /newroot/mnt/livecd failed: Invalid argument
!! Failed to $1; failing back to the shell...

BusyBox v1.7.4 (2009-07-12 02:05:40 UTC) built-in shell (ash)
Enter "help" for a list of built-in commands

/bin/ash; can't access tty; job control turned off
#


i tried several times, always the same error
i tried to burn a new cd, same error
i tried entering help, got a list of commands, and tried a few of them
some seemingly did nothing, others like "exit" and "return" led to kernel panic and a reboot (into the same problem again)
Any ideas?
Thanks

[i92guboj]

I know nothing about PPC, but if the minimal cd doesn't work, just use any other livecd that you like. It really doesn't matter, all you need is a linux terminal that you can use to chroot to your Gentoo installation once you uncompress the stage3 file. If you have another distro already installed you can also use it instead of a livecd.