I believe that has a 32 bit EFI. If so then you would need an installer with 32 bit bootloader
like the Debian multi-arch.
Thomas
Thanks for all the advice.
Turns out that the iMac G5,1's internal hard disk drive could very well be corrupt, as it didn't at all allow disk repartitioning for an intended dual-boot Linux install.
Messages came up during the Mac OS X Disk Utility verification procedure 1) "The volume Macintosh HD was found corrupt and needs repair" and 2) "Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disk), and then use Disk Utility to repair this disk."
Got this iMac G5 for free, don't have the Mac OS X installation disk, don't wish to purchase a Mac OS X installation disk for this iMac, and don't wish to go through the anti-privacy-loops of creating or otherwi$e acquiring an AppleID.
Apparently, the internal hdd is a 3.5" ST3250824AS Seagate Barracuda 250GB that requires completely disassembling the iMac case to install a replacement.
Not yet really worth it to replace the 3.5" hdd containing Mac OS X with another comparable 3.5" hdd so that can then install Linux on the latter.... will stick with what I've got :-)
-A
... attempting to dual-boot install Linux on the older iMac G5 desktop machine found several weeks ago.
It's apparently an iMac A1207 "Core 2 Duo" 2.16GHz 20"
Identifiers: Late 2006 - MA589LL - iMac5,1 - A1207 - EMC 2118
Quoting from this iMac specs'description at [02]:
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The iMac "Core 2 Duo" 2.16 20-Inch features a 2.16 GHz Intel "Core 2 Duo" processor (T7400), with two independent processor "cores" on a single silicon chip, a 4 MB shared level 2 cache, a 667 MHz system bus, 1 GB of RAM (667 MHz DDR2 SDRAM, PC2-5300), a 250 GB (7200 RPM) Serial ATA hard drive, a vertically-mounted slot-loading DVD+R DL "SuperDrive", ATI Radeon X1600 graphics acceleration on a PCI-Express bus with 128 MB of GDDR3 memory, a built-in iSight video camera, and built-in stereo speakers underneath the 20" TFT Active Matrix LCD (1680x1050 native) display designed to "bounce sound off the desk below".
Connectivity includes three USB 2.0 ports, two Firewire "400" ports, built-in AirPort Extreme, and Gigabit Ethernet, as well as mini-DVI, which supports an external display in "extended desktop" mode (rather than just "mirrored mode").
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This iMac's RAM was upgraded to 3 GB.
Mac OS X 10.6.8 "Snow Leopard"[03] is installed and functioning fine on the current iMac's spinning-platters SATA drive.