Handbook Talk:PPC/Installation/Base

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Installation instructions for Powerbook G4

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Hi, I have installed Gentoo on a powerbook G4 using the ISO file with a USB drive. The process is a bit tricky and I can help include it in the wiki. Please let me know how do I add the info. Here is rough outline:

 . mount the iso image on loopback                                                                                                         
 . create fat32 partition on a usb                                                                                                         
 . cp -r all files from the iso                                                                                                            
 . edit yaboot.conf and change dev from "cd" to "ud"                                                                                       
 . use "devalias" to find the usb disk is name ud                                                                                          
 . dir ud:1,\ to list file system                                                                                                          
 . boot ud:1,\boot\yaboot

— The preceding unsigned comment was added by Min.xu (talkcontribs) 15:34, April 3, 2017‎

Hi Min.xu , thank you for the information. I will alert the PPC team. Because it contains installation critical information, the Handbook can only be edited by Gentoo developers. You did the right thing by opening a discussion here. Please remember to also sign your discussions with the Signature & Timestamp button in the edit menu. Kind regards, --Maffblaster (talk) 22:45, 3 April 2017 (UTC)

Cool. Thanks a lot! --Min.xu (talk) 22:49, 3 April 2017 (UTC)

I alerted them. Hopefully someone will eventually get around to replying to you! If not, you poke admins in the IRC channel: #gentoo-powerpc (webchat). :) --Maffblaster (talk) 22:52, 3 April 2017 (UTC)

Hi, I try to do the same thing and am to lazy to get out an old PC with a CD burner installed.

Nowadays the iso-image does not include yaboot anymore so the process is slightly different.

On another Linux computer do

 . export USB_DRIVE=/dev/sdg # adjust this to your needs
 . # dump the iso on a USB drive for ex.:
 . dd if=install-powerpc-minimal-20190720T101002Z.iso of=${USD_DRIVE} bs=1M conv=notrunc,noerror,sync
 . # remove all partitions in the partition table otherwise the drive gets ignored during bootup
 . # see line "If disk and it has at least one partition, skip." in ppc32.igz:/etc/initrd.scripts
 . fdisk ${USB_DRIVE}
 .   -> d
 .   -> w

Now connect the USB drive to the Powerbook G4 and start in OpenFirmware mode ⌘+⌥+🄾+🄵.

 . # find the propper USB device - look for disk@1
 . dev / ls
 . # in my case: found under /usb@1b
 . # find the propper alias - look for /pci@f20000000/usb@1b
 . devalias
 . # in my case: usb1
 . # start the grub boot loader
 . boot usb1/disk@1:,\boot\grub\powerpc.elf
 . # be patient this takes 2-3 minutes
 . # choose in the grub menu: "kernel: ppc32"
Done. The LiveCD should now booting. MoeDathstern (talk) 10:14, 30 July 2019 (UTC)


This is great info. It saved my day. It initially didn't work for me. I found out that I had to `dd if=/dev/zero of=/dev/sdX` to wipe the entire USB stick first. Otherwise, grub fails to load the partition table or something related to unknown file system. -- Min.xu (talk) 02:39, 6 June 2022 (UTC)