$ cat imac-g3.txt
Introduction

We have 3 of these imacs, the blue model. Picked them up for $50ea.

Current State

- 1x Keyboard is broken
- 2x Apple Pro mouse is broken
- 1x Computer needed RAM (added) and HDD (pending IDE2SD adapter arrival)
- 1x Computer black screen and boot music, also with HDD disconnected, needs review
- 1x Computer is operating but looks like the hdd is broken have now replaced HDD, MACOS 9.2.2 installed FIXED)


- Have purchased 3x IDE2SD adapters (Model:SD35VC0)
- USB boot disk doesn't mount the HDD, not sure if this is indicative of the HDD problems or a limitation of the disk
- First boot from USB after a long cool down saw the hdd and initialized it, inserting the secondary USB with the OS installation media on it was also successful and could begin the - - installation to the HDD from it.

Serials

- IMAC1

- IMAC2 - P1212OYLMDH
    - CPU: PowerPC G3 500MHz
    - GPU: ATI Rage128 Pro
    - RAM: 256MB PC100 SDRAM PC100-222S
    - HDD: IDE2SD installed/mounted with 32GB MicroSD in an adapter
    - MacOS 9.2.2 Installed from USB

- IMAC3


To Do

- Install IDE to SD adapter to replace the HDD DONE
- Install MACOS 9.2.2 either from disc or USB DONE


Notes

- Can be booted from a USB (depending on the creation method)
- Can be booted from USB without HDD installed
- IDE seems to be finicky about which HDDs it will accept
- You can boot from a USB then install MACOS 9.2.2 from another USB drive images from a toast file
- Device will just show a black screen if the HDD can't be recognized, wont boot into OpenFirmware nor Option Boot


Create a bootable USB from a .toast image on Linux

`dd if= of=
`


May be able to seen by options boot, hold down options key before power on but not always the case.


Can be booted from Open Firmware

Hold `Option+Command+O+F` during boot to enter open firmware, release when prompted.


When you see the ok 0> prompt you are ready to enter commands
```
  ok
  0 >
```
To boot from an images USB drive enter the following command and press enter
```
  ok
  0 > boot usb0/disk@1:,\\:tbxi
```
This will boot the first USB mass storage device on the system (usb0)


- boot - boot from the following device
- usb0 - boot from a device on the first USB hub
- disk - the usb mass storage device on usb0
- @1 - targets the first partition
- tbxi - boot from the file iwth the file type tbxi (yaboot)


Tools
- https://www.macintoshrepository.org/23373-mac-os-9-2-2-boot-kit-for-booting-your-g3-g4-from-an-usb-stick
- https://macintoshgarden.org/apps/mac-os-922-universal

References
- https://www.debian.org/releases/sarge/powerpc/ch05s01.html.en
- https://sites.google.com/site/shawnhcorey/howto-boot-apple-powerpcs-from-a-usb-drive-in-open-firmware
- https://www.macintoshrepository.org/articles/115-how-to-boot-ppc-powermacs-g3-g4-g5-from-a-usb-stick-or-drive-
- https://eshop.macsales.com/Tech/manuals/idehdsettings/Maxtor72.pdf