howdee - im a new user, but registered for just this one long/detailed comment/reply..
Dec 03, 2016 Install OSX 10.5 Leopard on Powerbook G4 (a1138) with a USB drive! WITH 10.5 LEOPARD IMAGE. Install Mac OS X 10.5 Leopard via USB on PowerPC Macs - Duration. Jan 26, 2016 Here is Mac OS X 10.5 Combo Update, which is Apple’s suggested update for those customers running Mac OS X Leopard 10.5.0. Lets look how we can do Mac OS X 10.5 Free Download in this article. Mac OS X 10.5.0 includes general operating-system fixes that boost the stability, compatibility and security of the Mac.
Apr 23, 2014 Install Mac OS X 10.5 Leopard via USB on PowerPC Macs. I should also mention that I installed Mac OS X 10.5 on an 867MHz PowerBook G4 in this very same manner.
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Mar 15, 2016 Leopard.DMG (InstallESD.DMG) is shared quite commonly on internet. Having Mac OS X Leopard.DMG, it is quite easy to convert Leopard.DMG to Leopard.ISO (available solutions in both Mac OS X and Windows). However, here below are 2 ways to download Mac OS X Leopard DVD Retail 10.5.ISO. Leopard 10.5 DVD Download.
0 - THANK YOU to all who came before on this hint/thread/comment.. i am just standing on top of the giants before and adding my little comments for others..
1 - i could not make a windows-keyboard work.. in particular, my imac (g5) would 'ask' about it when powering up by having me press the key 'just inside of shift key' on each side.. Unable to mount dmg mac. thus, i was never able to make the keyboard-combo work correctly.. if you cannot get into open-firmware, then try getting a normal MAC-keyboard..
2 - i was having all sorts of problems trying to get the correct device to use for the 'dir' command.. i could see the tree of information, but could never make a working 'devalias' for myself.. two clues:
a - if (when you type devalias xx yyy@yyyyyyyy) you receive a comment 'no alias' in response, then it did NOT work.. you should see a 'good' response of just the word OK.. even so, i was never able to 'use' my own devalias..
b - i noticed in one of the later-comments someone had tried just typing the word 'devalias' without anything else.. when i typed that, i got a nice long list of predefined aliases.. in particular, i could see one called 'first-boot' that looked like it should access my working tiger-hdd internally.. also, if i just typed 'boot' it would do what youd expect [boot from the first-boot device, which is the current internal hdd]..
- and i finally saw something good.. nb, i needed the exact-extra-characters listed [7 chars starting with / and ending with ] to get a 'good' dir.. and i assume others will have the devalias of 'first-boot' predefined like i did..
- was the magic incantation i used for getting to my external-usb-key [8gb formatted/dmg-restored as needed].. in particular, the '1:3' here on usb0 and the '0:3' with first-boot matched the disk:partition information i got when i looked at the key using the regular get-info command from tigers disk-utility..
i could do a more-detailed 'dir' on the key until i got to the ..CoreServices directory level.. i could NOT actually do a 'dir' on the BootX file itself.. but the CoreServices directory showed the 'magic' tbxi flag on that BootX file that i expected to see..
i could use the 'UP-ARROW' to repeat the last command that id typed, so that i could just change the 'dir' to a 'boot' and add the BootX to the end and it would work.. (using left- and right-arrows to leave the other good characters in place)
4 - once i got my magic incantation correct, it took prolly an hour to get thru the first-boot - but eventually i got the great happy-mac sound from the other room.. hopefully you will be able to too.. :)
Mac Os X Leopard Spec
repeating: for me, the exact command i used was .. gl & hth, h.