on 22/5/02 07:03, Marc van Gemert at [EMAIL PROTECTED] wrote: > Let's say that on my B&W G3 I have OS 9.x.x on partition 1 and OS X 10.x.x on > partition 2. If the startup disk is set to OS X and I want to boot OS 9 at > startup I boot into OF and type this: > > setenv boot_device hd:1,ofboot.b > or only temporary > boot hd:1,ofboot.b > > If the startup disk is set to OS 9 and I want to boot OS X at startup I boot > into OF and type this: > setenv boot_device hd:2,ofboot.b > or only temporary > boot hd:2,ofboot.b
> Correct? Sort of! There are a whole slew of "partitions" that exist on the drive before what we as regular users recognise as partitions, so the numbers will be higher. For example, in my 3 partition setup partitions 6,7 and 9 (9 existed in the map before I deleted the Linux partition at 7) were the real partitions. There's an app in OS X, pdisk, that will allow you to view your drive's partition map. You have to run it as a superuser so type "sudo pdisk" and type in your root password (same as your primary admin account). The only way you can harm your disk is if you go into "e"dit and *then* start messing with settings in there and *then* save the changes (you can safely go and look, especially if you "r" toggle readonly flag in the main menu). This same app (text-only) exists for OS 9 (free download from MKLinux site IIRC). Type ? for help, and view the listing of all attached drives with L. (I have a 12 GB IDE) Commands are: h print help v print the version number and release date l list device's map L list all devices' maps e edit device's map r toggle readonly flag a toggle abbreviate flag p toggle physical flag q quit the program Top level command (? for help): L /dev/rdisk0 map block size=512 #: type name length base ( size ) 1: Apple_partition_map Apple 63 @ 1 2: Apple_Driver_ATA*Macintosh 54 @ 64 3: Apple_Driver_ATA*Macintosh 74 @ 118 4: Apple_Driver_IOKit Macintosh 512 @ 192 5: Apple_Patches Patch Partition 512 @ 704 6: Apple_HFS OS X Disk 6291456 @ 1216 ( 3.0G) 7: Apple_HFS Apple_HFS 3145728 @ 6292672 ( 1.5G) 8: Apple_HFS Anaconda 16012382 @ 9438400 ( 7.6G) 9: Apple_Free Extra 210 @ 25450782 For details on Open Firmware commands go to www.Yellowdoglinux.com and look at #2, Reset Firmware: <http://www.yellowdoglinux.com/support/solutions/ydl_general/boot_functions. shtml>. You can probably use "printenv" in the OpenFirmware CLUI to get the partition # thereby avoiding the use of pdisk (though, it's neat to know how much raw power lies under the hood of our pretty GUI... I guess this is the modern equivalent of a souped up car). -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.shtml> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/> Using a Macintosh? Get free email and more at Applelinks! <http://www.applelinks.com>
