bryan51 Posted April 3, 2007 Share Posted April 3, 2007 I have a hard drive with 2 OSX partitions and a Data partition. Initially I was having problems with using CCC to backup the main OSX to the backup and making it bootable. It was always not recognizing my user/pwd?? So then I reformated the HD using OSX Disk Utility.... that seems to have fixed that. I can reboot right into it no problems. Anyways sometimes I use the other partition for testing and do installs on it. When this happens it changes the automatic startup to that patition. Is there an easy way in OSX to change it to whatever partition I want to use? Yes I know you can use F8 to get to the bootloader where it can be chosen.... More ramblings..... I have 2 computers, one is SSE2 and the other SSE3. I've always had stability issues with SSE2?? SSE3 is rock solid and I am quite pleased with OSX. I got my 7600GS vid working with QE/CI. P4P800SE with 3Ghz Pentium... the time that OSX says it'll take to install is only 12 min!, on the SSE2 box it was around 40 min! too. thx Link to comment https://www.insanelymac.com/forum/topic/47343-osx-and-setting-boot-partition/ Share on other sites More sharing options...
Neonkoala Posted April 3, 2007 Share Posted April 3, 2007 http://neonkoala.co.uk/content/view/33/34 Have a look at that and it should explain about choosing a startup disk. Link to comment https://www.insanelymac.com/forum/topic/47343-osx-and-setting-boot-partition/#findComment-339117 Share on other sites More sharing options...
bryan51 Posted April 4, 2007 Author Share Posted April 4, 2007 Thanks for that info/link. I've looked at my existing com.apple.boot.plist on both partitions and neither have the rd=disk0sX line in them. I haven't tried this yet but I suppose if it works it must be a way to force a particular partition to boot up. Link to comment https://www.insanelymac.com/forum/topic/47343-osx-and-setting-boot-partition/#findComment-339598 Share on other sites More sharing options...
Neonkoala Posted April 4, 2007 Share Posted April 4, 2007 You have to work out the disk0s0 name by looking at the order of partitions. First partition on first disk is disk0s1, first partition ons econd disk is disk1s1, thirdpartition on third disk is disk2s3. If you don't find the line in your com.apple.boot.plist that's fine, you just need to add in the correct syntax. Link to comment https://www.insanelymac.com/forum/topic/47343-osx-and-setting-boot-partition/#findComment-339668 Share on other sites More sharing options...
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