In System Preferences there is a Startup Disk button and in there it will scan all your drives allowing you to choose which one to boot from. That means the drive (internal or external) will need to have a bootable OS on it. There might be some limitiations depending on the vintage of the hardware as far as booting from USB or Firewire. I think most anything in the last few years will do Firewire. I don't have a USB drive so I'm not as familiar with booting from those.
The utility is called Disk Utility and is in the utilities folder which you can get to from the finder using apple-shift-u. CB hank smith wrote: > how do I boot to a external hard drive? > also what is the utility called? > > ----- Original Message ----- > *From:* Chris Blouch <mailto:cblo...@aol.com> > *To:* macvisionaries@googlegroups.com > <mailto:macvisionaries@googlegroups.com> > *Sent:* Thursday, August 27, 2009 11:55 AM > *Subject:* Re: program to split a 6 gig dmg in to 2 dvds? > > That doesn't break it into two pieces. A single external volume of > sufficient size could hold your 6GB image. Disk utility can clone > your DMG to another device (USB thumb drive, hard drive or > whatever). You just can't use a DMG that's been cut into two > separate volumes. > > CB > > ben mustill-rose wrote: >> Would something like >> http://discussions.apple.com/thread.jspa?threadID=1233627 >> be possible? >> >> On 26/08/2009, Chris Blouch <cblo...@aol.com> wrote: >> >>> If this is an installer, I don't think you can split it. DMG files get >>> mounted up as disk drives and so the installer can and will seek for >>> files all over the virtual disk. There is no requirement that they pull >>> in all the files from one and then move to the rest. There are lots of >>> ways to split a file in pieces, but you'll have to combine them together >>> before you can use it. If they are just data files then there is no need >>> for the DMG. Beyond that you would need to have intimate knowledge of >>> which files are needed when and make a custom installer, probably beyond >>> the scope of work you wanted to tackle. >>> >>> CB >>> >>> hank smith wrote: >>> >>>> hello I have a 6 gig dmg >>>> this is a bootable disk >>>> need to split this in to 2 dvds have it ask me to hit enter when >>>> second disk is inserted >>>> what program will do this? >>>> >>>> Hank >>>> >>>> >> >> >> > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To post to this group, send email to macvisionaries@googlegroups.com To unsubscribe from this group, send email to macvisionaries+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/macvisionaries?hl=en -~----------~----~----~----~------~----~------~--~---
