booting from a .dmg, or "I don't wanna waste a DVD-DL" ;-)
booting from a .dmg, or "I don't wanna waste a DVD-DL" ;-)
- Subject: booting from a .dmg, or "I don't wanna waste a DVD-DL" ;-)
- From: Chris Zubrzycki <email@hidden>
- Date: Thu, 21 Sep 2006 00:08:36 -0400
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On Sep 20, 2006, at 6:58 PM, Dave Schroeder wrote:
On Sep 20, 2006, at 5:55 PM, Shaun Wexler wrote:
Optionally, if you have a free partition on any attached drive
that's big enough, you can just write the .dmg to the hard
drive partition rather than burning a DVD. This is common
practice for many Apple engineers. Then you can boot from that
partition rather than booting from the DVD. It's typically much
faster than burning a DVD, too.
Well then you can just leave the dmg as a dmg and just mount it
with hdid (etc) as well too. That is you don't have to expand
the dmg's onto disk.
I don't think you can boot from it in that case, though. And you
need to boot from it to run the installer.
No burning should be necessary. Any particular Mac OS X version
can be installed onto another partition by mounting the .dmg,
logging into the root account and double-clicking on the image's /
System/Installation/Packages/OSInstall.mpkg. You're only required
to boot from a CD/DVD when installing onto your [solitary] boot
volume.
No burning is necessary, but the best way to do this in the absence
of burning or a DL DVD writer is to restore the .dmg to any
partition or drive large enough to hold it, boot from that, and
perform the installation on the desired volume, as was originally
suggested.
iPods work wonderfully for this, they usually have a few gigs you can
free up, no wasted DVDs, and are very fast.
- -chris zubrzycki
- - --
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