10.5: Make a bootable Time Machine backup drive

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10.5: Make a bootable Time Machine backup drive
Authored by: emax on Thu, Jan 24 2008 at 8:41AM PST

As others have commented, Time Machine won't overwrite your OS info. And it may not fill the entire hard drive. But if it does nearly fill the hard drive, OS X will have a difficult, if not impossible time booting.

You always need some free space on your boot volume that the os can use for swap.

10.5: Make a bootable Time Machine backup drive
Authored by: joab on Thu, Jan 24 2008 at 8:45AM PST

I don't think this hint is about booting an actual Mac OS X system, bur rather just the installer, which comes on a DVD that is read-only anyway so there shouldn't be a problem with swap.

10.5: Make a bootable Time Machine backup drive
Authored by: jbarley on Thu, Jan 24 2008 at 4:16PM PST

You are spot on, I probably could have made this clearer in my original post.