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10.5: Make a bootable Time Machine backup drive
Authored by: fefo on Jan 24, '08 08:21:07AM

I, maybe wrong, thought that TM used the whole disk to perform backups. If so, once selected as the TM volume it would overwrite the restored DVD image. Am I correct?



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10.5: Make a bootable Time Machine backup drive
Authored by: joab on Jan 24, '08 08:28:36AM

You can have other things on the same drive as TM, sure. I have my Aperture vault on it for example.



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10.5: Make a bootable Time Machine backup drive
Authored by: Timmargh on Jan 24, '08 08:31:24AM

Time Machine will use all available space but it won't overwrite other non-Time Machine files on the same drive/partition.



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10.5: Make a bootable Time Machine backup drive
Authored by: macavenger on Jan 24, '08 08:33:21AM

No, TM won't overwrite any data already on the disk. It only uses all available space on the drive. Actually, in my experience so far, even that isn't quite accurate. I've been running it since about a week or so after 10.5 came out, and the space used by time machine appears to be holding fairly steady at about 10 GB more than the space used on the drive it is backing up, far less than the available space on the TM drive. Course, my files are relative static- if you change a lot of files, especially big ones, it would doubtless use more space, but probably still not gobs more.

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Aluminum iMac 20" 2.4 GHz/3GB/300GB HD



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10.5: Make a bootable Time Machine backup drive
Authored by: fefo on Jan 25, '08 12:13:16AM

Ok, thank you all for the replies. I've an iMac 20" with a 250Gb disk, and another 500Gb USB disk (half of it filled with music & stuff) that was afraid to use 'cause of what I thought TM did.
Anyway, I'll have to free some more Gb off of the USB disk.

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Fefo



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