Re-partitioning Time Machine Drive for use as Windows backup as well

tmoneygetpaid

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Feb 20, 2006
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I recently bought a 1TB external drive to use primarily as a backup for my apple laptop. I plugged the disk into my laptop and it asked me if I wanted to use it as my time machine backup device, I said I did indeed.

Since the backup drive is quite a bit bigger than my laptop hard drive, I tried to reformat it, shrinking the time machine partition to match the size of my laptop drive, and formatting the other as FAT32. I did this in OSX (or maybe in Ubuntu), so I could backup my Windows desktop onto it as well. But the desktop doesn't recognize the disk, presumably since it was partitioned with a non-Windows partition table.

So is there any way to use the external drive as both a time machine backup drive on one partition, and as windows backup on another partition? If I completely reformat the disk in Windows can I do this? I'd prefer not to have to backup all the data off the disk again, but if I need to, I can.

Thanks in advance.
 

johnmschoonover

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Jan 19, 2012
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I was under the impression that OSX was unable to write to NTFS, am I mistaken or is that only old news for pre OSX 10.4
 

tmoneygetpaid

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The issue is that Windows doesn't recognize the drive, and I know it can recognize FAT32 partitions, because pretty much every flash drive comes with one FAT32 partition. So I'm just wondering if the issue IS, in fact, the Apple partition table, and if I could just wipe the drive and write a windows partition table but still use it as my time machine drive. Anyone?

BTW, I am pretty sure Apple OS can't write to NTFS.
 
G

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I did it by partitioning my external drive into 2 partitions :
- NTFS for Windows
- Mac OS Extended (Case-sensitive, Journaled) for Mac
Give both partitions a user-friendly name (like Winbackup and Macbackup) and this should be OK
 

Denise85

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I recently bought a 1TB external drive to use primarily as a backup for my apple laptop.