maiotb.blogg.se

I’m now ready to try out Apple Time Machine for the first time… I’m posting it here just in case it saves the day for someone else. In any case, there is an Apple Discussion Board thread that saved the day for me.

Why Apple doesn’t communicate this error intelligibly when you attempt to format I don’t know.

Once you get to that magic dialog, it’s pretty clear what to do. Flipping it to GUID or Apple Partition Map will work. It turns out, if the boot record scheme is set to “Master Boot Record”, you will not be able to format it as Mac OS Extended. The solution: If you go to the partition map and click the “Options…” button, you’ll be able to select which scheme to use for the boot records. The problem: When you try to reformat in Disk Utility, you’ll get a very cryptic error that says that there was an unknown error with the partition map. Of course, if you are using it with a Mac, then you’ll want to reformat it using Mac OS Extended (HFS+). When you buy a Western Digital (WD) 1 TB My Book External Hard Drive, they usually come formatted for Windows using FAT32.