How to format external harddrive

joestriker

Registered
Hi everyone
How do i format an external harddrive. I just bought a 300gig harddrive and bought the external casing separate. Very affordable and cool yeh. Now I need to format the harddrive and i need detailed instructions since i'm not very computer literate. Oh yeh i have a powerbook 12 inch 1.33ghz 256ram. Thanks :D
 
Highlight the drive to format it, select HFS Extended and format it that way.
 
No. If you want it to work with a PC, format it on the PC as Fat32, and the Mac will recognize it.
 
- there are several obvious reasons why someone would like to have the possibility to use an EXTERNAL(portable!) harddrive with both mac and windows, although he might not own a win-PC himself..



ale.x
 
my mate has a windows xp comp, he says he can format it in ntsf since fat32 is old news now. Is this possible, will this work at all? or does it have to be fat32
 
joestriker said:
my mate has a windows xp comp, he says he can format it in ntsf since fat32 is old news now. Is this possible, will this work at all? or does it have to be fat32

Don't format as NTFS, you won't be able to save files to the drive.
Here's some info for creating a FAT32 partition, which will then allow full use on both a Mac or a PC. Sorry, I haven't cleaned it up. It's a little confusing, but uses both disk Utility to get some info, and then terminal to do the deed:
MS-DOS fat32 format with Disk Utility

Go into Disk Utility, right-click on the drive you want to format, and select Info. See what the disk identifier is (for example, "disk3"). Click on the Partition tab, and remove remove all the partitions for that drive (careful here, you can't hose your boot partition, but any others are open season).

Now to the terminal and type:
fdisk -i -a dos /dev/rdisk# (where # is the disk number you got above)

That creates a new partition, full size (up to 127GB), with auto sector sizes and such. Now you need to format it:
newfs_msdos -F 32 /dev/rdisk#s1
You can optionally specify a volume name with:
newfs_msdos -F 32 -v volname /dev/rdisk#s1
- - volname is whatever name you want in DOS 8.3 rules.

Note that the capital "F" is critical. Lower-case "f" means something else.
You can always use fdisk /dev/rdisk# without anything else to see what the current info is for that disk.
 
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