I wish it was that simple. Get Info, Sharing & Permissions just shows "You can only read". No check boxes.
Originally Posted by keyoptions
Thanks for having a go anyway keyoptions.
Actually, there's more to this than I originally laid out. The external hard drive in question is not actually the drive I had connected to the eMac (that drive is now my Time Machine) it just contains the data from that drive (I forgot that bit).
What I've (stupidly) done is copy the contents from a FAT32 formatted drive to a Windows NTFS formatted drive.
Here's the info from Disk Utility:
There's lots of No's that I don't like the look of. I should have formatted this f@#$%er before copying stuff over (I used a Windoze laptop to do the transfer so NTFS wasn't a problem).
Name : Iomega HDD
Type : Volume
Disk Identifier : disk2s1
Mount Point : /Volumes/Iomega HDD
File System : Windows NT File System (NTFS)
Connection Bus : USB
Device Tree : /PCI0@0/EHC1@4,1/@3:1
Writable : No
Capacity : 931.5 GB (1,000,202,241,024 Bytes)
Free Space : 701.9 GB (753,630,699,520 Bytes)
Used : 229.6 GB (246,571,540,480 Bytes)
Number of Files : 2,449
Number of Folders : 0
Owners Enabled : No
Can Turn Owners Off : No
Can Be Formatted : No
Bootable : No
Supports Journaling : No
Journaled : No
Disk Number : 2
Partition Number : 1
Google pointed me to a thing call MacFUSE (link 1, link 2, link 3), which seems to be the answer but also a major PITA.
I think I need to borrow another external drive to dump the stuff off the Iomega on to and then format the Iomega to something usable (probably FAT32 so I can share it with my other computers) and then transfer it back. Unless there's some kind of magic that reformats a drive without erasing the data on it
P.S. The previous uhcg flag solution did not solve the problem.