So the situation is as follows, I have a 2TB external USB drive partitioned into 2 halves, 1TB each. The first half was used for Time Machine, and the 2nd half a generic ext. USB HD.
Midway through a Time Machine backup the drive ejected itself and I got the "Disk was not ejected correctly" message. This seems to have broken the TM partition as it doesn't appear in Disk Utility, or System Info, or the Desktop.
The 2nd half however does appear on the desktop, and I can check the info and see I have used 250GB etc, but it can't be opened, and won't appear in Disk Utility, or under the USB section of sys info.
It seems then that the 2nd partition is fine (of sorts), however the first half is broken, and stopping the 2nd being read/written etc. I don't mind loosing the Time Machine backups as I have taken a spare on another drive, but I do need the data from the 2nd half.
Does anyone know how I might go about deleting just the broken partition, not using Disk Utility (as its not visible)?
EDIT This is the results of diskutil list, and its disk1s2 that I think is causing the issue.
Timothys-Mini-2:~ timothywilkinson$ diskutil list /dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500.1 GB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_HFS Macintosh HD 428.6 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 4: Apple_HFS Recovery HD 70.5 GB disk0s4 /dev/disk1 (external, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *2.0 TB disk1 1: EFI EFI 209.7 MB disk1s1 2: Apple_HFS 1.0 TB disk1s2 3: Apple_HFS External HD 999.9 GB disk1s3