QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
| Title |
'Cannot attach prefix -/dos: file exists' error when running Dosfsys |
| Ref. No. |
QNX.000005429 |
| Category(ies) |
Utilities |
| Issue |
We have an extended partition on our hard drive and it contains one DOS partition. Invoking the DOS filesystem driver, Dosfsys (Dosfsys c=/dev/hd0.0t6.1 or just Dosfsys &) command to try to load the partition, it gives the following error:
Cannot attach prefix -/dos: file exists.
|
| Solution |
This error occurs when Dosfsys is already running and an attempt is being made to attach to a drive that has already been mapped.
For example:
-run 'Dosfsys &', which replies 'QNX device '/dev/fd0' adopted as DOS drive '/dos/a''
-then try to run 'Dosfsys a=/dev/fd0'
This will result in 'Cannot attach prefix -/dos: file exists.' error
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