I’m having a rather bizarre problem with USB using the QNX 4.25 2011 release.
- Boot the machine from hard drive (PATA).
- Plug in a flash drive on a USB port.
- Copy the hard drive to the flash drive.
At this point, everything is fine. chkfsys and dcheck both say the flash drive is okay.
- Reboot, this time with a floppy.
- Copy the flash drive contents back to a hard drive.
PROBLEM! At this point, some file are corrupted on the hard drive. Even stranger, some files are corrupted on the flash drive!
a) I’m being careful not to overwrite .inodes or .bitmap in either direction.
b) We’ve tried numerous hard drives and several different flash drives.
c) Yes, the boot floppy is not PRECISELY the same as the hard drive. However, I also tried it once booting from a hard drive, and copying from the USB stick to a secondary hard drive.
d) On a related note, copying from primary to secondary works fine.
e) I have so far only tested this on one machine, so it could be purely hardware related. I’m working on getting another test machine up and going.
So, has anybody else run in to this issue?
Sage Automation, Inc.