Mail Archives: cygwin/2001/11/14/14:38:35
Double checking, I realize this problem is currently manifest in version
1.3.4
Unless 1.3.5 is actually expected to address this problem, I'm reluctant to
touch anything, for fear of losing what tape functions I still cling to.
Tim Scoggins wrote:
> I posted this problem once, but I have now reproduced it several times,
> so I hope I can provide more helpful details.
>
> One three occasions, after various operations involving SCSI tape
> drives, particularly AIT2 drives, a situation was created where any
> mount command, including "mount" by itself, caused the bash window to
> close without warning.
>
> In order to fix the problem, I tried:
> 1) Uninstalling all cygwin software.
> 2) Removing all Cygnus Solutions entries from the registry under
> HKEY_LOCAL_MACHINE and HKEY_CURRENT_USER for all users.
> 3) Reinstalling cygwin.
>
> This did not work. I had to reinstall the operating system to get tape
> functions back in cygwin. I have created the problem once under Windows
> NT 4 SP5 and twice under Win2k SP2. In all three cases, Windows Backup
> was still able to use the tape drives.
>
> Details Case 1:
>
> Windows NT 4 SP5, cygwin 1.3.2
>
> For some time I had been using cygwin with an HP DDS-3 and an Exabyte
> 8mm. Then I swapped out both tape drives, replacing them with a Sony
> DDS-3 and a Sony AIT2. I did not "umount" before I changed the SCSI
> configuration. Any tape operation after that caused cygwin to wink
> out. I did not get tape functions back in cygwin until I did a clean
> install with Win2k (I moved to Win2k for other reasons).
>
> Details Case 2:
>
> Win2k SP2, cygwin 1.3.3
>
> I did a clean install to Win2k, installing the Sony DDS-3 and going back
> to the Exabyte 8mm (I had to give back the borrowed AIT2). Everything
> was fine again until I again swapped the 8mm for an AIT2 (I bought my
> own drive). This time I was careful to "umount" the drives before I
> changed the configuration. This did not help. Once again tape
> functions caused cygwin bash window to close without warning. Again I
> tried a clean install of cygwin (unintall, clean registry), but that did
> not help. I reinstalled Win2k, this time with the AIT2 drive installed
> from the beginning.
>
> Details Case 3:
>
> Win2k SP2, cygwin 1.3.3
>
> Now I have Win2k and the AIT2 tape drive installed when the operating
> system is loaded. This time I was trying various operations with my new
> Sony AIT2 drive. The AIT2 worked, except in tape to tape copying. I
> could do disk to tape reads and writes with dd and with programs I wrote
> that use Win32 API. But, copying DDS-3 tape to AIT2 tape caused the
> AIT2 to hang, requiring power off/on to free. I got help on this
> problem from tech support at NovaSTOR (I could also hang the AIT2 with
> their TapeCopy program). They had me set "Sync Transfer Rate" and "Send
> Start Command" (I think) at startup in the SCSI configuration to values
> appropriate for each tape drive. They also had me update my SCSI
> drivers. This fixed the tape hanging for NovaSTOR, my programs, and
> "dd" in cygwin. BUT, "mount" by itself again crashes the bash shell.
> Yes, I still have tape function; dd and mt work, but "mount" by itself
> causes cygwin bash to wink out.
>
> I am afraid to "umount" for fear I will be forced to do another Windows
> install. As I say, tapes are working, including AIT2, but if I need to
> change or add a tape drive, I fear the worst.
>
> (Also, I turn off Removable Storage Manager in Win2k so my Win32 API
> functions will work.)
>
> I will be grateful for any guidance. I am not a developer, but I did
> trying to find source code for dd and mount from the src/winsup web
> site. But that CVS stuff is way over my head.
>
> Tim Scoggins
> Applied Research Laboratories
> The University of Texas at Austin
> 512 835 3596
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