network installation failed, new diagnostics

Thomas Wolff
Sun Jan 15 22:49:00 GMT 2017

I have some new insights; first, I tried with a range of older versions 
of setup.exe (from the cygwin time machine) but all failed, so its not a 
regression as I had speculated.

Then I tried to run setup.exe without elevation, by elevating before 
(running mintty as adminstrator). So I noted (and could have checked 
this earlier...) that the involved network mounts were not fully 

mount (unelevated):
L:/TGI/cygwin7 on / type ntfs (binary,auto)
L: on /cygdrive/l type ntfs (binary,posix=0,user,noumount,auto)

mount (elevated):
// on / type ntfs (binary,auto)

After fixing the mount:
net use L: '\\\Labormaterial'

setup.exe works as expected.

Not being familiar with details of Windows permission stuff and 
user-specific mounts myself, does this help to analyse and maybe even 
fix the situation?

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