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Re: setup-x86_64: postinstall errors: Package bash 1, Package a2ps 2 and xinit 134

On 7/23/2013 2:46 PM, Corinna Vinschen wrote:
On Jul 23 14:14, Charles Wilson wrote:
I believe your report has to do with error handling when attempting
to modify the All User's Desktop, when you don't actually retain the
elevated permissions necessary to do so.

Is there are way for setup.exe to
delegate its elevated credentials down to /bin/bash, and thence to
mkshortcut.exe? Otherwise, even the *fix* for this bug will just
make it not hang or crash; it will still fail to modify the
all-users start menu/desktop.

Setup does not give up any of it's permissions when starting the
postinstall scripts via CreateProcess.  The scripts have the same
permissions as setup itself, which makes a lot of sense if you think
about it.  Missing permissions to change system dirs should only occur
if setup has been started as non-admin, or if the UAC installer
recognition has been switched off (affects only the 32 bit version).

But even if /bin/bash is elevated, it doesn't follow that any of the tools launched within a script -- via cygwin's fork/exec method -- ALSO retain that elevation.

Does it?


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