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Date: Fri, 2 Nov 2012 09:41:40 -0700
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Subject: Domain User getting "Permission Denied" for anything outside of /home/<user>/
From: Cameron Gunnin <imisnew2 AT gmail DOT com>
To: cygwin AT cygwin DOT com
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Hi,

I've been struggling with this for the past week to no avail.  As the
title suggests, if I am logged in under a user that is not the user
who installed Cygwin (regardless of the user's windows permissions),
then I cannot modify near anything outside of /home/<user>/.  Here's
what I'm trying to get working.

1a) Install Cygwin as a Local Administrator.  Run "mkpasswd -l >
/etc/passwd" and "mkgroup -l > /etc/group"
OR (I would prefer 1a, but 1b is acceptable as well)
1b) Install Cygwin as Domain Administrator.  Run "mkpasswd -d >
/etc/passwd" and "mkgroup -d > /etc/group"

2) Login as Domain User (has administrative privileges on local
machine AND can access the AD).
NOTE: At this point, I get the message:

Your group is currently "mkpasswd".  This indicates that your
gid is not in /etc/group and your uid is not in /etc/passwd.

The /etc/passwd (and possibly /etc/group) files should be rebuilt.
See the man pages for mkpasswd and mkgroup then, for example, run

mkpasswd -l [-d] > /etc/passwd
mkgroup -l [-d] > /etc/group

Note that the -d switch is necessary for domain users.

3) Attempt to run "mkpasswd -d >> /etc/passwd" and "mkgroup -d >> /etc/group"
However, I get the message:

$ mkpasswd -d >> /etc/passwd
-sh: /etc/passwd: Permission Denied

If I run "ls -al /" then I get an odd (but expected, I think) list of
permissions on several root folders.
eg. drwxr-xr-x+ ???????? mkpasswd 0 Oct 31 14:16 etc

I cannot even touch a file inside the directories with ???????? listed
as their user.

$ touch /etc/myfile
touch: cannot touch 'myfile': PermissionDenied

HOWEVER, I can touch/edit files under the windows file system.
$ touch /cygdrive/c/myfile
$ echo "data" >> /cygdrive/c/myfile
$ echo "data" >> /cygdrive/c/<existing file with ???????? user>

Any help is appreciated, as I've been stuck on this for just over a week now.

Thanks.

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