Unable to automatically map a drive letter at login
Larry Hall (Cygwin)
reply-to-list-only-lh@cygwin.com
Tue Aug 29 18:40:00 GMT 2006
Grant Miller wrote:
> On 8/29/06, Larry Hall (Cygwin) <reply-to-list-only-lh AT cygwin DOT com> wrote:
<http://cygwin.com/acronyms/#PCYMTNQREAIYR>. Thanks.
>> Grant Miller wrote:
>> > My apologies if this question has been asked before. I've spent a bit
>> > of time searching through the mailing lists looking to see if someone
>> > else has run into this issue. I've seen similar issues, but no real
>> > solutions provided.
>> >
>> > Okay, here we go.
>> >
>> > I have 3 Windows systems (XP Pro, 2003 Server, XP Pro 64bit) that all
>> > have Cygwin installed on them. Running uname -a returns:
>> >
>> > CYGWIN_NT-5.2 SMTWIN2 1.5.21(0.156/4/2) 2006-07-30 14:21 i686 Cygwin
>> >
>> > I have ssh installed on these systems and I'm running sshd on them
>> as well.
>> >
>> > I have a Samba server that's the PDC for our little group of Windows
>> > systems. It's running on a Solaris 8 box. We're running Samba v2.2.8
>> > (I know, it's old).
>> >
>> > On the Windows systems, I setup users in /etc/passwd using "mkpasswd
>> > -d DOMAIN -p /home -u username >> /etc/passwd". I edited
>> > /etc/password and changed the gid for the user from 11021 (some domain
>> > GID) to 545 (local user GID).
>> >
>> > I can ssh into the Windows systems from my desktop (or any other
>> > system in our environment) without any issues. I have setup ssh keys
>> > so that I can ssh into the Windows systems without having to supply my
>> > password. That works great.
>> >
>> > The next thing I wanted to do was to map drives from the Samba server
>> > (particularly my home directory) when I ssh'd into the Windows
>> > systems. I created a simple file called mounts.bat in my cygwin home
>> > dir on the Windows system that has a bunch of "net use" commands in
>> > it:
>> >
>> > net use h: \\sambabox\grant
>> > net use t: \\sambabox\tools
>> >
>> > I call this script from my .bash_profile so it will map these drives
>> > each time I login.
>> >
>> > I ssh into the system using my ssh keys and it's unable to map the
>> drives:
>> >
>> > C:\cygwin\home\grant>net use h: \\sambabox\grant
>> > System error 85 has occurred.
>> >
>> > The local device name is already in use.
>> >
>> >
>> > If I move aside my ~/.ssh/authorized_keys file on the Windows system
>> > and ssh in again (this time providing my password), it's able to map
>> > the drives without any problem.
>> >
>> > At this point, I understand what's happening (99% sure). When I login
>> > without using ssh keys and provide my password, something (Cygwin,
>> > Windows) is caching my password or login credentials and passing those
>> > along to the net use command.
>> >
>> > When I use ssh keys and don't type in my password when logging in,
>> > there's no password or whatever to pass along to net use.
>> >
>> >
>> > The next thing I tried was setting my username and password in the net
>> > use command.
>> >
>> > net use h: \\sambabox\grant mypassword /user:DOMAIN\grant
>> /persistent:no
>> >
>> > I'm running into the same problems above. This command fails when I
>> > try to ssh in using ssh keys, but works when I provide a password.
>> >
>> > grant@envy:~ % ssh windows2
>> > Last login: Tue Aug 29 08:14:24 2006 from envy.apple.com
>> > Fanfare!!!
>> > You are successfully logged in to this server!!!
>> >
>> > C:\cygwin\home\grant>net use h: \\sambabox\grant mypassword
>> > /user:DOMAIN\grant /persistent:no
>> > System error 85 has occurred.
>> >
>> > The local device name is already in use.
>> >
>> > grant@WINDOWS2:~%
>> >
>> > Net use shows that there's nothing else mounted:
>> >
>> > grant@WINDOWS2:~% net use
>> > New connections will not be remembered.
>> >
>> > There are no entries in the list.
>> >
>> >
>> > The end goal for me is to setup these Windows systems so that multiple
>> > people can login and get to their samba-mapped drives. And to have it
>> > work with ssh keys (no passwords) and automatically mapping the drives
>> > at login.
>> >
>> > I have all the pieces working (multiple people logging in, ssh keys),
>> > just not the final piece (ssh keys and automatically mapping drives).
>> >
>> > Sorry for being long-winded, I felt it was necessary to describe how I
>> > have things setup and what I've done so far.
>> >
>> > If anyone can help with this, I would really appreciate it.
>> >
>> >
>>
>> Sounds like the drive you're selecting is already mapped by the server to
>> your user. If you cannot unmap it, try a different (and free) drive
>> letter.
>> Alternately, just omit the drive from your command and then access it
>> with
>> UNC paths or mount it somewhere in your POSIX file system.
>
> I just rebooted one of the Windows systems and tried to SSH in to a
> now clean system (nobody else logged in since booting) with ssh keys
> and a script in my .bash_profile to attach to a drive letter and I got
> the same error (System error 85 has occurred).
>
> I also changed the drive letter the script was trying to map from h:
> to q: (a random drive letter that I haven't used before) and I still
> got the same error.
>
> Omitting the drive letter and using UNC paths works, but it's not
> going to be pretty.
Beauty is in the eye of the beholder. ;-)
--
Larry Hall http://www.rfk.com
RFK Partners, Inc. (508) 893-9779 - RFK Office
216 Dalton Rd. (508) 893-9889 - FAX
Holliston, MA 01746
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