Re: tar a filesystem outside of /cygwin

[Christopher Faylor <cgf at redhat dot com>]

On Tue, Dec 12, 2000 at 08:44:33PM +0100, Gerrit P. Haase wrote:
><12 Dec 2000, 13:57 Uhr wars, als Christopher Faylor folgendes schrub:>
>< Re: tar a filesystem outside of /cy >
>
>> On Tue, Dec 12, 2000 at 01:38:35PM -0500, Larry Hall (RFK Partners, Inc) wrote:
>> >At 01:30 PM 12/12/2000, John F. Davis wrote:
>> >>Any particular reason why I can't mount a filesystem in /home?
>> >>i.e., cd /home/davis
>> >>mkdir progs
>> >>mount c:/progs /progs
>> >>The mount says, "mount: progs: Invalid argument
>> >
>> >The directory you mount to must exist where you tell mount it is.  In your
>> >example, unless "/" == "/home/davis", you don't have a progs where you're 
>> >telling mount you do.  That'd be the problem...
>> 
>> Actually, after digging around in the code, it looks like the most
>> likely scenario in which you'd get an "Invalid argument" is if you
>> typed something like:
>> 
>> mount c:/progs progs
>>                ^
>>                no leading slash
>> 
>> If you don't specify an absolute path, mount will complain.
>> 
>> It is not necessary for either of mounts arguments to exist, but they
>> have to be fully qualified windows and unix paths respectively.
>> 
>> So, when I suggested that the directory was already mounted, I was wrong.
>> And, the inference that the directory has to exist is also wrong.
>> 
>> What you want to do in the above scenario is:
>> 
>> mount c:\whereever\home\really\is\home\davis\progs /progs
>> 
>> cgf
>
>Well i see, it is not easy mounting drives:-)
>
>I believe, he wants to mount c:\progs under his home dir.
>So he has to write:
>not: > >>mount c:/progs /progs
>but:
>mount [-b] [-s] [-f] c:/progs /home/davis/progs
>
>But this all is not the explanation, why he got an error of mount, 
>because he should also be able to mount c:\progs to /progs, why not?
>
>It looks like this, if the mount already exists:
>$ mount e:/ftproot /ftproot
>mount: /ftproot: Device or resource busy
>
>And it looks like this, if the dir does not exist where you want to be 
>the mount point:
>$ mount a:/ /hdd/x
>mount: warning - /hdd/x does not exist.
>
>And it looks like this, if...???:
>> >>mount c:/progs /progs
>> >>mount: progs: Invalid argument

I just went to some effort to explain what this error message was about.
It DOES NOT happen when you type "mount c:/progs /progs".  I theorized,
and was later confirmed that the slash was missing from the second mount
argument.

>I got the same error as i tried:
>mount d:\ftproot /ftproot
>which normally displays the help!

In that case you were using backslashes in bash.  For the 100000000000000000000th
time: a backslash is a quoting character in UNIX shells.  If you want to use
it you have to double it up.  So you either have to:

bash$ mount d:\\ftproot /ftproot

or

bash$ mount d:/ftproot /ftproot

cgf

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