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Subject: Re: A permissions puzzle
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From: Eliot Moss <moss AT cs DOT umass DOT edu>
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Date: Mon, 23 Dec 2019 09:35:28 -0500
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On 12/23/2019 3:55 AM, Brian Inglis wrote:> On 2019-12-22 20:16, Eliot Moss wrote:
 >>
 >> So can a \\?\Volume{...} guid name for a volume be used in Cygwin's fstab?
 >> What would the syntax be like for that?
 >
 > Each entry must be on a single line:
 >
 > #|/bin/cygwin1.dll
 > # /etc/fstab - https://cygwin.com/cygwin-ug-net/using.html#mount-table
 > #                                                               dump	dump
 > # mixed path	 file		vfstype		mntops		freq	passno
 > #C:/cygwin64	 /		ntfs		auto,binary	1	1
 > #C:/cygwin64/bin /usr/bin	ntfs		auto,binary	1	1
 > #C:/cygwin64/lib /usr/lib	ntfs		auto,binary	1	1
 > #C:		 /cygdrive/c	ntfs		auto,binary,posix=0,noumount,	
 > 							user	1	1
 > #none		 /cygdrive	cygdrive	auto,binary,posix=0,	
 > 							user	0	0
 > #none		 /tmp		usertemp	binary,posix=0	0	0
 > //?/Volume{...}	 /media/name	fat|ntfs	[no]acl*,binary*|text,bind,dos,
 > 						[cyg|not]exec,ihash,override,
 > 						posix=0|1*,sparse,[no]umount*,
 > 						[no*]user	0	0
 > #						defaults flagged *

Thank you, Brian.  I have tried this:

none /cygdrive cygdrive binary,posix=0,user 0 0
//?/Volume{13cb9114-4267-4a7b-8c14-2cbc4bbeecad} /media/backup ntfs noacl,binary,posix=0,user 0 0

The uid is what is shown in /proc/sys/GLOBAL??/Volume{...} and /media exists.

mount -a says:  mount: /media/backup: Invalid argument

I tried also creating an empty directory /media/backup, with the same result.

The drive sill mounts automatically on /cygdrive/d (as I would expect).

Thoughts?

Eliot

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