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Date:      Wed, 08 Feb 2006 23:05:21 +0100
From:      martinko <martinkov@pobox.sk>
To:        freebsd-stable@freebsd.org
Subject:   Re: Trouble with mounting USB stick as user
Message-ID:  <43EA6B21.8040307@pobox.sk>
In-Reply-To: <Pine.LNX.4.62.0602081331510.13164@haller.snl.salk.edu>
References:  <dsdfe8$1sd$1@sea.gmane.org>	<200602082003.k18K3ZQJ077077@lurza.secnetix.de>	<dsdnob$4q4$1@sea.gmane.org> <Pine.LNX.4.62.0602081331510.13164@haller.snl.salk.edu>

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Jorge Aldana wrote:
> Yea, your permissions are off, need rw on them as well.
> 
> I caught this thread and the 3 steps do it nicely! You may need to
> logoff and back on to get the group change going for your username
> though, well I did.
> 
> I caught the devfs setting but does anyone have one already set? It
> should go in the rc.conf under /etc (I just want a ruleset or need one
> if one is readily avaialble)
> 
>> revfs_system_ruleset="mydevfsrules"
> 
> 
> 
> Jorge
> 
> On Wed, 8 Feb 2006, martinko wrote:
> 
>> Oliver Fromme wrote:
>>
>>> martinko <martinkov@pobox.sk> wrote:
>>> > Oliver Fromme wrote:
>>> >> martinko wrote:
>>> >>> Oliver Fromme wrote:
>>> >>>> To enable user mounts, there are three conditions:
>>> >>>> 1.  sysctl vfs.usermount=1
>>> >>>> 2.  The user must have read+write permission on the device
>>> >>>>     which is to be mounted.  This is usually accomplished
>>> >>>>     by creating a special group for this device.
>>> >>>> 3.  The user must _own_ the mountpoint (r/w permission is
>>> >>>>     not sufficient).
>>> >>>
>>> >>> [...]
>>> >>> $ ll /dev/ad0
>>> >>> crw-r-----  1 root  operator    0,  96 Feb  8 18:27 /dev/ad0
>>> >>
>>> >> Condition #2 isn't met:  The device must be "rw" for for
>>> >> the user (in this case for the operator group).  Note
>>> >> that "r" is not sufficient, even for read-only mounts.
>>> >
>>> > sure. but why did it mount /usr/home/mato/mnt/dos then ??
>>>
>>> Maybe /dev/ad0s1 had different permissions?
>>>
>>
>> $ ls -la /dev/ad0*
>> crw-r-----  1 root  operator    0,  96 Feb  8 18:27 /dev/ad0
>> crw-r-----  1 root  operator    0,  97 Feb  8 18:27 /dev/ad0s1
>> crw-r-----  1 root  operator    0,  98 Feb  8 18:27 /dev/ad0s2
>> crw-r-----  1 root  operator    0,  99 Feb  8 18:27 /dev/ad0s3
>> crw-r-----  1 root  operator    0, 101 Feb  8 19:27 /dev/ad0s3a
>> crw-r-----  1 root  operator    0, 102 Feb  8 19:27 /dev/ad0s3b
>> crw-r-----  1 root  operator    0, 103 Feb  8 18:27 /dev/ad0s3c
>> crw-r-----  1 root  operator    0, 104 Feb  8 19:27 /dev/ad0s3d
>> crw-r-----  1 root  operator    0, 105 Feb  8 19:27 /dev/ad0s3e
>> crw-r-----  1 root  operator    0, 106 Feb  8 19:27 /dev/ad0s3f
>> crw-r-----  1 root  operator    0, 100 Feb  8 18:27 /dev/ad0s4
>> crw-r-----  1 root  operator    0, 107 Feb  8 18:27 /dev/ad0s5
>> crw-r-----  1 root  operator    0, 108 Feb  8 18:27 /dev/ad0s6
>> crw-r-----  1 root  operator    0, 109 Feb  8 18:27 /dev/ad0s7
>> crw-r-----  1 root  operator    0, 110 Feb  8 18:27 /dev/ad0s8
>>


ok, once again and with the righteous permissions..


[mb-aw1n-bsd][mato][~]
$ id
uid=1001(mato) gid=1001(mato) groups=1001(mato), 0(wheel), 5(operator)
[mb-aw1n-bsd][mato][~]
$ sysctl vfs.usermount
vfs.usermount: 1
[mb-aw1n-bsd][mato][~]
$ ll mnt/
total 10
drwxr-x---  2 mato  mato  512 Dec 11 20:44 cdrom
drwxr-x---  2 mato  mato  512 Dec 11 20:44 dos
drwxr-x---  2 mato  mato  512 Dec 11 20:44 fat
drwxr-x---  2 mato  mato  512 Dec 11 20:44 lin
drwxr-x---  2 mato  mato  512 Dec 11 20:44 win
[mb-aw1n-bsd][mato][~]
$ grep "/mato" /etc/fstab
/dev/acd0       /usr/home/mato/mnt/cdrom        cd9660  ro,noauto
0      0
/dev/ad0s1      /usr/home/mato/mnt/dos  msdosfs ro,noauto       0       0
/dev/ad0s5      /usr/home/mato/mnt/fat  msdosfs
ro,noatime,noauto,-Lsk_SK.ISO8859-2     0       0
/dev/ad0s6      /usr/home/mato/mnt/win  ntfs    ro,noauto       0       0
/dev/ad0s7      /usr/home/mato/mnt/lin  ext2fs  ro,noauto       0       0
[mb-aw1n-bsd][mato][~]
$ ll /dev/ad0*
crw-rw----  1 root  operator    0,  96 Feb  8 22:50 /dev/ad0
crw-rw----  1 root  operator    0,  97 Feb  8 22:50 /dev/ad0s1
crw-rw----  1 root  operator    0,  98 Feb  8 22:50 /dev/ad0s2
crw-rw----  1 root  operator    0,  99 Feb  8 22:50 /dev/ad0s3
crw-rw----  1 root  operator    0, 101 Feb  8 23:50 /dev/ad0s3a
crw-rw----  1 root  operator    0, 102 Feb  8 23:50 /dev/ad0s3b
crw-rw----  1 root  operator    0, 103 Feb  8 22:50 /dev/ad0s3c
crw-rw----  1 root  operator    0, 104 Feb  8 23:50 /dev/ad0s3d
crw-rw----  1 root  operator    0, 105 Feb  8 23:50 /dev/ad0s3e
crw-rw----  1 root  operator    0, 106 Feb  8 23:50 /dev/ad0s3f
crw-rw----  1 root  operator    0, 100 Feb  8 22:50 /dev/ad0s4
crw-rw----  1 root  operator    0, 107 Feb  8 22:50 /dev/ad0s5
crw-rw----  1 root  operator    0, 108 Feb  8 22:50 /dev/ad0s6
crw-rw----  1 root  operator    0, 109 Feb  8 22:50 /dev/ad0s7
crw-rw----  1 root  operator    0, 110 Feb  8 22:50 /dev/ad0s8
[mb-aw1n-bsd][mato][~]
$ mount /usr/home/mato/mnt/win/
mount_ntfs: /dev/ad0s6: Operation not permitted
[mb-aw1n-bsd][mato][~]
$ mount /usr/home/mato/mnt/lin/
mount_ext2fs: /dev/ad0s7: Operation not permitted
[mb-aw1n-bsd][mato][~]
$ mount /usr/home/mato/mnt/fat/
mount_msdosfs: cannot find or load "msdosfs_iconv" kernel module
mount_msdosfs: msdosfs_iconv: Operation not permitted
[mb-aw1n-bsd][mato][~]
$ mount /usr/home/mato/mnt/dos/
[mb-aw1n-bsd][mato][~]
$


as you can see, the results are the same as before -- only the last
mount point got mounted. (why?)
permissions were set via /etc/devfs.conf and system rebooted:
perm    ad0*    0660

any hint or idea what might be wrong pls ??

cheers,

martin




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