usb not writable as user

smcsw2000 · 2014-03-12 23:17:01

When using Dolphin in KDE when I plug a usb flash drive in it auto mounts and is readable. When I try to write to it, I get access denied. could not write to /media/usb. I can copy from it and read from it. I used to be able to rread and write to it, but it has been a few months since I tried copying to the usb. The permissions are for root.
I tried chown -R username /media/usb with no luck.
I tried chmod -R 777 /media/usb and no go.
I tried the line in usb storage wiki for /etc/fstab /dev/sda1 /media/usb vfat user,noauto,noatime,flush 0 0 and that did not work.
The only thing I can find that I haven't tried is the udev rules, but I am not sure how and which rule to try. Did I miss anything or am I off on something?

Trilby · 2014-03-12 23:18:39

What is the filesystem on the usb? If it is ntfs, do you have ntfs-3g installed?

karol · 2014-03-13 01:54:25

Are you sure your pendrive drive is /dev/sda1?

/dev/sda1 /media/usb vfat user,noauto,noatime,flush 0 0

What's the output of 'mount | grep /dev/sd' after you mount that pendrive?

ewaller · 2014-03-13 03:06:09

karol wrote:

Are you sure your pendrive drive is /dev/sda1?
/dev/sda1 /media/usb vfat user,noauto,noatime,flush 0 0
What's the output of 'mount | grep /dev/sd' after you mount that pendrive?

... And what is the output of dmesg | tail -20 immediately after you attach the drive to the system?

smcsw2000 · 2014-03-14 02:30:13

If it is ntfs, do you have ntfs-3g installed?

$ pacman -Q ntfs-3g
ntfs-3g 2014.2.15-1

What's the output of 'mount | grep /dev/sd' after you mount that pendrive?

$ mount | grep /dev/sd
/dev/sdb3 on / type ext4 (rw,relatime,data=ordered)
/dev/sdb4 on /home type ext4 (rw,relatime,data=ordered)
/dev/sdb1 on /boot type ext2 (rw,relatime)
/dev/sdc3 on /backups type ext3 (rw,relatime,data=ordered)
/dev/sdc1 on /storage type ext3 (rw,relatime,data=ordered)
/dev/sdc2 on /pictures type ext3 (rw,relatime,data=ordered)
/dev/sdh1 on /media/usb type vfat (rw,nosuid,nodev,noexec,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,flush,errors=remount-ro,user)

rechecking /etc/fstab I find I did a typo this is the fstab

/dev/sdh1		/media/usb  vfat    user,noauto,noatime,flush	   0	  0

what is the output of dmesg | tail -20 immediately after you attach the drive to the system?

$ dmesg | tail -20
[37990.624558] fuse init (API version 7.22)
[43243.442094] r8169 0000:03:00.0 eth0: link down
[43246.751162] r8169 0000:03:00.0 eth0: link up
[43251.440460] r8169 0000:03:00.0 eth0: link down
[43281.271548] r8169 0000:03:00.0 eth0: link up
[93493.274201] usb 1-2: new high-speed USB device number 3 using ehci-pci
[93493.408677] usb-storage 1-2:1.0: USB Mass Storage device detected
[93493.408890] scsi5 : usb-storage 1-2:1.0
[93494.412313] scsi 5:0:0:0: Direct-Access     Kingston DataTraveler 2.0 PMAP PQ: 0 ANSI: 0 CCS
[93494.988986] sd 5:0:0:0: [sdh] 3919872 512-byte logical blocks: (2.00 GB/1.86 GiB)
[93494.989728] sd 5:0:0:0: [sdh] Write Protect is off
[93494.989740] sd 5:0:0:0: [sdh] Mode Sense: 23 00 00 00
[93494.990475] sd 5:0:0:0: [sdh] No Caching mode page found
[93494.990486] sd 5:0:0:0: [sdh] Assuming drive cache: write through
[93494.994477] sd 5:0:0:0: [sdh] No Caching mode page found
[93494.994487] sd 5:0:0:0: [sdh] Assuming drive cache: write through
[93494.995112]  sdh: sdh1
[93494.998589] sd 5:0:0:0: [sdh] No Caching mode page found
[93494.998595] sd 5:0:0:0: [sdh] Assuming drive cache: write through
[93494.998604] sd 5:0:0:0: [sdh] Attached SCSI removable disk

ewaller · 2014-03-14 02:58:00

So, where are we at? The drive is enumerated as /dev/sdh. It has a partition /dev/sdh1 that is mounting at /media/usb and is read/write.
Is this working yet? Can root write? If not we need to look at the umask.

man mount wrote:

Mount options for ntfs
iocharset=name
Character set to use when returning file names. Unlike VFAT,
NTFS suppresses names that contain nonconvertible characters.
Deprecated.
nls=name
New name for the option earlier called iocharset.
utf8 Use UTF-8 for converting file names.
uni_xlate={0|1|2}
For 0 (or `no' or `false'), do not use escape sequences for
unknown Unicode characters. For 1 (or `yes' or `true') or 2,
use vfat-style 4-byte escape sequences starting with ":". Here 2
give a little-endian encoding and 1 a byteswapped bigendian
encoding.
posix=[0|1]
If enabled (posix=1), the filesystem distinguishes between upper
and lower case. The 8.3 alias names are presented as hard links
instead of being suppressed. This option is obsolete.
uid=value, gid=value and umask=value
Set the file permission on the filesystem. The umask value is
given in octal. By default, the files are owned by root and not
readable by somebody else.

smcsw2000 · 2014-03-14 22:23:02

using Dolphin in KDE I cen read and copy from the usb but cannot write.
using terminal as user I can read and copy from the usb but cannot write.
using terminal as root I can read, write copy to and from the usb and delete.

karol · 2014-03-14 22:54:46

What do you mean by 'cannot write'? What error do you get?

smcsw2000 · 2014-03-15 23:48:40

When I try to copy files in KDE Dolphin i get

Access Denied. Could not write to '/media/usb'

When I try writing in terminal as non root user I get

 cp: cannot create regular file ‘/media/usb/katie.jpeg’: Permission denied

alexftw · 2014-03-16 04:13:27

I get a similar error with a vfat partition.

rm: remove write-protected regular file 'testfile'? y
rm: cannot remove 'testfile': Permission denied

partition in /etc/fstab:

/dev/sda2		/media/shared		vfat		auto,user,exec,rw,async		0 0

Root can read/write, users can only read.

karol · 2014-03-16 04:30:18

@smcsw2000
What's the output of

ls -l /media/usb

@alexftw
What's the output of

ls -l /media/shared

alexftw · 2014-03-16 04:34:26

karol wrote:

What's the output of
ls -l /media/shared

[alexander@alexander-p6634 ~]$ LANG=C ls -l /media/shared/
total 649536
drwxr-xr-x  3 root root     32768 Feb 15 21:39 $RECYCLE.BIN
drwxr-xr-x 17 root root     32768 Mar 15 23:10 Bilder
drwxr-xr-x  7 root root     32768 Mar 13 22:11 Desktop
drwxr-xr-x  5 root root     32768 Mar 13 22:06 Dokumente
drwxr-xr-x 23 root root     32768 Mar 16 05:32 Downloads
drwxr-xr-x 13 root root     32768 Mar 16 05:32 Meine Dateien
drwxr-xr-x 48 root root     32768 Mar 16 05:32 Musik
drwxr-xr-x  3 root root     32768 Feb 16 04:30 SB3_CEE-EN
-rwxr-xr-x  1 root root      9667 Mar  1 15:42 Save01.lsd
drwxr-xr-x  3 root root     32768 Mar 13 22:20 Scripts
-rwxr-xr-x  1 root root 610701712 Mar  9 20:53 V20B_00.kdz
drwxr-xr-x  5 root root     32768 Feb 22 17:38 Videos
drwxr-xr-x 11 root root     32768 Mar 13 22:12 ardourprojects
-rwxr-xr-x  1 root root     10961 Feb 22 17:35 bookmarks-2014-02-22.json
-rwxr-xr-x  1 root root     12729 Mar 13 22:01 bookmarks-2014-03-13.json
-rwxr-xr-x  1 root root   3852114 Mar  9 20:58 kdz-update.rar
-rwxr-xr-x  1 root root        58 Mar  9 21:00 link.txt
-rwxr-xr-x  1 root root    904704 Dec  1  2006 msdia80.dll
-rwxr-xr-x  1 root root       438 Feb 20 18:32 taiyou_todo
-rwxr-xr-x  1 root root       439 Feb 15 15:34 taiyou_todo~
drwxr-xr-x  2 root root     32768 Mar  2 19:58 wineprefixes
-rwxr-xr-x  1 root root  48997066 Apr  3  2008 yumenikki0.10eng.exe

Last edited by alexftw (2014-03-16 11:52:53)

karol · 2014-03-16 04:38:00

And the output of

ls -l /media

alexftw · 2014-03-16 04:39:34

total 32
drwxr-xr-x 17 root root 32768 Mar 16 05:32 shared

EDIT: Just found out the solution. Source: fstab - ArchWiki

/dev/sda2		/media/shared	vfat		user,rw,umask=111,dmask=000	0 0

Last edited by alexftw (2014-03-17 21:48:16)

smcsw2000 · 2014-03-16 22:59:43

the ouplut of ls -l /media/usb

 $ ls -l /media/usb
total 20768
-rwxr-xr-x 1 root root   92905 Mar 13  2010 036-sunset-and-waves.jpg
-rwxr-xr-x 1 root root   62144 Mar 12  2010 1_fish.jpg
-rwxr-xr-x 1 root root   89810 Mar 13  2010 7933-flowers-angostura-argentina.jpg
-rwxr-xr-x 1 root root    8887 Sep 14  2006 american eagle.gif
-rwxr-xr-x 1 root root  135747 Nov 21  2003 andy and linda1.jpg
-rwxr-xr-x 1 root root   45697 Mar 13  2010 AscdaHawaiianMonarch2.jpg
-rwxr-xr-x 1 root root   43645 Mar 13  2010 AscdaHawaiianMonarch.jpg
-rwxr-xr-x 1 root root   66878 Mar 15  2010 beautiful_flower205b.jpg
-rwxr-xr-x 1 root root   67413 Mar 15  2010 beautiful_flower205p.jpg
-rwxr-xr-x 1 root root   50869 Mar 13  2010 birdofparadise.jpg
-rwxr-xr-x 1 root root  135757 Mar 14  2010 cymbidium-orchid-wallpaper.jpg
-rwxr-xr-x 1 root root   23335 Mar 13  2010 dancing orchids.jpg
-rwxr-xr-x 1 root root  120998 Mar 14  2010 flower_photos08.jpg
-rwxr-xr-x 1 root root   57295 Mar 13  2010 flowers_067yellow rose.jpg
-rwxr-xr-x 1 root root   79618 Mar 13  2010 flowers_077.jpg
-rwxr-xr-x 1 root root   48514 Mar 15  2010 flower_wreath horse.jpg
-rwxr-xr-x 1 root root   26855 Mar 12  2010 fushia plant.jpg
-rwxr-xr-x 1 root root   98850 Mar 13  2010 HawaiianFlowers43.jpg
-rwxr-xr-x 1 root root   55352 Mar 13  2010 hawaiianhybiscus.jpg
-rwxr-xr-x 1 root root  149434 Mar 13  2010 Hawaiian-Marriage-Blessing.jpg
-rwxr-xr-x 1 root root   95468 Mar 13  2010 Hawaiian_Plumeria2.jpg
-rwxr-xr-x 1 root root 2087071 Dec 28  2008 Katie in her china dress.JPG
-rwxr-xr-x 1 root root  175127 Mar 14  2010 lilac4.jpg
-rwxr-xr-x 1 root root   54771 Mar 15  2010 NatureInLove08.jpg

tried alexftw solution with fstab by inserting in fstab

 /dev/sdh1		/media/usb  vfat    user,rw,umask=022,dmask=000	   0	  0

and still have the same problem, nothing changed

Arch Linux

#1 2014-03-12 23:17:01

usb not writable as user

#2 2014-03-12 23:18:39

Re: usb not writable as user

#3 2014-03-13 01:54:25

Re: usb not writable as user

#4 2014-03-13 03:06:09

Re: usb not writable as user

#5 2014-03-14 02:30:13

Re: usb not writable as user

#6 2014-03-14 02:58:00

Re: usb not writable as user

#7 2014-03-14 22:23:02

Re: usb not writable as user

#8 2014-03-14 22:54:46

Re: usb not writable as user

#9 2014-03-15 23:48:40

Re: usb not writable as user

#10 2014-03-16 04:13:27

Re: usb not writable as user

#11 2014-03-16 04:30:18

Re: usb not writable as user

#12 2014-03-16 04:34:26

Re: usb not writable as user

#13 2014-03-16 04:38:00

Re: usb not writable as user

#14 2014-03-16 04:39:34

Re: usb not writable as user

#15 2014-03-16 22:59:43

Re: usb not writable as user

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