Arch Linux

bakk

Member

Registered: 2014-08-16

Posts: 4

[Solved] Cannot write to any of my USB sticks

Hi,

my problem is that I cannot WRITE to *any* of my usb thumb drives.
Permissions of the mount-directoy are set to my user (777).

dmesg | tail

[33746.787608] scsi14 : usb-storage 1-7:1.0
[33747.788120] scsi 14:0:0:0: Direct-Access                               0.00 PQ: 0 ANSI: 2
[33747.789399] sd 14:0:0:0: [sdc] 15794176 512-byte logical blocks: (8.08 GB/7.53 GiB)
[33747.789946] sd 14:0:0:0: [sdc] Write Protect is off
[33747.789949] sd 14:0:0:0: [sdc] Mode Sense: 00 00 00 00
[33747.790464] sd 14:0:0:0: [sdc] Asking for cache data failed
[33747.790466] sd 14:0:0:0: [sdc] Assuming drive cache: write through
[33748.026967]  sdc: sdc1
[33748.144329] sd 14:0:0:0: [sdc] Attached SCSI removable disk

sudo mount -rw /dev/sdc /run/media/bakk/USB
mount: /dev/sdc ist schreibgeschützt, doch Option -w ist explizit gegeben 

This means that the drive is write-protected, but I used the option -w explicitly.

I found a similar question regarding write-protected drives at askubuntu (http://askubuntu.com/questions/101637/u … ection-off),

but executing   

sudo hdparm -r0 /dev/sdc

did not help.

Also, this is a problem ptresent to all my thumb drives and none of them has something like a hardware writeprotection-button.

edit:

sudo cp -R /run/media/bakk/HDD/xxxxxx.mkv /run/media/bkk/D9F4-D85E/
cp: der Aufruf von stat für „/run/media/abkk/HDD/xxxxxx.mkv“ ist nicht möglich: Keine Berechtigung

Says execution of cp is not possible: no permission.

Thanks for help in advance,

bakk

Last edited by bakk (2014-08-16 22:57:48)

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,722

Re: [Solved] Cannot write to any of my USB sticks

What are the file formats on those disks? NTFS?

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The shortest way to ruin a country is to give power to demagogues.— Dionysius of Halicarnassus
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karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: [Solved] Cannot write to any of my USB sticks

Run

LC_ALL=C <command>

to get the output in English.

bakk

Member

Registered: 2014-08-16

Posts: 4

Re: [Solved] Cannot write to any of my USB sticks

What are the file formats on those disks? NTFS?

I tried different formats (creating new partition table and filesystem is possible for some reason...): ext4, fat32 and NTFS

Thanks for the tip with english output, karol!

sudo cp -R /run/media/bakk/HDD/xxxxxx.mkv /run/media/bkk/D9F4-D85E/
cp: cannot stat '/run/media/bakk/HDD/xxxxx.mkv': Permission denied

LC_ALL=C sudo mount -rw /dev/sdc /run/media/bakk/USB
mount: /dev/sdc is write-protected but explicit `-w' flag given

mounting without -rw flag does work at least (but still the question is what "blocks" the device from giving me (and sudo) write access).

Last edited by bakk (2014-08-16 20:56:44)

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,722

Re: [Solved] Cannot write to any of my USB sticks

[33748.026967]  sdc: sdc1

That device has a partition table.  The file system is on sdc1 (a partition), not sdc (the entire device)
What if you try to mount /dev/sdc1  ?
When you created the file system, was it on sdc, or sdc1?

---

Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
The shortest way to ruin a country is to give power to demagogues.— Dionysius of Halicarnassus
---
How to Ask Questions the Smart Way

rockin turtle

Member

From: Montana, USA

Registered: 2009-10-22

Posts: 227

Re: [Solved] Cannot write to any of my USB sticks

I had problems with my usb thumb drives a few months ago.  I had done a pacman -Syu that morning and had updated to a new kernel, but then had forgotten to reboot.

After I rebooted, the usb problems went away.

I see that when I did pacman -Syu two days ago, I was upgraded to 3.16.1-1.  If you have upgraded sometime in the last 2 days and haven't rebooted since, that may be the cause of your problems.

Edit: text formating

Last edited by rockin turtle (2014-08-16 22:31:36)

bakk

Member

Registered: 2014-08-16

Posts: 4

Re: [Solved] Cannot write to any of my USB sticks

I had problems with my usb thumb drives a few months ago.  I had done a pacman -Syu that morning and had updated to a new kernel, but then had forgotten to reboot.

After I rebooted, the usb problems went away.

I see that when I did pacman -Syu two days ago, I was upgraded to 3.16.1-1.  If you have upgraded sometime in the last 2 days and haven't rebooted since, that may be the cause of your problems.

Edit: text formating

Wow, rebooting actually did the job of solving the problem!

Thank you turtle, ewaller and karol for giving help!