USB write protected

With the device attached, what is the output of:

lsb_release -a; uname -a; mount

Also, what file system is the storage using (NTFS? Ext4? FAT32?)

Thanks

Hi Andrew,
thanks for your answer.
1 the result of your first question:
Distributor ID: Ubuntu
Description: Ubuntu 12.04.5 LTS
Release: 12.04
Codename: precise
Linux koen-laptop 3.2.0-125-generic-pae #168-Ubuntu SMP Fri Mar 24 17:06:07 UTC 2017 i686 i686 i386 GNU/Linux
/dev/sda5 on / type ext3 (rw,relatime,errors=remount-ro)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
gvfs-fuse-daemon on /home/koen/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=koen)
/dev/sdb1 on /media/B409-756F type vfat (ro,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks)
koen@koen-laptop:~$

2 More info: several usb sticks have the problem. The answer above is with USB ScanDisk 32GB attached.
How can I find file system (NTFS? Ext4? FAT32?)?

Sorry, but I'm not a very experienced user of the terminal window.
Koen

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Verzonden: Zondag 2 april 2017 02:03:51
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

    Status: Open => Needs information

actionparsnip requested more information:
With the device attached, what is the output of:

lsb_release -a; uname -a; mount

Also, what file system is the storage using (NTFS? Ext4? FAT32?)

Thanks

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Seems to be vfat (FAT32). When you unplug the device do you use the safe remove feature in the OS before physically unplugging it?

Yes, I do use the safe remove feature.

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Verzonden: Zondag 2 april 2017 19:09:00
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

    Status: Open => Needs information

actionparsnip requested more information:
Seems to be vfat (FAT32). When you unplug the device do you use the safe
remove feature in the OS before physically unplugging it?

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Then I suggest you perform an fsck on the partition, or if you like you can do this in Windows and check the drive for errors using chkdsk.

I do use the safe remove feature.

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Verzonden: Zondag 2 april 2017 19:09:00
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

    Status: Open => Needs information

actionparsnip requested more information:
Seems to be vfat (FAT32). When you unplug the device do you use the safe
remove feature in the OS before physically unplugging it?

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From your output:

/dev/sdb1 on /media/B409-756F type vfat
(ro,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks)

The beginning of the second line tell "ro" i.e. read-only.

What happens if you try re-mounting that device in read-write mode with the command

mount -o rw,remount /dev/sdb1

or - if you get a response that you are not authorized -
sudo mount -o rw,remount /dev/sdb1

When I try to run an fsck on the partition in Windows 10: it doesn’t work because the USB is whrite protected. When I check in Windows the drive for errors using chkntfs f: I have the message that USB (F-drive in my case) is dirty. Windows suggests to use the /C option. I do not know how to give the right command (chkntfs f /C ; chkntfs F /C = not valid drive specifications. chkntfs /f C = invalid parameter.

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Verzonden: Maandag 3 april 2017 12:23:26
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

    Status: Answered => Open

You are still having a problem:
I do use the safe remove feature.

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Verzonden: Zondag 2 april 2017 19:09:00
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

    Status: Open => Needs information

actionparsnip requested more information:
Seems to be vfat (FAT32). When you unplug the device do you use the safe
remove feature in the OS before physically unplugging it?

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What drive letter does it get in Windows?

1. according to the Ubuntu output the format is vfat.
I do not think that chkntfs is the right program to run on such device, I assume chkdsk would be correct
(Better ask such questions in a windows forum)

2. As far as I know you need to put a colon after the drive letter
chkntfs f:
or
chdsk f:

Hi Manfred, unfortunately I am back with an other problem.
Here the answer on your questions:

koen@koen-laptop:~$ /dev/sdbl on /media/B409-756F type vfat (ro,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks)bash: syntaxfout nabij onverwacht symbool '('
koen@koen-laptop:~$

koen@koen-laptop:~$ mount -o rw,remount /dev/sdb1
mount: alleen root kan dat doen
koen@koen-laptop:~$

koen@koen-laptop:~$ sudo mount -o rw,remount /dev/sdb1
[sudo] password for koen:
mount: kan /dev/sdb1 niet vinden in /etc/fstab noch in /etc/mtab
koen@koen-laptop:~$
Koen

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Verzonden: Maandag 3 april 2017 15:27:50
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

    Status: Open => Needs information

Manfred Hampl requested more information:
>From your output:

/dev/sdb1 on /media/B409-756F type vfat
(ro,nosuid,nodev,uid=1000,gid=1000,shortname=mixed,dmask=0077,utf8=1,showexec,flush,uhelper=udisks)

The beginning of the second line tell "ro" i.e. read-only.

What happens if you try re-mounting that device in read-write mode with
the command

mount -o rw,remount /dev/sdb1

or - if you get a response that you are not authorized -
sudo mount -o rw,remount /dev/sdb1

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The remount command only works with an already-mounted device.

proceed as follows:

plug the USB stick into the computer
verify with the command
mount
what the device name (probably /dev/sdb1) and the mount status ("ro" or "rw") is
if it is "ro", then try the re-mount command
sudo mount -o rw,remount /dev/sdb1

koen@koen-laptop:~$ sudo mount -o rw,remount /dev/sdb1
[sudo] password for koen:
mount: kan blok-apparaat /dev/sdb1 niet heraankoppelen als lezen-en-schrijven, want is schrijfbeveiligd
koen@koen-laptop:~$

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Verzonden: Maandag 3 april 2017 16:18:05
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

    Status: Open => Answered

Manfred Hampl proposed the following answer:
The remount command only works with an already-mounted device.

proceed as follows:

plug the USB stick into the computer
verify with the command
mount
what the device name (probably /dev/sdb1) and the mount status ("ro" or "rw") is
if it is "ro", then try the re-mount command
sudo mount -o rw,remount /dev/sdb1

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In windows it is F

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Verzonden: Maandag 3 april 2017 15:43:40
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

    Status: Open => Needs information

actionparsnip requested more information:
What drive letter does it get in Windows?

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mount: can block device / dev / sdb1 not remounting as read-and-write because it is write protected

Does the storage have a make and model ?

If you try using that USB device in Windows, is it also write-protected there, or can you modify it in Windows?

Is there a chance that you check its behavior on a completely different computer?

The protection is also in Windows and on an other computer.
I found out that (after Windows checked and repaired) the others USB sticks work normally again.
The one that is stll RO is SanDiskcruser slice 32BG

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Verzonden: Maandag 3 april 2017 17:43:41
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

Manfred Hampl requested more information:
If you try using that USB device in Windows, is it also write-protected
there, or can you modify it in Windows?

Is there a chance that you check its behavior on a completely different
computer?

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The disk is SanDisk Cruzer Slice 32G

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Verzonden: Maandag 3 april 2017 17:17:53
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

    Status: Open => Needs information

actionparsnip requested more information:
mount: can block device / dev / sdb1 not remounting as read-and-write
because it is write protected

Does the storage have a make and model ?

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I suggest you copy the data off, then delete the partition and recreate it in Windows. I'd suggest you use NTFS. It is a lot more resistant than FAT32 (unless you use a Mac)

Maybe that USB stick is somewhat defective.
I suggest that you copy all data from it (as long as this is possible) to make sure that you do not lose the files.

I do have a backup so no data are lost. Formatting is not possible because it stays RO.

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Verzonden: Maandag 3 april 2017 19:08:14
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

    Status: Open => Answered

actionparsnip proposed the following answer:
I suggest you copy the data off, then delete the partition and recreate
it in Windows. I'd suggest you use NTFS. It is a lot more resistant than
FAT32 (unless you use a Mac)

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I have backup of the data. May it is total loss then...

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Verzonden: Maandag 3 april 2017 19:08:28
Onderwerp: Re: [Question #605022]: USB write protected

Your question #605022 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/605022

Manfred Hampl proposed the following answer:
Maybe that USB stick is somewhat defective.
I suggest that you copy all data from it (as long as this is possible) to make sure that you do not lose the files.

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Delete the partition using Gparted or using disk management in Windows