Hello Michaelk

Thanks so much for your reply.

Please find the reply of supporter from linux forum :



This error typically occurs when a USB drive is removed before it is unmounted, or before the USB device was completely unmounted. It can be fixed. Attach the device, then in the terminal run
Code:

sudo fsck /dev/sdb1

since it shows up as sdb1. The fsck utility will give you info on what it finds and will ask for input or confirmation of action. After it runs the first time, if it indictes the drive is clean, run the same command again to be certain. If the first run was not clean, run the command again, and then run it a third time. It should be fine after that. If not, you can format the USB drive and re-burn the .iso to it.


Reply from my computer :


SATELLITE-C850D-11R:~$ sudo fsck /dev/sdb1
[sudo] password for dennis:
fsck de util-linux 2.20.1
fsck.fat 3.0.26 (2014-03-07)
0x41: Dirty bit is set. Fs was not properly unmounted and some data may be corrupt.
1) Remove dirty bit
2) No action
? sudo fsck /dev/sdb1
Invalid input.
? sudo fsck /dev/sdb1
Invalid input.

I don't know what I can do now ...just only to format the USB drive....the process is unknowned from my side...I am a beginner on Linux.

The question mark is fsck's prompt. It expects a 1 or 2 as input.
To format the USB drive, make a filesystem:
You will lose all data that might be on the drive.

Good day Berndbaush,

Before formating my usb key I tried this process

SATELLITE-C850D-11R:~$ sudo fsck /dev/sdb1

fsck de util-linux 2.20.1
fsck.fat 3.0.26 (2014-03-07)
0x41: Dirty bit is set. Fs was not properly unmounted and some data may be corrupt.
1) Remove dirty bit
2) No action
? 1
Leaving filesystem unchanged.
/dev/sdb1: 3624 files, 63830/1890727 clusters

What do you think about the reply above from the terminal f12?
Do I need to try my usb key now in order to know if it working ?

Thanks for your kind reply and advice

I would definitely try mounting it.

please find the test after ? 1



fsck de util-linux 2.20.1
fsck.fat 3.0.26 (2014-03-07)
0x41: Dirty bit is set. Fs was not properly unmounted and some data may be corrupt.
1) Remove dirty bit
2) No action
? 1
Leaving filesystem unchanged.
/dev/sdb1: 3624 files, 63830/1890727 clusters
dennis@dennis-SATELLITE-C850D-11R:~$

SATELLITE-C850D-11R:~$ sudo fsck /dev/sdb1
fsck de util-linux 2.20.1
fsck.fat 3.0.26 (2014-03-07)
0x41: Dirty bit is set. Fs was not properly unmounted and some data may be corrupt.
1) Remove dirty bit
2) No action
? 1
Leaving filesystem unchanged.
/dev/sdb1: 3624 files, 63830/1890727 clusters
dennis@dennis-SATELLITE-C850D-11R:~$

I am not experienced with the FAT version of fsck, but according to the manual page, you need to add the -a option (automatic operation) or -r (interactive) for the tool to change anything. So try fsck -r or fsck -a.

Thanks so much for your link.
I will test and revert to you for the news.

Good day Berndbaush,

Please find the reply from your previous recommendations.
USB Key unmounted for repairs it :

dennis@dennis-SATELLITE-C850D-11R:~$ sudo dosfsck -r /dev/sdb
fsck.fat 3.0.26 (2014-03-07)
Currently, only 1 or 2 FATs are supported, not 251.

What do you think ?

Earlier you asked how to format the drive. I gave you an answer.

Alternatively, I would search the internet to understand the error.

EDIT: Earlier, you used /dev/sdb1. Now, /dev/sdb. Which is correct?

Hi friend,

Previous reply to ask me : yes

please find a new reply for testing my problem within a new way :

dennis@dennis-SATELLITE-C850D-11R:~$ sudo umount /dev/sdb1
umount*: /dev/sdb1*: unmounted
dennis@dennis-SATELLITE-C850D-11R:~$ sudo mkfs.vfat /dev/sdb1
dennis@dennis-SATELLITE-C850D-11R:~$

Even for reformating my usb kew that doesn't works....
i hope the usb ports on my computer are not just "dead"

In which way does it not work?

Impossible to open the mounted usb key and always the same message error sent first time.