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I have burned an ubuntu image on an external hard-drive and I am trying to erase it. I have first tried to erase the image through the pi-imager but for some reason I get the error:

Error formatting (through udisks2)

So then I mounted it, but for some reason it can only be mounted in "read-only" mode. My first question here is: how could I force the mount of my hard-drive to be in "write" mode ? After a few research I have decided to follow this post and compute:

wipe -q /dev/sdc2

It took hours to have the task complete, however the Ubuntu image is still on the hard-drive. So what am I doing wrong here such that the wipe doesn't work ?

The output of lsblk is :

...
sdc           8:32   0   3.7T  0 disk 
└─sdc2        8:34   0   1.5T  0 part 
nvme0n1     259:0    0   1.8T  0 disk
...

Could it be because I did wipe -q /dev/sdc2 and not wipe -q /dev/sdc ? Please let me know if I could add additional information to my question as I don't see any other explanation tracks. Thank you very much for your help.

Joachim Bsh
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    Did you use dd or a tools that used dd? You just need to erase partition table. Reset USB flash that was dd'd to make it usable again, reuse https://askubuntu.com/questions/939230/formatting-a-usb-stick-unable-to-operate-usb/939266#939266 & https://help.ubuntu.com/community/mkusb#Re-use_the_pendrive & https://unix.stackexchange.com/questions/216152/usb-disk-read-only-cannot-format-turn-off-write-protection – oldfred Jul 26 '23 at 18:45
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    Do: sudo mount -o remount,rw /dev/sda. If failure, sudo journalctl --since="-5 minutes". You cannot wipe, write, or otherwise modify a Read Only ro disk. – waltinator Jul 26 '23 at 20:22

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