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I booted ubuntu 22.04 on usb dives and then tried to add some extra data into the flash and when I connected it back I could find it again. here is what I tried I did lsblk and found the drive with 0 byte space.

I tried formating it with mkfs.vfat /dev/sdb and I got no media found error.

I also tried checking the filesystem for errors fsck /dev/sdb and e2fsck -fcky /dev/sdb but I still have no media found error even fdisk and gdisk are unable to read the drive I also tried sudo fdisk -l /dev/sdb and I had not cannot open /dev/sdb: No medium found.

all the above commands were ran as root.

I am short of ideas and need help.

Christian Yemele
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  • Not directly possible. Think of you usb device as "CD disk ro". There are some instructions in the wev on how to add a writable partiton on you USB.. But you will not get that out of the box – kanehekili Dec 13 '23 at 13:27
  • from what I understand you are trying to say it is impossible for the storage to just disappear or I don't get the point. – Christian Yemele Dec 13 '23 at 15:08
  • If you boot from "usb-drive" I assumed you had a live image on your drive. If not, forget my comment – kanehekili Dec 14 '23 at 08:18
  • What is the output of sudo fdisk -l /dev/sd? Please Edit your question and add that information. – stumblebee Dec 16 '23 at 21:29
  • Please answer the previous comments by editing your original question. - And please answer also the following questions: 1. What is the full name of the iso file, from which you created the USB boot system? 2. What method/tool did you use to create a bootiable system in the USB drive? 3. What is the brand name and model of the computer? 4. What is the brand name and model of the graphics chip/card? - You will help us help you by telling us as much as possible about your Ubuntu system. – sudodus Dec 16 '23 at 21:42
  • sudo fdisk -l /dev/sdb gives cannot open /dev/sdb: No medium found. – Christian Yemele Dec 18 '23 at 07:55
  • Please try the following commands and edit your original question to show the output of the commands: 1. sudo fdisk -l /dev/sd? (yes, use a questionmark to look for also other drive letters, not only 'b'); 2. lsblk -e7 -o model,name,size,fstype,label,mountpoints -- Please try your USB drive via the other USB ports on the computer, and also try in some other computer. You can analyze the problem according to this link and if you are lucky, find a solution. – sudodus Dec 18 '23 at 10:51

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