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I am following the instructions to create a UEFI-only bootable-live USB media, but after the completing the step to change the partition type of the USB, I am no longer able to mount the USB.

I first formatted my USB device using the Disks utility tool, with format FAT32.

Then, I unmounted my device: 

sudo umount /dev/sdb

and then I used this command:

sudo parted /dev/sdb mklabel gpt

Once the command completed, I got a message about how I might need to update /etc/fstab, but I can't figure out what to put in that file.

I have tried to mount my device where I previously found it (/media/$USER/) but I get this error message when I attempt to do so:

mount: /media/$USER: wrong fs type, bad option, bad superblock on /dev/sdb, missing codepage or helper program, or other error.

I need to be able to mount the device again so that I can copy the .iso using p7zip.

Here is output from a parted --list command:

Model: SanDisk Cruzer Glide (scsi)
Disk /dev/sdb: 8004MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
pickle
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1 Answers1

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You've created an empty partition table and still need to create a partition itself:

sudo parted /dev/sdb mkpart primary ext4 0 8 GiB

The above creates an 8 GiB partition, so change this to the size you need or just use gparted...

I would not mount this partition in fstab as this happens at boot time and this is a removeable drive, so no need to do that!

Fabby
  • 35,017