That’s it! I hope this tutorial helped you verify USB capacity in Linux. How to Boot ISO Files From Grub2 Boot Loader.Booting ISO Files Without a USB stickĮver wondered if you can boot Linux and Windows ISO files without creating a live USB or live CD? Yes, you can.

Otherwise, you should ask for your money back. If the usable size equals announced size, then your USB drive is not fake. sudo f3probe -destructive -time-ops /dev/sdb Replace /dev/sdb with the actual block device name of your flash drive. f3probeį3 also comes with a command line utility named f3probe, which is recommended for testing USB flash drives of large capacity due to its fast test speed.įirst find out the block device name of your flash drive with lsblk command: lsblk If you see from the output that some sectors are corrupted, then your USB flash drive is fake. Then use f3read command to check if the file can be read. When writing to flash drive, f3write fills the filesystem with 1GB files named N.h2w, where N is a number (i.e. Now back in your terminal, use f3write command to let f3 write a file to your flash drive. yaourt f3įedora-based distros: sudo dnf install f3 Checking USB Capacityīefore testing the real capacity, make sure the data on the flash drive is backed up and then format it, which can be done with Gparted partition editor. Simply execute the command below: sudo apt install f3Īrch Linux, Manjaro, Apricity OS users can install f3 from AUR repository with Yaourt package manager. Install F3 on Linuxįor Debian, Ubuntu, Linux Mint, Elementary OS users, f3 is available in software repository. But how do you know it’s not fake? f3, which stands for fight flash fraud, can test real USB capacity. So you bought a USB flash drive to create a Linux live USB.

Fakeflashtest takes too long