← All Kali Issues
Kali Linux
Cannot format USB
S System
Medium
🔴 Error Message
Cannot format USB drive in Kali
📖 What This Means
Drive is mounted or write-protected.
🔧 Step-by-Step Fix
- Unmount: sudo umount /dev/sdX1
- Format: sudo mkfs.ext4 /dev/sdX1
- Or FAT32: sudo mkfs.vfat /dev/sdX1
- Check write-protect switch on USB