# Inside live session sha256sum /cdrom/casper/filesystem.squashfs # Compare to known value from ISO's manifest The Linux Mint 22 ISO can be downloaded with high assurance only if both SHA256 and GPG verification are performed. The official signing key must be obtained from a trusted source (e.g., Mint’s GitHub, or previous verified installation). Users relying solely on hash values from the same mirror are vulnerable to attack.
# Check integrity of written medium cmp -l /dev/sdX linuxmint-22-cinnamon-64bit.iso Or boot and run: linux mint 22 download iso