Mike Fleetwood authored Feb 10, 2021 and Curtis Gedak committed Feb 17, 2021

Also with exfatprogs 1.1.0 [1], tune.exfat and exfatlabel gained the
capability to report and set the exFAT Volume Serial Number [2][3][4].
This is what blkid and therefore GParted reports as the UUID.

Report serial number:

    # tune.exfat -i /dev/sdb1
    exfatprogs version : 1.1.0
    volume serial : 0x772ffe5d
    # echo $?
    0

    # blkid /dev/sdb1
    /dev/sdb1: LABEL="test exfat" UUID="772F-FE5D" TYPE="exfat" PTTYPE="dos"

Set serial number:

    # tune.exfat -I 0xf96ef190 /dev/sdb1
    exfatprogs version : 1.1.0
    New volume serial : 0xf96ef190
    # echo $?
    0

tune.exfat exists in earlier releases of exfatprogs so check it has the
capability by searching for "Set volume serial" in the help output
before enabling this capability.

    # tune.exfat
    exfatprogs version : 1.1.0
    Usage: tune.exfat
            -l | --print-label                    Print volume label
            -L | --set-label=label                Set volume label
        ...