MP3-плеер USB внезапно ограничил полномочия. Действительно ли это - проблема udev?

Я монтирую свои несколько MP3-плееров под моим $HOME/mnt/mp3 каталог, с помощью lsblk, сопровождаемый моим fixmp3 сценарий, который является:

#!/bin/bash
# Umount, Repair (via fsck.fvat) and Mount a device (/dev/sdx)
# Walt Sullivan, Walt Sullivan Software, Ltd.

# determine my name
me=$0
me=${me##*/}

# -h or --help 
help () {
    cat >&2 <<EOF
${me} [-h|--help] [-d|--debug] [-v|--verbose]
${me}: FIXME put your help message here FIXME .

EOF
    exit 2
}

declare -i debug=0 verbose=0

TEMP=`getopt -o dhv --long debug,help,verbose \
     -n 'FIXME.bash' -- "$@"`

if [[ $? != 0 ]] ; then echo "${me} --help for help." >&2 ; exit 1 ; fi

# Note the quotes around `$TEMP': they are essential!
eval set -- "$TEMP"

while true ; do
    case "$1" in
        -d|--debug) debug=1; shift;;
        -h|--help) help; shift;;
        -v|--verbose) verbose=1; shift;;
        --) shift; break;;
        *) echo "Internal error! ${me} --help for help";exit 1;;
    esac
done


NEED_sudo="sudo "
uid=$( /usr/bin/id -u )
[ $uid -eq 0 ] && NEED_sudo=
# Use ${NEED_sudo} as a prefix for commands that need to run as root
#${NEED_sudo}wc -l /etc/shadow
while [[ $# -gt 0 ]] ;do
    target="$1"
    shift
    mntdir="$HOME/mnt/mp3/${target##*/}"
    [[ -d "$mntdir" ]] || mkdir --mode=755 "$mntdir"
    ${NEED_sudo}umount $target
    ${NEED_sudo}fsck.vfat -w -y $target
    ${NEED_sudo}mount -t vfat -o rw,user,users,nosuid,nodev,relatime,uid=1000,gid=1000,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,showexec,utf8,flush,errors=remount-ro,uhelper=udisks2 $target $mntdir
done
exit 0

Я должен был добавить меня к нескольким группам для получения доступа управления системой, который я хочу. Это не может относиться к Вашей проблеме, но:

walt@bat:~(130)$ id
uid=1000(walt) gid=1000(walt) groups=1000(walt),4(adm),7(lp),20(dialout),24(cdrom),27(sudo),101(systemd-journal),106(input),113(lpadmin),141(wireshark),142(motion),143(libvirtd)

Вот что journalctl говорит мне, когда я включаю свою Zip Клипа Sansa:

Aug 09 21:15:11 bat kernel: usb 1-1.5: new high-speed USB device number 67 using ehci-pci
Aug 09 21:15:11 bat kernel: usb 1-1.5: New USB device found, idVendor=0781, idProduct=74e5
Aug 09 21:15:11 bat kernel: usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Aug 09 21:15:11 bat kernel: usb 1-1.5: Product: Sansa Clip Zip
Aug 09 21:15:11 bat kernel: usb 1-1.5: Manufacturer: SanDisk
Aug 09 21:15:11 bat kernel: usb 1-1.5: SerialNumber: 671DE90B6751C3A80000000000000000
Aug 09 21:15:11 bat kernel: usb-storage 1-1.5:1.0: USB Mass Storage device detected
Aug 09 21:15:12 bat kernel: scsi host6: usb-storage 1-1.5:1.0
Aug 09 21:15:12 bat mtp-probe[7103]: checking bus 1, device 67: "/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5"
Aug 09 21:15:12 bat mtp-probe[7103]: bus: 1, device: 67 was not an MTP device
Aug 09 21:15:12 bat kernel: scsi 6:0:0:0: Direct-Access     SanDisk  Sansa Clip Zip 4 v01. PQ: 0 ANSI: 0
Aug 09 21:15:12 bat kernel: scsi 6:0:0:1: Direct-Access     SanDisk  Sansa Clip Zip 4 v01. PQ: 0 ANSI: 0
Aug 09 21:15:12 bat kernel: sd 6:0:0:0: Attached scsi generic sg1 type 0
Aug 09 21:15:12 bat kernel: sd 6:0:0:1: Attached scsi generic sg2 type 0
Aug 09 21:15:12 bat kernel: sd 6:0:0:0: [sdb] 7683072 512-byte logical blocks: (3.93 GB/3.66 GiB)
Aug 09 21:15:12 bat kernel: sd 6:0:0:1: [sdc] Attached SCSI removable disk
Aug 09 21:15:13 bat kernel: sd 6:0:0:0: [sdb] Write Protect is off
Aug 09 21:15:13 bat kernel: sd 6:0:0:0: [sdb] Mode Sense: 04 00 00 00
Aug 09 21:15:13 bat kernel: sd 6:0:0:0: [sdb] No Caching mode page found
Aug 09 21:15:13 bat kernel: sd 6:0:0:0: [sdb] Assuming drive cache: write through
Aug 09 21:15:13 bat kernel:  sdb:
Aug 09 21:15:13 bat kernel: sd 6:0:0:0: [sdb] Attached SCSI removable disk