UDisks showexec issue

[joneall]

For the last 2 or 3 days, since a dist-upgrade, I get these notifications in the morning:

UDisks showexec issue

Applications cannot run from
/media/root/3AAD-EB34.
See
https://github.com/storaged-project/udisks/issues/707

UDisks showexec issue

Applications cannot run from
/media/root/527A-5207.
See
https://github.com/storaged-project/udisks/issues/707

The link is titled " FAT disks should not be mounted with showexec ". But I can find no forgotten USB keys and the only FAT I use is FAT32.

What gives? I can't delete showexec, as they suggest, because

$ dpkg -l showexec
dpkg-query: no packages found matching showexec

[jlittle]

showexec is a mount option, see the man page for the mount command, or run man mount in a konsole.

My understanding is that having executable files on a USB stick is very insecure, so running stuff from filesystems in the FAT family has long been disabled. The showexec option only makes sense if execute permission is possible.

The error implies that your system is trying to mount something with the showexec option. I am baffled that this would be so. Does it appear in the file /etc/fstab? Or is there something in system settings, removable storage, removable devices? That latter accumulates entries for old devices, and it doesn't hurt to clear them out using the "Forget Device" button.

[joneall]

My /etc/fstab is clean, no FAT disks and only those which are indeed properly mounted. However, df gives this

$ df
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 801500 3500 798000 1% /run
/dev/sda2 71670904 41997932 25986572 62% /
tmpfs 4007484 1376 4006108 1% /dev/shm
tmpfs 5120 4 5116 1% /run/lock
/dev/sda4 206233028 130427004 65303880 67% /home/jon/jon-files
/dev/sda1 245996 12616 233381 6% /boot/efi
/dev/sdc4 361044028 228188968 114488596 67% /home/jon/our-pix
/dev/sdc6 51422028 3846712 44937492 8% /samba-transfer
/dev/sdc5 206233028 145985900 49744984 75% /home/jon/music-mp3
tmpfs 801496 100 801396 1% /run/user/1000
appimaged-833-x86_64.AppImage 5120 5120 0 100% /tmp/.mount_appimaNPDOgf

What are /dev/shm, /run/lock and /tmp/.mount_appimaNPDOgf?

[jlittle]

(Ignore tmpfs entries; they're in-memory file systems used mostly for performance, sort of like /tmp. On some distros /tmp is a tmpfs.)

Re the showexec problem, I expect /samba-transfer is some kind of FAT.

[joneall]

Re the showexec problem, I expect /samba-transfer is some kind of FAT.

Nope, it's an ext4. Thanks for the nice try!

Model: ATA ST1000DM003-1CH1 (scsi)
Disk /dev/sdc: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:

Number Start End Size File system Name Flags
1 1049kB 211MB 210MB fat32 msftdata
3 211MB 53.7GB 53.5GB ext4
2 204GB 268GB 64.4GB ext4 bios_grub
4 268GB 644GB 376GB ext4 Linux filesystem
5 644GB 859GB 215GB ext4 Linux filesystem
6 859GB 913GB 53.7GB ext4 Linux filesystem
7 913GB 923GB 10.7GB linux-swap(v1) Linux swap swap

Could any of these be a problem? Whatever is msftdata?

$ sudo parted -l | grep -i fat
1 1049kB 257MB 256MB fat32 EFI System boot, esp
2 1049kB 211MB 210MB fat32 boot, esp
1 1049kB 211MB 210MB fat32 msftdata