Floppy drive weird default options

[Carmina16]

Version: 2.9.4

When floppy icon in file manager is clicked, or udisksctl called without options, the device is mounted with following options:

rw,nosuid,nodev,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro,uhelper=udisks2

i.e. the vfat_defaults options from the config file are ignored complely.

The following work-around currently works: forego the file manager, call udisksctl -t vfat manually.

[tbzatek]

First of all, thanks for the bugreport, letting us know that somebody out there actually uses floppies! We don't have much floppy stuff in our test suite and it's generally untested.

Can you please grep the respective floppy drive record from /proc/self/mountinfo? I'm wondering what filesystem type this is. It might be umsdos, fat12 or fat16, while vfat is essentially fat32.

Can you also post udevadm info /dev/fd0?

[Carmina16]

254 24 2:0 / /run/media/<user>/disk rw,nosuid,nodev,noatime shared:81 - vfat /dev/fd0 rw,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro

P: /devices/platform/floppy.0/block/fd0
N: fd0
L: 0
E: DEVPATH=/devices/platform/floppy.0/block/fd0
E: DEVNAME=/dev/fd0
E: DEVTYPE=disk
E: MAJOR=2
E: MINOR=0
E: SUBSYSTEM=block
E: USEC_INITIALIZED=8955797
E: ID_DRIVE_FLOPPY=1
E: TAGS=:systemd:
E: CURRENT_TAGS=:systemd:

[tbzatek]

I see, thanks. The problem is that there's no probing done from udev side, for obvious reasons for the floppy. So that udisks has no idea and just mounts the block device on request with filesystem type "auto". It's up to the lower system layers then to select a filesystem and some default mount options.

The easiest way to work around this is to make a record in /etc/fstab since the block device name is typically stable. Then UDisks would honor your settings.