USB will not mount
 

Hi all,

Overall I am enjoying the MATE experience on my GPD Pocket, however I now seem unable to use a USB. When I plug the USB in, nothing happens.


I have opened the Disks app and it is not registering at all (therefore cannot force it to mount).


When I checked the /media/user/ folder, I found multiple duplicates of what looks like the same drive mounted over and over again which I thought might be causing it. Weirdly enough they are not referring to the USB, it is to another partition on my hard drive (my old ubuntu install which I haven't finished migrating from).


[Screenshot-at-2019-01-09-18-39-18.png](https://postimg.cc/Mn4cRCwX)


Is there any way to clean this up and prevent it from happening again so I can use my USB? Or are these issues independent of each other?


Thanks in advance!

What do the following commands report (with the USB device plugged in)?

More info can also be got by observing kernel output in a terminal window...
then plug in the USB device and capture the output.

Udisks output can be similarly monitored...
Report back with the observed output as the device is plugged in. Enclose the output with code tags (refer to the '#' button in the advanced forum editor).

sudo fdisk -l

udisksctl monitor

df -hT

dmesg --follow

I opened up Disks again after running those commands (unsure if related) and it's at least detecting the USB, but now says it is an unknown file system.

[Screenshot-at-2019-01-14-05-53-32.png](https://postimg.cc/0KD0dV0F)

Ok, the output shows that it is being detected as /dev/sda, but perhaps you need to add the requisite file-system support. Is it using exFAT perhaps?

your fdisk & dmesg output suggests that the USB stick is perfectly fine.
it is recognized as /dev/sda.
but there appears to be nothing on it. no partitions, no filesystem. therefore there is nothing to mount.
should there be something on it? what?

I formatted it as ext4, so it should have file system support. I am assuming that the system nuked the partition somehow, as the underlying problem with the multiple mounts from my screenshots is getting worse - I am now up to 13 entries for the same drive.

Additionally, my system is slowing down considerably when copying files (took over an hour to copy 2gb of files from a USB3.0 stick yesterday), and now is having difficulties shutting down.

Is there any way to address these symptoms or do I do the laissez-faire approach and wait for the next ubuntu MATE release? I was hoping not having to use that option as I wanted to move to a rolling distro to avoid the constant format and migration process.

This reads like you have more than one issue to deal with. No usable filesystem on your Verbatim device. You should start by backing up any important data.

I note that this partition (SD card?) is nearly full...
I'm not surprised to read of the filesystem 'slow-down' that you described.

this would imply that all ubuntu mate users are experiencing that same problem.
but i think it much more likely that it is something specific to your setup.
seeing as the SSD is almost full, check that:
- what filled it?
did you just install so much software?
or is something generating cruft (usually log files filling up with important error messages)?
i believe you can use the andcommands to find out.
make sure you check the man pages to get the info you need in a readable format.

Ok thanks ferrari & ondoho.

I have 3 partitions on my local drive (home, root and 2nd OS) and I checked them all for space, and they're averaging ~1.5gb. I had assumed that 1gb would be plenty to leave on each one, but I will endeavour to being them back under 90% to see if that is contributing.

^ read 'man tune2fs', esp. the -m option.
should be 5% for mission critical filesystems, can be up to 0 for others (storage only).