a mount point for a pendrive

Holden Caulfield · 11-01-2014, 10:07 AM

Where does KDE get a mount point name for an inserted pendrive from? There is fat32 and no label.
It mounts it as "/run/media/<username>/openSUSE-13.1-DVD-x86_640091/". There was opensuse on this stick before, but I deleted all partitions and formatted the drive.

haeri · 11-01-2014, 11:21 AM

IFAIK, the name is coming from udisks/udisks2. Just take a look at https://wiki.archlinux.org/index.php/udisks for more info.

tredegar · 11-01-2014, 11:34 AM

Welcome to LQ!

I think the mountpoint is named after the disk's label.
Relabel the disk / partition to change the mount point.

Holden Caulfield · 11-01-2014, 11:53 AM

GParted shows that there is no label.
mlabel: Volume has no label
udisksctl shows IdLabel with old label, before formatting. Is udev caching uuids and labels connections?

tredegar · 11-01-2014, 12:06 PM

[QUOTE Is udev caching uuids and labels connections?][/QUOTE]
It's possible, but I would find this annoying.
You could try assigning a new UUID and see what happens (let us know either way please)

Holden Caulfield · 11-01-2014, 01:58 PM

Setting a new label has solved the problem. I hadn't done it before, because I tried to find the reasons. The partition type is 83 (Linux), but the filesystem is vfat, maybe there's something left from the previous content.

273 · 11-01-2014, 02:10 PM

As I understand it UDEV deals with the mouting of devices by UUID and if you ever use a device not labelled at all this is apparent. So, I would then assume that if a label is present a given device will be mounted under a mount point with that name and I see no reason for the mount point for a device to change unless the label changes to another string -- i.e. if it's blank then the old one would be used.
The above is just guesswork but based upon messing with a few USB drives over a fairly long period of time.

tredegar · 11-01-2014, 02:18 PM

Quote:

Setting a new label has solved problem.

Good, and thanks for the follow-up.

"Partition type" and filesystems mounted on them have caused me some head-scratching in the past. But when it "just worked", I moved on (I'm lazy, I know).

Had you not fixed the problem, I'd have asked you to look at the output of cat /etc/blkid.tab, but it seems your Q is A'd already.

Best wishes.

Holden Caulfield · 11-01-2014, 02:50 PM

Quote:

Originally Posted by tredegar

cat /etc/blkid.tab

"No such file or directory" (Arch)

I set a new label "test" - the mount point changed to "test"
I deleted the label... the mount point is "openSUSE-13.1-DVD-x86_640091" again. So I went back to square one.

Teufel · 11-01-2014, 03:24 PM

dd if=/dev/zero of=/dev/sdX count=1 bs=1M
it will make udev forget about openSUSE.

P.S.
Be sure you running dd on correct device. And it should be entire device, not a partition (e.g. /dev/sdd, not /dev/sdd1)

Holden Caulfield · 11-02-2014, 05:16 AM

Quote:

Originally Posted by Teufel

dd if=/dev/zero of=/dev/sdX count=1 bs=1M
it will make udev forget about openSUSE.

Ok, but where does the system keep uuid <> mountpoint relationships? It's not Windows with it's messy registry.

Teufel · 11-02-2014, 05:30 AM

AFAIK, system doesn't keep UUID to mountpoint relationship.
What does blkid show? Has your stick opensuse label still? If so, dd it.

venicesmith001 · 11-02-2014, 06:13 AM

Is there anyone provide information about AFAIK ??

Holden Caulfield · 11-02-2014, 06:50 AM

Quote:

Originally Posted by Teufel

What does blkid show?

All utilities showed there was no label.

Quote:

dd it.

dd did the trick. Next I created a new partition, a new filesystem, and there is no "opensuse..." anymore, even without any label.
Thank you.