Red Hat Bugzilla – Bug 218251
gnome-vfs changes rights for external (USB) media
Last modified: 2015-03-03 17:31:04 EST
Description of problem:
Version-Release number of selected component (if applicable):
Always reproduces. Only tested with one device though.
Steps to Reproduce:
1. Edit /etc/fstab to include a line similar to this:
/dev/sda /media/usb vfat defaults,rw,user,noauto 0 0
2. Add in your media
3. Mount it
4. Do some operations from the terminal (things should work fine)
5. Do some operations from nautilus or another gnome-vfs2 application (rights
should be set to read only).
When I try to use a gnome-vfs2 application to copy files from or to an external
drive, the rights for the drive is set to read only -- even if the drive was
actually mounted read-write.
The rights of the drive should been unaltered.
The device in question was a Nokia 6270 with a 128MB MiniSD card.
The closed source nvidia driver was loaded when the tests where done (be back on
that one in a minute).
The nvidia driver is unrelated to this bug.
Also please note that gnome will not mount the device automatically. Gnome will
mount it on demand -- alternatively mount it through manual mounting.
What do you mean by "rights for the drive is set"? It gets remounted read-only?
It doesn't actually get remounted (according to /etc/mtab), but the effect is
the same as if the drive was unmounted and mounted read only.
Clarification: When a gnome-vfs2 app reads the content of the drive, it has the
side effect of disabling write support for the drive -- regardless of which
program is used to do this. I can mount it just fine with nautilus or any using
other mounting tool (such as mount), but as soon as I open the drive in a
gnome-vfs2 application, it is read-only untill I unmount it and mount it again.
There are no alterations to /etc/mtab and as far as I can tell there is no
unmounting going on in the process of marking the drive as read-only.
Do you get any warnings in e.g. /var/log/messages. Sometimes hitting kernel or
filesystem errors can turn the mount read-only.
I get a ton of Filesystem panics, but no notifications of remounting or unmounting.
Filesystem panics? Thats sounds really bad... Maybe it triggered read-only
without logging that.
That's my theory. Anyways it appears that there is no usefull information in the
syslog as such. Please note that the bug does not occure for drives not in
/etc/fstab (which seems to be rather important now that I remember to tell you).
I'll have a look at the logs one more time to see if there are anything
significant other than the fs panics.
Fedora apologizes that these issues have not been resolved yet. We're
sorry it's taken so long for your bug to be properly triaged and acted
on. We appreciate the time you took to report this issue and want to
make sure no important bugs slip through the cracks.
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If this bug is still open against Fedora Core 1 through 6, thirty days
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these issues to this point.
The process we are following is outlined here:
We will be following the process here:
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This bug is open for a Fedora version that is no longer maintained and
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Thank you for reporting this bug and we are sorry it could not be fixed.