Public bug reported:
I kept asking on ubunut forums but no body there would help me not even
how to file a bug report.
But basically here is the issues:
I have ubuntu 12.04 on my desktop.
I plugged in my tablet (pandigital) to the usb to put music files on it, onto
the memory card (32 gb pny microsd)
The files (50 files) began copying fine, but after about 50% it got slower and
slower and slower, then finely stopped and ubuntu gave an error that the
microsd card could not be found.
after a few seconds, it opened up like I had just plugged it in, only now i
cant copy files to it because it says it is "read only".
I did a 'safely remove', and restarted my tablet, but now it says the card is
not mounted or has no files.
I put the card into the card reader on my desktop, and ubuntu finds it, with
all the files, but wont let me copy any files to it because it is 'read only'.
I put the card in my windows laptop, and it also says it is read only.
fsck dosfsck, chown, and remounting the drive all fail because "read-
only file system."
Windows chkdsk finds nothing wrong, but cannot do a "automatically fix
file system errors" because it is a "read only file system".
I see a lot of mentions online that complain about ubuntu making read-
only file systems on memory cards, and i see a lot of mentions about
file transfers in ubuntu getting slower and slower.
is this something that can be fixed or do i need to loose all my data
and start all over, and why does ubuntu have a big problem causing this?
Then I tried to do this:
ok I took a 16gb pny card that was in my music player and i put it in the
tablet and formated it with android. it was a good memory card and it was used
for allmost a year with no troubles. if this works then it was a bad 32gb pny
card.
i copied lots of files from the tablet's internal memory onto the sd card and
it copied them just fine.
so then i copied 1 or 2 pictures from my ubuntu desktop computer and it copied
them just fine using nautilus and drag and drop method.
then i copied a few songs about 2 or 3 and they copied fine.
then i tried to copy 10 songs at once and it copied the first ones ok then it
got slower and slower and finely after about 5 minutes it said there was an
error copying because it couldnt find the memory stick anymore.
so then i turned off the tablet and put in the memory stick to the card reader
and yep it is read only now.
my windows laptop also said it is read only
so i erased it formatted it in windows on my laptop and then i copied files
from windows to it almost 4 gb and no problem and very fast.
so i put it into the tablet and it can see all the files and i copy them from
the card to the internal memory with no problem.
then i put the card in my ubuntu 12.04 desktop and after copyed 6 songs, about
56 mb, it slowed down and finely said it cant find the device then it was read
only again.
i started my desktop with the live dvd and tried it from there and yep. same
thing, still made it read only.
so now i took my 32gb card and reformated it and in windows it works just fine
and in the tablet it works just fine but i want to know: how can i copy files
from ubuntu to the card without making read only?
And finely I tried this:
ok so I had an idea to download a brand new live disk of ubuntu 12.04 and boot
my laptop to ubuntu.
and just to make sure, i bought a new memory card (8gb).
and so I used windows chkdsk to make sure the card was good, and no errors
found.
and then i used windows to copy "my documents" (about 200 files) and it only
took a minute to copy with no problem.
then i erased them and ran chkdsk again, and no problem.
so the card is good right?
then I booted my laptop to the ubuntu live disk and tried to copy the same
files from windows documents to the card and it copied and copied and copied
and got slower and slower and finely it gave an error that it couldnt find the
card anymore.
then i rebooted my laptop to windows (xp) and ran a chkdsk and ut oh its read
only.
and i put it in my tablet and it cant mount it.
in conclusion: the only thing that makes my cards read only is ubuntu
and on 2 different machines all together. so anyway with so many people
online talking about how slow it is to copy files after a while in
ubuntu and lot's of people saying they got a read only file system from
ubuntu then what is the way to fix it?
And then I posted that maybe it is a bug which a lot of people report
about but never filed a bug report, so do you know how I can do that if
nobody is able to fix it here? And if it is quick enough then maybe they
can fix it before they get 12.10 made so everybody can not have this
problem anymore
Thank you very much.
** Affects: nautilus (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1052418
Title:
Transfer files to tablet brakes sd card and makes a read only file
system
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