Comment 0 for bug 1021375

First time I use an USB drive since I updated to 12.04 and I found a really annoying bug on Nautilus. Nautilus claims that the destination drive is read-only when in fact it is not.

How to reproduce:

1. Connect a USB stick drive to your competer.
2. The USB will appear in the desktop.
3. Open two Nautilus windows one in your home folder, other in the USB stick drive.
4. Select any file from your home folder (small enough to fit the free space in the USB drive)
5. Drag the file and drop it in the USB drive window.

-- Nautilus will say that it cannot copy the file because the destination is read ony --

If you try the copy the same file with the terminal you will see that the file is copied without problem, other programs like gedit or LibreOffice can write in the usb stick drive just fine.

It is not a problem with the USB stick, as shown here:

[ 6232.288064] usb 2-1: new high-speed USB device number 6 using ehci_hcd
[ 6232.426378] scsi8 : usb-storage 2-1:1.0
[ 6233.468489] scsi 8:0:0:0: Direct-Access Kingston DT 101 II PMAP PQ: 0 ANSI: 0 CCS
[ 6233.469862] sd 8:0:0:0: Attached scsi generic sg2 type 0
[ 6234.178262] sd 8:0:0:0: [sdb] 3909632 512-byte logical blocks: (2.00 GB/1.86 GiB)
[ 6234.178735] sd 8:0:0:0: [sdb] Write Protect is off
[ 6234.178740] sd 8:0:0:0: [sdb] Mode Sense: 23 00 00 00
[ 6234.179251] sd 8:0:0:0: [sdb] No Caching mode page present
[ 6234.179256] sd 8:0:0:0: [sdb] Assuming drive cache: write through
[ 6234.183369] sd 8:0:0:0: [sdb] No Caching mode page present
[ 6234.183376] sd 8:0:0:0: [sdb] Assuming drive cache: write through
[ 6234.210138] sdb: sdb1
[ 6234.212732] sd 8:0:0:0: [sdb] No Caching mode page present
[ 6234.212736] sd 8:0:0:0: [sdb] Assuming drive cache: write through
[ 6234.212740] sd 8:0:0:0: [sdb] Attached SCSI removable disk

The permisions on the removable drive are set correctly:

sergio@shana:/media$ ls -lah
total 12K
drwxr-xr-x 3 root root 4,0K jul 5 10:20 .
drwxr-xr-x 23 root root 4,0K jul 3 11:01 ..
drwx------ 5 sergio sergio 4,0K dic 31 1969 DESIGNPLUS

There is enough free space in the drive:

sergio@shana:/media/DESIGNPLUS$ df -h
S.ficheros Tamaño Usado Disp Uso% Montado en
/dev/sda2 50G 5,5G 42G 12% /
udev 1,5G 4,0K 1,5G 1% /dev
tmpfs 579M 872K 579M 1% /run
none 5,0M 0 5,0M 0% /run/lock
none 1,5G 1,1M 1,5G 1% /run/shm
/dev/sda1 497M 113M 360M 24% /boot
/dev/sda5 245G 111G 122G 48% /home
/dev/sdb1 1,9G 681M 1,2G 36% /media/DESIGNPLUS

A file can be copied to the USB stick using the cp command for example.

sergio@shana:~/Trash$ cd /media/DESIGNPLUS
sergio@shana:/media/DESIGNPLUS$ ls -lah
total 204K
drwx------ 5 sergio sergio 4,0K jul 5 10:38 .
drwxr-xr-x 3 root root 4,0K jul 5 10:20 ..
-rw-r--r-- 1 sergio sergio 117K jul 5 10:14 ._Screen Shot 2012-06-30 at 8.50.37 AM.png
-rw-r--r-- 1 sergio sergio 55K jun 30 08:51 Screen Shot 2012-06-30 at 8.50.37 AM.png
drwx------ 4 sergio sergio 4,0K jul 5 10:05 .Spotlight-V100
drwx------ 2 sergio sergio 4,0K jul 5 10:05 .Trashes
-rw-r--r-- 1 sergio sergio 4,0K jul 5 10:05 ._.Trashes
-rw-r--r-- 1 sergio sergio 73 jul 5 10:38 wireless.txt

But nautilus just dennies to copy the file claming that the destination is read only, when it is not.

I tested it with two different USB sticks in two different computers running Ubuntu 12.04 and the same result.