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i try to format my usb 1st time its work all data gone but i can't save any file at this usb .

enter image description here

then i try to check is it working or broken here the report

enter image description here

santos@santos:~$ sudo badblocks -v /dev/sdb
[sudo] password for santos: 

Sorry, try again.

[sudo] password for santos: 

Checking blocks 0 to 7824383

Checking for bad blocks (read-only test):   0.00% done, 0:00 elapsed. (0/0/0 errdone                                                 
Pass completed, 0 bad blocks found. (0/0/0 errors)
santos@santos:~$ sudo badblocks -v -w /dev/sdb
[sudo] password for santos: 

Sorry, try again.
[sudo] password for santos: 

/dev/sdb is apparently in use by the system; it's not safe to run badblocks!
santos@santos:~$ 

how to format and fix this issues?

i have read this link Formatting Pen Drive causes 'Daemon Is Inhibited' Error

and it said like this when i try to move any items from desktop " the destination is read only enter image description here also in this case i use google and find this http://ubuntuforums.org/showthread.php?t=1955353 article as same its not helped

following user13509 suggestion ..

enter image description here

while im check my chmod setting for the usb .. i found it like this

santos@santos:/media$ sudo chmod -R 777/media/New\ Volume chmod: missing operand after 777/media/New Volume' Trychmod --help' for more information.

root@santos:/media# ls -l total 4 drwx------ 3 santos santos 4096 Jan 1 1970 New Volume

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with what filesystem were you trying to format the usb (via disk-utility)? I had the same issue today. –  Ankit Aug 25 '12 at 8:42
    
Please see this question to disable U3. Some of the trouble may be that you are trying to write to the wrong partition on the USB stick. After you disable U3 unplug it and plug it back in. –  John S Gruber Aug 25 '12 at 18:31
    
how to disable the U3 and what is it ? –  santosamaru Aug 26 '12 at 3:55
    
Perhaps some more info could be necessary. Unplug you USB drive and plug it again. From a Terminal (Ctrl+Alt+t)type the following 5 commands: "dmesg | tail -n 20" "dmesg | grep -i usb" "dmesg | grep -i hcd" "lsusb" and "lsmod | grep -i usb". Paste everything to paste.ubuntu.com –  Salvador Aug 31 '12 at 15:43
    
@Salvador here its paste.ubuntu.com/1226898 –  santosamaru Sep 25 '12 at 16:00
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3 Answers

If you need to format a drive and nothing else is working then the last-ditch solution is to use dd. dd is a tool that reads bits and writes bits - very straight forward.

sudo dd if=/dev/zero of=/dev/sdb bs=512 count=1

This will overwrite the MBR of the drive and the next time you plug it in you will have to re-initialize the MBR with gparted or similar tool.

Note: Use /dev/sdb not /dev/sdb1.

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how to use dd.dd ? and it say like this sudo dd if=/dev/zero of=/dev/sdb bs=512 count=1 1+0 records in 1+0 records out 512 bytes (512 B) copied, 5.9858e-05 s, 8.6 MB/s –  santosamaru Sep 25 '12 at 15:50
    
This string 1+0 records in 1+0 records out 512 bytes (512 B) copied, 5.9858e-05 s, 8.6 MB/s means it worked. It copied 512 bytes worth of zeros overtop of your MBR. –  Huckle Oct 2 '12 at 18:26
    
You can now use gparted to make a new filesystem on it and begin using it like normal. Use FAT to make it useable in Windows, Mac OS, and Linux. Use EXT if you only want to use it on Linux. –  Huckle Oct 2 '12 at 18:27
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When formating a disk from Gparted to ext3, you run it from root user. So you need to give back the rights to appropriate users.

$ sudo chown santos:santos /media/USB_key_name_here -R
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Its give me this responds .. chown: cannot access /media/New Volume/.Trash-1000': Input/output error chown: changing ownership of /media/New Volume/': Read-only file system –  santosamaru Aug 28 '12 at 9:15
    
Format the USB stick with Gparted again before to chown. Or empty the trash? –  smonff Aug 29 '12 at 15:29
    
Formatting with Gparted should have no problem accessing it. Because, Every formatting is done with administrative rights on every OS. We format USBs in Linux and use them in Windows. This is not correct –  Anwar Shah Aug 30 '12 at 3:59
    
to mr anwar and sebf . scroll up and see what you can see . that the same screen what i got it . and i do post it to have an answer how to fix it asap got it man ? –  santosamaru Aug 30 '12 at 13:51
    
@santosamaru Is your santos user a sudoer user? Try sudo -l. It will tell you which rights you have or if you aren't listed into the sudoer file. –  smonff Aug 31 '12 at 10:21
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Try this

sudo killall udisks

then load gparted - format to desired file system

good luck Mal

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not help bro any other suggestion .. what to do .. i have updates the error screen shot at the post –  santosamaru Aug 25 '12 at 8:35
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