My 16 GB USB flash drive (SanDisk Cruzer SDCZ36-016G BL1008OFZB) got corrupted and I was going to format it, when I saw the setting for size only had one element in its dropdown menu: 1.00 GB. Thinking this would not change the real capacity, I proceeded to format it to the NTFS file system. Turns out, it was serious of only having 1 GB of space.  Is there anything I can now do to recover the ~15 GB of space this piece of junk cannot hold anymore?
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My USB drive used to be originally 8GB when I bought it.  I'm trying to reformatted in Windows 7 by right clicking on the drive and selecting Format.... But the capacity only shows 250MB.  Is there something I can do to get the original size back? Maybe it got partitioned in a weird way?   The  flash drive is a SanDisk Cruzer Micro 8GB. I got it from Wal-Mart but this is the same drive.
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I was trying to put the  onto a thumb drive, when I was asked if I was OK with wiping it (I said yes I as it was blank).  I had to sleep my computer during the wiping, and now I can't do anything with my dive.  When I put it into my computer:    When I click format disk:    In short, the disk never reformats (I get an error message letting me know that Windows was unable to format the drive).  Whats going on, and how do I fix it?
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After writing the FreeNAS IMG to a 16 GB USB flash drive, I can now only use 938 MB. I used the Win32 Disk Imager tool to write the IMG to the device. Then later, when I inserted the the USB drive into my Windows 7 computer it said that it had to be formatted, because it couldn't read it. I believe this is normal. So I formatted it inside Windows using the format option when prompted. So in Windows Explorer now, 938 MB is reported as capacity of this device.    Also, when i check the properties dialog box I can see the same numbers.    And when I check with diskmgmt.msc I can see there are several volumes I don't recognize and unallocated space of 12.79 GB.    Now, I have another 2 GB USB flash drive with the same problem. It too was used for FreeNAS, and it too has a reported capacity of only 938 MB. I thought it was broken there for a while, until I saw the same problem with this 16 GB model.  I tried using diskpart on the 2 GB model, and I saw that there were several partitions there (list partitions) just like on this one. So I used the clean option to try to wipe it, but that wiped off everything so it's totally useless now. I'm not sure how to rebuild it.  Is this a standard routine, like part of the whole "user experience", that whenever you make a bootable USB falsh drive with FreeNAS, it messes up your device? I am new to FreeNAS, so i wouldn't know. But it sure looks like it. Maybe it is in fact the format operation in Windows that messes things up... I don't know. It's not very nice.  How do I restore the capacity back to 16 GB-ish (14.9 GiB)?
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I understand why .  I have three NTFS-formatted drives with the same exact data on it. Their allocation unit is 4096 bytes. The number of files and folders as well as the size matches on all three.  However when I open the properties for the root folder of these mirrored drives, only on the first two have the Size on disk match though. On the third, it is slightly larger.  Is this a potential signal of file corruption, or a mere byproduct of the file system?
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Recently, I bought an USB flash drive which has a cool design.  The seller said it is 256GB however, I've already known that capacity would be fake. Anyway, I bought it cause of its cool design and want to use this USB flash drive anyway.  What should I do?  I've tried to find a proper tool(vid 1908 / pid 1320) but couldn't. Can I repair this through Low level format? Or partitioning this through Linux?
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Hello. I was trying to make a bootable flash drive from the startup disk creator, and when I went to erase the flash drive I accidentally erased the wrong drive, a 1TB removable drive. The operation took less than a second and gave no warning. I tried erasing the flash drive and it took about a minute, but it took but a second to erase the 1 TB drive, which is very surprising.  Please help, Gabriel
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I unplugged my USB stick from Ubuntu 16.04 without the save remove option, but exfat should be fine doing so. No read write was happening, the partition does not use journaling. What I end up with is an unmountable USB stick with checksum error.   What tools are there to recover the partition table or at least the data on the USB stick? What I am doing now is scanning via parted. Has anyone experienced the same problem with exfat and recovery options? Unfortunately parted probably won't detect the partition because .  I also tried to use Partition Wizard on Windows but it failed to detect anything, just showing unallocated space. How do I proceed? are there helpful tools under Windows or Ubuntu?    I also tried to use gpart -v /dev/sdb but it failed to detect anything. On OS X there is a tool called fsck_exfat, is there any on Windows?  update The disk is preinstalled with Parted Magic. After quick search no partition shows up.
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I bought a 16G SD card to put Android on to put in my Nook Color.  I downloaded a Honeycomb distribution and wrote the disk image to it.  Then I found the Nook Color takes Micro-SD cards, and decided to use this SD card for casual file storage and sneakernet.  Right now, it reports its size as 117 MB.  Sticking it into a Windows 7 computer, I can reformat it in several different ways, including NTFS and FAT variations, but always 117 MB.  The reformat to default configuration shows 117 MB.  Is there something I can do to make this hold actual GB again?  Any ideas what happened?
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I tried a few utils and none of them worked. Either USB wasnt supported or the drive was 'recognized'. I am trying to figure out if i should dump the drive or not. Its only a year old but the warranty is only a year which is a pity.
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So, I have a friend who has a flash drive that was playing music on a dvd player. Everything was great then all of a sudden it just stopped. First, I tried to do some data recovery on it but the software i use couldn't find the USB. The usb was sending us the usual error not formatted messages.  I then did a quick format of it and now it only shows 4 megabytes of space. I tried using Disk manager, then DISKPART, but nothing i have tried works.  Disk Managment looks like this:    As you can see it doesn't even show the unallocated space. It doesn't look like it is anything but a 4 mega byte flash drive.  Is it still possible to, at the very least, resurrect the USB?
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I recently wiped my computer to have 14.10 as my only OS. It has 160 GB of storage. That was a month ago. Now, I keep getting prompts that the storage is almost full. And when I look it says I only have 543 MB free. How is this possible? I haven't torrented any large files. I do have Variety to autodownload wallpapers and not erase though.  Filesystem Size Used Avail Use% Mounted on  /dev/sda1  146G  138G  554M  100%  /  none 4.0K 0 4.0K 0% /sys/fs/cgroup  udev 742M 4.0K 742M 1% /dev  tmpfs 151M 1.1M 150M 1% /run  none 5.0M 4.0K 5.0M 1% /run/lock  none 752M 540K 751M 1% /run/shm  none 100M 80K 100M 1% /run/user –  er –
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I want to format my USB stick to ext4 and just use as I would any other typical non-linux format drive (FAT32, exFAT, NTFS).   That is to say, I want to be able to plug the usb stick into any of my linux machines, and read/write to it without needing to adjust permissions, like doing chmod or chown stuff.  I would prefer to use GUI partition software like GParted, rather than command-line commands, though I welcome any solution!  I'm sure a post like this is duplicate flag heaven for some, but after browsing 6~10 SO and forum posts from google, I didn't find a simple solution to my question. Seemed like everything was about adjusting permissions on a per-user basis. Maybe you just cannot use ext4 drives with the same brainless convenience as NTFS.
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I normally dual-boot with 12.04 and Win XP pro sp3 on a Thinkpad R60.  I needed to reinstall windows because of problems piling up, so I ran the computer's built-in hard-disk recovery software.  I told it not to mess with the other partitions, but somehow it deleted the Linux partition.  That's what I was using to backup all of my windows files, so now everything I have is gone.  I just ran the USB setup with linux, and the partition is deleted - it just shows it as empty space.    Is there ANY way to get all of my files back?
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I've made a bit of a balls up...  When attempting to create a bootable Ubuntu usb drive I accidentally ran dd on my main system drive :(  sudo dd if=/path/to/image.img of=/dev/rdisk1 bs=1m   I realised what I'd done pretty quickly but everything seemed fine so I re-ran the command on the correct drive /dev/disk2 and thought "phew not sure how I got away with that"... Then things started going wrong... I could continue using the applications I had open but opening anything new / accessing the hdd caused that thing to lock.  Sadly I haven't been using time machine, lesson learnt!   I spoke to AppleCare who said I need to reformat the machine but I'm really hoping there's some way to restore whatever 1m I destroyed (I'm assuming something to do with the partition information). Wishful thinking?  Also, AppleCare told me to restart, which means I can only user repair mode utils.  Help!
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I have a USB drive formatted with NTFS. I would like to use "compress contents to save disk space" option, although it is greyed out.    It works fine on the C: drive. Any suggestions?
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I've copied the USB drive to an .img file using dd:  dd if=/dev/sdc of=myimage.img   I want to reduce the size of the partition in the image. I've tried several methods and always end up with a loopback-mounted image whose partition is still the full size of the USB.    How do I modify myimage.img to have a smaller partition once loopback-mounted? Do I need to copy zeros into the empty part of the partition before doing so? Do I need to defragment so that when I reduce the image size, I'm deleting empty bytes? (From what I've read, Linux spreads out into the whole partition so I have no expectation that all of the data at the end of the image are zero bytes. Even writing all zeros will just consume the empty bytes wherever they lie.)   NOTE: I'm not trying to save disk space, so zipping doesn't help me.  BACKGROUND  I have Linux installed on a USB drive using ext4. I intend to duplicate the install for multiple devices. I've done so successfully but would like to create on the same USB drive a read-only partition with the system and a small partition that allows persistent storage. Rather than break my USB, I'm trying to modify a copy of the USB. I hope we don't get distracted by this background.  In short, I've done the following:  # Create mount point in current directory sudo mkdir mnt # Loopback mount the image fdisk -l myimage.img sudo mount -o offset=&lt;partion_block_start * block_size&gt; myimage.img mnt # Copy all zeros to remaining space of the image cd mnt sudo dd if=/dev/zero of=filler conv=fsync bs=1M rm filler cd ..   First, I tried to use parted as described in  and qemu-img as described in .  sudo umount mnt parted myimage.img # At parted command prompt (parted) resizepart 1 # Entered my end &lt;target size&gt;. Note that parted uses zero-based  # indexing. This could be your final image size. In my case, the way the # Linux installer worked, the partition started at 1M. (parted) print # I see that the partition is now sized as I expect (parted) exit # Just another sanity check sudo parted -m esp3_007.img unit B print # I see that the partition is now sized as I expect   When I try to mount the image again, it works fine but df still shows the partition as the same size. So then I tried  qemu-img resize myimage.img &lt;target_size&gt;   And now, when I try to mount the image, I get the "mount: wrong fs type, bad option, bad superblock..." error message.  Then I tried using gparted as described in . The GUI showed a full partition unless I ran parted in the first place. Even then, the GUI wouldn't let me resize the partition.  For trying to force the partition size to be smaller, and starting with a fresh copy of myimage.img I tried fdisk described in   sudo fdisk myimage.img Command (m for help): d Command (m for help): n Command action    e   extended    p   primary partition (1-4) p Partition number (1-4, default 1): 1 # defaults on the rest seemed to be correct in my case.   When I mounted the partition, it still showed as the same size.
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I recently purchased a 32GB USB 3 stick that was formatted FAT32.  I plugged it into my computer and attempted to copy a film onto it, the file was over 4GB however and it would not let me copy the file across because of the .  After some googling I found that I could format my USB stick to have an  format which would mean I could put files onto the stick greater than 4GB in size and the drive would work on both my Mac and my PC.  The problem with this solution is that my PS3 cannot detect the USB stick when it is formatted with exFAT.  I would like to know if there is a way I can have my USB stick formatted so it can have files greater than 4 GB and work on my PC, Mac and PS3.