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Thread: I cannot format or copy files into USB pendrive

  1. #1
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    Nov 2019
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    I cannot format or copy files into USB pendrive

    I have tried to format the usb pendrive from disk and found the format menu is not active then i tried
    fdisk -w /dev/sdb and get
    fdisk: cannot open /dev/sdb: Permission denied

    after that i isssued the following command and got the result as follows
    dmesg | tail
    [ 1180.713494] usb-storage 2-2:1.0: USB Mass Storage device detected
    [ 1180.714416] scsi host3: usb-storage 2-2:1.0
    [ 1181.722536] scsi 3:0:0:0: Direct-Access Generic Flash Disk 8.07 PQ: 0 ANSI: 4
    [ 1181.723656] sd 3:0:0:0: Attached scsi generic sg2 type 0
    [ 1181.724290] sd 3:0:0:0: [sdb] 30720000 512-byte logical blocks: (15.7 GB/14.6 GiB)
    [ 1181.724933] sd 3:0:0:0: [sdb] Write Protect is on
    [ 1181.724934] sd 3:0:0:0: [sdb] Mode Sense: 23 00 80 00
    [ 1181.725588] sd 3:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
    [ 1183.141171] sdb: sdb1
    [ 1183.144160] sd 3:0:0:0: [sdb] Attached SCSI removable disk


    please help

  2. #2
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    Re: I cannot format or copy files into USB pendrive

    Quote Originally Posted by ppbiju View Post
    [ 1181.724933] sd 3:0:0:0: [sdb] Write Protect is on
    That's generally a physical slider to protect the contents of the drive.

  3. #3
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    Re: I cannot format or copy files into USB pendrive

    did you slide it to the off position and try again?
    What do you call someone who speaks 3 languages? Trilingual.
    What do you call someone who speaks 2 languages? Bilingual.
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  4. #4
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    Re: I cannot format or copy files into USB pendrive

    also wouldn't hurt to see what shows with:
    Code:
    ls -l /dev/sd*
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  5. #5
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    Nov 2019
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    Re: I cannot format or copy files into USB pendrive

    the pendrive do not have a physical slider

  6. #6
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    Re: I cannot format or copy files into USB pendrive

    Quote Originally Posted by 1fallen View Post
    also wouldn't hurt to see what shows with:
    Code:
    ls -l /dev/sd*


    I have got the following output


    brw-rw---- 1 root disk 8, 0 Nov 7 08:49 /dev/sda
    brw-rw---- 1 root disk 8, 1 Nov 7 08:49 /dev/sda1
    brw-rw---- 1 root disk 8, 10 Nov 7 08:49 /dev/sda10
    brw-rw---- 1 root disk 8, 11 Nov 7 08:49 /dev/sda11
    brw-rw---- 1 root disk 8, 2 Nov 7 08:49 /dev/sda2
    brw-rw---- 1 root disk 8, 3 Nov 7 08:49 /dev/sda3
    brw-rw---- 1 root disk 8, 4 Nov 7 08:49 /dev/sda4
    brw-rw---- 1 root disk 8, 5 Nov 7 08:49 /dev/sda5
    brw-rw---- 1 root disk 8, 6 Nov 7 08:49 /dev/sda6
    brw-rw---- 1 root disk 8, 7 Nov 7 08:49 /dev/sda7
    brw-rw---- 1 root disk 8, 8 Nov 7 08:49 /dev/sda8
    brw-rw---- 1 root disk 8, 9 Nov 7 08:49 /dev/sda9
    brw-rw---- 1 root disk 8, 16 Nov 7 08:55 /dev/sdb
    brw-rw---- 1 root disk 8, 17 Nov 7 08:55 /dev/sdb1
    Last edited by ppbiju; 4 Weeks Ago at 04:32 AM.

  7. #7
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    Re: I cannot format or copy files into USB pendrive

    I have seen this a few times, sounds like your pendrive is dead, if you are lucky it may be read only to the existing data.
    I have a SD card that I use as a server that went read only, but still works as a server booted toram.

  8. #8
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    Re: I cannot format or copy files into USB pendrive

    With realization of one's own potential and self-confidence in one's ability, one can build a better world.
    Dalai Lama>>
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  9. #9
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    Nov 2019
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    Re: I cannot format or copy files into USB pendrive

    Quote Originally Posted by 1fallen View Post

    I have tried but get only the following out put


    ~$ sudo su -
    [sudo] password for biju:
    :~# df -Th
    Filesystem Type Size Used Avail Use% Mounted on
    udev devtmpfs 3.9G 0 3.9G 0% /dev
    tmpfs tmpfs 790M 1.5M 789M 1% /run
    /dev/sda8 ext4 46G 36G 7.8G 83% /
    tmpfs tmpfs 3.9G 105M 3.8G 3% /dev/shm
    tmpfs tmpfs 5.0M 4.0K 5.0M 1% /run/lock
    tmpfs tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
    tmpfs tmpfs 790M 44K 790M 1% /run/user/1000
    /dev/sdb1 vfat 15G 2.6G 13G 18% /media/biju/bkup
    tmpfs tmpfs 790M 0 790M 0% /run/user/0
    :~# umount /media/biju/bkup
    :~# dosfsck -a /dev/sdb1
    fsck.fat 4.1 (2017-01-24)
    open: Read-only file system

    pl. help

    note : I have used this pendrive to create bootable disk by using startup disk creator one or more times with ubuntu 18.04 after that I just formatted by right clicking on nautilus and copied the iso after that the disk become readonly. ie. I have used only 3 / 4 times after getting it. Is there is any way to factory reset this pendrive

  10. #10
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    Re: I cannot format or copy files into USB pendrive

    Well then that's not very encouraging, I have only one suggestion now, Download a Gparted iso found here: https://gparted.org/livecd.php.
    Now this may prove to be a challenge if you don't have a source to burn it to. IE: USB/CD/DVD.
    If you do, boot to it (Gparted) and see if that will sort it out. (A Re-format is what your after) this is my preferred method. ***Be careful to pick the USB Drive and not your Installed OS.
    If your unable to burn and boot to the Live Gparted session, try to install it in your current Desktop:
    Code:
    sudo apt install gparted
    I have seen for whatever reason Gnome-Disk tool have the same results as your now seeing.(Read Only)
    Good Luck
    Last edited by 1fallen; 4 Weeks Ago at 05:12 PM.
    With realization of one's own potential and self-confidence in one's ability, one can build a better world.
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