partitioning - Unable to format my pendrive - Ask Ubuntu


i want try format pendrive show error

device boot start end sectors size id type /dev/sdc1 2048 7802879 7800832 3.7g 83 linux

command (m help): w partition table has been altered. calling ioctl() re-read partition table. re-reading partition table failed.: device or resource busy

the kernel still uses old table. new table used @ next reboot or after run partprobe(8) or kpartx(8).

when try gui

error formating volume

the size of pendrive 4 gb when see in file browser shows size 69 gb, why?

enter image description here

how can format pendrive in fat or ntfs format?

your pendrive have error, have fix first!

open terminal , type:

sudo fdisk -l

to find out pendrives name. then:

sudo dd if=/dev/zero of=/dev/sdx bs=512 count=16

where x letter of pendrive! type in password , hit enter! fixes wrong header entry on pendrive, overwriting , zerroes, in first 8 kb!

after can use normal partition program: set dos , make ntfs or fat32 partition compatibility other computers , multimedia equipment!

i found on our site here: fixing bad usbstick


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