u Gprtedu je ista stvar opet mi kaže
Can't write to /dev/sdb, because it is opened read-only.
a ovo je moja dikusaija s fdiskom
Kod: Označi sve
# fdisk /dev/sdb
You will not be able to write the partition table.
Command (m for help): m
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
Command (m for help): c
DOS Compatibility flag is set (DEPRECATED!)
Command (m for help): o
Building a new DOS disklabel with disk identifier 0xd8e780ff.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (with command 'c').
Command (m for help): w
fdisk: unable to write /dev/sdb: Bad file descriptor
You will not be able to write the partition table.
No, ako ti je particija prazna, jednostavnije ti je reformatirat je u NTFS iz Gparteda. 
