debian 8 change my 32gb usb drive's file system to iso9660 and now it is WRITE PROTECTED.
by masoodshy from LinuxQuestions.org on (#5AQ4W)
Dear Sir:
Some days ago I downloaded the latest Debian 8.7 DVD from debian.org. I booted in the live mode and every thing worked fine. I had to copy some 10GB of data to 32GB usb flash. After copy and paste command it started copying data. Copy started very fast gradually got slower and slowest and ultimately failed to copy. Checking the flash on other system it appeared the usb flash has become write protected. A partition utility proved that usb flash's file system has been changed to ISO9660. i.e. the usb flash has become a CD like media and nothing could be written on to it but the files already existing on usb flash can be read fine or copied to any other location as from normal CD but cannot be deleted. To confirm if it was Debian 8.7's trick I inserted another usb flash and same thing happened with it but pull the flash in between copy process, it only got corrupted, and later I was able to reformat it to ntfs. Please help me how can I bring my 32GB flash back to normal ntfs or fat32. Before this I have been using Debian 7 for many years without any problem. Please reply as early as possible.
Thanks,
M Masood Shy.
Some days ago I downloaded the latest Debian 8.7 DVD from debian.org. I booted in the live mode and every thing worked fine. I had to copy some 10GB of data to 32GB usb flash. After copy and paste command it started copying data. Copy started very fast gradually got slower and slowest and ultimately failed to copy. Checking the flash on other system it appeared the usb flash has become write protected. A partition utility proved that usb flash's file system has been changed to ISO9660. i.e. the usb flash has become a CD like media and nothing could be written on to it but the files already existing on usb flash can be read fine or copied to any other location as from normal CD but cannot be deleted. To confirm if it was Debian 8.7's trick I inserted another usb flash and same thing happened with it but pull the flash in between copy process, it only got corrupted, and later I was able to reformat it to ntfs. Please help me how can I bring my 32GB flash back to normal ntfs or fat32. Before this I have been using Debian 7 for many years without any problem. Please reply as early as possible.
Thanks,
M Masood Shy.