A few days back, I decided to upgrade from Fedora 19, to 24, and decided to do so using a usb stick. I downloaded the installer, and copied into the usb stick using dd.
- In order to create a mountable image you can use dd. May not be recommended for some people. You can read the fedora documentation for more details.
A couple of days later, when I wanted to use that usb stick, I found out I could do nothing with it since its file system was write-protected. Trying to format the device did not work for the same reason. Using the disks utility in Fedora 24 showed 3 partitions in the usb stick, but trying to delete them would result in an error related to block size. The driver reported one size, but linux reported another. After a bit of searching, I came to an ask ubuntu answer that recommended using mkfs.vfat to solve the problem.
- You can use mkfs.vfat, or one of the other mkfs.* programs to format a stubborn drive, or any other drive for that matter.
Being able to fix this problem, I decided to try with an old usb stick I got at a meet up back when Barnes & Noble were preparing to launch their android-based reader NOOK. The usb stick has never worked. It doesn’t mount, and reviewing it, there is no partition in it, let along a file system. I tried making a partition using the disk utility, but failed. I decided to use parted in the command line, but no luck, the device was write-protected. After a bit of searching, I found out you can use hdparm on write-protected devices to make them writeable. This did not work on my usb stick, which leaves me thinking that the device is just damaged.
- You can use parted to make partitions in a device
- You can use hdparm to set various option on drives, like write-protection.
Speaking about partitions, having a usb stick with more than one partition in it can be quite useful, and cool. Just remember that dumb windows doesn’t mount all of them, only the first one.
- Use mount to find out how a device is mounted.
- Use dosfsck to check and repair DOS file systems
I hope these tips prove useful at some point in your life as they have done in mine. Thanks to all that share wisdom around the net, what would we do without them…