[SOLVED] How to undo USB Startup Disk? (It's Read-Only)

[JAYCEE1]

I made a USB startup disk using the Live CD of Ubuntu 8.10. (Under Admin>Create a USB Startup disk.) I made it on a 2GB Cruzer thumb drive that mounts at /media/disk. I now want to clear out this USB drive but the filesystem is read-only.

How can I erase this read-only startup disk?

Thanks!


sudo fdisk -l



[sudo] password for user1:

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00027d78

Device Boot Start End Blocks Id System
/dev/sda1 * 1 9541 76638051 83 Linux
/dev/sda2 9542 9729 1510110 5 Extended
/dev/sda5 9542 9729 1510078+ 82 Linux swap / Solaris

Disk /dev/sdb: 2000 MB, 2000682496 bytes
64 heads, 63 sectors/track, 969 cylinders
Units = cylinders of 4032 * 512 = 2064384 bytes
Disk identifier: 0x000a3264

Device Boot Start End Blocks Id System
/dev/sdb1 * 1 969 1953439+ 6 FAT16



sudo blkid




/dev/sda1: UUID="90c12719-683c-4cb9-b555-8a715bc42bdb" TYPE="ext3"
/dev/sda5: TYPE="swap" UUID="e3ff2d9e-34ee-4d26-a2e6-96dc7a758694"
/dev/sdb1: SEC_TYPE="msdos" UUID="4C6B-0F85" TYPE="vfat"


cat /etc/fstab




# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# /dev/sda1
UUID=90c12719-683c-4cb9-b555-8a715bc42bdb / ext3 relatime,errors=remount-ro 0 1
# /dev/sda5
UUID=e3ff2d9e-34ee-4d26-a2e6-96dc7a758694 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
u



df -h



Filesystem Size Used Avail Use% Mounted on
/dev/sda1 73G 8.9G 60G 13% /
varrun 252M 112K 252M 1% /var/run
varlock 252M 4.0K 252M 1% /var/lock
udev 252M 64K 252M 1% /dev
devshm 252M 12K 252M 1% /dev/shm
lrm 252M 38M 215M 15% /lib/modules/2.6.24-16-generic/volatile
gvfs-fuse-daemon 73G 8.9G 60G 13% /home/user1/.gvfs
/dev/sdc1 1.9G 248M 1.7G 13% /media/disk
/dev/sdb1 1.9G 1017M 891M 54% /media/disk-1






id


uid=1000(user1) gid=1000(user1) groups=4(adm),20(dialout),24(cdrom),25(floppy),29( audio),30(dip),44(video),46(plugdev),107(fuse),109 (lpadmin),115(admin),1000(user1)

[Crooksey]

Hey there try..



sudo su -
cfidsk /dev/sdb


Then use the cfdisk program to delete all partitions, then make a new partition out of all the free space, with the vfat or fat32 format.

[cariboo]

It is all one partition, so you can use nautilus as root, use gparted or practice using the rm command to clear the drive.

The easiest way is to make sure you have gparted installed, it is available in the repositories, then go to System-->Administration-->Partition Editor and just delete the partition and create a new one.

To use nautilus as root, press Alt-F2 and type:


gksu nautilus

Then navigate to /media/disk-1, and delete all the files.

To use the rm command, have a look at:


man rm

Jim

[JAYCEE1]

It is all one partition, so you can use nautilus as root, use gparted or practice using the rm command to clear the drive.

The easiest way is to make sure you have gparted installed, it is available in the repositories, then go to System-->Administration-->Partition Editor and just delete the partition and create a new one.

To use nautilus as root, press Alt-F2 and type:


gksu nautilus

Then navigate to /media/disk-1, and delete all the files.

To use the rm command, have a look at:


man rm

Jim


Thanks Cariboo!

I pressed Alt-F2 and typed gksu nautilus. Then I clicked on my USB drive and saw all of the files on the USB drive. I right-clicked each file and selected "Move to Trash."

In order to get my memory back on the stick, I had to then click on the trash icon and click empty trash. After that, I had my memory back.

Thanks!