[NTLUG:Discuss] erasing ISO image from memory stick

[Ed Leach]

Robert Citek wrote:
> On Wed, Apr 16, 2008 at 3:47 PM, Ed Leach <ntlug at levelofdetail.com> wrote:
>>  If I do "fdisk /dev/scd" (as root) I get the message "Unable to open
>>  /dev/scd".
> 
> That's odd.  Can you insert your USB stick, run the following script,
> and post the contents of output.txt here:
> 
> true && (
> set -x
> cat /etc/issue.net
> cat /proc/partitions
> df -hTl
> ) &> output.txt
> 
> Regards,
> - Robert
> 
> _______________________________________________
> http://www.ntlug.org/mailman/listinfo/discuss
> 

Robert - Sure:

+ cat /etc/issue.net
Ubuntu 7.10
+ cat /proc/partitions
major minor  #blocks  name

    8     0   78150744 sda
    8     1   75135973 sda1
    8     2          1 sda2
    8     5    3012156 sda5
    8    16     998399 sdb
    8    17     997936 sdb1
+ df -hTl
Filesystem    Type    Size  Used Avail Use% Mounted on
/dev/sda1     ext3     71G  3.7G   64G   6% /
varrun       tmpfs    503M   84K  503M   1% /var/run
varlock      tmpfs    503M     0  503M   0% /var/lock
udev         tmpfs    503M   68K  503M   1% /dev
devshm       tmpfs    503M     0  503M   0% /dev/shm
lrm          tmpfs    503M   38M  466M   8%
/lib/modules/2.6.22-14-generic/volatile

-----------------------

Here is the fdisk output:

fdisk /dev/scd

Unable to open /dev/scd

---

fdisk /dev/scd0
You will not be able to write the partition table.
Note: sector size is 2048 (not 512)
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF
disklabel
Building a new DOS disklabel with disk identifier 0x9bd60a0d.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.

You must set cylinders.
You can do this from the extra functions menu.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by
w(rite)

Command (m for help): p

Disk /dev/scd0: 15 MB, 15988736 bytes
255 heads, 63 sectors/track, 0 cylinders
Units = cylinders of 16065 * 2048 = 32901120 bytes
Disk identifier: 0x9bd60a0d

      Device Boot      Start         End      Blocks   Id  System

Command (m for help):

----

Thanks,

Ed