Formatting a disk

Daniel Carrera daniel.carrera at
Thu Apr 13 21:24:51 UTC 2006

Gary W. Swearingen wrote:
>>Does anyone have a rescue suggestion? (yes, I should have done a backup of hdb's MBR but I didn't). There must be a tool
>>that can bring sanity to a disk with a broken MBR.
> Rescue what, exactly?  You should be able to reformat the disk with:
>    dd if=/dev/zero of=/dev/hdb count=1   (or 16k, for kicks)
>    fdisk /dev/hdb
>    (etc)

I meant, get it to the point where I can use fdisk again and continue 
working. fdisk and qtparted both failed. But I've solved this now. 
sfdisk was able to fix the partition table, so I could use fdisk again.

Could you explain why I would do 16k? I was thinking that I'd want to do 
as little as possible to avoid breaking the partition table (which seems 
to be what made fdisk fail in the first place).

    /\/_/   A life? Sounds great!
    \/_/    Do you know where I could download one?

More information about the ubuntu-users mailing list