On Wed, Sep 29, 2010 at 05:28:33PM +0200, Karel Zak wrote:

On Wed, Sep 29, 2010 at 02:55:59PM +0100, Richard W.M. Jones wrote:

...

On Wed, Sep 29, 2010 at 11:11:48AM +0200, Karel Zak wrote:

...

On Sun, Sep 26, 2010 at 05:42:21PM +0100, Richard W.M. Jones wrote:

...

In any case I'll probably write a small utility which just zaps the partition table without touching the rest of the bootloader.

Maybe we can add this functionality to wipefs(8), libblkid is already able to detect and parse almost all partition table formats.

Coincidentally I tried using wipefs within libguestfs (but not successfully yet). It really only wipes filesystems, which I guess should be obvious from the name. I think it should be extended to wipe other stuff to: LVM, partition tables, RAID metadata being three obvious ones.

The latest version (F-14) also supports RAIDs and LVM.

Karel

$ wipefs /home/images/filesystems/mdraid.img

offset type ---------------------------------------------------------------- 0x9f0000 linux_raid_member [raid] UUID: 37c76b91-011a-05c5-d30c-1fd4c5c3dbbc

$ wipefs /home/images/filesystems/lvm2.img offset type ---------------------------------------------------------------- 0x218 LVM2_member [raid] UUID: Vynv4k-APH8-xQER-HSBb-8VJ3-SvFF-PB5O1U

OK, that's good to know. I'll add a wipefs wrapper to libguestfs at some point. It seems a more reliable way to do it than our current method: http://libguestfs.org/guestfs.3.html#guestfs_zero Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones New in Fedora 11: Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 70 libraries supprt'd http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw