Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 29/01/14 06:40 PM, Paul O'Rorke wrote: > Hi all, > > a quick question. I have a DRBD resource that was once used as a drive > for a Linux machine that used LVM. I want to create a new VM (KVM > based) that uses this resource. I can start the installation OK - the > installer 'sees' the 300GB drive (/dev/drbd/by-res/<resource>) but when > I try using the partition manager in the Debian (guest) installer it > complains that there is already LVM data on there and it won't allow me > to use the drive without first cleaning up the LVM config on there. > > Is it possible to mount the resource in the host and use the command > line LVM tools to 'clean' that up? I was thinking that maybe I could > use *dd* to clone a new clean resource of the same size but that seems > silly. > > Does anyone have any suggestions for 'formatting' this resource so that > it looks again like a clean un-partitioned disk? > > Thanks in advance. Simplest would be to write zeros to the device; dd if=/dev/zero of=/dev/drbd/by-res/<resource> bs=4M If you know that the LVM metadata is at the first or end of the drive, you can limit the dd to count=X or use of offset to hit the end of the resource. -- Digimer Papers and Projects: https://alteeve.ca/w/ What if the cure for cancer is trapped in the mind of a person without access to education?