[linux-lvm] Severe problem: data lost while adding a partition

[Steven Lembark]

-- Sander Alberink <alberink at stamppot.demon.nl>

> Heinz, all,
>
> I really appreciate your help in this. However, I am rather reluctant to
> dive in and be hasty in my commands. I really don't want to destroy my
> data.... As I understand it, pvcreate -ff would re-initialize the
> physical volume. As I understand it, I will have to add them to a volume
> group again. But will the filesystem still be intact after that then?
>
> Sorry if this sound like a beginner question to you. It very well might
> be, but I'd rather be careful....

Thing to understand is that LVM commands update a small
header on the phyiscal volume. You can munge the LVM
portion without touching your data at all. In this case
the data has no way of knowing that anything happend to
the LVM portion of life: they live in entirely different
parts of the disk drive.


--
Steven Lembark                               2930 W. Palmer
Workhorse Computing                       Chicago, IL 60647
                                            +1 773 252 1080