On Sat, 2006-07-08 at 14:13 -0400, William L. Maltby wrote: > On Sat, 2006-07-08 at 21:01 +0300, Itay wrote: > > On Sat, 2006-07-08 at 19:48 +0300, Itay wrote: > > > > > > From: William L. Maltby <BillsCentOS at triad.rr.com> > > ><snip> > > Us n00bs have to stick together here! :-) Yup! > And being n00bs, we are permitted to expound at length with guesses > about what might be going on, giving the wizened cranky old pros someone > to pick on and soothe their savage egos! ;-) I've not read any devel > docs yet, so there may be a lot more going on. > From rom my reading, I think the device mapper (?) needs to see a partition > 86 to know to look inside the partition for the meta-data (placed there > by pvcreate/lvcreate?) that is used to generate the devices. My *guess* > is if no type 86 is found it means no pvdata is garnered and > no /dev/mapper/VolGroup* and no /dev/VolGroup* symlinks are made (or > wrong ones are made or left over from elsewhere?). > I think if it finds one or more type 86 partitions, it builds all > the /dev/mapper lvms and symlinks it needs. This includes proper > association of minor device to vg so you don have multiple physical vols > switching places on you every time you boot. > Anyway, that's my SWAG (Scientific Wild-Assed Guess) about > what's going on. This is far-far better than my guess. I understand very little of all this volume management and device mapping. > When it's all working, be sure and post with a "[SOLVED]" added to the > subject and a summary of your fixes as a courtesy to other list members > and future searchers. Sure. Itay