Never mind. A little more perseverance and I learned that it was my IDE cdrw drive. I needed to add "append="ide-scsi"" to the relevant /etc/lilo.conf stanza and then add ide-scsi to /etc/modules so that it loads at boot. Shouldn't LVM check against such devices being present and then skip over them though? Matt On Tue, 2002-01-08 at 16:06, Matthew Kennedy wrote: > Hello, > > I'm having some trouble getting LVM to work on a Debian system. The > actions I performed are bellow (--verbose --debug versions are > attached). Bascically, I get "ERROR "pv_read(): PV identifier invalid" > reading physical volumes" when I run vgcreate even though the PV I > initialized succeeded. > > My user tools are IOP10. Kernel is 2.4.17. > > Thanks > > Matt >