I was attempting to install Gentoo 2004.0 on an existing volume group created with SuSE 9.0 (LVM1). However the volume group was not detected during boot. None of the kernel modules required by LVM were loaded either. I had to load them manually. And even once that was done, running the usual commands for creating /dev entires for the existing volume group did not work. The commands generated no errors, in fact they even seemed to work, but there were no results. No /dev entries were created for my volume group/logical volumes. Reproducible: Always Steps to Reproduce: 1. Boot from Gentoo 2004.0 LiveCD Basic 2. Load LVM-related modules manually (insmod lvm-mod, insmod dm-mod) 3. Run vgmknodes to have /dev entries created for all detected volume groups Actual Results: Nothing. No error message (except that /dev/cdrom was read-only, which is normal). No /dev entries were created. Running vgmknodes -v generated output correctly naming all detected volume groups, and by all appearances the command was successful. However no /dev entries were created, and the volume group remained unuseable. Installation was therefore impossible. Expected Results: Everything should have been detected and loaded during boot, like other distributions do so well already! The volume group(s) should have been listed in /dev right from the start without any interaction from me. This is a very simple volume group called "system" I created many months ago using SuSE 9.0 Professional. It is successfully detected and useable by Fedora Core 1, Red Hat 9 and Mandrake 9, among others. There are many logical volumes within this volume group, including one named "gentoo" that was created specifically for installing Gentoo. All the logical volumes within this volume group are accessible by all the above-mentioned distributions. I find this particularly frustrating because of the following statement in the Gentoo Handbook Installation Instructions; "If you are booted from a Gentoo LiveCD then you have the possibility to use EVMS or LVM2 to increase the flexibility offered by your partitioning setup. During the installation instructions, we will focus on "regular" partitions, but it is still good to know EVMS and LVM2 are supported as well." I had based my installation plans on this statement right from the start.
*** This bug has been marked as a duplicate of 40394 ***