On Thu, Aug 29 2013, Canek Peláez Valdés wrote: > As James said, the docs are being reorganized. However, I did a > systemd+LVM installation (just because I was getting tired of not > knowing what the fuss was all about), and (in my experience) there are > almost no changes from the regular installation in the handbook. > > I put everything in LVM (/, /boot, everything).
I am not so ambitious. /+/boot+/usr one ext4 partition not on lvm > From my notes, the only changes are: > >>From the livecd: > 1. Use partitions, not whole disks (GRUB2 got confused when I tried to > use whole disks). > 2. Set the partition type as LVM (8e in fdisk). > 3. Create the Physical Volume, the Volume Group, and the Logical > Volumes as desired. > 4. Continue the normal installation, just using /dev/vg0/lvolX (or > whatever names you choose). There is a little more (activating or something the LVs) especially if you shutdown in the middle of the installation and resume it later. > After the chroot and emerging the kernel package: > 1. Se the LVM options in the kernel. Compile, install it. > 2. Emerge systemd. > 3. Emerge dracut (USE="device-mapper", DRACUT_MODULES="systemd lvm", at > least). > 4. Set add_dracutmodules="systemd" in /etc/dracut.conf. > 5. Weirdly, set lvmconf="no" in /etc/dracut.conf. I didn't even > touched /etc/lvm/lvm.conf, so I think leaving it out makes dracut to > autoconfigure it. If I put lvmconf="yes", the boot hangs. Didn't > investigated why. > 6. Emerge GRUB2 (USE="device-mapper mount"); I don't know if GRUB > works with LVM, but GRUB2 does, so I used that. > 7. Set GRUB_PRELOAD_MODULES="lvm", > GRUB_CMDLINE_LINUX="init=/usr/lib/systemd/systemd", in > /etc/default/grub. > 8. Generate initramfs, generate /boot/grub2/grub.cfg, install GRUB2 > with grub2-install. > 9. Reboot. Everything works. > > GRUB2 handles LVM just fine, I believe, but my LVM setup was dead > simple (the VG was just the only partition of all my disks). > dracut+systemd takes care of everything else; I didn't even had to do > something special in fstab, since I used labels. > > To extend/reduce your Logical Volumes you will need a livecd, or a > more complex initramfs, though. > > Regards. I have experience with LVM, but not systemd or dracut or initramfs * both grub and grub2 support lvm * Never did 2,3,4,5,7, or the initramfs part of 8 My goal is to have this system (an older laptop) setup like my current laptop (grub2, openrc, root+/usr, etc). Then I will convert OLD to systemd. Once I have done this and moved my work from CURRENT to OLD, I will convert CURRENT to systemd and move back. thanks to you and james for your helpful comments. allan
