Re: devfs and lvm

["Benedict Verheyen" <linux4bene@pandora.be>]

----- Original Message -----
From: "Manolis Tzanidakis" <mtzanidakis@freemail.gr>
To: <debian-user@lists.debian.org>
Sent: Thursday, October 30, 2003 1:49 PM
Subject: Re: devfs and lvm

[20031030] Benedict Verheyen <linux4bene@pandora.be> wrote:

> Hi,

Hello

> currently my server (2.4.21) is running LVM. All partitions are on
> LVM except a boot partition. I would like to move to devfs.
> Any good documents or howto's out there that explain how to set
> this up. I understand that i will need to install devfsd and
> that i might have to change the root boot option i now specify
> for grub as root=3a00.
> Any other significant changes/difficulties?

Just install a kernel with devfs (& mount devfs at boot) enabled. Note
that you won't need /dev/pts with devfs so u can disable it in kernel
config. Install devfsd & u' re done, no modification necessary. However
if you run grub & use update-grub, do:

$ cd /boot/grub
$ mv device.map device.map.old
$ grub-install /dev/hdX (replace X with your drive)
$ update-grub

--

It worked like a charm. I have put this into my
grub configuration (maybe usefull for other people):

title  Debian GNU/Linux, 2.4.21.041103
root  (hd0,0)
kernel  /vmlinuz-2.4.21.041103 root=3a00 vga=791 ramdisk=8192
devfs=mount
initrd  /initrd-lvm-2.4.21.gz
savedefault
boot

I will test if i can't use root=/dev/main/lv_root instead of the hex
numbers (3a00). I do not find any info on grub and the hex thingie.

I do have some questions:

1. When i do "ls -la /dev" it's still filled with a lot of links. Do i
have
to remake the dir dev to start of with a clean version?

2. df returns all partitions as /dev/main/lv* except for
the boot which is displayed as /dev/ide/host0/bus0/target0/lun0/part
Why isn't this shown as /dev/hda1? It's set as /dev/hda1 in my
fstab file.

Thanks,
Benedict