[linux-lvm] Debian 3.0, kernel 2.4.18 booting with a LVM root fs LVM doesn't work

[LEBRETON Philippe]

Andy Baillie wrote:

> > "Heinz J . Mauelshagen" wrote:
> >
> >> On Thu, Sep 26, 2002 at 01:30:48PM +0200, LEBRETON Philippe wrote:
> >> > "Heinz J . Mauelshagen" wrote:
> >> >
> >> > > On Thu, Sep 26, 2002 at 12:19:54PM +0200, LEBRETON Philippe wrote:
> >> > > > hello,
> >> > > >
> >> > > > My configuration is :
> >> > > >
> >> <SNIP>
> >> >
> >> > yes my initrd is read-only but hox i can made initrd read-write?
> >>
> >> boot parameter "rw" or "read-write" in lilo.conf.
> >>
> >> >
> >> >
> >> > _______________________________________________
> >> > linux-lvm mailing list
> >> > linux-lvm at sistina.com
> >> > http://lists.sistina.com/mailman/listinfo/linux-lvm
> >> > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
> >>
> >> --
> >>
> >> Regards,
> >> Heinz    -- The LVM Guy --
> >>
> >> *** Software bugs are stupid.
> >>     Nevertheless it needs not so stupid people to solve them ***
> >>
> >> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=->>
> >> Heinz Mauelshagen                                 Sistina Software
> >> Inc. Senior Consultant/Developer                       Am Sonnenhang
> >> 11
> >>                                                   56242 Marienrachdorf
> >>                                                   Germany
> >> Mauelshagen at Sistina.com                           +49 2626 141200
> >>                                                        FAX 924446
> >> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=->>
> >> _______________________________________________
> >> linux-lvm mailing list
> >> linux-lvm at sistina.com
> >> http://lists.sistina.com/mailman/listinfo/linux-lvm
> >> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
> >
> > i change my lilo.conf :
> > image=/boot/vmlinuz-2.2.18-smp
> >        label=LinuxLVM
> >        initrd=/boot/initrd-lvm.img
> >        root=/dev/rootvg/root
> >        read-write
> >        ramdisk=8192
> >
> > The problem is the same.
> > The read-write parameter is for /dev/rootvg/root not for the RAM Disk?
> > And mount, vgscan can't to the RAM Disk.
> > I can't mount my root filesystem because LVM is not initialize (vgscan,
> > vgchange not working in RAM Disk)
> >
> the problem is not the root filesystem but probably the initrd filesystem.
> Are you a debian user, if so the default kernel make procedures give you a
> cram filesystem which is only ever read-only. The default kernel build if
> Iremember rightly doesn't even have ext2 built into the kernel but loads it
> as a module when running through the initrd boot process.
> To get round this you will have to ensure a writable fs is built into the
> kernel (not a module) and then mount the initrd image on a loopback device
> then repeat with an ext2 filesystem created using mke2fs, copy from the
> first loopback to the second, unmount both and compress the ext2 fs
> version and copy this back to your /boot partition.
> I did it a couple of times then accepted that until various changes are
> made to the debian kernel build process you won't have default debian
> systems able to boot into root on lvm setups. and went back to a normal
> root device.
> Regards
> Andy
>
> --
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>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm at sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

Thanks,
it's OK.
I compile my kernel with ext2.
I can mount ext2 ram fs and vgscan and vgchange work.

Thanks

Philippe LEBRETON