Groups > linux.debian.user > #161973

Re: Attempt to Move Root

From	David Baron <d_baron@012.net.il>
Newsgroups	linux.debian.user
Subject	Re: Attempt to Move Root
Date	2015-12-21 21:50 +0100
Message-ID	<qIfz4-2SZ-3@gated-at.bofh.it> (permalink)
References	<qHK2e-8f2-13@gated-at.bofh.it> <qIaJ4-8gD-21@gated-at.bofh.it> <qIeMG-2kK-13@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Monday 21 December 2015 14:53:16 Stephen Powell wrote:
> On Mon, 21 Dec 2015 10:36:48 -0500 (EST), David Baron wrote:
> > On Monday 21 December 2015 10:25:15 Stephen Powell wrote:
> >> Obviously, the LILO map file is on the IDE drive.  Is your /boot
> >> partition
> >> on the IDE drive?  If so, you cannot remove it.  The /boot partition must
> >> be a partition on a physical drive, but obviously it cannot be on the
> >> drive
> >> that you want to remove.
> > 
> > The boot is not a separate partition but is a directory on the root so
> > travels with it.  Copy on both old and new directories.
> 
> No, that won't work.  If the root filesystem is an LVM2 logical volume, then
> /boot *cannot* be part of the root filesystem.  To be more rigorous, there
> will be a /boot directory in the / filesystem, but it must be an *empty*
> directory, so that another filesystem can be mounted on that directory. 
> Another filesystem must get mounted on the /boot directory in the root
> filesystem, and that filesystem must be made on a partition of a *real*
> disk which is accessible via the BIOS.  It cannot be an LVM2 logical
> volume.  The boot partition contains the LILO map file (by default,
> /boot/map) as well as the kernel image file and the initial RAM filesystem
> image file.  LILO reads these files at boot time via BIOS calls, and the
> BIOS does not support LVM2 logical volumes.  You can have a physical disk
> with two partitions on it, one partition of which is an LVM2 physical
> volume which is part of an LVM2 logical volume, and the other one of which
> is a stand-alone partition which is mounted on /boot. But the filesystem
> which gets mounted on /boot must *not* be an LVM2 logical volume.  I
> thought I made that clear before.  Also, the LILO boot sector must be
> either on the MBR of a *real* disk, or the first sector of a partition on a
> *real* disk.
> 
> > The loop that I get is something more problematic.
> 
> Agreed.  As I said before, there is probably something missing from the
> initial RAM file system that needs to be there for the kernel to mount an
> LVM2 logical volume.

> ===========================
> 
> Could he not dd them onto another drive?
> ...
>He can copy the /boot data to another drive, not necessarily
>with dd.  In fact, if he wants to be able to remove the
>existing IDE drive, he must.  But he cannot copy it to an
>LVM2 logical volume.  The data in /boot (after copying)
>must be on a partition on a physical disk which is accessible
>via the BIOS and not on the old IDE drive which he wishes
>to remove.  The / filesystem can be an LVM2 logical volume,
>provided the initial RAM filesystem contains sufficient files
>to mount an LVM2 logical volume, but the filesystem which
>gets mounted on /boot must be made on a partition of a *real*
>disk which is not scheduled to be removed from the system.


Repeat: NO LV's

Thread

Attempt to Move Root David Baron <d_baron@012.net.il> - 2015-12-20 12:10 +0100
  Re: Attempt to Move Root Stephen Powell <zlinuxman@wowway.com> - 2015-12-20 19:20 +0100
    Re: Attempt to Move Root David Baron <d_baron@012.net.il> - 2015-12-20 22:00 +0100
      Re: Attempt to Move Root Stephen Powell <zlinuxman@wowway.com> - 2015-12-20 22:40 +0100
  Re: Attempt to Move Root David Christensen <dpchrist@holgerdanske.com> - 2015-12-21 10:00 +0100
    Re: Attempt to Move Root David Baron <d_baron@012.net.il> - 2015-12-21 11:00 +0100
      Re: Attempt to Move Root Stephen Powell <zlinuxman@wowway.com> - 2015-12-21 16:30 +0100
        Re: Attempt to Move Root Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-21 16:40 +0100
          Re: Attempt to Move Root Stephen Powell <zlinuxman@wowway.com> - 2015-12-21 21:40 +0100
        Re: Attempt to Move Root David Baron <d_baron@012.net.il> - 2015-12-21 16:40 +0100
          Re: Attempt to Move Root Stephen Powell <zlinuxman@wowway.com> - 2015-12-21 21:00 +0100
            Re: Attempt to Move Root David Baron <d_baron@012.net.il> - 2015-12-21 21:50 +0100
              Re: Attempt to Move Root Stephen Powell <zlinuxman@wowway.com> - 2015-12-21 22:20 +0100
                Re: Attempt to Move Root David Baron <d_baron@012.net.il> - 2015-12-22 08:50 +0100
            Re: Attempt to Move Root Nicolas George <george@nsup.org> - 2015-12-22 17:00 +0100
              Re: Attempt to Move Root John Hasler <jhasler@newsguy.com> - 2015-12-22 18:40 +0100
                Re: Attempt to Move Root Nicolas George <george@nsup.org> - 2015-12-22 18:40 +0100
                Re: Attempt to Move Root Nicolas George <george@nsup.org> - 2015-12-22 19:50 +0100
                Re: Attempt to Move Root Sven Hartge <sven@svenhartge.de> - 2015-12-22 20:50 +0100
                Re: Attempt to Move Root Brian <ad44@cityscape.co.uk> - 2015-12-22 21:20 +0100
                Re: Attempt to Move Root Nicolas George <george@nsup.org> - 2015-12-22 23:10 +0100
                Re: Attempt to Move Root Sven Hartge <sven@svenhartge.de> - 2015-12-22 23:30 +0100
                Re: Attempt to Move Root Nicolas George <george@nsup.org> - 2015-12-23 10:40 +0100
                Re: Attempt to Move Root Sven Hartge <sven@svenhartge.de> - 2015-12-24 02:20 +0100
                Re: Attempt to Move Root Nicolas George <george@nsup.org> - 2015-12-24 12:20 +0100
                Re: Attempt to Move Root Pascal Hambourg <pascal@plouf.fr.eu.org> - 2015-12-27 14:10 +0100
                Re: Attempt to Move Root Nicolas George <george@nsup.org> - 2015-12-27 14:50 +0100
                Re: Attempt to Move Root Pascal Hambourg <pascal@plouf.fr.eu.org> - 2015-12-27 15:20 +0100
                Re: Attempt to Move Root Nicolas George <george@nsup.org> - 2015-12-27 15:40 +0100
                Re: Attempt to Move Root Pascal Hambourg <pascal@plouf.fr.eu.org> - 2015-12-27 16:00 +0100
                Re: Attempt to Move Root Nicolas George <george@nsup.org> - 2015-12-27 16:20 +0100
                Re: Attempt to Move Root Nicolas George <george@nsup.org> - 2015-12-28 03:50 +0100
                Re: Attempt to Move Root Pascal Hambourg <pascal@plouf.fr.eu.org> - 2015-12-28 03:50 +0100
                Re: Attempt to Move Root Gene Heskett <gheskett@shentel.net> - 2015-12-27 16:10 +0100
                Re: Attempt to Move Root Petter Adsen <petter@synth.no> - 2016-01-01 10:20 +0100
                Re: Attempt to Move Root Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-01-01 11:40 +0100
                Re: Attempt to Move Root Sven Hartge <sven@svenhartge.de> - 2015-12-28 03:50 +0100
                Re: Attempt to Move Root Pascal Hambourg <pascal@plouf.fr.eu.org> - 2015-12-28 03:50 +0100
                Re: Attempt to Move Root Brian <ad44@cityscape.co.uk> - 2015-12-22 23:40 +0100
                Re: Attempt to Move Root Stephen Powell <zlinuxman@wowway.com> - 2015-12-25 17:10 +0100
                Re: Attempt to Move Root John Hasler <jhasler@newsguy.com> - 2015-12-22 19:50 +0100
                Re: Attempt to Move Root (SOLVED!!) David Baron <d_baron@012.net.il> - 2015-12-23 10:00 +0100
                Re: Attempt to Move Root (SOLVED!!) Anders Andersson <pipatron@gmail.com> - 2015-12-23 12:50 +0100
                Re: Attempt to Move Root (SOLVED!!) David Baron <d_baron@012.net.il> - 2015-12-23 13:20 +0100
              Re: Attempt to Move Root Stephen Powell <zlinuxman@wowway.com> - 2015-12-25 16:40 +0100
                Re: Attempt to Move Root Stephen Powell <zlinuxman@wowway.com> - 2015-12-28 05:00 +0100
      Re: Attempt to Move Root David Christensen <dpchrist@holgerdanske.com> - 2015-12-21 20:00 +0100

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