RE: Question about Dual boot Linux on one box
Some of the filesystem lend themselves better to dual-mounting than
others. As Sun Liwen pointed out, mounting the swap partition on both
systems makes is a good idea. Mounting /home on both systems is also an
excellent idea. If you do this, all you applications should maintain
settings acroos both installations. /var/www should be fine to share
also, assuming that this is the document root of an Apache installation.
Sharing /boot and and / is not a good idea however. Particularly since
you don't have a separate /etc where all the machine specific
configuration files live. You can get a lot of information on this
topic from the Filesystem Hierarchy Standard
(http://www.pathname.com/fhs/).
An advanced technique that you could consider is not to dual-boot at
all, but to run Debian in chroot environment under gentoo. In this
setup, both distributions can run simultaneously while sharing the same
kernel. I haven't this myself I'm afraid but there is plenty of
literature describing it.
> -----Original Message-----
> From: Sun Liwen [mailto:mozaiti@gmail.com]
> Sent: Wednesday, 1 December 2004 4:39 PM
> To: Lian Liming; debian-user@lists.debian.org
> Subject: Re: Question about Dual boot Linux on one box
>
>
>
> ----- Original Message -----
> From: "Lian Liming" <lianliming@realss.com>
> To: <debian-user@lists.debian.org>
> Sent: Wednesday, December 01, 2004 12:14 PM
> Subject: Question about Dual boot Linux on one box
>
>
> > Hi all,
> > I have a box with a pre-installed gentoo system. Since
> that system is
> > installed by my friend and we share the same box, i can't
> destroy it. I'd
> > like to use Debian system. So i am thinking about two boot
> linux system --
> > Gentoo && Debian -- working on the same box.
> > There are several questions that i am quite confused as
> following:
> >
> > 1) the partitions.
> > The pre-installed gentoo system has the following
> partitions:
> > /dev/hda1 mount at /boot
> > /dev/hda2 mount at swap
> > /dev/hda3 mount at /
> > /dev/hda4 mount at /home
> > /dev/hda5 mount at /var/www
> > and there is another partition /dev/hda6 has no
> filesystem on it.
> > My questions about partitions is that, to install
> debian system on
> > it. Is it possible to share /boot, /home, /var/www with the
> gentoo system?
> > The advantage doing this is that we can share the
> information better. If
> > we share /home, then i can have accounts on both Gentoo and
> Debian system.
> > And the two accounts on both system share the same
> directory, i don't need
> > have two copy of my personal datas.
> >
> > Another further and *crazy* question is that : can
> i share "/"
> > partition with Gentoo && Debian? I know that they are all
> linux system
> > with similar filesystem structure, but Gentoo and Debian have their
> > different features, for example, Gentoo has a way to hold
> its portages
> > system. To share the "/" really sounds crazy, but i just
> wonder is it
> > possible? Maybe someone else has tried on this.
> > 2) the boot loader program
> > I am not familiar with the boot loader on Linux so
> this is another
> > question that confused me so much.
> > The pre-installed Gentoo has installed "Grub" and
> the boot loader
> > is installed on mbr. So if i install debian, Should i
> installed another
> > boot loader such as Grub or lilo?
> > Or is it possible that i don't install boot loader
> on debian , and
> > just use the "grub" on the Gentoo, add some entries to the
> grub config
> > file so that i can select debian on the system boot?
> >
> > 3) insteresting kernel question
> > It is really an insteresting question, can i use the kernel
> > compiling on the other system? For example, i compile a
> 2.6.9 kernel on
> > Gentoo, and i just copy the binary kernel to Debian system
> and boot from
> > the kernel on Debian. Actually, this question is not
> important. I am just
> > interested on this topic.
> >
> >
> > I am not a linux guru and sorry for my poor English,
> if i can't
> > explain something clear, please think free to point it out.
> > Thank you very much for any suggestion.
>
>
> hi,
> i have a box with debian and gentoo dual boot.
> they share swap partition only.
> but i play a little trick, i make the admin user on the
> diferent system have
> the
> same uid number, then i can share files.
>
> i think you can install only one grub to boot the two system
> with editing
> menu.lst.
> ps: two grub is ok.
>
> / directory is not suitable to share.
>
>
> poor english, too.
>
>
>
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