Differences between revisions 33 and 34
Revision 33 as of 2013-04-27 23:00:51
Size: 3379
Editor: BobProulx
Comment: Update etch examples to wheezy
Revision 34 as of 2013-04-27 23:02:24
Size: 3373
Editor: BobProulx
Comment: Remove useless use of cat
Deletions are marked like this. Additions are marked like this.
Line 79: Line 79:
# cat /etc/fstab | grep chroot # grep chroot /etc/fstab

Translation(s): Deutsch - English - Français - Italiano - Español


chroot on Unix-like operating systems is an operation that changes the apparent root directory for the current running process and its children.(Read more ...)

Basic Installation

Building a "chroot" is very easy in Debian.

You will need:

aptitude install binutils debootstrap

mkdir -p /srv/chroot/wheezy

debootstrap --arch i386 wheezy /srv/chroot/wheezy

chroot /srv/chroot/wheezy

Configuration

In general, it is necessary to create/edit key configuration points

Configuring a chroot is relatively static and very specific, it may be possible to dispense with the command "top-level" and directly edit files.

/etc/passwd
/etc/groups

/etc/hosts
/etc/resolv.conf

/etc/fstab

Mounting pseudo filesystems

/proc

proc on /proc type proc (rw)
sysfs on /sys sysfs kind (rw)

/dev/pts

In this case, the primary system, run the command:

mount --bind /dev/pts /srv/chroot/wheezy/dev/pts

Default Configurations

Generally the file /etc/fstab might look like this:

# grep chroot /etc/fstab
/dev /srv/chroot/wheezy/dev auto bind 0 0
/dev/pts /srv/chroot/wheezy/dev/pts auto bind 0 0
/proc /srv/chroot/wheezy/proc auto bind 0 0

Therefore mount on the primary system would be:

# mount | grep chroot
/dev on /srv/chroot/wheezy/dev -type none (rw, bind)
/dev/pts on /srv/chroot/wheezy/dev/pts kind none (rw, bind)
/proc on /srv/chroot/wheezy/proc type none (rw, bind)

Adding / removing packages

apt-get install deborphan

deborphan -a

apt-get remove --purge telnet manpages pppconfig ipchains ...

Complementary list svgalibg1 whiptail

apt-get install emacs23 local mc

Usage

Common examples of chroot usage:


ToDo - Clean up from French translation.