Difference between revisions of "Development Team/Chroot"

From Sugar Labs
Jump to navigation Jump to search
m (moved Walter is a wanker 12/Chroot to Development Team/Chroot over redirect: revert)
 
(74 intermediate revisions by 11 users not shown)
Line 1: Line 1:
−
Sugar ought to be easy to run from chroots. For a variety of silly reasons, this isn't yet the case, but it might be soon. Ping [[User:Mstone|Michael]] with questions.
+
=== Status ===
  
−
=== Chroot Construction ===
+
* sugar-chroot-0.1 released: see [http://dev.laptop.org/git/users/mstone/sugar-chroot sugar-chroot]
  
−
There are lots of ways to create appropriate chroots; e.g. by hand, with debootstrap, with mock, etc.
+
=== Purpose ===
  
−
With debootstrap, you want something like
+
''You want to hack sugar. You don't want to fuss around. '''You want sugar-chroot.'''''
  
−
  debootstrap --arch i386 sid sid-root http://debian.lcs.mit.edu/debian
+
=== Usage ===
−
  sudo chroot sid-root /bin/bash -l
 
  
−
With mock, it would be more like
+
As excerpted from the '''[http://dev.laptop.org/git/users/mstone/sugar-chroot/plain/README README]''':
  
−
  mock -r fedora-devel-i386 --init
+
sugar-chroot consists of simple scripts. Download and unpack them like so:
−
  mock -r fedora-devel-i386 --shell
 
  
−
=== X11 ===
+
NV=sugar-chroot-0.1
 +
curl http://dev.laptop.org/~mstone/releases/SOURCES/$NV.tar.xz | tar Zxf $NV.tar.xz
 +
cd $NV
  
−
Most X11 servers are configured to disable TCP connections. This means that in order to get a working X connection we can:
+
To use them, pick a supported distro:
  
−
# bind-mount the X unix socket into the chroot.
+
DISTRO=debian
−
# ssh ''into'' the chroot with X11-forwarding enabled.
+
DISTRO=fedora
−
# enable TCP on an X server, e.g. a nested Xephyr.
 
  
−
We're going to try option (3) first:
+
To configure:
  
−
  Xephyr -ac :1
+
echo $DISTRO > conf/distro
 +
$EDITOR conf/$DISTRO.mk
  
−
::''NB: If you figure out how to make Xephyr bind only to localhost sockets (or how to make it use a custom xauth config), speak up!''
+
Then run
−
 
 
−
and, inside the chroot:
 
  
−
  export DISPLAY=localhost:1
+
sudo make r/distro
  
−
=== D-Bus ===
+
to install your chroot.
  
−
Sugar wants to be able to use global state stored in both HAL and NetworkManager, both of which live on the system bus. Consequently, we need to bind-mount
+
=== History ===
  
−
  mount --bind /var/run/dbus $CHROOT/var/run/dbus
+
See http://wiki.sugarlabs.org/index.php?title=Development_Team/Chroot&oldid=36911 for the manual instructions which sugar-chroot automates.
−
 
 
−
before entering the chroot. (Mock uses unshare() to enter a new mount-point namespace since this makes garbage collection of mountpoints much easier.)
 
−
 
 
−
With debootstrap, you'll also need to run some of
 
−
 
 
−
  mount -t proc proc $CHROOT/proc
 
−
  mount -t devpts devpts $CHROOT/dev/pts
 
−
  mount -t selinuxfs selinux $CHROOT/selinux
 
−
 
 
−
manually in order to get a working chroot.
 

Latest revision as of 21:33, 23 February 2010

Status

Purpose

You want to hack sugar. You don't want to fuss around. You want sugar-chroot.

Usage

As excerpted from the README:

sugar-chroot consists of simple scripts. Download and unpack them like so: 

NV=sugar-chroot-0.1
curl http://dev.laptop.org/~mstone/releases/SOURCES/$NV.tar.xz | tar Zxf $NV.tar.xz
cd $NV

To use them, pick a supported distro: 

DISTRO=debian
DISTRO=fedora

To configure: 

echo $DISTRO > conf/distro
$EDITOR conf/$DISTRO.mk

Then run 

sudo make r/distro

to install your chroot.

History

See http://wiki.sugarlabs.org/index.php?title=Development_Team/Chroot&oldid=36911 for the manual instructions which sugar-chroot automates.

Retrieved from "https://wiki.sugarlabs.org/index.php?title=Development_Team/Chroot&oldid=46703"