Difference between revisions of "Install bundled 32-bit system in 64-bit system"
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== Make the i686 Chroot == | == Make the i686 Chroot == | ||
+ | === tl;dr version === | ||
+ | ==== Setup ==== | ||
+ | For those wanting a single copy/paste: | ||
+ | export LOCATION=/opt/arch32 # more flexibility here if users wish an alternative location for the chroot | ||
+ | mkdir $LOCATION | ||
+ | sed -e 's/\$arch/i686/g' /etc/pacman.d/mirrorlist > $LOCATION/mirrorlist | ||
+ | sed -e "s@/etc/pacman.d/mirrorlist@$LOCATION/mirrorlist@g" -e '/Architecture/ s,auto,i686,' /etc/pacman.conf > $LOCATION/pacman.conf | ||
+ | mkdir -p $LOCATION/var/{cache/pacman/pkg,lib/pacman} | ||
+ | pacman --root $LOCATION --cachedir $LOCATION/var/cache/pacman/pkg --config $LOCATION/pacman.conf -Sy | ||
+ | pacman --root $LOCATION --cachedir $LOCATION/var/cache/pacman/pkg --config $LOCATION/pacman.conf -S base base-devel sudo | ||
+ | mv -f $LOCATION/mirrorlist $LOCATION/etc/pacman.d | ||
+ | rm -f $LOCATION/pacman.conf | ||
+ | sed -i 's/CheckSpace/#CheckSpace/' $LOCATION/etc/pacman.conf | ||
+ | cd $LOCATION/etc | ||
+ | cp /etc/passwd* . | ||
+ | cp /etc/shadow* . | ||
+ | cp /etc/group* . | ||
+ | cp /etc/sudoers . | ||
+ | cp /etc/resolv.conf . | ||
+ | cp /etc/localtime . | ||
+ | cp /etc/locale.gen . | ||
+ | cp /etc/profile.d/locale.sh profile.d | ||
+ | cp /etc/vimrc . | ||
+ | cp /etc/mtab . | ||
+ | cp /etc/inputrc . | ||
+ | |||
+ | Now skip to the [[#Create_an_Arch32_Daemon_Script_and_Systemd_Service|daemon section]]. | ||
+ | |||
===Install the Base 32-bit System=== | ===Install the Base 32-bit System=== | ||
1. Create the directory: | 1. Create the directory: | ||
− | + | mkdir /opt/arch32 | |
2. Generate temporary [[pacman]] configuration files for chroot: | 2. Generate temporary [[pacman]] configuration files for chroot: | ||
− | + | sed -e 's/\$arch/i686/g' /etc/pacman.d/mirrorlist > /opt/arch32/mirrorlist | |
− | sed -e 's@/etc/pacman.d/mirrorlist@/opt/arch32/mirrorlist@g' -e '/Architecture/ s,auto,i686,' /etc/pacman.conf > /opt/arch32/pacman.conf | + | sed -e 's@/etc/pacman.d/mirrorlist@/opt/arch32/mirrorlist@g' -e '/Architecture/ s,auto,i686,' /etc/pacman.conf > /opt/arch32/pacman.conf |
*These files would conflict with the normal pacman files, which will be installed in the later steps. | *These files would conflict with the normal pacman files, which will be installed in the later steps. | ||
Line 35: | Line 63: | ||
Optionally move the pacman mirror list into place: | Optionally move the pacman mirror list into place: | ||
− | |||
mv /opt/arch32/mirrorlist /opt/arch32/etc/pacman.d | mv /opt/arch32/mirrorlist /opt/arch32/etc/pacman.d | ||
Line 56: | Line 83: | ||
Be sure to include the "." character! | Be sure to include the "." character! | ||
+ | |||
+ | Remember to define the correct the number of MAKEFLAGS and other vars in {{ic|/opt/arch32/etc/makepkg.conf}} before attempting to build. | ||
== Create an Arch32 Daemon Script and Systemd Service == | == Create an Arch32 Daemon Script and Systemd Service == | ||
Line 75: | Line 104: | ||
#!/bin/bash | #!/bin/bash | ||
− | # | + | MOUNTPOINT=/opt/arch32 |
− | + | PIDFILE=/run/arch32 | |
+ | |||
+ | # Leave this blank if not using distccd from within the chroot. | ||
+ | USEDISTCC= | ||
+ | DISTCC_SUBNET='192.168.0.0/24' | ||
+ | |||
+ | start_distccd() { | ||
+ | [[ ! -L $MOUNTPOINT/usr/bin/distccd-chroot ]] && ln -s /usr/bin/distccd $MOUNTPOINT/usr/bin/distccd-chroot | ||
+ | DISTCC_ARGS="--user nobody --allow $DISTCC_SUBNET --port 3692 --log-level warning --log-file /tmp/distccd-i686.log" | ||
+ | |||
+ | if [[ -z "$(pgrep distccd-chroot)" ]]; then | ||
+ | linux32 chroot $MOUNTPOINT /bin/bash -c "/usr/bin/distccd-chroot --daemon ${DISTCC_ARGS}" | ||
+ | else | ||
+ | echo "/usr/bin/distccd-chroot seems to be running so doing nothing!" | ||
+ | fi | ||
+ | } | ||
+ | |||
+ | stop_distccd() { | ||
+ | if [[ -n "$(pgrep distccd-chroot)" ]]; then | ||
+ | linux32 chroot $MOUNTPOINT /bin/bash -c "pkill -SIGTERM distccd-chroot" | ||
+ | else | ||
+ | echo "/usr/bin/distccd-chroot does NOT seems to be running so doing nothing!" | ||
+ | fi | ||
+ | } | ||
case $1 in | case $1 in | ||
− | + | start) | |
− | + | # Only relevant for users with an arch32 chroot on a separate partition. | |
− | + | # Edit to fit your system and take note of the corresponding unmount option in the stop function! | |
− | + | # mountpoint -q $MOUNTPOINT || mount LABEL="arch32" $MOUNTPOINT | |
− | + | ||
− | + | dirs=(/tmp /dev /dev/pts /home) | |
− | + | for d in "${dirs[@]}"; do | |
− | + | mount -o bind $d $MOUNTPOINT$d | |
− | + | done | |
− | + | ||
− | + | mount -t proc none $MOUNTPOINT/proc | |
− | + | mount -t sysfs none $MOUNTPOINT/sys | |
− | + | touch $PIDFILE | |
− | + | [[ -n "$USEDISTCC" ]] && start_distccd | |
− | esac</nowiki>}} | + | ;; |
+ | stop) | ||
+ | dirs=(/home /dev/pts /dev /tmp) | ||
+ | [[ -n "$USEDISTCC" ]] && stop_distccd | ||
+ | umount $MOUNTPOINT/{sys,proc} | ||
+ | for d in "${dirs[@]}"; do | ||
+ | umount -l "$MOUNTPOINT$d" | ||
+ | done | ||
+ | # Only relevant for users with an arch32 chroot on a separate partition. | ||
+ | # umount -l $MOUNTPOINT | ||
+ | rm -f $PIDFILE | ||
+ | ;; | ||
+ | *) | ||
+ | echo "usage: $0 (start|stop)" | ||
+ | exit 1 | ||
+ | esac | ||
+ | |||
+ | # vim:set ts=2 sw=2 et: | ||
+ | </nowiki>}} | ||
Be sure to make the init script executable: | Be sure to make the init script executable: | ||
Line 103: | Line 173: | ||
=== Configure the chroot === | === Configure the chroot === | ||
Chroot into the new system: | Chroot into the new system: | ||
− | / | + | /usr/local/bin/arch32 start |
xhost +SI:localuser:usernametogiveaccesstogoeshere | xhost +SI:localuser:usernametogiveaccesstogoeshere | ||
chroot /opt/arch32 | chroot /opt/arch32 | ||
Line 109: | Line 179: | ||
It is recommended to use a custom bash prompt inside the 32-bit chroot installation in order to differentiate from the regular system. You can, for example, add a ''ARCH32'' string to the ''PS1'' variable defined in {{ic|~/.bashrc}}. In fact, the default Debian .bashrc prompt string contains appropriate logic to report whether the working directory is within a chroot. | It is recommended to use a custom bash prompt inside the 32-bit chroot installation in order to differentiate from the regular system. You can, for example, add a ''ARCH32'' string to the ''PS1'' variable defined in {{ic|~/.bashrc}}. In fact, the default Debian .bashrc prompt string contains appropriate logic to report whether the working directory is within a chroot. | ||
+ | === First-time Setup === | ||
Fix possible locale issues: | Fix possible locale issues: | ||
/usr/sbin/locale-gen | /usr/sbin/locale-gen | ||
+ | Initialize pacman: | ||
+ | sed -i 's/CheckSpace/#CheckSpace/' /etc/pacman.conf | ||
+ | pacman-key --init | ||
+ | pacman-key --populate archlinux | ||
+ | |||
+ | === Install Needed Packages === | ||
Install the needed packages including apps, fonts, etc. for example: | Install the needed packages including apps, fonts, etc. for example: | ||
− | |||
pacman -S firefox | pacman -S firefox | ||
pacman -S flashplugin | pacman -S flashplugin | ||
− | |||
− | |||
− | |||
+ | === Regain Space (Optional) === | ||
{{Warning| This cleanup is for the '''32-bit''' root environment and must then be done inside it NOT the native 64-bit environment!}} | {{Warning| This cleanup is for the '''32-bit''' root environment and must then be done inside it NOT the native 64-bit environment!}} | ||
The following shows recommended packages for removal: | The following shows recommended packages for removal: | ||
− | pacman -Rd linux mkinitcpio | + | pacman -Rd linux mkinitcpio dhcpcd ppp xfsprogs reiserfsprogs jfsutils logrotate lvm2 pcmciautils netcfg heirloom-mailx iputils iproute2 man-pages mdadm inetutils man-db cronie vi |
− | |||
Also consider regularly clearing out pacman's cache: | Also consider regularly clearing out pacman's cache: | ||
Line 149: | Line 222: | ||
aliases=32,default | aliases=32,default | ||
− | Optionally edit {{ic|/etc/schroot/arch32/mount}} to match the mounts created within {{ic|/ | + | Optionally edit {{ic|/etc/schroot/arch32/mount}} to match the mounts created within {{ic|/usr/local/bin/arch32}}. |
== Using Schroot to run a 32-bit application == | == Using Schroot to run a 32-bit application == | ||
Line 205: | Line 278: | ||
===Allowing 32-bit applications access to 64-bit Pulseaudio=== | ===Allowing 32-bit applications access to 64-bit Pulseaudio=== | ||
− | Add these lines in {{ic|/ | + | Add these lines in {{ic|/usr/local/bin/arch32}}, before the daemon is started: |
mount --bind /var/run /opt/arch32/var/run | mount --bind /var/run /opt/arch32/var/run | ||
mount --bind /var/lib/dbus /opt/arch32/var/lib/dbus | mount --bind /var/lib/dbus /opt/arch32/var/lib/dbus | ||
− | And | + | And before the daemon is stopped: |
umount /opt/arch32/var/run | umount /opt/arch32/var/run | ||
umount /opt/arch32/var/lib/dbus | umount /opt/arch32/var/lib/dbus | ||
Line 245: | Line 318: | ||
glxinfo | grep renderer | glxinfo | grep renderer | ||
− | If you have no 3D acceleration you | + | If you have no 3D acceleration you will get some output like this: |
[joe@arch64]$ OpenGL renderer string: Software Rasterizer | [joe@arch64]$ OpenGL renderer string: Software Rasterizer | ||
− | If 3D acceleration is enabled you | + | If 3D acceleration is enabled you will get a message like this: |
[joe@arch64]$ OpenGL renderer string: Mesa DRI R600 (RV730 9490) 20090101 x86/MMX+/3DNow!+/SSE2 TCL DRI2 | [joe@arch64]$ OpenGL renderer string: Mesa DRI R600 (RV730 9490) 20090101 x86/MMX+/3DNow!+/SSE2 TCL DRI2 | ||
Revision as of 14:08, 1 April 2013
zh-CN:Install bundled 32-bit system in Arch64 Template:Article summary start Template:Article summary text Template:Article summary end
Contents
Make the i686 Chroot
tl;dr version
Setup
For those wanting a single copy/paste:
export LOCATION=/opt/arch32 # more flexibility here if users wish an alternative location for the chroot mkdir $LOCATION sed -e 's/\$arch/i686/g' /etc/pacman.d/mirrorlist > $LOCATION/mirrorlist sed -e "s@/etc/pacman.d/mirrorlist@$LOCATION/mirrorlist@g" -e '/Architecture/ s,auto,i686,' /etc/pacman.conf > $LOCATION/pacman.conf mkdir -p $LOCATION/var/{cache/pacman/pkg,lib/pacman} pacman --root $LOCATION --cachedir $LOCATION/var/cache/pacman/pkg --config $LOCATION/pacman.conf -Sy pacman --root $LOCATION --cachedir $LOCATION/var/cache/pacman/pkg --config $LOCATION/pacman.conf -S base base-devel sudo mv -f $LOCATION/mirrorlist $LOCATION/etc/pacman.d rm -f $LOCATION/pacman.conf sed -i 's/CheckSpace/#CheckSpace/' $LOCATION/etc/pacman.conf cd $LOCATION/etc cp /etc/passwd* . cp /etc/shadow* . cp /etc/group* . cp /etc/sudoers . cp /etc/resolv.conf . cp /etc/localtime . cp /etc/locale.gen . cp /etc/profile.d/locale.sh profile.d cp /etc/vimrc . cp /etc/mtab . cp /etc/inputrc .
Now skip to the daemon section.
Install the Base 32-bit System
1. Create the directory:
mkdir /opt/arch32
2. Generate temporary pacman configuration files for chroot:
sed -e 's/\$arch/i686/g' /etc/pacman.d/mirrorlist > /opt/arch32/mirrorlist sed -e 's@/etc/pacman.d/mirrorlist@/opt/arch32/mirrorlist@g' -e '/Architecture/ s,auto,i686,' /etc/pacman.conf > /opt/arch32/pacman.conf
- These files would conflict with the normal pacman files, which will be installed in the later steps.
- For this reason they must be put into a temporary location (
/opt/arch32
is used here). - Remember to delete/comment the multilib repo, if you have enable it, in the
/opt/arch32/pacman.conf
file
3. Create the directory:
mkdir -p /opt/arch32/var/{cache/pacman/pkg,lib/pacman}
4. Sync pacman:
pacman --root /opt/arch32 --cachedir /opt/arch32/var/cache/pacman/pkg --config /opt/arch32/pacman.conf -Sy
5. Install the base and optionally base-devel groups:
pacman --root /opt/arch32 --cachedir /opt/arch32/var/cache/pacman/pkg --config /opt/arch32/pacman.conf -S base base-devel
Optionally add your favorite text editor and distcc if you plan to compile within the chroot with other machines:
pacman --root /opt/arch32 --cachedir /opt/arch32/var/cache/pacman/pkg --config /opt/arch32/pacman.conf -S base base-devel sudo vim distcc
Optionally move the pacman mirror list into place:
mv /opt/arch32/mirrorlist /opt/arch32/etc/pacman.d
Configuration files
Key configuration files should be copied over:
cd /opt/arch32/etc cp /etc/passwd* . cp /etc/shadow* . cp /etc/group* . cp /etc/sudoers . cp /etc/resolv.conf . cp /etc/localtime . cp /etc/locale.gen . cp /etc/profile.d/locale.sh profile.d cp /etc/vimrc . cp /etc/mtab . cp /etc/inputrc .
Be sure to include the "." character!
Remember to define the correct the number of MAKEFLAGS and other vars in /opt/arch32/etc/makepkg.conf
before attempting to build.
Create an Arch32 Daemon Script and Systemd Service
/etc/systemd/system/arch32.service
[Unit] Description=32-bit chroot [Service] Type=oneshot RemainAfterExit=yes ExecStart=/usr/local/bin/arch32 start ExecStop=/usr/local/bin/arch32 stop [Install] WantedBy=multi-user.target
/usr/local/bin/arch32
#!/bin/bash MOUNTPOINT=/opt/arch32 PIDFILE=/run/arch32 # Leave this blank if not using distccd from within the chroot. USEDISTCC= DISTCC_SUBNET='192.168.0.0/24' start_distccd() { [[ ! -L $MOUNTPOINT/usr/bin/distccd-chroot ]] && ln -s /usr/bin/distccd $MOUNTPOINT/usr/bin/distccd-chroot DISTCC_ARGS="--user nobody --allow $DISTCC_SUBNET --port 3692 --log-level warning --log-file /tmp/distccd-i686.log" if [[ -z "$(pgrep distccd-chroot)" ]]; then linux32 chroot $MOUNTPOINT /bin/bash -c "/usr/bin/distccd-chroot --daemon ${DISTCC_ARGS}" else echo "/usr/bin/distccd-chroot seems to be running so doing nothing!" fi } stop_distccd() { if [[ -n "$(pgrep distccd-chroot)" ]]; then linux32 chroot $MOUNTPOINT /bin/bash -c "pkill -SIGTERM distccd-chroot" else echo "/usr/bin/distccd-chroot does NOT seems to be running so doing nothing!" fi } case $1 in start) # Only relevant for users with an arch32 chroot on a separate partition. # Edit to fit your system and take note of the corresponding unmount option in the stop function! # mountpoint -q $MOUNTPOINT || mount LABEL="arch32" $MOUNTPOINT dirs=(/tmp /dev /dev/pts /home) for d in "${dirs[@]}"; do mount -o bind $d $MOUNTPOINT$d done mount -t proc none $MOUNTPOINT/proc mount -t sysfs none $MOUNTPOINT/sys touch $PIDFILE [[ -n "$USEDISTCC" ]] && start_distccd ;; stop) dirs=(/home /dev/pts /dev /tmp) [[ -n "$USEDISTCC" ]] && stop_distccd umount $MOUNTPOINT/{sys,proc} for d in "${dirs[@]}"; do umount -l "$MOUNTPOINT$d" done # Only relevant for users with an arch32 chroot on a separate partition. # umount -l $MOUNTPOINT rm -f $PIDFILE ;; *) echo "usage: $0 (start|stop)" exit 1 esac # vim:set ts=2 sw=2 et:
Be sure to make the init script executable:
# chmod +x /usr/local/bin/arch32
Enable the service as any other systemd service.
Configure the new system
Configure the chroot
Chroot into the new system:
/usr/local/bin/arch32 start xhost +SI:localuser:usernametogiveaccesstogoeshere chroot /opt/arch32
It is recommended to use a custom bash prompt inside the 32-bit chroot installation in order to differentiate from the regular system. You can, for example, add a ARCH32 string to the PS1 variable defined in ~/.bashrc
. In fact, the default Debian .bashrc prompt string contains appropriate logic to report whether the working directory is within a chroot.
First-time Setup
Fix possible locale issues:
/usr/sbin/locale-gen
Initialize pacman:
sed -i 's/CheckSpace/#CheckSpace/' /etc/pacman.conf pacman-key --init pacman-key --populate archlinux
Install Needed Packages
Install the needed packages including apps, fonts, etc. for example:
pacman -S firefox pacman -S flashplugin
Regain Space (Optional)
The following shows recommended packages for removal:
pacman -Rd linux mkinitcpio dhcpcd ppp xfsprogs reiserfsprogs jfsutils logrotate lvm2 pcmciautils netcfg heirloom-mailx iputils iproute2 man-pages mdadm inetutils man-db cronie vi
Also consider regularly clearing out pacman's cache:
pacman -Scc
Install and Configure Schroot
Install "schroot" to the native 64-bit installation:
pacman -S schroot
Edit /etc/schroot/schroot.conf
, and create an [Arch32] section.
[Arch32] type=directory profile=arch32 description=Arch32 directory=/opt/arch32 users=user1,user2,user3 groups=users root-groups=root personality=linux32 aliases=32,default
Optionally edit /etc/schroot/arch32/mount
to match the mounts created within /usr/local/bin/arch32
.
Using Schroot to run a 32-bit application
The general syntax for calling an application inside the chroot is:
schroot -p -- htop
In this example, htop is called from within the 32-bit environment.
Troubleshooting
Compilation and installing
Ensure the desired options are set in the local /etc/makepkg.conf
.
Some packages may require a --host
flag be added to the ./configure script in the PKBUILD:
./configure --host="i686-pc-linux" ...
This is the case when the build makes use of values (for example, the output of the uname
command) inherited from your base system.
You may need to give users write access to your chroot's /dev/null to stop some scripts from failing:
chmod 666 /dev/null
Video issues
If you get:
X Error of failed request: BadLength (poly request too large or internal Xlib length error)
while trying to run an application that requires video acceleration, make sure you have installed appropriate video drivers in your chroot. For example,
pacman -S nvidia
Sound in flash (youtube, etc.)
To get sound from the flash player in Firefox, open a terminal and chroot inside the 32-bit system:
chroot /opt/arch32
From there, install alsa-oss:
pacman -S alsa-oss
Then type:
export FIREFOX_DSP="aoss"
Every chroot into the 32-bit system will require this export command to be entered so it may be best to incorporate it into a script.
Finally, launch Firefox.
For Wine this works the same way. The package alsa-oss will also install the alsa libs required by Wine to output sound.
Tips and tricks
Java in a chroot
See Java for installation instructions.
After installing, adjust the path to get Java working:
export PATH="/opt/java/bin/:$PATH"
arch32-light
Xyne has created a package that installs a minimalist 32-bit chroot as described above. More information can be found on the forum and on the project page.
Allowing 32-bit applications access to 64-bit Pulseaudio
Add these lines in /usr/local/bin/arch32
, before the daemon is started:
mount --bind /var/run /opt/arch32/var/run mount --bind /var/lib/dbus /opt/arch32/var/lib/dbus
And before the daemon is stopped:
umount /opt/arch32/var/run umount /opt/arch32/var/lib/dbus
More information is available at the Pulseaudio article, especially the section on Pulseaudio from within a chroot.
Enabling sound in Firefox
Open a text editor and save the following in /usr/bin/firefox32
as root:
#!/bin/sh schroot -p firefox $1;export FIREFOX_DSP="aoss"
Make it executable:
sudo chmod +x /usr/bin/firefox32
Now you can make an alias for Firefox, if desired:
alias firefox="firefox32"
Add this to the end of file ~/.bashrc
and source it to enable its usage. Or you can just change all your desktop environment's launchers to firefox32 if you still want 64-bit Firefox to be available.
Enabling 3D acceleration
In case you want to run any 32 bit application under your chroot with 3D acceleration (e.g. WINE, native 32 bit games) you simply need to install the corresponding libs as under your "native" arch.
For an ATI card using the radeon driver this could be:
pacman -S xf86-video-ati libgl ati-dri
For more informations on how to set up your graphic adapter refer to:
Your can easily check if you have 3D rendering within the 32 bit chroot by installing mesa-demos and running the following command:
glxinfo | grep renderer
If you have no 3D acceleration you will get some output like this:
[joe@arch64]$ OpenGL renderer string: Software Rasterizer
If 3D acceleration is enabled you will get a message like this:
[joe@arch64]$ OpenGL renderer string: Mesa DRI R600 (RV730 9490) 20090101 x86/MMX+/3DNow!+/SSE2 TCL DRI2
Script for wine
In order to compile wine, you need a 32-bit system installed. Compiling wine is needed for applying patches in order to get PulseAudio working. See also wine-hacks from AUR.
Add the following alias to ~/.bashrc
:
alias wine='schroot -pqd "$(pwd)" -- wine'
The -q
switch makes schroot operate in quiet mode, so it works like "regular" wine does. Also note that If you still use dchroot instead of schroot, you should use switch -d
instead of -s
.