Alpine Linux - User contributions [en]

Flatpak

2023-08-11T09:38:30Z

LAC-Tech: /* Runtime dependencies */

{{Draft|More documentation and testing is needed, but everything currently here should be safe to follow.}}

Flatpak is a technology for building and distributing applications with the goal of having a universal package format for all Linux distributons, it is similar to [https://en.wikipedia.org/wiki/Snap_(software) Snap],

== Setup / Installation ==

=== Runtime dependencies ===

- dbus

- xdg-desktop-portal

- an implementation of xdg-desktop-portal, eg xdg-desktop-portal-gtk

Note if you are running a window manager from .xinitrc, make sure you are running a dbus session explicitly, ie:

<code>
exec dbus-launch --exit-with-session your_favourite_wm
</code>

=== Installing Flatpak Itself ===

''From: https://flatpak.org/setup/Alpine/''

{{Note|To install Flatpak you will need to enable the Community repository, See: [[Repositories#Managing_repositories|Repositories - Managing repositories]]}}

To install Flatpak run:

{{cmd|# apk add {{Pkg|flatpak}}}}

Next you need to add a repository, for this guide we will use the recommended repository, [https://flathub.org Flathub].

{{cmd|$ flatpak remote-add --user --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo}}

Now reboot to complete setup

{{Note|graphical installation of Flatpak apps may not be possible with Alpine.}}

== Usage ==

To get all of the available options to use with the '''flatpak''' command run: '''flatpak --help''' or '''flatpak -h''',

=== Search ===

To search for applications run '''flatpak search <appplicationname>'''

Example:

~'''$''' flatpak search chromium

Name Description Application ID Version Branch Remotes
Chromium Web Browser The web browser from Chromium project org.chromium.Chromium 96.0.4664.93 stable flathub
Chromium B.S.U. Fast paced, arcade-style, top-scrolling space shooter net.sourceforge.chromium-bsu 0.9.16.1 stable flathub
ungoogled-chromium A lightweight approach to removing Google web service dependency com.github.Eloston.UngoogledChromium 96.0.4664.45 stable flathub


 

=== Install ===

To install a package run '''flatpak install <applicationname>'''

~'''$''' flatpak install com.github.Eloston.UngoogledChromium

Looking for matches…

com.github.Eloston.UngoogledChromium permissions:
ipc network cups pulseaudio wayland x11
devices file access [1] dbus access [2] bus ownership [3] system dbus access [4]

[1] /run/.heim_org.h5l.kcm-socket, home, xdg-run/pipewire-0
[2] org.freedesktop.FileManager1, org.freedesktop.Notifications, org.freedesktop.secrets, org.gnome.SessionManager
[3] org.mpris.MediaPlayer2.chromium.*
[4] org.freedesktop.Avahi, org.freedesktop.UPower

ID Branch Op Remote Download
1. com.github.Eloston.UngoogledChromium.Codecs stable i flathub < 1.1 MB
2. com.github.Eloston.UngoogledChromium.Locale stable i flathub < 112.8 kB
3. com.github.Eloston.UngoogledChromium stable i flathub < 119.0 MB

Proceed with these changes to the system installation? [Y/n]:


or if you dont know or dont want to type the exact package name:

~'''$''' flatpak install chromium

Looking for matches…
Similar refs found for ‘chromium’ in remote ‘flathub’ (system):

1) app/net.sourceforge.chromium-bsu/x86_64/stable
2) runtime/com.github.Eloston.UngoogledChromium.Codecs/x86_64/stable
3) runtime/org.chromium.Chromium.Codecs/x86_64/stable
4) app/org.chromium.Chromium/x86_64/stable
5) app/com.github.Eloston.UngoogledChromium/x86_64/stable

Which do you want to use (0 to abort)? [0-5]:


=== Remove ===

To remove a package run: '''flatpak remove <applicationname>'''

~'''$''' flatpak remove com.github.Eloston.UngoogledChromium

ID Branch Op
1. com.github.Eloston.UngoogledChromium stable r
2. com.github.Eloston.UngoogledChromium.Codecs stable r
3. com.github.Eloston.UngoogledChromium.Locale stable r

Proceed with these changes to the system installation? [Y/n]:


or if you dont know or dont want to type the exact package name:

~'''$''' flatpak remove chromium

Similar installed refs found for ‘chromium’:

1) app/com.github.Eloston.UngoogledChromium/x86_64/stable (system)
2) runtime/com.github.Eloston.UngoogledChromium.Codecs/x86_64/stable (system)
3) All of the above

Which do you want to use (0 to abort)? [0-3]:


== Developers ==

* [https://docs.flatpak.org/en/latest/available-runtimes.html Flatpak - available runtimes]

These are all hosted on [https://flathub.org/ Flathub.org].

== Troubleshooting ==

=== Permission errors ===

If you receive errors about permissions then you may need to add your user to the '''flatpak''' group.

{{Note|You need to log out and log back in or reboot for the group change(s) to take effect}}

=== Fixing audio issues ===

If you have a minimal setup and don't have access to audio devices you will need to set the XDG_RUNTIME_DIR variable. Save the following script in {{Path|/etc/profile.d/xdg_runtime_dir.sh}} and re-login to have it set up properly.

if test -z "${XDG_RUNTIME_DIR}"; then
export XDG_RUNTIME_DIR=/tmp/$(id -u)
fi

When you launch a Flatpak you will need to start pulseaudio as well:

{{Cmd|$ pulseaudio --start && flatpak run com.example.Example}}

== Links ==
* [https://flatpak.org/ Flatpak]
* [https://flathub.org/ Flathub]
* [https://winepak.github.io/ Winepak]

[[Category:Package Manager]]
[[Category: Desktop]]

Flatpak

2023-08-02T23:15:51Z

LAC-Tech: /* Setup / Installation */

{{Draft|More documentation and testing is needed, but everything currently here should be safe to follow.}}

Flatpak is a technology for building and distributing applications with the goal of having a universal package format for all Linux distributons, it is similar to [https://en.wikipedia.org/wiki/Snap_(software) Snap],

== Setup / Installation ==

=== Runtime dependencies ===

- dbus

- xdg-desktop-portal

- an implementation of xdg-desktop-portal, ie xdg-desktop-portal-gtk

=== Installing Flatpak Itself ===

''From: https://flatpak.org/setup/Alpine/''

{{Note|To install Flatpak you will need to enable the Community repository, See: [[Repositories#Managing_repositories|Repositories - Managing repositories]]}}

To install Flatpak run:

{{cmd|# apk add {{Pkg|flatpak}}}}

Next you need to add a repository, for this guide we will use the recommended repository, [https://flathub.org Flathub].

{{cmd|$ flatpak remote-add --user --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo}}

Now reboot to complete setup

{{Note|graphical installation of Flatpak apps may not be possible with Alpine.}}

== Usage ==

To get all of the available options to use with the '''flatpak''' command run: '''flatpak --help''' or '''flatpak -h''',

=== Search ===

To search for applications run '''flatpak search <appplicationname>'''

Example:

~'''$''' flatpak search chromium

Name Description Application ID Version Branch Remotes
Chromium Web Browser The web browser from Chromium project org.chromium.Chromium 96.0.4664.93 stable flathub
Chromium B.S.U. Fast paced, arcade-style, top-scrolling space shooter net.sourceforge.chromium-bsu 0.9.16.1 stable flathub
ungoogled-chromium A lightweight approach to removing Google web service dependency com.github.Eloston.UngoogledChromium 96.0.4664.45 stable flathub


 

=== Install ===

To install a package run '''flatpak install <applicationname>'''

~'''$''' flatpak install com.github.Eloston.UngoogledChromium

Looking for matches…

com.github.Eloston.UngoogledChromium permissions:
ipc network cups pulseaudio wayland x11
devices file access [1] dbus access [2] bus ownership [3] system dbus access [4]

[1] /run/.heim_org.h5l.kcm-socket, home, xdg-run/pipewire-0
[2] org.freedesktop.FileManager1, org.freedesktop.Notifications, org.freedesktop.secrets, org.gnome.SessionManager
[3] org.mpris.MediaPlayer2.chromium.*
[4] org.freedesktop.Avahi, org.freedesktop.UPower

ID Branch Op Remote Download
1. com.github.Eloston.UngoogledChromium.Codecs stable i flathub < 1.1 MB
2. com.github.Eloston.UngoogledChromium.Locale stable i flathub < 112.8 kB
3. com.github.Eloston.UngoogledChromium stable i flathub < 119.0 MB

Proceed with these changes to the system installation? [Y/n]:


or if you dont know or dont want to type the exact package name:

~'''$''' flatpak install chromium

Looking for matches…
Similar refs found for ‘chromium’ in remote ‘flathub’ (system):

1) app/net.sourceforge.chromium-bsu/x86_64/stable
2) runtime/com.github.Eloston.UngoogledChromium.Codecs/x86_64/stable
3) runtime/org.chromium.Chromium.Codecs/x86_64/stable
4) app/org.chromium.Chromium/x86_64/stable
5) app/com.github.Eloston.UngoogledChromium/x86_64/stable

Which do you want to use (0 to abort)? [0-5]:


=== Remove ===

To remove a package run: '''flatpak remove <applicationname>'''

~'''$''' flatpak remove com.github.Eloston.UngoogledChromium

ID Branch Op
1. com.github.Eloston.UngoogledChromium stable r
2. com.github.Eloston.UngoogledChromium.Codecs stable r
3. com.github.Eloston.UngoogledChromium.Locale stable r

Proceed with these changes to the system installation? [Y/n]:


or if you dont know or dont want to type the exact package name:

~'''$''' flatpak remove chromium

Similar installed refs found for ‘chromium’:

1) app/com.github.Eloston.UngoogledChromium/x86_64/stable (system)
2) runtime/com.github.Eloston.UngoogledChromium.Codecs/x86_64/stable (system)
3) All of the above

Which do you want to use (0 to abort)? [0-3]:


== Developers ==

* [https://docs.flatpak.org/en/latest/available-runtimes.html Flatpak - available runtimes]

These are all hosted on [https://flathub.org/ Flathub.org].

== Troubleshooting ==

=== Permission errors ===

If you receive errors about permissions then you may need to add your user to the '''flatpak''' group.

{{Note|You need to log out and log back in or reboot for the group change(s) to take effect}}

=== Fixing audio issues ===

If you have a minimal setup and don't have access to audio devices you will need to set the XDG_RUNTIME_DIR variable. Save the following script in {{Path|/etc/profile.d/xdg_runtime_dir.sh}} and re-login to have it set up properly.

if test -z "${XDG_RUNTIME_DIR}"; then
export XDG_RUNTIME_DIR=/tmp/$(id -u)
fi

When you launch a Flatpak you will need to start pulseaudio as well:

{{Cmd|$ pulseaudio --start && flatpak run com.example.Example}}

== Links ==
* [https://flatpak.org/ Flatpak]
* [https://flathub.org/ Flathub]
* [https://winepak.github.io/ Winepak]

[[Category:Package Manager]]
[[Category: Desktop]]

Elogind

2023-06-29T03:24:46Z

LAC-Tech: I've had this issue in at least 3 different installs - this is how you get hibernate to work

[https://github.com/elogind/elogind '''elogind'''] is a login manager and provides support for

* setting up necessary permissions for the desktop environment or window manager
* handling poweroff, reboot, suspend and hibernate via '''loginctl''' command

== Installation ==

{{Cmd|# apk add {{Pkg|elogind}} {{Pkg|polkit-elogind}}
# rc-update add elogind
# rc-service elogind start }}

Set up a [[PAM]] login.

== Hibernating ==

For {{Cmd|# loginctl hibernate}} to work, you must have a swap partition. Check {{Cmd|# lsblk}} for a partition with the mountpoint [SWAP].

<pre>
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
nvme0n1 259:0 0 953.9G 0 disk
├─nvme0n1p1 259:1 0 200M 0 part /boot
├─nvme0n1p2 259:2 0 100G 0 part /
├─nvme0n1p3 259:3 0 805G 0 part /home
└─nvme0n1p4 259:4 0 48.7G 0 part [SWAP]
</pre>

Remember also to add a kernel parameter to resume, ie in {{Path|/etc/default/grub}} :

<pre>
GRUB_TIMEOUT=2
GRUB_DISABLE_SUBMENU=y
GRUB_DISABLE_RECOVERY=true
GRUB_CMDLINE_LINUX_DEFAULT="modules=sd-mod,usb-storage,ext4,nvme quiet rootfstype=ext4 resume=/dev/nvme0n1p4"
</pre>

Note the "resume=" flag with the same partition that was marked as [SWAP].

== Configuration ==

=== logind.conf ===

Edit {{Path|/etc/elogind/logind.conf}} to configure handling of power events, such as suspending the computer when power button is pressed:

{{Cmd|<nowiki># sed -i 's|#HandlePowerKey=poweroff|HandlePowerKey=suspend|' /etc/elogind/logind.conf</nowiki>}}

=== Working with Desktop Environments ===

If using a Window Manager or Desktop Environment, such as [[Sway]], the user must ensure that login session is correctly configured. When correctly configured, the <code>loginctl</code> command should output the following:

'''Using [[Sway]] and [[SDDM]]'''

~'''$''' loginctl

SESSION UID USER SEAT TTY
c1 105 sddm seat0
c2 1000 User seat0 tty8

2 sessions listed.


If the output is <code>No session available.</code>, such as in the case of launching Sway from tty, suspend and many other functionality will not work. The user then must configure a display manager such as {{Pkg|greetd}}, [[SDDM]] or {{Pkg|lightdm|LightDM}}.

== See also ==

* [https://wiki.gentoo.org/wiki/Elogind elogind - Gentoo Wiki]

[[Category:Desktop]]

Software management

2021-06-01T02:47:00Z

LAC-Tech: /* Your options */

If you want to run [https://www.gnu.org/software/libc/ glibc] programs in Alpine Linux, there are a few ways of doing so. You could install glibc as additional to [https://musl.libc.org/ musl] (you would have to do this manually), or you could do it the easy way and use either Flatpak (the easiest) or a chroot. 

Because there are different use cases, this is just a slight overview about what's possible and what's intelligent. 

= Your options =

== gcompat ==

[https://git.adelielinux.org/adelie/gcompat gcompat] is the go-to compatibility layer for Alpine users.

apk add gcompat

After that you run your binaries as normal.

== Flatpak ==

Flatpak is by far the easiest method of running any graphical glibc program on Alpine.
Firstly install it.

sudo apk add flatpak

Then you can run any Flatpak application:

flatpak run <flatpak name>

It is recommended to enable [https://flathub.org Flathub] using it's instructions [https://flatpak.org/setup/Alpine/ here], as most glibc programs you might need will be packaged there.

You can then install applications from it, for example:

flatpak install com.valvesoftware.Steam

== Chroot ==

=== Gentoo Linux ===

Select a stage3 from [https://www.gentoo.org/downloads/ here] and portage latest from [https://www.gentoo.org/downloads/mirrors/ here] at gentoo/snapshots/portage-latest.tar.xz.

First,

sudo apk add xz

Enter the chroot:
mkdir ~/chroot
cd ~/chroot
tar -xvf stage3-*.tar.xz
tar -xvf portage-latest.tar.xz
mv portage usr
sudo mount --bind /dev dev
sudo mount --bind /sys sys
sudo mount -t proc proc proc
cp /etc/resolv.conf etc
sudo chroot . /bin/bash

And voilà, you have your working Gentoo chroot! 

You can now take a look at [https://wiki.gentoo.org/wiki/Handbook:Main_Page Gentoo's Handbook] to find out how you can configure and install your system, or simply extract/copy the program you need to run in your chroot enviroment and execute it.

Here is a wrapper script that is similar to <code>arch-chroot</code> when you frequently reuse this chroot:

Also, create an account with the same user name as host current user to the chroot or make changes to the userspec option to chroot line.

{{Cat|gentoo-chroot.sh|<nowiki>!/bin/bash
CHROOT_PATH="/home/$USER/chroot"
cd $CHROOT_PATH
mount | grep $CHROOT_PATH/dev || sudo mount --bind /dev dev
mount | grep $CHROOT_PATH/sys || sudo mount --bind /sys sys
mount | grep $CHROOT_PATH/proc || sudo mount -t proc proc proc
cp /etc/resolv.conf etc
sudo chroot --userspec=$USER:users . /bin/bash
echo "You must manually unmount $CHROOT_PATH/dev, $CHROOT_PATH/sys, $CHROOT_PATH/proc."
</nowiki>
}}

Do at <code>chmod +x gentoo-chroot.sh</code> to get it to work.

=== Arch Linux ===

Either use '''pacstrap''' (included with the arch-install-scripts package) or an Arch bootstrap image:

sudo apk add arch-install-scripts
mkdir ~/chroot && cd ~/chroot
curl -O https://mirrors.edge.kernel.org/archlinux/iso/latest/archlinux-bootstrap-2021.04.01-x86_64.tar.gz
sudo tar xzf archlinux-bootstrap-2021.04.01-x86_64.tar.gz && rm archlinux-bootstrap-2021.04.01-x86_64.tar.gz
sudo sed -i '/evowise/s/^#//' root.x86_64/etc/pacman.d/mirrorlist
sudo sed -i '/CheckSpace/s/^/#/' root.x86_64/etc/pacman.conf
sudo arch-chroot root.x86_64
[chroot]# pacman-key --init
[chroot]# pacman-key --populate archlinux

Once that is done, update the system and install the desired package(s) (denoted by ''"foo"'' in this example):

[chroot]# pacman -Syu ''foo''

=== Debian ===

Use the provided debootstrap package to create the Debian chroot. <code>--arch</code> is optional, depending of your needs.

On the '''linux-grsec''' kernel, you will need to relax chroot limitations:

sudo apk add debootstrap
for i in /proc/sys/kernel/grsecurity/chroot_*; do echo 0 | sudo tee $i; done
mkdir ~/chroot
sudo debootstrap --arch=i386 wheezy ~/chroot http://http.debian.net/debian/
for i in /proc/sys/kernel/grsecurity/chroot_*; do echo 1 | sudo tee $i; done
sudo chroot ~/chroot /bin/bash

You can now use <code>apt-get</code> to install needed packages.

[[Category:Development]]
[[Category:Installation]]

Software management

2021-06-01T02:46:39Z

LAC-Tech: /* gcompat */

If you want to run [https://www.gnu.org/software/libc/ glibc] programs in Alpine Linux, there are a few ways of doing so. You could install glibc as additional to [https://musl.libc.org/ musl] (you would have to do this manually), or you could do it the easy way and use either Flatpak (the easiest) or a chroot. 

Because there are different use cases, this is just a slight overview about what's possible and what's intelligent. 

= Your options =

[https://git.adelielinux.org/adelie/gcompat gcompat] is the go-to compatibility layer for Alpine users.

apk add gcompat

After that you run your binaries as normal.

== Flatpak ==

Flatpak is by far the easiest method of running any graphical glibc program on Alpine.
Firstly install it.

sudo apk add flatpak

Then you can run any Flatpak application:

flatpak run <flatpak name>

It is recommended to enable [https://flathub.org Flathub] using it's instructions [https://flatpak.org/setup/Alpine/ here], as most glibc programs you might need will be packaged there.

You can then install applications from it, for example:

flatpak install com.valvesoftware.Steam

== Chroot ==

=== Gentoo Linux ===

Select a stage3 from [https://www.gentoo.org/downloads/ here] and portage latest from [https://www.gentoo.org/downloads/mirrors/ here] at gentoo/snapshots/portage-latest.tar.xz.

First,

sudo apk add xz

Enter the chroot:
mkdir ~/chroot
cd ~/chroot
tar -xvf stage3-*.tar.xz
tar -xvf portage-latest.tar.xz
mv portage usr
sudo mount --bind /dev dev
sudo mount --bind /sys sys
sudo mount -t proc proc proc
cp /etc/resolv.conf etc
sudo chroot . /bin/bash

And voilà, you have your working Gentoo chroot! 

You can now take a look at [https://wiki.gentoo.org/wiki/Handbook:Main_Page Gentoo's Handbook] to find out how you can configure and install your system, or simply extract/copy the program you need to run in your chroot enviroment and execute it.

Here is a wrapper script that is similar to <code>arch-chroot</code> when you frequently reuse this chroot:

Also, create an account with the same user name as host current user to the chroot or make changes to the userspec option to chroot line.

{{Cat|gentoo-chroot.sh|<nowiki>!/bin/bash
CHROOT_PATH="/home/$USER/chroot"
cd $CHROOT_PATH
mount | grep $CHROOT_PATH/dev || sudo mount --bind /dev dev
mount | grep $CHROOT_PATH/sys || sudo mount --bind /sys sys
mount | grep $CHROOT_PATH/proc || sudo mount -t proc proc proc
cp /etc/resolv.conf etc
sudo chroot --userspec=$USER:users . /bin/bash
echo "You must manually unmount $CHROOT_PATH/dev, $CHROOT_PATH/sys, $CHROOT_PATH/proc."
</nowiki>
}}

Do at <code>chmod +x gentoo-chroot.sh</code> to get it to work.

=== Arch Linux ===

Either use '''pacstrap''' (included with the arch-install-scripts package) or an Arch bootstrap image:

sudo apk add arch-install-scripts
mkdir ~/chroot && cd ~/chroot
curl -O https://mirrors.edge.kernel.org/archlinux/iso/latest/archlinux-bootstrap-2021.04.01-x86_64.tar.gz
sudo tar xzf archlinux-bootstrap-2021.04.01-x86_64.tar.gz && rm archlinux-bootstrap-2021.04.01-x86_64.tar.gz
sudo sed -i '/evowise/s/^#//' root.x86_64/etc/pacman.d/mirrorlist
sudo sed -i '/CheckSpace/s/^/#/' root.x86_64/etc/pacman.conf
sudo arch-chroot root.x86_64
[chroot]# pacman-key --init
[chroot]# pacman-key --populate archlinux

Once that is done, update the system and install the desired package(s) (denoted by ''"foo"'' in this example):

[chroot]# pacman -Syu ''foo''

=== Debian ===

Use the provided debootstrap package to create the Debian chroot. <code>--arch</code> is optional, depending of your needs.

On the '''linux-grsec''' kernel, you will need to relax chroot limitations:

sudo apk add debootstrap
for i in /proc/sys/kernel/grsecurity/chroot_*; do echo 0 | sudo tee $i; done
mkdir ~/chroot
sudo debootstrap --arch=i386 wheezy ~/chroot http://http.debian.net/debian/
for i in /proc/sys/kernel/grsecurity/chroot_*; do echo 1 | sudo tee $i; done
sudo chroot ~/chroot /bin/bash

You can now use <code>apt-get</code> to install needed packages.

[[Category:Development]]
[[Category:Installation]]

Software management

2021-06-01T02:44:27Z

LAC-Tech: I keep hearing about gcompat on IRC etc, but everyone just comes to this wiki page and is confused. Added it to the top.

If you want to run [https://www.gnu.org/software/libc/ glibc] programs in Alpine Linux, there are a few ways of doing so. You could install glibc as additional to [https://musl.libc.org/ musl] (you would have to do this manually), or you could do it the easy way and use either Flatpak (the easiest) or a chroot. 

Because there are different use cases, this is just a slight overview about what's possible and what's intelligent. 

= Your options =

== gcompat ==

[Gcompat https://git.adelielinux.org/adelie/gcompat] is widely used by Alpine users.

apk add gcompat

After that you run your binaries as normal.

== Flatpak ==

Flatpak is by far the easiest method of running any graphical glibc program on Alpine.
Firstly install it.

sudo apk add flatpak

Then you can run any Flatpak application:

flatpak run <flatpak name>

It is recommended to enable [https://flathub.org Flathub] using it's instructions [https://flatpak.org/setup/Alpine/ here], as most glibc programs you might need will be packaged there.

You can then install applications from it, for example:

flatpak install com.valvesoftware.Steam

== Chroot ==

=== Gentoo Linux ===

Select a stage3 from [https://www.gentoo.org/downloads/ here] and portage latest from [https://www.gentoo.org/downloads/mirrors/ here] at gentoo/snapshots/portage-latest.tar.xz.

First,

sudo apk add xz

Enter the chroot:
mkdir ~/chroot
cd ~/chroot
tar -xvf stage3-*.tar.xz
tar -xvf portage-latest.tar.xz
mv portage usr
sudo mount --bind /dev dev
sudo mount --bind /sys sys
sudo mount -t proc proc proc
cp /etc/resolv.conf etc
sudo chroot . /bin/bash

And voilà, you have your working Gentoo chroot! 

You can now take a look at [https://wiki.gentoo.org/wiki/Handbook:Main_Page Gentoo's Handbook] to find out how you can configure and install your system, or simply extract/copy the program you need to run in your chroot enviroment and execute it.

Here is a wrapper script that is similar to <code>arch-chroot</code> when you frequently reuse this chroot:

Also, create an account with the same user name as host current user to the chroot or make changes to the userspec option to chroot line.

{{Cat|gentoo-chroot.sh|<nowiki>!/bin/bash
CHROOT_PATH="/home/$USER/chroot"
cd $CHROOT_PATH
mount | grep $CHROOT_PATH/dev || sudo mount --bind /dev dev
mount | grep $CHROOT_PATH/sys || sudo mount --bind /sys sys
mount | grep $CHROOT_PATH/proc || sudo mount -t proc proc proc
cp /etc/resolv.conf etc
sudo chroot --userspec=$USER:users . /bin/bash
echo "You must manually unmount $CHROOT_PATH/dev, $CHROOT_PATH/sys, $CHROOT_PATH/proc."
</nowiki>
}}

Do at <code>chmod +x gentoo-chroot.sh</code> to get it to work.

=== Arch Linux ===

Either use '''pacstrap''' (included with the arch-install-scripts package) or an Arch bootstrap image:

sudo apk add arch-install-scripts
mkdir ~/chroot && cd ~/chroot
curl -O https://mirrors.edge.kernel.org/archlinux/iso/latest/archlinux-bootstrap-2021.04.01-x86_64.tar.gz
sudo tar xzf archlinux-bootstrap-2021.04.01-x86_64.tar.gz && rm archlinux-bootstrap-2021.04.01-x86_64.tar.gz
sudo sed -i '/evowise/s/^#//' root.x86_64/etc/pacman.d/mirrorlist
sudo sed -i '/CheckSpace/s/^/#/' root.x86_64/etc/pacman.conf
sudo arch-chroot root.x86_64
[chroot]# pacman-key --init
[chroot]# pacman-key --populate archlinux

Once that is done, update the system and install the desired package(s) (denoted by ''"foo"'' in this example):

[chroot]# pacman -Syu ''foo''

=== Debian ===

Use the provided debootstrap package to create the Debian chroot. <code>--arch</code> is optional, depending of your needs.

On the '''linux-grsec''' kernel, you will need to relax chroot limitations:

sudo apk add debootstrap
for i in /proc/sys/kernel/grsecurity/chroot_*; do echo 0 | sudo tee $i; done
mkdir ~/chroot
sudo debootstrap --arch=i386 wheezy ~/chroot http://http.debian.net/debian/
for i in /proc/sys/kernel/grsecurity/chroot_*; do echo 1 | sudo tee $i; done
sudo chroot ~/chroot /bin/bash

You can now use <code>apt-get</code> to install needed packages.

[[Category:Development]]
[[Category:Installation]]