How to run a linuxator gui application

Alain De Vos

Alain De Vos

I installed ubuntu linuxator.
I'm asking how i can run a gui application , eg geany on linux.
Maybe i must mount something like /tmp/.X0-unix.
Which line do i put in fstab. nullfs ?
Same question for a gui application in a jail.
 
you would mount the /tmp directory from the host
to the jail or linuxulator

so it has access to the x11 socket

if you are using x11 you can use Xephyr to create a new display

Install Xephyr if you are running X11 on Freebsd

Code: 
sudo pkg install Xephyr

Create a 1920x1080 fullscreen window

Code: 
Xephyr -br -ac -noreset -screen 1920x1080 :1

Press ctrl + shift to release the mouse

then in the jail or the linuxulator install you export the DISPLAY and set to :1
in the shell config of the jail or linuxulator

Code: 
  export DISPLAY=:1
  export QT_QPA_PLATFORM=xcb
  export GDK_BACKEND=x11

so when you when you run an application it will use DISPLAY :1
which is the Xephyr window

scripts to launch jailed gui applications using desktop entries on freebsd

NapoleonWils0n

Solved Post in thread 'Ubuntu 24.10 Oracular Oriole empty bin directory in jail'

i have created 2 scripts called wrapper-freebsd and wrapper-jail

which are used with desktop entries on freebsd
to launch gui applications in a linux or freebsd jail from your application launcher

wrapper-freebsd
is installed on freebsd

wrapper-jail
is installed in the jail

then you create desktop entries that call the wrapper-freebsd script
and you pass in in the option to the script in the Exec line of the desktop entry

name of the jail with -j
the application name with -a
and -p on to enable audio

the wrapper-freebsd script passes in the DBUS_SESSION_BUS_ADDRESS
from the host to...
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you can do the same thing with Wayland or XWayland
 
using a jail and mounting /tmp

Code: 
/etc/jail.conf.d/ubuntu.conf

Code: 
ubuntu {
    # hostname/path
    host.hostname = "${name}";
    path = "/usr/local/jails/linux/${name}";

    # permissions
    allow.raw_sockets;
    exec.clean;
    persist;
    sysvmsg=inherit;
    sysvsem=inherit;
    sysvshm=inherit;
    enforce_statfs=1;

    # permissions
    devfs_ruleset=7;

    # network
    ip4.addr="lo1|10.10.0.5/24";

    # mount
    mount += "devfs           $path/dev      devfs           rw                      0       0";
    mount += "tmpfs           $path/dev/shm  tmpfs           rw,size=1g,mode=1777    0       0";
    mount += "fdescfs         $path/dev/fd   fdescfs         rw,linrdlnk             0       0";
    mount += "linprocfs       $path/proc     linprocfs       rw                      0       0";
    mount += "linsysfs        $path/sys      linsysfs        rw                      0       0";
    mount += "/tmp            $path/tmp      nullfs          rw                      0       0";
    mount += "/home           $path/home     nullfs          rw                      0       0";
    # uncomment the line below for the xdg runtime directory for wayland after creating it
    #mount += "/var/run/xdg/username $path/run/user/1001  nullfs rw            0       0";
}

rocky linux jail

NapoleonWils0n

Thread 'Davinci Resolve 19.1 installed in a Rocky Linux jail'

Davinci Resolve 19.1 video editor installed in a Rocky Linux 9 jail on Freebsd 14.1 p4

github.com

GitHub - NapoleonWils0n/davinci-resolve-freebsd-jail-rocky: Daviinci Resolve in a Rocky Linux Freebsd jail

Daviinci Resolve in a Rocky Linux Freebsd jail. Contribute to NapoleonWils0n/davinci-resolve-freebsd-jail-rocky development by creating an account on GitHub.
github.com github.com

Davinci Resolve on linux is actually tested with Rocky Linux
it used to be Centos

We use the Rocky-9-Container-Base.latest.x86_64.tar.xz to install into the jail

Nvidia and Cuda enabled
Audio routed from the jail to the host using a pulseaudio socket for zero latency
Video directory from the Freebsd host mounted inside the home directory in the jail
Opened using a Desktop entry on Freebsd
Click to expand...

There are 3 advantages...
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ubuntu chroot

NapoleonWils0n

Thread 'Davinci Resolve on Freebsd'

Davinci Resolve installed in a Ubuntu Mantic chroot on Freebsd


Davinci Resolve Freebsd git repository

github.com

GitHub - NapoleonWils0n/davinci-resolve-freebsd: Davinci Resolve Freebsd install using the Linuxulator

Davinci Resolve Freebsd install using the Linuxulator - NapoleonWils0n/davinci-resolve-freebsd
github.com github.com

Features

Nvidia and Cuda enabled
Davinci Resolve Displayed with Xwayland on Wayland or Xephyr on X11

Audio routed from the chroot to the host using a pulseaudio socket
Video directory from the Freebsd host mounted inside the chroot
Opened using a Desktop entry on Freebsd
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freebsd jail

NapoleonWils0n

Thread 'Jailfox - Firefox in a Freebsd Jail'

Running Firefox in a Freebsd classic jail


github.com

GitHub - NapoleonWils0n/jailfox: firefox in a freebsd jail

firefox in a freebsd jail. Contribute to NapoleonWils0n/jailfox development by creating an account on GitHub.
github.com github.com

Firefox in a Freebsd jail using Wayland
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You shouldn't have a separate /tmp for the Linuxulator. If you do not it will fall through to the system-wide /tmp and do the right thing. Instead of mounting over something that shouldn't be there you should remove /compat/ubuntu/tmp altogether.

You should have one for jails and VMs.
 
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