Unable to Upgrade/Install RealVNC Server v7.12.0 on RPi

I'm encountering a problem with upgrading/installing the VNC-Server-7.12.0-Linux-ARM.deb package onto a Raspberry Pi currently running Debian v12.6 (Bookworm) and VNC-Server-7.11.1. Three occurrences for 'Illegal instruction' are observed during installation (see below), which resulted in the server failing to startup on boot/reboot. Please advise on how I could resolve those three error messages.

pi@raspberrypi:~/Downloads $ sudo dpkg -i ./VNC-Server-7.12.0-Linux-ARM.deb
(Reading database ... 162370 files and directories currently installed.)
Preparing to unpack .../VNC-Server-7.12.0-Linux-ARM.deb ...
Unpacking realvnc-vnc-server (7.12.0.14) over (7.11.1.26) ...
Setting up realvnc-vnc-server (7.12.0.14) ...
Updating /etc/pam.d/vncserver
Updating /etc/pam.conf... done
Looking for font path... /usr/share/fonts/X11/Type1,built-ins (from xset).
Illegal instruction
Illegal instruction
Illegal instruction
Installed systemd unit for VNC Server in Service Mode daemon
Start or stop the service with:
  systemctl (start|stop) vncserver-x11-serviced.service
Mark or unmark the service to be started at boot time with:
  systemctl (enable|disable) vncserver-x11-serviced.service

Installed systemd unit for VNC Server in Virtual Mode daemon
Start or stop the service with:
  systemctl (start|stop) vncserver-virtuald.service
Mark or unmark the service to be started at boot time with:
  systemctl (enable|disable) vncserver-virtuald.service

Processing triggers for gnome-menus (3.36.0-1.1) ...
Processing triggers for mailcap (3.70+nmu1) ...
Processing triggers for desktop-file-utils (0.26-1) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...
Processing triggers for man-db (2.11.2-2) ...
pi@raspberrypi:~/Downloads $ 
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Comments

3 comments
  • Forgot to mention that the RPi platform in question is with the Raspberry Pi Zero W... of which I've three that are all behaving the same when trying to update their RealVNC Server from v7.11.1 to v7.12.0.

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  • Unsuccessful upgrade attempts via 'apt install':

    pi@raspberrypi:~/Downloads $ sudo apt install ./VNC-Server-7.12.0-Linux-ARM.deb
    Reading package lists... Done
    Building dependency tree... Done
    Reading state information... Done
    Note, selecting 'realvnc-vnc-server' instead of './VNC-Server-7.12.0-Linux-ARM.deb'
    The following packages will be upgraded:
      realvnc-vnc-server
    1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
    Need to get 0 B/7,394 kB of archives.
    After this operation, 200 kB of additional disk space will be used.
    Get:1 /home/pi/Downloads/VNC-Server-7.12.0-Linux-ARM.deb realvnc-vnc-server armhf 7.12.0.14 [7,394 kB]
    Reading changelogs... Done               
    (Reading database ... 162370 files and directories currently installed.)
    Preparing to unpack .../VNC-Server-7.12.0-Linux-ARM.deb ...
    Unpacking realvnc-vnc-server (7.12.0.14) over (7.11.1.26) ...
    Setting up realvnc-vnc-server (7.12.0.14) ...
    Updating /etc/pam.d/vncserver
    Updating /etc/pam.conf... done
    Looking for font path... /usr/share/fonts/X11/Type1,built-ins (from xset).
    Illegal instruction
    Illegal instruction
    Illegal instruction
    Installed systemd unit for VNC Server in Service Mode daemon
    Start or stop the service with:
      systemctl (start|stop) vncserver-x11-serviced.service
    Mark or unmark the service to be started at boot time with:
      systemctl (enable|disable) vncserver-x11-serviced.service

    Installed systemd unit for VNC Server in Virtual Mode daemon
    Start or stop the service with:
      systemctl (start|stop) vncserver-virtuald.service
    Mark or unmark the service to be started at boot time with:
      systemctl (enable|disable) vncserver-virtuald.service

    Processing triggers for desktop-file-utils (0.26-1) ...
    Processing triggers for hicolor-icon-theme (0.17-2) ...
    Processing triggers for gnome-menus (3.36.0-1.1) ...
    Processing triggers for man-db (2.11.2-2) ...
    Processing triggers for mailcap (3.70+nmu1) ...
    N: Download is performed unsandboxed as root as file '/home/pi/Downloads/VNC-Server-7.12.0-Linux-ARM.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
    pi@raspberrypi:~/Downloads $ 

    Successful downgrades back to RealVNC Server v7.11.1:

    pi@raspberrypi:~/Downloads $ sudo apt install ./VNC-Server-7.11.1-Linux-ARM.deb
    Reading package lists... Done
    Building dependency tree... Done
    Reading state information... Done
    Note, selecting 'realvnc-vnc-server' instead of './VNC-Server-7.11.1-Linux-ARM.deb'
    The following packages will be DOWNGRADED:
      realvnc-vnc-server
    0 upgraded, 0 newly installed, 1 downgraded, 0 to remove and 0 not upgraded.
    Need to get 0 B/7,318 kB of archives.
    After this operation, 200 kB disk space will be freed.
    Do you want to continue? [Y/n] y
    Get:1 /home/pi/Downloads/VNC-Server-7.11.1-Linux-ARM.deb realvnc-vnc-server armhf 7.11.1.26 [7,318 kB]
    dpkg: warning: downgrading realvnc-vnc-server from 7.12.0.14 to 7.11.1.26
    (Reading database ... 162370 files and directories currently installed.)
    Preparing to unpack .../VNC-Server-7.11.1-Linux-ARM.deb ...
    Unpacking realvnc-vnc-server (7.11.1.26) over (7.12.0.14) ...
    Setting up realvnc-vnc-server (7.11.1.26) ...
    Updating /etc/pam.d/vncserver
    Updating /etc/pam.conf... done
    Looking for font path... /usr/share/fonts/X11/Type1,built-ins (from xset).
    Installed systemd unit for VNC Server in Service Mode daemon
    Start or stop the service with:
      systemctl (start|stop) vncserver-x11-serviced.service
    Mark or unmark the service to be started at boot time with:
      systemctl (enable|disable) vncserver-x11-serviced.service

    Installed systemd unit for VNC Server in Virtual Mode daemon
    Start or stop the service with:
      systemctl (start|stop) vncserver-virtuald.service
    Mark or unmark the service to be started at boot time with:
      systemctl (enable|disable) vncserver-virtuald.service

    Processing triggers for desktop-file-utils (0.26-1) ...
    Processing triggers for hicolor-icon-theme (0.17-2) ...
    Processing triggers for gnome-menus (3.36.0-1.1) ...
    Processing triggers for man-db (2.11.2-2) ...
    Processing triggers for mailcap (3.70+nmu1) ...
    N: Download is performed unsandboxed as root as file '/home/pi/Downloads/VNC-Server-7.11.1-Linux-ARM.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
    pi@raspberrypi:~/Downloads $ 
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  • Boot log with RealVNC Server v7.12.0:

    Jul 27 19:37:11 raspberrypi systemd[1]: Started vncserver-x11-serviced.service - VNC Server in Service Mode daemon.

    Jul 27 19:37:11 raspberrypi systemd[1]: vncserver-x11-serviced.service: Main process exited, code=killed, status=4/ILL
    Jul 27 19:37:11 raspberrypi systemd[1]: vncserver-x11-serviced.service: Failed with result 'signal'.

    Jul 27 19:37:12 raspberrypi systemd[1]: vncserver-x11-serviced.service: Scheduled restart job, restart counter is at 1.
    Jul 27 19:37:12 raspberrypi systemd[1]: Stopped vncserver-x11-serviced.service - VNC Server in Service Mode daemon.
    Jul 27 19:37:12 raspberrypi systemd[1]: Started vncserver-x11-serviced.service - VNC Server in Service Mode daemon.
    Jul 27 19:37:12 raspberrypi systemd[1]: vncserver-x11-serviced.service: Main process exited, code=killed, status=4/ILL
    Jul 27 19:37:12 raspberrypi systemd[1]: vncserver-x11-serviced.service: Failed with result 'signal'.
    Jul 27 19:37:13 raspberrypi systemd[1]: vncserver-x11-serviced.service: Scheduled restart job, restart counter is at 2.
    Jul 27 19:37:13 raspberrypi systemd[1]: Stopped vncserver-x11-serviced.service - VNC Server in Service Mode daemon.
    Jul 27 19:37:13 raspberrypi systemd[1]: Started vncserver-x11-serviced.service - VNC Server in Service Mode daemon.

    Jul 27 19:37:13 raspberrypi systemd[1]: vncserver-x11-serviced.service: Main process exited, code=killed, status=4/ILL
    Jul 27 19:37:13 raspberrypi systemd[1]: vncserver-x11-serviced.service: Failed with result 'signal'.
    Jul 27 19:37:13 raspberrypi systemd[1]: vncserver-x11-serviced.service: Scheduled restart job, restart counter is at 3.
    Jul 27 19:37:13 raspberrypi systemd[1]: Stopped vncserver-x11-serviced.service - VNC Server in Service Mode daemon.
    Jul 27 19:37:13 raspberrypi systemd[1]: Started vncserver-x11-serviced.service - VNC Server in Service Mode daemon.
    Jul 27 19:37:13 raspberrypi systemd[1]: vncserver-x11-serviced.service: Main process exited, code=killed, status=4/ILL
    Jul 27 19:37:13 raspberrypi systemd[1]: vncserver-x11-serviced.service: Failed with result 'signal'.
    Jul 27 19:37:14 raspberrypi systemd[1]: vncserver-x11-serviced.service: Scheduled restart job, restart counter is at 4.
    Jul 27 19:37:14 raspberrypi systemd[1]: Stopped vncserver-x11-serviced.service - VNC Server in Service Mode daemon.
    Jul 27 19:37:14 raspberrypi systemd[1]: Started vncserver-x11-serviced.service - VNC Server in Service Mode daemon.
    Jul 27 19:37:14 raspberrypi systemd[1]: vncserver-x11-serviced.service: Main process exited, code=killed, status=4/ILL
    Jul 27 19:37:14 raspberrypi systemd[1]: vncserver-x11-serviced.service: Failed with result 'signal'.

    Jul 27 19:37:14 raspberrypi systemd[1]: vncserver-x11-serviced.service: Scheduled restart job, restart counter is at 5.
    Jul 27 19:37:14 raspberrypi systemd[1]: Stopped vncserver-x11-serviced.service - VNC Server in Service Mode daemon.
    Jul 27 19:37:14 raspberrypi systemd[1]: vncserver-x11-serviced.service: Start request repeated too quickly.
    Jul 27 19:37:14 raspberrypi systemd[1]: vncserver-x11-serviced.service: Failed with result 'signal'.
    Jul 27 19:37:14 raspberrypi systemd[1]: Failed to start vncserver-x11-serviced.service - VNC Server in Service Mode daemon.

     

    Boot log with RealVNC Server v7.11.1:

    Jul 27 13:01:43 raspberrypi systemd[1]: Started vncserver-x11-serviced.service - VNC Server in Service Mode daemon.

    Jul 27 13:01:44 raspberrypi vncserver-x11[485]: ServerManager: Server started
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