I wanna install desktop on the pegasus, but something wrong

Please provide the following info (check/uncheck the boxes after creating this topic):
Software Version
DRIVE OS Linux 5.2.6
[*] DRIVE OS Linux 5.2.6 and DriveWorks 4.0
DRIVE OS Linux 5.2.0
DRIVE OS Linux 5.2.0 and DriveWorks 3.5
NVIDIA DRIVE™ Software 10.0 (Linux)
NVIDIA DRIVE™ Software 9.0 (Linux)
other DRIVE OS version
other

Target Operating System
[*] Linux
QNX
other

Hardware Platform
NVIDIA DRIVE™ AGX Xavier DevKit (E3550)
[*] NVIDIA DRIVE™ AGX Pegasus DevKit (E3550)
other

SDK Manager Version
1.8.3.10431
[*] other(1.8.4)

Host Machine Version
[*] native Ubuntu 18.04
other

hi,
i wanna enable display on the pegasus Xavier A and B,
after running “sudo apt-get install gdm3 ubuntu-unity-desktop”
i get some errors like this:

The following packages have unmet dependencies:
gdm3 : Depends: libcanberra-gtk3-0 (>= 0.25) but it is not going to be installed
Depends: libgtk-3-0 (>= 3.0.0) but it is not going to be installed
Depends: gnome-session-bin (>= 3.10) but it is not going to be installed
Depends: gnome-settings-daemon (>= 3.24) but it is not going to be installed
Depends: gnome-shell (>= 3.19.92) but it is not going to be installed
Depends: librsvg2-common but it is not going to be installed
Depends: libglib2.0-bin (>= 2.35.0) but it is not going to be installed
Recommends: zenity but it is not going to be installed
ubuntu-unity-desktop : Depends: ghostscript-x but it is not going to be installed
Depends: gnome-session-canberra but it is not going to be installed
Depends: gstreamer1.0-packagekit but it is not going to be installed
Depends: gvfs-bin but it is not going to be installed
Depends: language-selector-gnome but it is not going to be installed
Depends: lightdm but it is not going to be installed
Depends: nautilus but it is not going to be installed
Depends: notify-osd but it is not going to be installed
Depends: printer-driver-pnm2ppa but it is not going to be installed
Depends: software-properties-gtk but it is not going to be installed
Depends: ubuntu-artwork but it is not going to be installed
Depends: ubuntu-release-upgrader-gtk but it is not going to be installed
Depends: ubuntu-settings but it is not going to be installed
Depends: unity but it is not going to be installed
Depends: unity-control-center but it is not going to be installed
Depends: unity-greeter but it is not going to be installed
Depends: unity-session but it is not going to be installed
Depends: unity-settings-daemon but it is not going to be installed
Depends: update-manager but it is not going to be installed
Depends: update-notifier
Depends: xdg-user-dirs-gtk but it is not going to be installed
Depends: yelp but it is not going to be installed
Depends: zenity but it is not going to be installed
Recommends: a11y-profile-manager-indicator but it is not going to be installed
Recommends: acpi-support but it is not installable
Recommends: activity-log-manager but it is not going to be installed
Recommends: aisleriot but it is not going to be installed
Recommends: apport-gtk but it is not going to be installed
Recommends: baobab but it is not going to be installed
Recommends: bluez-cups but it is not going to be installed
Recommends: cheese but it is not going to be installed
Recommends: cups but it is not going to be installed
Recommends: cups-bsd but it is not going to be installed
Recommends: cups-client but it is not going to be installed
Recommends: cups-filters but it is not going to be installed
Recommends: deja-dup but it is not going to be installed
Recommends: eog but it is not going to be installed
Recommends: evince but it is not going to be installed
Recommends: file-roller but it is not going to be installed
Recommends: firefox but it is not going to be installed
Recommends: gedit but it is not going to be installed
Recommends: gir1.2-gmenu but it is not installable
Recommends: gnome-bluetooth but it is not going to be installed
Recommends: gnome-calculator but it is not going to be installed
Recommends: gnome-calendar but it is not going to be installed
Recommends: gnome-disk-utility but it is not going to be installed
Recommends: gnome-font-viewer but it is not going to be installed
Recommends: gnome-keyring but it is not going to be installed
Recommends: gnome-logs but it is not going to be installed
Recommends: gnome-mahjongg but it is not going to be installed
Recommends: gnome-mines but it is not going to be installed
Recommends: gnome-orca but it is not going to be installed
Recommends: gnome-power-manager but it is not going to be installed
Recommends: gnome-screensaver but it is not going to be installed
Recommends: gnome-screenshot but it is not going to be installed
Recommends: gnome-software-plugin-snap but it is not going to be installed
Recommends: gnome-sudoku but it is not going to be installed
Recommends: gnome-system-log but it is not going to be installed
Recommends: gnome-system-monitor but it is not going to be installed
Recommends: gnome-terminal but it is not going to be installed
Recommends: gucharmap but it is not going to be installed
Recommends: gvfs-fuse but it is not going to be installed
Recommends: hplip but it is not going to be installed
Recommends: ibus but it is not going to be installed
Recommends: ibus-gtk3 but it is not going to be installed
Recommends: ibus-table but it is not going to be installed
Recommends: libgail-common but it is not going to be installed
Recommends: libproxy1-plugin-gsettings but it is not going to be installed
Recommends: libproxy1-plugin-networkmanager but it is not going to be installed
Recommends: libreoffice-gnome but it is not going to be installed
Recommends: memtest86+ but it is not installable
Recommends: mousetweaks but it is not going to be installed
Recommends: nautilus-share but it is not going to be installed
Recommends: network-manager-gnome but it is not going to be installed
Recommends: network-manager-pptp-gnome but it is not going to be installed
Recommends: onboard but it is not going to be installed
Recommends: overlay-scrollbar-gtk2 but it is not going to be installed
Recommends: packagekit but it is not going to be installed
Recommends: printer-driver-brlaser but it is not going to be installed
Recommends: printer-driver-c2esp but it is not going to be installed
Recommends: printer-driver-foo2zjs but it is not going to be installed
Recommends: printer-driver-ptouch but it is not going to be installed
Recommends: printer-driver-pxljr but it is not going to be installed
Recommends: printer-driver-sag-gdi but it is not going to be installed
Recommends: printer-driver-splix but it is not going to be installed
Recommends: pulseaudio-module-bluetooth but it is not going to be installed
Recommends: remmina but it is not going to be installed
Recommends: rhythmbox but it is not going to be installed
Recommends: seahorse but it is not going to be installed
Recommends: shotwell but it is not going to be installed
Recommends: simple-scan but it is not going to be installed
Recommends: system-config-printer but it is not going to be installed
Recommends: thunderbird but it is not going to be installed
Recommends: thunderbird-gnome-support but it is not going to be installed
Recommends: totem but it is not going to be installed
Recommends: transmission-gtk but it is not going to be installed
Recommends: ubuntu-docs but it is not going to be installed
Recommends: ubuntu-software but it is not going to be installed
Recommends: unity-webapps-common but it is not installable
Recommends: usb-creator-gtk but it is not installable
Recommends: vino but it is not going to be installed
Recommends: zeitgeist-datahub but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

after “sudo apt-get update”
i got these:
Hit:1 Index of /ubuntu-ports bionic InRelease
Get:2 Index of /ubuntu-ports bionic-updates InRelease [88.7 kB]
Get:3 Index of /ubuntu-ports bionic-security InRelease [88.7 kB]
Reading package lists… Done
E: Release file for http://ports.ubuntu.com/ubuntu-ports/dists/bionic-updates/InRelease is not valid yet (invalid for another 559d 7h 54min 41s). Updates for this repository will not be applied.
E: Release file for http://ports.ubuntu.com/ubuntu-ports/dists/bionic-security/InRelease is not valid yet (invalid for another 559d 7h 53min 7s). Updates for this repository will not be applied.

would anyone give me some advice?

Dear @jeasonli,
For enabling display on target, Please check the discussions in similar topic threads in the forum like No Monitor Display for DriveOS 5.2.6.0 and Error trying to connect monitor .

Does that mean, Just after the installation, you notice issue with sudo apt-get update on target? Just make sure the target is connected to internet.

Dear @SivaRamaKrishnaNV ,
thank you for your reply.

About connecting to Internet, I found that the pegasus was using a “Expired date” which is 2021-xx-xx. After I update the system date, “sudo apt-get update” work well.

About enable display, I install the desktop, I found that I should choose “lightdm” for default display-manager between gdm3 or lightdm instead of “gdm3”, after reboot pegasus I got the desktop on my display.

Best regrads.

1 Like

Thanks @jeasonli for your update and glad to hear the issue is resolved.

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