DESK-MX9-L/Development/Application examples/Package management with apt-get
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| 2024/02/02 | DESK-MX9-L-5.0.0 release | ||
| 2024/04/17 | DESK-MX9-L-5.1.0 release | ||
Contents
Package management with apt-get[edit | edit source]
During the development of custom applications, developers generally realize that they need to add libraries and other software packages to the root file systems to make their code run properly. If these packages are prebuilt, developers can install them onto the root file system very easily. By configuring the target as described in this document, they achieve a user experience similar to the one you have with a desktop Linux distro such as Ubuntu. desk-mx93-L uses by default the deb package format. As such, apt commands can be used for package management. Prebuilt packages are provided by this repository that DAVE Embedded Systems makes available for its customers.
apt-get[edit | edit source]
The following instructions detail how to use apt-get for installing packages with Yocto repositories created by DAVE's build system for desk-mx93-L.
Configuring apt[edit | edit source]
Edit the file /etc/apt/apt.conf like this:
root@desk-mx93-rev1:~# cat /etc/apt/apt.conf APT::Architecture "arm64"; APT::Get::AllowUnauthenticated "true"; Acquire::Languages "none";
Edit the file /etc/apt/sources.list.d/debian-10.list like this:
root@desk-mx93-rev1:~# cat /etc/apt/sources.list.d/debian-10.list deb [trusted=yes] http://yocto.dave.eu/desk-mx9-l-5.1.0/ all/ deb [trusted=yes] http://yocto.dave.eu/desk-mx9-l-5.1.0/ armv8a-mx93/ deb [trusted=yes] http://yocto.dave.eu/desk-mx9-l-5.1.0/ armv8a/ deb [trusted=yes] http://yocto.dave.eu/desk-mx9-l-5.1.0/ desk_mx93_rev1/
Execute the following commands in order to re-create the apt cache based on the new server's list:
rm -rf /var/lib/apt/lists/* apt-get clean apt-get update
root@desk-mx93-rev1:~# rm -rf /var/lib/apt/lists/* root@desk-mx93-rev1:~# apt-get clean root@desk-mx93-rev1:~# apt-get update Ign:1 http://yocto.dave.eu/desk-mx9-l-5.1.0 all/ InRelease Ign:2 http://yocto.dave.eu/desk-mx9-l-5.1.0 armv8a-mx93/ InRelease Ign:3 http://yocto.dave.eu/desk-mx9-l-5.1.0 armv8a/ InRelease Ign:4 http://yocto.dave.eu/desk-mx9-l-5.1.0 desk_mx93_rev1/ InRelease Get:5 http://yocto.dave.eu/desk-mx9-l-5.1.0 all/ Release [1215 B] Get:6 http://yocto.dave.eu/desk-mx9-l-5.1.0 armv8a-mx93/ Release [1223 B] Get:7 http://yocto.dave.eu/desk-mx9-l-5.1.0 armv8a/ Release [1218 B] Get:8 http://yocto.dave.eu/desk-mx9-l-5.1.0 desk_mx93_rev1/ Release [1226 B] Ign:9 http://yocto.dave.eu/desk-mx9-l-5.1.0 all/ Release.gpg Ign:10 http://yocto.dave.eu/desk-mx9-l-5.1.0 armv8a-mx93/ Release.gpg Ign:11 http://yocto.dave.eu/desk-mx9-l-5.1.0 armv8a/ Release.gpg Ign:12 http://yocto.dave.eu/desk-mx9-l-5.1.0 desk_mx93_rev1/ Release.gpg Get:13 http://yocto.dave.eu/desk-mx9-l-5.1.0 all/ Packages [182 kB] Get:14 http://yocto.dave.eu/desk-mx9-l-5.1.0 armv8a-mx93/ Packages [105 kB] Get:15 http://yocto.dave.eu/desk-mx9-l-5.1.0 armv8a/ Packages [4319 kB] Get:16 http://yocto.dave.eu/desk-mx9-l-5.1.0 desk_mx93_rev1/ Packages [278 kB] Fetched 4889 kB in 7s (732 kB/s) Reading package lists... Done W: Conflicting distribution: http://yocto.dave.eu/desk-mx9-l-5.1.0 all/ Release (expected all/ but got ) W: Conflicting distribution: http://yocto.dave.eu/desk-mx9-l-5.1.0 armv8a-mx93/ Release (expected armv8a-mx93/ but got ) W: Conflicting distribution: http://yocto.dave.eu/desk-mx9-l-5.1.0 armv8a/ Release (expected armv8a/ but got ) W: Conflicting distribution: http://yocto.dave.eu/desk-mx9-l-5.1.0 desk_mx93_rev1/ Release (expected desk_mx93_rev1/ but got ) root@desk-mx93-rev1:~#
Then, modify the cached package list due to the proper DAVE's server configuration:
sed -i 's/\.\//all\//g' /var/lib/apt/lists/yocto.dave.eu_desk-mx9-l-5.1.0_all_Packages sed -i 's/\.\//armv8a-mx93\//g' /var/lib/apt/lists/yocto.dave.eu_desk-mx9-l-5.1.0_armv8a-mx93_Packages sed -i 's/\.\//armv8a\//g' /var/lib/apt/lists/yocto.dave.eu_desk-mx9-l-5.1.0_armv8a_Packages sed -i 's/\.\//desk%5fmx93%5frev1\//g' /var/lib/apt/lists/yocto.dave.eu_desk-mx9-l-5.1.0_desk%5fmx93%5frev1_Packages
Installing packages on target[edit | edit source]
We assume that network interface has been already configured for Internet access. In any case, a simple network configuration can be done according to the How to configure the network interfaces wiki page.
The target is finally ready to install new packages. The following example shows for instance the installation of autoconf-archive:
root@desk-mx93-rev1:~# apt-get install autoconf-archive Reading package lists... Done Building dependency tree... Done The following NEW packages will be installed: autoconf-archive 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 316 kB of archives. After this operation, 0 B of additional disk space will be used. Get:1 http://yocto.dave.eu/desk-mx9-l-5.1.0 all/ autoconf-archive 2023.02.20-r0 [316 kB] Fetched 316 kB in 0s (803 kB/s) Selecting previously unselected package autoconf-archive. (Reading database ... 61836 files and directories currently installed.) Preparing to unpack .../autoconf-archive_2023.02.20-r0_all.deb ... Unpacking autoconf-archive (2023.02.20-r0) ... Setting up autoconf-archive (2023.02.20-r0) ... root@desk-mx93-rev1:~#
Other useful apt commands[edit | edit source]
List of configured software repositories[edit | edit source]
As shown before, the target is configured for accessing the Yocto repositories as listed in the /etc/apt/sources.list.d apt configuration directory:
root@desk-mx93-rev1:~# cat /etc/apt/sources.list.d/debian-10.list deb [trusted=yes] http://yocto.dave.eu/desk-mx9-l-5.1.0/ all/ deb [trusted=yes] http://yocto.dave.eu/desk-mx9-l-5.1.0/ armv8a-mx93/ deb [trusted=yes] http://yocto.dave.eu/desk-mx9-l-5.1.0/ armv8a/ deb [trusted=yes] http://yocto.dave.eu/desk-mx9-l-5.1.0/ desk_mx93_rev1/
Search for packages[edit | edit source]
To search for an available package into the current configured channels use apt-cache search
Please note that this will show all packages, it's usually more useful to grep for a pattern, e.g.:
root@desk-mx93-rev1:~# apt-cache search vim vim-common - Vi IMproved - enhanced vi editor vim-dev - Vi IMproved - enhanced vi editor - Development files vim-doc - Vi IMproved - enhanced vi editor - Documentation files vim-help - Vi IMproved - enhanced vi editor vim-src - Vi IMproved - enhanced vi editor - Source files vim-syntax - Vi IMproved - enhanced vi editor vim-tiny-dev - Vi IMproved - enhanced vi editor (with tiny features) - Development files vim-tiny-src - Vi IMproved - enhanced vi editor (with tiny features) - Source files vim-tiny - Vi IMproved - enhanced vi editor (with tiny features) vim-tools - Vi IMproved - enhanced vi editor vim-tutor - Vi IMproved - enhanced vi editor vim-vimrc - Vi IMproved - enhanced vi editor vim-xxd - Vi IMproved - enhanced vi editor vim - Vi IMproved - enhanced vi editor root@desk-mx93-rev1:~#
List of installed packages[edit | edit source]
User can see the list of installed packages with dpkg --get-selections | sed 's:install$::' (sed removes the install string from the output list)
acl acl-dev adwaita-icon-theme-symbolic alsa-conf alsa-plugins-pulseaudio-conf alsa-state alsa-states alsa-tools alsa-topology-conf alsa-ucm-conf alsa-utils alsa-utils-aconnect alsa-utils-alsactl alsa-utils-alsaloop alsa-utils-alsamixer alsa-utils-alsatplg alsa-utils-alsaucm alsa-utils-amixer alsa-utils-aplay alsa-utils-aseqdump alsa-utils-aseqnet ... [snip] ... wpa-supplicant-cli wpa-supplicant-passphrase wpa-supplicant-plugins xinetd xkeyboard-config xkeyboard-config-dev xkeyboard-config-locale-en-gb xxhash xz xz-dev zstd zstd-dev root@desk-mx93-rev1:~#
