DESK-MP1-L/Development/Management of prebuilt packages
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| August 2023 | DESK-MP1-L-1.0.0 release | ||
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Contents
Introduction[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 easily install these additional packages 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-MP1-L uses by default the deb package format. As such, apt commands can be used for package management. Prebuilt packages are provided by a repository that DAVE Embedded Systems makes available for its customers.
Configuring the target[edit | edit source]
In order to use apt-get for runtime package management, you must perform an initial setup on the target machine for cases where the PACKAGE_FEED_* variables were not set as part of the image that is running on the target.
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-MX8M-L.
Configuring apt[edit | edit source]
Edit the file /etc/apt/apt.conf like this:
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-mx8mp:~# cat /etc/apt/sources.list.d/debian-10.list deb [trusted=yes] http://yocto.dave.eu/imx-5.4.70-2.3.0/ all/ deb [trusted=yes] http://yocto.dave.eu/imx-5.4.70-2.3.0/ aarch64/ deb [trusted=yes] http://yocto.dave.eu/imx-5.4.70-2.3.0/ aarch64-mx8mp/
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-mx8mp:~# rm -rf /var/lib/apt/lists/* root@desk-mx8mp:~# apt-get clean root@orca:~# apt-get update 0% [Working] Ign:1 http://yocto.dave.eu/imx-5.4.70-2.3.0 all/ InRelease Ign:2 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64/ InRelease Ign:3 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64-mx8mp/ InRelease Get:4 http://yocto.dave.eu/imx-5.4.70-2.3.0 all/ Release [1213 B] Get:5 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64/ Release [1217 B] Get:6 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64-mx8mp/ Release [1223 B] Ign:7 http://yocto.dave.eu/imx-5.4.70-2.3.0 all/ Release.gpg Ign:8 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64/ Release.gpg Ign:9 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64-mx8mp/ Release.gpg Get:10 http://yocto.dave.eu/imx-5.4.70-2.3.0 all/ Packages [146 kB] Get:11 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64/ Packages [2848 kB] Get:12 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64-mx8mp/ Packages [283 kB] Fetched 3280 kB in 6s (545 kB/s) Reading package lists... Done
Then, modify the cached package list due to the proper DAVE's server configuration:
sed -i 's/\.\//aarch64\//g' /var/lib/apt/lists/yocto.dave.eu_imx-5.4.70-2.3.0_aarch64_Packages sed -i 's/\.\//all\//g' /var/lib/apt/lists/yocto.dave.eu_imx-5.4.70-2.3.0_all_Packages sed -i 's/\.\//aarch64-mx8mp\//g' /var/lib/apt/lists/yocto.dave.eu_imx-5.4.70-2.3.0_aarch64-mx8mp_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 vim:
root@orca:~# apt-get install vim Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: vim-common vim-help vim-syntax vim-tutor vim-vimrc The following NEW packages will be installed: vim vim-common vim-help vim-syntax vim-tutor vim-vimrc 0 upgraded, 6 newly installed, 0 to remove and 20 not upgraded. Need to get 6584 kB of archives. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] Y Get:1 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64/ vim 8.1.1518-r0 [1051 kB] Get:2 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64/ vim-common 8.1.1518-r0 [2314 kB] Get:3 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64/ vim-help 8.1.1518-r0 [1757 kB] Get:4 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64/ vim-syntax 8.1.1518-r0 [1049 kB] Get:5 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64/ vim-tutor 8.1.1518-r0 [411 kB] Get:6 http://yocto.dave.eu/imx-5.4.70-2.3.0 aarch64/ vim-vimrc 8.1.1518-r0 [1596 B] Fetched 6584 kB in 9s (660 kB/s) Selecting previously unselected package vim. (Reading database ... 71726 files and directories currently installed.) Preparing to unpack .../vim_8.1.1518-r0_arm64.deb ... Unpacking vim (8.1.1518-r0) ... Selecting previously unselected package vim-common. Preparing to unpack .../vim-common_8.1.1518-r0_arm64.deb ... Unpacking vim-common (8.1.1518-r0) ... Selecting previously unselected package vim-help. Preparing to unpack .../vim-help_8.1.1518-r0_arm64.deb ... Unpacking vim-help (8.1.1518-r0) ... Selecting previously unselected package vim-syntax. Preparing to unpack .../vim-syntax_8.1.1518-r0_arm64.deb ... Unpacking vim-syntax (8.1.1518-r0) ... Selecting previously unselected package vim-tutor. Preparing to unpack .../vim-tutor_8.1.1518-r0_arm64.deb ... Unpacking vim-tutor (8.1.1518-r0) ... Selecting previously unselected package vim-vimrc. Preparing to unpack .../vim-vimrc_8.1.1518-r0_arm64.deb ... Unpacking vim-vimrc (8.1.1518-r0) ... Setting up vim (8.1.1518-r0) ... update-alternatives: Linking /bin/vi to /usr/bin/vim.vim update-alternatives: Linking /usr/bin/vim to /usr/bin/vim.vim update-alternatives: Linking /usr/bin/xxd to /usr/bin/xxd.vim Setting up vim-common (8.1.1518-r0) ... Setting up vim-help (8.1.1518-r0) ... Setting up vim-syntax (8.1.1518-r0) ... Setting up vim-tutor (8.1.1518-r0) ... Setting up vim-vimrc (8.1.1518-r0) ...
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-mx8mp:~# cat /etc/apt/sources.list.d/debian-10.list deb [trusted=yes] http://yocto.dave.eu/imx-5.4.70-2.3.0/ all/ deb [trusted=yes] http://yocto.dave.eu/imx-5.4.70-2.3.0/ aarch64/ deb [trusted=yes] http://yocto.dave.eu/imx-5.4.70-2.3.0/ aarch64-mx8mp/
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-mx8mp:~# apt-cache search vim vim-dbg - Vi IMproved - enhanced vi editor - Debugging files vim - Vi IMproved - enhanced vi editor vim-common - Vi IMproved - enhanced vi editor vim-src - Vi IMproved - enhanced vi editor - Source files vim-tutor - Vi IMproved - enhanced vi editor vim-vimrc - Vi IMproved - enhanced vi editor vim-syntax - Vi IMproved - enhanced vi editor vim-tools - Vi IMproved - enhanced vi editor vim-help - Vi IMproved - enhanced vi editor vim-dev - Vi IMproved - enhanced vi editor - Development files vim-doc - Vi IMproved - enhanced vi editor - Documentation files root@desk-mx8mp:~#
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-state alsa-states alsa-tools alsa-utils alsa-utils-aconnect alsa-utils-alsactl alsa-utils-alsaloop alsa-utils-alsamixer alsa-utils-alsatplg ... [snip] ... volatile-binds-dev wayland wayland-dev which which-dev wireless-regdb-static wireless-tools wpa-supplicant wpa-supplicant-cli wpa-supplicant-passphrase xinetd xz xz-dev root@desk-mx8mm:~#
