This task can be performed using DAVE Yocto pre-built package server available at the <code>http://yocto.dave.eu</code> address.
== Installing packages on target (manually) ==
To use <code>opkg</code> at runtime first of all you need to enable a channel, which commonly is a remote webserver that provide packages feed and the network interface with <code>DNS</code> configuration for accessing external http servers.binary packages itself
An example of network interface configuration for Internet access is described here below. Configuration can be done directly on serial console with the following commands:
where ''192.168.0.254'' is the <code>gateway</code> address and ''8.8.8.8'' is the <code>DNS server</code> (in this case Google's one).
Once the network interface is configured, the DAVE's Yocto Lizard package server can be accessed for package downloading:.
root@lizard:~# wget http://yocto.dave.eu/lizard/cortexa8hf-vfp-neon-2.6.37.2/<i>pack_name</i> Where:* <code>cortexa8hf-vfp-neon-2.6.37.2</code> is On the target edit the package directory* <code>http://yocto.dave.eu/lizardopkg</code> is the URL of the webserver For example: '''<pre class="board-terminal">root@lizard:~# wget http://yocto.dave.eu/lizard/cortexa8hf-vfp-neon-2.6.37.2/openssh-sftp_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipkConnecting to yocto.dave.eu (79.143.179.155:80)openssh-sftp_6.1p1-r 100% |*******************************| 46000 0:00:00 ETAroot@lizard:~# wget http://yocto.dave.eu/lizard/cortexa8hf-vfp-neon-2.6.37.2/openssh-keygen_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipkConnecting to yocto.dave.eu (79.143.179.155:80)0_cortexa8hf-vfp-neon-2.6.37.2.ipkopenssh-keygen_6.1p1 100% |*******************************| 79936 0:00:00 ETAroot@lizard:~# wget http://yocto.dave.eu/lizard/cortexa8hf-vfp-neon-2.6.37.2/openssh-sshd_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipk Connecting to yocto.dave.eu (79.143.179.155:80)openssh-sshd_6.1p1-r 100% |*******************************| 188k 0:00:00 ETAroot@lizard:~# wget http://yocto.dave.eu/lizard/cortexa8hf-vfp-neon-2.6.37.2/openssh-ssh_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipk Connecting to yocto.dave.eu (79.143.179.155:80)openssh-ssh_6.1p1-r0 100% |*******************************| 161k 0:00:00 ETAroot@lizard:~# wget http://yocto.dave.eu/lizard/cortexa8hf-vfp-neon-2.6.37.2/openssh_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipk Connecting to yocto.dave.eu (79.143.179.155:80)openssh_6.1p1-r0-ara 100% |*******************************| 890 0:00:00 ETAroot@lizard:~#</pre> After the required packages have been download, you need to install them using opkg: <pre class="board-terminal">root@lizard:~# opkgopkg must have one sub-command argumentusage: opkg [options...] sub-command [arguments...]where sub-command is one of: Package Manipulation: update Update list of available packages upgrade Upgrade installed packages install <pkgs> Install package(s) configure <pkgs> Configure unpacked package(s) remove <pkgs|regexp> Remove package(s) flag <flag> <pkgs> Flag package(s) <flag>=hold|noprune|user|ok|installed|unpacked (one per invocation) Informational Commands: list List available packages list-installed List installed packages list-upgradable List installed and upgradable packages list-changed-conffiles List user modified configuration files files <pkg> List files belonging to <pkg> search <file|regexp> List package providing <file> info [pkg|regexp] Display all info for <pkg> status [pkg|regexp] Display all status for <pkg> download <pkg> Download <pkg> to current directory compare-versions <v1> <op> <v2> compare versions using <= < > >= = << >> print-architecture List installable package architectures depends [-A] [pkgname|pat]+ whatdepends [-A] [pkgname|pat]+ whatdependsrec [-A] [pkgname|pat]+ whatrecommends[-A] [pkgname|pat]+ whatsuggests[-A] [pkgname|pat]+ whatprovides [-A] [pkgname|pat]+ whatconflicts [-A] [pkgname|pat]+ whatreplaces [-A] [pkgname|pat]+ Options: -A Query all packages not just those installed -V[<level>] Set verbosity level to <level>. --verbosity[=<level>] Verbosity levels: 0 errors only 1 normal messages (default) 2 informative messages 3 debug 4 debug level 2 -f <conf_file> Use <conf_file> as the opkg configuration file --conf <conf_file> --cache <directory> Use a package cache -d <dest_name> Use <dest_name> as the the root directory for --dest <dest_name> package installation, removal, upgrading. <dest_name> should be a defined dest name from the configuration file, (but can also be a directory name in a pinch). -o <dir> Use <dir> as the root directory for --offline-root <dir> offline installation of packages. --add-arch <arch>:<prio> Register architecture with given priority --add-dest <name>:<path> Register destination with given path --prefer-arch-to-version Use the architecture priority package rather than the higher version one if more than one candidate is found. Force Options: --force-depends Install/remove despite failed dependencies --force-maintainer Overwrite preexisting config files --force-reinstall Reinstall package(s) --force-overwrite Overwrite files from other package(s) --force-downgrade Allow opkg to downgrade packages --force-space Disable free space checks --force-postinstall Run postinstall scripts even in offline mode --force-remove Remove package even if prerm script fails --noaction No action -- test only --download-only No action -- download only --nodeps Do not follow dependencies --force-removal-of-dependent-packages Remove package and all dependencies --autoremove Remove packages that were installed automatically to satisfy dependencies -t Specify tmp-dir. --tmp-dir Specify tmp-dir. regexp could be something like 'pkgname*' '*file*' or similar e.g. opkg info 'libstd*' or opkg search '*libop*' or opkg remove 'libncur*'root@lizard:~#</pre> For example, for the <code>openssh</code> packages previously downloaded, you can install the packages on the target with the following command: <pre>root@lizard:~# opkg install openssh-keygen_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipkInstalling openssh-keygen (6.1p1-r0-arago0) to root...go0_cortexa8hf-vfp-neon-2.6Configuring openssh-keygen.root@lizard:~# opkg install openssh-scp_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipkInstalling openssh-scp (6.1p1-r0-arago0) to root...Configuring openssh-scp.update-alternatives: Linking //usr/bin/scp to /usr/bin/scp.opensshroot@lizard:~# opkg install openssh-sftp_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipkInstalling openssh-sftp (6.1p1-r0-arago0) to root...Configuring openssh-sftp.root@lizard:~# opkg install openssh-ssh_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipkInstalling openssh-ssh (6.1p1-r0-arago0) to root...Configuring openssh-ssh.update-alternatives: Linking //usr/bin/ssh to /usr/bin/ssh.opensshroot@lizard:~# opkg install openssh-sshd_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipkInstalling openssh-sshd (6.1p1-r0-arago0) to root...Running useradd commands...Note: username sshd already exists, not re-creating itConfiguring openssh-sshd. Adding system startup for /etc/init.d/sshd.Starting OpenBSD Secure Shell server: sshddone.root@lizard:~# opkg install openssh_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipkInstalling openssh (6.1p1-r0-arago0) to root...Configuring openssh.root@lizard:~#</pre> Once the system is restarted, the new openssh package will be activated using the installed scripts. For checking if the daemon is running, simply: <pre class="board-terminal">root@lizard:~# ps | grep ssh 660 root 3916 S /usr/sbin/sshd 747 root 3964 S {sshd} sshd: root@pts/0 754 root 1780 S grep sshroot@lizard:~#</pre> {{ImportantMessage|text=The package dependencies will NOT be resolved automatically.}} For example: <pre class="board-terminal">root@lizard:~# opkg install openssh_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipk Installing openssh (6.1p1-r0-arago0) to root...Collected errors: * satisfy_dependencies_for: Cannot satisfy the following dependencies for openssh: * openssh-ssh * openssh-keygen * openssh-sshd * * opkg_install_cmd: Cannot install package openssh.root@lizard:~#</pre> == Installing packages on target (using feed) == We need to tell <code>opkg</code> on the embedded system where to look for packages.
The opkg configuration file is /etc/opkg/opkg.conf.
Edit the opkg.conf file to look like this:
<pre>
<pre class="board-terminal">
root@lizard:~# opkg update
Downloading http://yocto.dave.eu/all/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/any/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/armv5ehf-vfp/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/armv5hf-vfp/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/armv5tehf-vfp/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/armv5thf-vfp/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/armv6hf-vfp/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/armv6thf-vfp/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/armv7ahf-vfp/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/armv7ahf-vfp-neon/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/armv7at2hf-vfp/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/armv7at2hf-vfp-neon/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/cortexa8hf-vfp/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/cortexa8hf-vfp-neon-2.6.37.2/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/cortexa8hf-vfp-neon/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/cortexa8t2hf-vfp/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/cortexa8t2hf-vfp-neon/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/lizard/Packages.gz.wget: server returned error: HTTP/1.1 404 Not FoundDownloading http://yocto.dave.eu/noarch/Packages.gz.wget: server returned error: HTTP/1.1 404 Not Found
Downloading http://yocto.dave.eu/lizard/cortexa8hf-vfp-neon-2.6.37.2/Packages.gz.
Inflating http://yocto.dave.eu/lizard/cortexa8hf-vfp-neon-2.6.37.2/Packages.gz.
Downloading http://yocto.dave.eu/lizard/all/update-rc.d_0.7-r5_all.ipk.
Configuring shadow-securetty.
Configuring update-alternatives-cworthworth.
Configuring openssh-ssh.
update-alternatives: Linking //usr/bin/ssh to /usr/bin/ssh.openssh
</pre>
== Installed Other useful OPKG commands == A brief guide to OPKG command line interface is [https://www.yoctoproject.org/tools-resources/projects/opkg here]. In the next section we'll show some example of OPKG usage. === List installed packages ===
To User can see which the list of installed packages are installed, it is possibile to use the with <code>opkg list-installed</code> option:
<pre class="board-terminal">root@lizard:~# opkg list-installed | grep opensshbase-passwd - 3.5.26-r2libattr1 - 2.4.46-r4libc6 - 2.15-r2-arago5libcap2 - 2.22-r5libcrypto1.0.0 - 1.0.1e-r15.0-arago9libgcc-s1 - 4.7.3-r2-arago5libgcrypt11 - 1.5.0-r2libgpg-error0 - 1.11-r0libz1 - 1.2.7-r0
openssh - 6.1p1-r0-arago0
openssh-keygen - 6.1p1-r0-arago0
openssh-ssh - 6.1p1-r0-arago0
openssh-sshd - 6.1p1-r0-arago0
shadow - 4.1.4.3-r13
shadow-securetty - 4.1.4.3-r2-arago0
update-alternatives-cworth - 1:0.1.8+svnr649-r13.0-arago0
update-rc.d - 0.7-r5
root@lizard:~#
</pre>
=== List available packages ===
To list the available packages into the current configured channels use <code>opkg list</code>
<pre>
root@lizard:~# opkg list
a52dec - 0.7.4-r4 - liba52 version 0.7.4-r4 Library for reading some sort of media format.
a52dec-doc - 0.7.4-r4 - liba52 version 0.7.4-r4 Library for reading some sort of media format.
acl - 2.2.51-r3 - acl version 2.2.51-r3 utilities for access control list
acl-dbg - 2.2.51-r3 - acl version 2.2.51-r3 - Debugging files utilities for access control
list This package contains ELF symbols and related sources for
debugging purposes.
acl-dev - 2.2.51-r3 - acl version 2.2.51-r3 - Development files utilities for access control
list This package contains symbolic links, header files, and related
items necessary for software development.
acl-doc - 2.2.51-r3 - acl version 2.2.51-r3 - Documentation files utilities for access control
list This package contains documentation.
acl-locale-de - 2.2.51-r3 - acl version 2.2.51-r3 - de translations utilities for access control
list This package contains language translation files for the de
locale.
acl-locale-es - 2.2.51-r3 - acl version 2.2.51-r3 - es translations utilities for access control
list This package contains language translation files for the es
locale.
acl-locale-fr - 2.2.51-r3 - acl version 2.2.51-r3 - fr translations utilities for access control
list This package contains language translation files for the fr
locale.
acl-locale-gl - 2.2.51-r3 - acl version 2.2.51-r3 - gl translations utilities for access control
list This package contains language translation files for the gl
locale.
acl-locale-pl - 2.2.51-r3 - acl version 2.2.51-r3 - pl translations utilities for access control
list This package contains language translation files for the pl
[...]
</pre>
=== Package info ===
To see a package characteristics use <code>opkg info <package_name> </code>:
<pre>
root@lizard:~# opkg info openssh
Package: openssh
Version: 6.1p1-r0-arago0
Depends: openssh-scp, openssh-ssh, openssh-keygen, openssh-sshd
Recommends: update-rc.d
Conflicts: dropbear
Status: install user installed
Section: console/network
Architecture: cortexa8hf-vfp-neon-2.6.37.2
Maintainer: OE-Core Developers <openembedded-core@lists.openembedded.org>
MD5Sum: 12d42e54c312a08c4321125ec4a1194b
Size: 890
Filename: openssh_6.1p1-r0-arago0_cortexa8hf-vfp-neon-2.6.37.2.ipk
Source: ftp://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-6.1p1.tar.gz file://nostrip.patch file://sshd_config file://ssh_config file://init file://openssh-CVE-2011-4327.patch
Description: Secure rlogin/rsh/rcp/telnet replacement Secure rlogin/rsh/rcp/telnet
replacement (OpenSSH) Ssh (Secure Shell) is a program for logging into
a remote machine and for executing commands on a remote machine.
Installed-Time: 1508849774
root@lizard:~#
</pre>
== References ==
{{reflist}}
