Debian basics

We noticed that not only Debian-users like Grml but also people coming from the BSD-section, Gentoo-Linux and so on. You don't need any Debian knowledge to use Grml, but if you would like to use the package management you should know some basics. The following table provides a comparison of the package management of Debian compared with some other well known package management systems:

Package management of *nix

Action Debian Gentoo RPM OpenBSD BSD Ports
useful tools apt-file app-portage/esearch, app-portage/portage-utils, app-portage/gentoolkit, app-portage/eix yum, rpmbuild
search for foobar apt-cache search foobar emerge search foobar or esearch foobar yum search foobar grep foobar index.txt cd /usr/ports/ && make search key=foobar
show all packages that match 'pattern' dpkg -S pattern qfile pattern or equery b(elongs) pattern grep foobar index.txt cd /usr/ports/ && make search key=foobar
list files in installed $package dpkg -L $package qlist $package or equery f(iles) $package rpm -q –list $package pkg_info -L $package
list files in local $package dpkg -c $package.deb rpm -qpl $package.rpm
show description of $package apt-cache show $package eix -S $package rpm -qpi $package pkg_info $package
show dependencies of $package apt-cache depends $package emerge -pv $package rpm -qpR $package pkg_info -r $package
show reverse dependencies of $package apt-cache rdepends $package equery d(epends) $package (1) or qdepends -a $package pkg_info -k $package
show policy for $package apt-cache policy $package emerge search $package pkg_info $package
update list of packages (/etc/apt/sources.list) apt-get update emerge sync (or esync, also rebuilds index for esearch) rpm –rebuilddb wget ftp://ftp.openbsd.org/release/packages/`arch`/index.txt
upgrade software apt-get upgrade emerge -u foobar rpm -U $package pkg_add -r $package
simulate upgrade apt-get -s upgrade emerge -pvut foobar (before replacing, it is always simulated)
simulate installation of package dpkg -i –no-act $package.deb emerge -pv $package rpm -i –test $package.rpm
upgrade the distribution (including dependencies) apt-get dist-upgrade emerge -uD world run install ISO or Download all Install sets to the local HDD and move the new “bsd.rd” to /bsd. After the reboot choose “upgrade” and install the install sets from HDD. After the installation use pkg_add -u to upgrade your installed software too.
install $package apt-get install $package emerge $package rpm -i $package pkg_add $package cd /usr/ports/<category>/<package> && make install [clean]
install a specific version of $package apt-get install $package=version emerge =$package-version version info is contained in package name
install $package from specific release apt-get -t release install $package edit /etc/portage/package.keywords fetch another index.txt from a different release (it is NOT recommented to use Versions for another release)
remove $package apt-get remove $package emerge -C $package rpm -e $package pkg_delete $package
remove $package and purge configuration files apt-get –purge remove $package CONFIG_PROTECT=”” emerge -C $package that is the default
reinstall $package apt-get –reinstall install $package emerge $package rpm -U –force $package pkg_add -r $package
download .deb files of $package apt-get –download-only install $package wget `grep pkgname index.txt`
download source of $package apt-get source $package emerge -f $package cd /usr/ports/<category>/<package> && make fetch
install debian package dpkg -i $package.deb rpm -i $package pkg_add $package
show installed and removed packages dpkg -l qlist -I -v rpm -qa ls /var/db/pkg/
show status of $package dpkg -l $package eix $package pkg_info $package
show all packages that match 'pattern' dpkg -S pattern emerge search foo or qsearch foo or esearch foo rpm -qa PIPE grep pattern grep pattern index.txt
re-run the configuration for $package dpkg-reconfigure $package vi /usr/local/etc/<package>.conf
show update status apt-get [dist-]upgrade pkg_version $package

(1) list all direct dependencies matching pkgspec

Another frontend and easy to handle system to the debian package management is the ncurses based 'aptitude'. 'aptitude' can also be used in a console-oriented way (like apt-get). Just replace 'apt-get' in the above commands with 'aptitude'. As of Debian Sarge this is even the prefered way to install and upgrade packages, as 'aptitude' is better in handling dependencies.

For handling /etc/apt/sources.list take a look at the apt-howto basics, for further information on package management read chapter 3 of apt-howto.

Using the grml-repository

See grml.org/files/ for instructions how to use the grml-repository. You can use the grml-repos even if you don't use a grml-system but any other Debian system. With introduction of apt-0.6 it's possible to check integrity of the packages. The following warnings will disappear then:

W: GPG error: http://deb.grml.org grml-stable Release:
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY F61E2E7CECDEA787
WARNING: The following packages cannot be authenticated!

For the grml-repository just run:

apt-get --allow-unauthenticated install grml-debian-keyring

or:

gpg --keyserver subkeys.pgp.net --recv-keys F61E2E7CECDEA787
gpg --export F61E2E7CECDEA787 > /etc/apt/grml.key
apt-key add /etc/apt/grml.key

Or if you do not want to store the key in a file:

gpg --keyserver subkeys.pgp.net --recv-keys F61E2E7CECDEA787
gpg --export F61E2E7CECDEA787 | apt-key add -

Or even simpler, in one line:

apt-key adv --keyserver subkeys.pgp.net --recv-keys F61E2E7CECDEA787

Links/Resources

General

Getting help

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Developers

 
debian.txt · Last modified: 2011/10/13 23:55 (external edit)
 
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