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---
format: rst
toc: no
...
===========================
Debian Linux
===========================
See also `freebsd </software/freebsd-tricks>`_ and
`unix </software/unix-tricks>`_ tricks.
Some gotchas from installing debian a few times:
* To enable sshd in ubuntu install ``openssh-server``
* Massive ``ssh`` headache issues from around 2007-2008; make sure to check on
these.
* ``git`` is not what you want; you want ``git-core``
* Python transition should be better, but I couldn't find a way.
To get to python 2.5 on etch, do something like::
Edit /usr/share/python/debian_defaults to this Code:
# the default python version
default-version = python2.5
# all supported python versions
supported-versions = python2.4, python2.5
# formerly supported python versions
old-versions = python2.3
# unsupported versions, including older versions
unsupported-versions = python2.3
Then sudo pycentral updatedefault python2.4 python2.5
And change the symlink /usr/bin/python to point to python2.5
* Make sure to install things like bzip2, unzip, less, etc
* ``bash`` by default takes a very long time to initialize because the
auto-completion scripts are loaded multiple times; disable this in
``~/.bashrc``? See also [bash].
* For building stuff you want ``build-essential``
* For the usual system man pages ("Linux Programmer's Manual"), you may need
to install 'manpages-dev'
* To install emacs without an X environment, use ``emacs23-nox`` (or a more
recent version).
* To change time zone: ``sudo dpkg-reconfigure tzdata``
* Might want oss-comapt for, eg, baudline?
Debian Package Tools
------------------------------
``dkpg -S somefile`` shows what packages a given file were installed by. ``dpkg
-L somepackage`` lists all the files installed by that package.
``apt-rdepends -r somepackage`` shows all packages depending on a given
package, recursively. You probably just want the first group, not the full
recursive tree.
To *not* install "recommended" or "suggested" packages, pass ``-R`` as an
argument to ``aptitute``. To find out *why* a package has been installed (or
guess why it might be?) use the ``aptitude why <package>`` command.
To extract the contents of a .deb file, use the ``ar`` command, then extract
data.tar.gz:
ar vx somepackage.deb
tar xvf data.tar.gz
Debian Packaging
-------------------
sudo aptitude install gcc-4.4-arm-linux-gnueabi
Wheezy to Jessie Migration
-----------------------------
Had trouble doing dist-upgrade. Ran `sudo apt-get install init` to fix init and
then continued with dist-upgrade.
Permissions problem with changing wifi settings ("(32) Not authorized to
control networking"). Tried:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=749778`
Add a Launchpad PPA
----------------------
First, deps:
sudo apt-get install software-properties-common python-software-properties
Then:
sudo add-apt-repository ppa:some/ppa
If it's an Ubuntu-only PPA, you'll need to edit the
`/etc/apt/sources.list.d/blah.list` and substitute the best Debian alternative.
Eg, for wheezy, 'trusty' is probably the closest.
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