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===== Gentoo Notes ==

=== Helpful Links ==

[[https://wiki.gentoo.org/wiki/Gentoo_Cheat_Sheet|Gentoo Cheat Sheet]]

==== USE flags ==

Use flags are in the ''USE'' variable located at ''/etc/portage/make.conf''.

After changing the USE flags, use this command to recompile all the packages to reflect the new flags:

<code>
emerge --update --newuse --deep --quiet @world
</code>

==== Rebuild the Kernel on Gentoo ==

  * You'll want to cd to ''/usr/src/linux-<version>-gentoo''
  * Run ''make menuconfig'' to configure your kernel
  * Run ''make -j$TC && make -j$TC moddules_install && make install'' (where ''$TC'' is the thread count, i.e. the number of cores in your CPU+1)
  * Update grub with ''grub-mkconfig -o /boot/grub/grub.cfg''
  * Lastly, use ''genkernel initramfs'' to update your ''initramfs''

==== zsh == 

''emerge app-shells/zsh''

You'll also want to install the ''app-shells/zsh-completions'' package too.  Add the following to ''~/.zshrc'' to enable those additional completions:

<code>
autoload -U compinit promptinit
compinit
promptinit; prompt gentoo
</code>

==== xdm/sddm ==

''sddb'' stands for Simple Desktop Display Manager and provides us with a login screen and runs as a daemon.

Use the command ''/etc/init.d/xdm restart'' to restart xdm/sddm.  (TBH I'm not entirely sure what the relationship is between these two components.)

==== Searching for portage packages ==

''eix'' is a useful command for searching portage packages.   Install it with ''sudo emerge app-portage/eix``.

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