Gentoo

External Pointers

• http://www.gentoo.org/ - home
• http://www.gentoo.org/doc/en/ - docs
• http://www.gentoo.org/doc/en/handbook/index.xml - handbook
• http://gentoo-wiki.com/Main_Page - wiki
• http://www.gentoo.org/main/en/mirrors.xml - mirrors
• http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=1 - installing gentoo
• http://gentoo-wiki.com/HOWTO_Xen_and_Gentoo - Gentoo and Xen
• http://bugs.gentoo.org/ - bugs

Internal Pointers

• Linux - open-source and free Unix-type operating system
• ZoneMinder - linux camera-based home security software
• UnixGeekTools - other great tools for unix geeks

emerge

• http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=2&chap=3
• update the portage tree - emerge --sync
• find package - emerge --search pdf, emerge --searchdesc pdf
• removing a package - emerge --unmerge xyz
• create a prebuilt package - emerge --quickpkg
• build package - emerge --buildpkg
• build package only - emerge --buildpkgonly
• install pre-built package - emerge --usepkg --getbinpkg
• search for updates - emerge -Dup world - man emerge

Masked Packages

• http://gentoo-wiki.com/TIP_Dealing_with_masked_packages
• man emerge

Updating ports

• updating your system - emerge --update --ask world
• updating entire system - emerge --update --deep world
• full update - emerge --update --deep --newuse world
• full rebuild removing orphaned dependencies

# emerge --update --deep --newuse world # emerge --depclean # revdep-rebuild

• problems, see: http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=2&chap=1#doc_chap4

building kernel

• emerge pciutils - lspci
• upgrade kernel source - emerge -u gentoo-sources - cd /usr/src/linux; make menuconfig - make && make modules_install - mount /boot; cp arch/i386/boot/bzImage /boot/<kernel-version>
• find available modules: find /lib/modules/<kernel version>/ -type f -iname '*.o' -or -iname '*.ko' - vi /boot/grub.conf
• autoloaded modules: /etc/modules.autoload.d/kernel-2.6

rc-update

• add and remove init scripts to a runlevel
• rc-update show
• rc-update add sshd default
• rc-update del xyz
• rc-status
• /etc/init.d/sshd start

Gentoolkit

• http://www.gentoo.org/doc/en/gentoolkit.xml
• install - emerge gentoolkit
• determine source package for file - equery belongs /usr/bin/xyz
• verify package integrity - equery check xyz
• determine packages depending on xyz - equery depends xyz
• dependency graph for specified package - equery depgraph xyz
• files belonging to package - equery files xyz
• packages with USE flag xyz - equery hasuse xyz
• search for packages - equery list xyz
• determine package size - equery size xyz
• list of use flags for package - equery uses xyz
• determine ebuild path - equery which cdrtools
• rebuild dependencies - revdep-rebuild -p
• gentoo linux security advisory check - glsa-check

Configuring Mail

• man ssmtp
• /etc/ssmtp/ssmtp.conf - set mailhub
• /etc/ssmtp/revaliases - set up aliases