@node Installation @chapter Installation These are the step-by-step instructions for installing Carbs Linux. @menu * Preparing Environment:: Getting ready to chroot * Chroot:: Going inside your new system * System Configuration:: Customizing for your personal use * Kernel:: Compiling your own kernel * Making your system bootable:: Installing init and bootloader * Post-installation:: Acquiring more packages and repositories @end menu @node Preparing Environment @section Preparing Environment To install Carbs Linux, you will need a Live Linux ISO. For that purpose, you can obtain a Gentoo or Void Linux live image. You can follow their instructions to boot and setup your network. You will need the following programs in order to install Carbs Linux: @itemize @item tar @item wget @item xz @item some form of base utilities (coreutils, sbase, busybox, etc.) @end itemize Rest of these instructions will assume that you have set all of these up, and will continue on that point. @subsection Download First, we need to download the rootfs tarball. You can do the following in order to obtain the rootfs. If you are using an i686 machine, replace the @code{x86_64} with @code{i686}. @example $ wget https://dl.carbslinux.org/releases/x86_64/carbs-rootfs.tar.xz @end example We can then check the integrity of the tarball and do a signature verification. Even thought these are optional, they are highly recommended. @subsection Check the integrity of the tarball (Recommended) All of the releases are saved in a single file named @file{sha256sums.txt}, but the latest release is saved on @file{carbs-rootfs.tar.xz.sha256}. You can acquire and verify the tarball. @example $ wget https://dl.carbslinux.org/releases/x86_64/carbs-rootfs.tar.xz.sha256 $ sha256sum -c carbs-rootfs.tar.xz.sha256 @end example @subsection Verify the signature It is highly recommended to verify the signature of the tarball. You will need GPG for this. @example $ wget https://dl.carbslinux.org/releases/carbs-rootfs.tar.xz.sig $ gpg --recv-keys FF484BDFEFCEF8FF $ gpg --verify carbs-rootfs.tar.xz.sig @end example @subsection Extracting the tarball You will need to extract the tarball to your desired location. For partitioning, you can follow @url{https://wiki.archlinux.org/index.php/Partitioning, this guide}. This will assume that you will be mounting your root partition to @file{/mnt}. @example $ mount /dev/sdx1 /mnt $ tar xf carbs-rootfs.tar.xz -C /mnt @end example @subsection Obtain the chroot helper You can obtain the @command{cpt-chroot} script in order to do a simple chroot into your new root filesystem. @example $ wget https://dl.carbslinux.org/distfiles/cpt-chroot $ chmod a+x cpt-chroot @end example @node Chroot @section Chroot Chroot into Carbs Linux! @example $ ./cpt-chroot /mnt @end example @subsection Setting up repositories Newest tarballs do not come with repositories, so you will need to manually obtain them, and set your @env{CPT_PATH} environment variable. Carbs Linux repositories can either be obtained by @command{git} or @command{rsync}. While rsync repositories are overall faster and smaller, git offers the whole history of the repository and a means to manipulate your repository as you like it. If you want to obtain the git repository, you will need to install @command{git} itself. The following guide will assume that you put the repositories into @file{~/repos/} directory, but you can put the repositories into any directory you want. So go ahead and create that directory. @command{mkdir -p $HOME/repos}. @subsubsection Obtaining from rsync Carbs Linux rsync repositories live in @url{rsync://carbslinux.org/repo}. In order to obtain it, run the following: @example $ rsync -avc rsync://carbslinux.org/repo $HOME/repos/carbs @end example @subsubsection Obtaining from git Carbs Linux git repositories can be found both from the main server and GitHub (mirror). Here are both their repository links. You can clone any of them. @itemize @item @url{git://git.carbslinux.org/repository} @item @url{https://github.com/carbslinux/repository} @end itemize @example $ git clone git://git.carbslinux.org/repository $HOME/repos/carbs @end example @subsubsection Making the package manager use the repositories In your shell's configuration file, or in your @file{~/.profile} file, add the following lines: @example export CPT_PATH='' CPT_PATH=$CPT_PATH:$HOME/repos/carbs/core CPT_PATH=$CPT_PATH:$HOME/repos/carbs/extra CPT_PATH=$CPT_PATH:$HOME/repos/carbs/xorg CPT_PATH=$CPT_PATH:$HOME/repos/carbs/community export CPT_PATH @end example @subsection Updating packages It is good practice to make sure your system is up to date, especially before building new packages. If there is an update for the package manager you will need to update twice. @example $ cpt update @end example @subsection Installing packages Since you are operating on a really small base, you might need to build and install new programs to extend the functionality of your system. In order to build and install packages new packages in Carbs, you need to execute the following. ``Package'' is not actually a package and is given as an example. @example $ cpt build package $ cpt install package @end example @subsection Essential Software Here is a list of software that you might want to have on your system. BOOTLOADERS @itemize @item efibootmgr @item grub @end itemize FILESYSTEMS @itemize @item e2fsprogs @item dosfstools @item ntfs-3g @end itemize NETWORKING @itemize @item dhcpcd @item wpa_supplicant @end itemize TEXT EDITORS @itemize @item nano @item vim @item neatvi @item nvi @item emacs @item emacs-nox (terminal-only version of emacs) @end itemize USER SHELLS @itemize @item bash @item zsh @item dash @item oksh @item rc @end itemize POSIX BASE UTILITIES @itemize @item busybox @item sbase @item coreutils @end itemize DOCUMENTATION @itemize @item carbs-docs @item man-pages @item man-pages-posix @end itemize @subsection Obtaining the documentation (optional) All the documentation for Carbs Linux can be found on a single info manual to be viewed offline. You can obtain texinfo or the info (standalone) package in order to view the documentation. @example Install the documentation. $ cpt b carbs-docs && cpt i carbs-docs Install either texinfo or the info package. We will be installing standalone info as it doesn't need perl. $ cpt b info && cpt i info You can then run info and navigate through the documentation. $ info carbslinux @end example @node System Configuration @section System Configuration After you have finished installing some extra packages, you can configure your system to your liking. @subsection Configuring hostname (recommended) You might want to add a hostname, especially in a networked environment. Your hostname will default to 'carbslinux' unless you set this. @example $ echo your-hostname > /etc/hostname @end example @subsection Setting up hosts file (optional) You can edit your /etc/hosts file, which is the static lookup table for host names. By default, there are two entries for localhost which are OKAY. You can replace the 'localhost' part of these entries to your hostname. @example 127.0.0.1 localhost.localdomain localhost ::1 localhost.localdomain localhost ip6-localhost @end example @node Kernel @section Kernel Kernel isn't managed under the main repositories, even though you could package one for your personal use. Here is an @url{https://github.com/cemkeylan/kiss-repository/tree/master/personal/linux, example kernel package}, which you will need to reconfigure for your specific setup if you want to make use of it. @subsection Obtaining the kernel sources You can visit the https://kernel.org website to choose a kernel that you want to install. Though only the latest stable and longterm (LTS) versions are supported. @example Download the kernel and extract it $ wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.7.6.tar.xz $ tar xf linux-5.7.6.tar.xz Change directory into the kernel sources $ cd linux-5.7.6 @end example @subsection Installing dependencies In order to compile the kernel you will need to install some dependencies. You will need @command{libelf} to compile the kernel. If you want to configure using the menu interface you will also need @command{ncurses}. @example The package manager asks to install if you are building more than one package, so no need to run 'cpt i ...' $ cpt b libelf ncurses @end example In the vanilla kernel sources, you need perl to compile the kernel, but it can be easily patched out. You will need to apply the following patch. Patch was written by @url{https://github.com/E5ten, E5ten}. You will need to obtain and apply the patch in the kernel source directory. @example $ wget https://dl.carbslinux.org/distfiles/kernel-no-perl.patch $ patch -p1 < kernel-no-perl.patch @end example @subsection Compiling the kernel Next step is configuring and building the kernel. You can check Gentoo's @url{https://wiki.gentoo.org/wiki/Kernel/Configuration, kernel configuration guide} to learn more about the matter. Overall, Gentoo Wiki is a good place to learn about configuration according to your hardware. The following will assume a monolithic kernel. @example $ make menuconfig $ make $ install -Dm755 $(make -s image_name) /boot/vmlinuz-linux @end example @node Making your system bootable @section Making your system bootable In order to be able to boot your fresh system, wou will need an init-daemon, init-scripts and a bootloader. The init daemon is already provided by busybox, but you can optionally change it. @subsection Installing a bootloader In the main repository, there is efibootmgr and grub to serve as bootloaders. efibootmgr can be used as a standalone bootloader, or can be used to install grub in a UEFI environment. efibootmgr is needed unless you are using a device without UEFI support (or you really want to use BIOS for a reason). GRUB BIOS installation @example $ cpt b grub && cpt i grub $ grub-install --target=i386-pc /dev/sdX $ grub-mkconfig -o /boot/grub/grub.cfg @end example GRUB UEFI installation @example $ cpt b efibootmgr && cpt i efibootmgr $ cpt b grub && cpt i grub $ grub-install --target=x86_64-efi \ --efi-directory=esp \ --bootloader-id=CarbsLinux $ grub-mkconfig -o /boot/grub/grub.cfg @end example @subsection Installing init scripts Only thing left to do is installing the init-scripts, and now you are almost ready to boot your system! @example $ cpt b carbs-init && cpt i carbs-init @end example @subsection Generating fstab You can now manually edit your fstab entry, or you can use the genfstab tool. If you want to use the tool, exit the chroot and run the following: @example $ wget https://github.com/cemkeylan/genfstab/raw/master/genfstab $ chmod +x genfstab $ ./genfstab -U /mnt >> /mnt/etc/fstab @end example @node Post-installation @section Post-installation The base installation is now complete, you can now fine tune your system according to your needs. Rest of these instructions are completely optional. @subsection Acquiring kiss repositories While not 100% compatible with cpt, you can use kiss repositories in your system the same way you are using the distribution repositories. Here is an example for the KISS Linux Community repository. @example $ git clone https://github.com/kisslinux/community $HOME/repos/kiss-community $ export CPT_PATH=$CPT_PATH:$HOME/repos/kiss-community/community @end example NOTE: There are lots of packages on the KISS community repository that are also on Carbs Linux main repository. I would advise giving lower priority to the KISS community repository as it may affect other packages that you might install.