gentoo_instalation.txt

Configuring the network
=====================================================
(...)

Preparing the disks
=====================================================

livecd ~ # parted -a optimal /dev/sda
--(parted) unit mib
(parted) mklabel gpt
(parted) mkpart primary 1 3
(parted) name 1 grub
(parted) set 1 bios_grub on
(parted) mkpart primary 3 -1
(parted) name 2 lvmpv
(parted) set 2 lvm on
livecd ~ # pvcreate /dev/sda2
livecd ~ # vgcreate vg /dev/sda2
livecd ~ # lvcreate -L 8G -n swap vg
livecd ~ # lvcreate -L 120G -n home vg
livecd ~ # lvcreate -l 100%VG -n rootfs vg
livecd ~ # mkfs.ext4 /dev/vg/home
livecd ~ # mkfs.ext4 /dev/vg/rootfs
--livecd ~ # mkswap /dev/vg/swap
--livecd ~ # swapon /dev/vg/swap
livecd ~ # cryptsetup -s 512 luksFormat /dev/vg/swap
livecd ~ # cryptsetup luksOpen /dev/vg/swap swap
livecd ~ # mkswap /dev/mapper/swap
livecd ~ # swapon /dev/mapper/swap
livecd ~ # mount /dev/vg/rootfs /mnt/gentoo

Installing Stage3
=====================================================
livecd ~ # cd /mnt/gentoo
livecd /mnt/gentoo # wget http://distfiles.gentoo.org/releases/amd64/autobuilds/20180123/systemd/stage3-amd64-systemd-20180123.tar.bz2
livecd /mnt/gentoo # sha512sum stage3-amd64-systemd-20180123.tar.bz2
95e4d6d6f65c6ecc4e5052c70c99c13793a81440d0d236faa83e6e929e1759bac153b90551909f7e7a49a9725b82b524c8363bacb2f46d4ad0051198ea033c4b
livecd /mnt/gentoo # tar xpf stage3-*.tar.{bz2,xz} --xattrs-include='*.*' --numeric-owner

/mnt/gentoo/etc/portage/make.conf:
CFLAGS="-O2 -pipe -march=native"
MAKEOPTS="-j2"

Installing base system
=====================================================
livecd /mnt/gentoo # mirrorselect -i -o >> /mnt/gentoo/etc/portage/make.conf
livecd /mnt/gentoo # mkdir /mnt/gentoo/etc/portage/repos.conf
livecd /mnt/gentoo # cp /mnt/gentoo/usr/share/portage/config/repos.conf /mnt/gentoo/etc/portage/repos.conf/gentoo.conf
livecd /mnt/gentoo # cp --dereference /etc/resolv.conf /mnt/gentoo/etc

/mnt/gentoo/chroot-mounts.sh:
mount --types proc /proc /mnt/gentoo/proc
mount --rbind /sys /mnt/gentoo/sys
mount --make-rslave /mnt/gentoo/sys
mount --rbind /dev /mnt/gentoo/dev
mount --make-rslave /mnt/gentoo/dev

livecd /mnt/gentoo # chmod +x chroot-mounts.sh
livecd /mnt/gentoo # ./chroot-mounts.sh
livecd /mnt/gentoo # chroot /mnt/gentoo /bin/bash
livecd / # . /etc/profile
livecd / # export PS1="(chroot) $PS1"
(chroot) livecd / # mount /dev/vg/home /home
(chroot) livecd / # emerge-webrsync
(chroot) livecd / # emerge --sync
(chroot) livecd / # eselect news read
(chroot) livecd / # eselect profile list
(chroot) livecd / # eselect profile set 18

/etc/portage/make.conf:
USE="bash-completion bindist git gnome ios mmx sse sse2 systemd vim-syntax wayland wifi"

(chroot) livecd / # emerge --ask --update --deep --newuse @world

Configuring the kernel
=====================================================
(chroot) livecd / # emerge --ask sys/kernel/gentoo-sources
(chroot) livecd / # cd /usr/src/linux
(chroot) livecd /usr/src/linux # make menuconfig

[*] Device Drivers -> Generic Driver Options -> Maintain a devtmpfs filesystem to mount at /dev
[ ] Device Drivers -> Generic Driver Options -> Automount devtmpfs at /dev, after the kernel mounted the rootfs
<*> Device Drivers -> SCSI device support -> SCSI disk support
<*> File systems -> Second extended fs support
[*] File systems -> Ext2 extended attributes
<*> File systems -> The Extended 3 (ext3) filesystem
<*> File systems -> The Extended 4 (ext4) filesystem
<*> File systems -> DOS/FAT/NT Filesystems -> MSDOS fs support
<*> File systems -> DOS/FAT/NT Filesystems -> VFAT (Windows-95) fs support
[*] Processor type and features -> Symmetric multi-processing support
-*- Device Drivers -> HID support -> HID bus support
[*] Device Drivers -> HID support -> Battery level reporting for HID devices
<*> Device Drivers -> HID support -> Generic HID driver
<*> Device Drivers -> HID support -> USB HID transport layer
[*] Device Drivers -> USB support
<*> Device Drivers -> USB support -> xHCI HCD (USB 3.0) support
<*> Device Drivers -> USB support -> EHCI HCD (USB 2.0) support
<*> Device Drivers -> USB support -> OHCI HCD (USB 1.1) support
(Core 2/newer Xeon) Processor type and features -> Processor family
[*] Executable file formats / Emulations -> IA32 Emulation
[*] Enable the block layer -> Partition types -> Advanced patition selection
[*] Enable the block layer -> Partition types -> EFI GUID Partition support
-- [*] Processor type and features -> EFI runtime service support
-- [*] Processor type and features -> EFI stub support
-- [*] Processor type and features -> EFI mixed-mode support
-- [*] Firmware drivers -> EFI (Extensible Firmware Interface) Support -> EFI variable support via sysfs
=== systemd ===
[ ] Gentoo Linux -> Support for init systems, system and service managers -> OpenRC, runit and other script based systems and managers
[*] Gentoo Linux -> Support for init systems, system and service managers -> systemd
[*] General setup -> open by fhandle syscalls
[*] General setup -> Control Group support
[ ] General setup -> Enable deprecated sysfs features to support old userspace tools
[*] General setup -> Configure standard kernel features (expert users)
-*- General setup -> Configure standard kernel features (expert users) -> Enable eventpoll support
-*- General setup -> Configure standard kernel features (expert users) -> Enable signalfd() system call
-*- General setup -> Configure standard kernel features (expert users) -> Enable timerfd() system call
-*- Networking support
-*- Device Drivers -> Generic Driver Options -> Mantain a devtmpfs filesystem to mount at /dev
-*- File systems -> Inotify support for userspace
-*- File systems -> Pseudo filesystems -> /proc file system support
-*- File systems -> Pseudo filesystems -> sysfs file system support
-*- General setup -> Checkpoint/restore support
-*- General setup -> Namespaces support
-*- General setup -> Namespaces support -> Network namespace
-*- Enable the block layer -> Block layer SG support v4
-*- Processor type and features -> Enable seccomp to safely compute untrusted bytecode
-*- Networking support -> Networking options -> The IPv6 protocol
( ) Device Drivers -> Generic Driver Options -> path to uevent helper
[ ] Device Drivers -> Fallback user-helper invocation for firmware loading
-*- Firmware Drivers -> Export DMI identification via sysfs to userspace
-*- File systems -> Kernel automounter version 4 support (also supports v3)
-*- File systems -> Pseudo filesystems -> Tmpfs virtual memory file system support (former shm fs)
-*- File systems -> Pseudo filesystems -> Tmpfs POSIX Acess Control Lists
-*- File systems -> Pseudo filesystems -> Tmpfs extended attributes
=== LVM ===
<*> Device drivers -> Multiple devices driver support (RAID and LVM)-> Device mapper support
<*> Device drivers -> Multiple devices driver support (RAID and LVM)-> Crypt target support
<*> Device drivers -> Multiple devices driver support (RAID and LVM)-> Snapshot target
<*> Device drivers -> Multiple devices driver support (RAID and LVM)-> Mirror target
<*> Device drivers -> Multiple devices driver support (RAID and LVM)-> Multipath target
<*> Device drivers -> Multiple devices driver support (RAID and LVM)-> I/O Path Selector based on the number of in-flight I/Os
<*> Device drivers -> Multiple devices driver support (RAID and LVM)-> I/O Path Selector based on the service time
=== dm-crypt ===
-*- Cryptographic API
<*> Cryptographic API -> XTS support
-*- Cryptographic API -> SHA224 and SHA256 digest algorithm
-*- Cryptographic API -> AES cipher algorithms
<*> Cryptographic API -> AES cipher algorithms (for x86_64)
-*- Cryptographic API -> User-space interface for hash algorithms
<*> Cryptographic API -> User-space interface for symmetric key cipher algorithms
[*] General setup -> Initial RAM filesystem and RAM dist (initramfs/initrd) support

(chroot) livecd /usr/src/linux # make -j2
(chroot) livecd /usr/src/linux # make modules_install
(chroot) livecd /usr/src/linux # make install
(chroot) livecd /usr/src/linux # emerge --ask sys-fs/lvm2
(chroot) livecd /usr/src/linux # emerge --ask sys-fs/cryptsetup
(chroot) livecd /usr/src/linux # emerge --ask sys-kernel/genkernel-next
(chroot) livecd /usr/src/linux # genkernel --udev --lvm --luks --install initramfs
(chroot) livecd /usr/src/linux # emerge --ask sys-kernel/linux-firmware

Configuring the system
=====================================================
/etc/crypttab:
crypt-swap UUID=<UUID in LVM> -

/etc/fstab:
/dev/vg/rootfs			/	ext4	noatime	0 1
/dev/vg/home			/home	ext4	noatime	0 1
UUID="<UUID in dm-crypt>"	none	swap	sw	0 0

(chroot) livecd /usr/src/linux # emerge --ask networkmanager
(chroot) livecd /usr/src/linux # emerge --ask systemd # (check the installation)
(chroot) livecd /usr/src/linux # passwd

Installing tools
=====================================================
(chroot) livecd /usr/src/linux # emerge --ask mlocate
(chroot) livecd /usr/src/linux # emerge --ask e2fsprogs
(chroot) livecd /usr/src/linux # emerge --ask dosfstools

Configuring the bootloader
=====================================================
(chroot) livecd /usr/src/linux # mkdir /etc/portage/package.use

/etc/portage/package.use/grub:
sys-boot/grub:2 device-mapper

(chroot) livecd /usr/src/linux # emerge --ask --verbose sys-boot/grub:2

/etc/default/grub:
GRUB_CMDLINE_LINUX_DEFAULT="dolvm init=/lib/systemd/systemd"

(chroot) livecd /usr/src/linux # grub-install --recheck /dev/sda
(chroot) livecd /usr/src/linux # grub-mkconfig -o /boot/grub/grub.cfg
(chroot) livecd /usr/src/linux # exit
livecd /mnt/gentoo # umount -l /mnt/gentoo/dev
livecd /mnt/gentoo # cd
livecd ~ # umount -R /mnt/gentoo
livecd ~ # reboot

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