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Joined: 04 Aug 2016
Posts: 29

PostPosted: Wed Sep 27, 2017 7:43 am    Post subject: migrate gentoo to another comp Reply with quote

I have gentoo installed on laptop.

I'd like to install gentoo on virtualbox for tests, but I want to have the same emerged software like I have on my laptop.
Is it possible do it automatically ?


what is the faster way to install gentoo on virtualbox ?
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Joined: 08 Mar 2003
Posts: 16269
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PostPosted: Wed Sep 27, 2017 7:55 am    Post subject: Re: migrate gentoo to another comp Reply with quote

ttre wrote:
what is the faster way to install gentoo on virtualbox ?
Questions are guaranteed in life; Answers aren't.
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Joined: 23 Dec 2013
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Location: Brisbane, Australia

PostPosted: Wed Sep 27, 2017 2:52 pm    Post subject: Reply with quote

My "Copy & Paste" installation script for installing Gentoo and Xfce on a VirtualBox VM.
The Gentoo host must have app-emulation/virtualbox-5.1.26, app-emulation/virtualbox-additions-5.1.26, app-emulation/virtualbox-extpack-oracle-5.1.26, app-emulation/virtualbox-modules-5.1.26 installed and working.

# These instructions are for installing Gentoo on Oracle VirtualBox with
# Oracle VirtualBox Extentions installed on the host PC and are based on
# the Gentoo Handbook.
# I allocate 1GB during intallation and change to 512KB after competing the installation.
# I can still work with 255 KB but slow.

# My local setup is a LAN with several Linux and Win$ boxes with fixed IP addresses.
# My local domain name: "itw.lan"
# My Gentoo VM FQDN: "gentoo.itw.lan"
# IP address:
# Nameserver-1: (I have my own name server for the LAN.)
# Nameserver-2: (my Router has a very basic build in Name Server.)
# Route:
# Locale Australia/Brisbane
# Configure your host clock to UTC time.

# Change these at the approbriate places in below text to match yours.

# The text without "#" in front are commands to be entered or copied into
# the terminal followed by hitting the Enter Key.

# Preparation:
# Download Gentoo Install CD from:

# Alternetuvely download and use Rescue CD as installation CD.

# Configure a Gentoo x86_64 virtual maschine to boot with Gentoo CD.iso as CD Drive,
# a virtual 30GB dard drive and Network Adapter as "Bridged Adapter".

# Boot your new virtual maschine from the Gentoo install CD.

## type on Gentoo Installer Screen


# Write down the IP address and name of your ethernet card like "eth0", "enp0s3"
# or whatever is your's.

net-setup eth0  #For manual setup if your Router does not have a DHCP server.

# Create a password for ssh access.

# Start sshd and ping
/etc/init.d/sshd start
ping -c 3

# This completes configuration of the installation system for ssh access from a second PC.

# --------------------------------------------

# Open a terminal on your second linux PC or Linux Host PC and log by ssh into
# your Gentoo VM. The Host PC Hardware Clock (BIOS) must be set to UTC. If you use
# Windows as Host OS, configure Windows that Windows does not reset the Hardware Clock
# during startup.
ssh root@gentoo.itw.lan

# Manally, step by step partition your Hard drive with these keybord commands:
# If you make a mistake, exit fdisk by 'q' and start again.

fdisk /dev/sda





# ----------------------------------------------
# Now proceed by copying below texts to your terminal followed by Enter.
# You can copy line by line, section by section or several saections at a time
# or all sections from here until
# ----------------------------------------
# End of installation
# ----------------------------------------

# Create the File System:
mkfs.ext4 /dev/sda1 -L VB_BOOT
mkfs.ext4 /dev/sda6 -L VB_ROOT
mkfs.ext4 /dev/sda7 -L VB_HOME
mkswap /dev/sda5 -L VB_SWAP
swapon -L VB_SWAP

# Mount the Filesystem:
mount -L VB_ROOT /mnt/gentoo
mkdir /mnt/gentoo/boot
mount -L VB_BOOT /mnt/gentoo/boot
mkdir /mnt/gentoo/home
mount -L VB_HOME /mnt/gentoo/home
cd /mnt/gentoo

# Check the date. Make sure date and time are UTC.

# Get Gentoo files from the internet
# links
# Select and download stage3....tar.bz2
# using Links is slow. Download from your local mirror.

ls -l

tar xvjpf stage3-*.tar.bz2

# Change Root
mount -t proc none /mnt/gentoo/proc
mount --rbind /sys /mnt/gentoo/sys
mount --rbind /dev /mnt/gentoo/dev
chroot /mnt/gentoo /bin/bash
source /etc/profile
export PS1="gentoo.itw.lan $PS1"

# Copy DNS information
# Replace "itw.lan" with your domain name.
echo "domain itw.lan" > /etc/resolv.conf

# Change nameserver IP's to yours.
echo "nameserver" >> /etc/resolv.conf
echo "nameserver" >> /etc/resolv.conf

# Configure compile options in make.conf:
echo "CFLAGS=\"-O2 -march=native -pipe\"" > /etc/portage/make.conf
echo "CXXFLAGS=\"\${CFLAGS}\"" >> /etc/portage/make.conf

# Change "-j2" to the number of your processor cores plus 1.
echo "MAKEOPTS=\"-j2\"" >> /etc/portage/make.conf

echo "FEATURES=\"-preserve-libs\"" >> /etc/portage/make.conf
echo "CHOST=\"x86_64-pc-linux-gnu\"" >> /etc/portage/make.conf
echo "ACCEPT_KEYWORDS=\"amd64\"" >> /etc/portage/make.conf
echo "ACCEPT_LICENSE=\"*\"" >> /etc/portage/make.conf
echo "LINGUAS=\"en\"" >> /etc/portage/make.conf
echo "INPUT_DEVISES=\"evdev virtualbox\"" >> /etc/portage/make.conf
echo "VIDEO_CARDS=\"vboxvideo\"" >> /etc/portage/make.conf
echo "USE=\"-bindist -kde -gnome -qt gtk\"" >> /etc/portage/make.conf
echo "PORTDIR=\"/usr/portage\"" >> /etc/portage/make.conf
echo "DISTDIR=\"\${PORTDIR}/distfiles\"" >> /etc/portage/make.conf
echo "PKGDIR=\"\${PORTDIR}/packages\"" >> /etc/portage/make.conf
echo "XFCE_PLUGINS=\"brightness clock trash\"" >> /etc/portage/make.conf

# change "\" to you Gentoo mirror
echo "GENTOO_MIRRORS=\"\"" >> /etc/portage/make.conf

# Create package.* files
mkdir /etc/portage/package.keywords
mkdir /etc/portage/package.unmask
mkdir /etc/portage/package.mask
mkdir /etc/portage/package.use
mkdir /etc/portage/repos.conf

echo "### package.keywords ###" > /etc/portage/package.keywords/keywords
echo "app-portage/install-mask ~amd64" >> /etc/portage/package.keywords/keywords
echo "app-portage/diffmask ~amd64" >> /etc/portage/package.keywords/keywords
echo "x11-drivers/xf86-video-virtualbox ~amd64" > /etc/portage/package.keywords/x11
echo "xfce-extra/xfce4-weather-plugin ~amd64" >> /etc/portage/package.keywords/xfce
echo "=xfce-extra/xfce4-alsa-plugin-0.1.1 ~amd64" >> /etc/portage/package.keywords/xfce
echo "x11-drivers/xf86-video-virtualbox ~amd64" >> /etc/portage/package.keywords/xfce

echo "### package.mask ###" > /etc/portage/package.mask/mask
echo "sys-apps/systemd" >> /etc/portage/package.mask/mask
echo "www-client/links" > /etc/portage/package.mask/mc
echo ">app-misc/mc-4.8.15" > /etc/portage/package.mask/mc
echo "xfce4-terminal" > /etc/portage/package.mask/xfce

echo "### package.unmask ###" > /etc/portage/package.unmask/unmask

echo "### package.use ###" > /etc/portage/package.use/use
echo "dev-util/cmake -qt4" >> /etc/portage/package.use/use
echo "app-text/poppler -qt4" >> /etc/portage/package.use/use
echo "gnome-base/gvfs -http" >> /etc/portage/package.use/use
echo "sys-process/cronie -anacron" >> /etc/portage/package.use/use
echo ""
echo "x11-base/xorg-server udev" >> /etc/portage/package.use/use
# echo "net-print/hplip scanner doc hpcups hpijs" >> /etc/portage/package.use/use
echo "xfce-base/thunar gvfs xfce_plugins_trash" >> /etc/portage/package.use/use

# Create repos.conf
echo "[DEFAULT]" > /etc/portage/repos.conf/gentoo.conf
echo "" >> /etc/portage/repos.conf/gentoo.conf
echo "main-repo = gentoo" >> /etc/portage/repos.conf/gentoo.conf
echo "" >> /etc/portage/repos.conf/gentoo.conf
echo "[gentoo]" >> /etc/portage/repos.conf/gentoo.conf
echo "location = /usr/portage" >> /etc/portage/repos.conf/gentoo.conf
echo "sync-type = rsync" >> /etc/portage/repos.conf/gentoo.conf
echo "sync-uri = rsync://" >> /etc/portage/repos.conf/gentoo.conf
echo "auto-sync = yes" >> /etc/portage/repos.conf/gentoo.conf

# Sync Portagetree
emerge --sync

eselect news read

emerge --oneshot portage
source /etc/profile
export PS1="gentoo.itw.lan $PS1"

emerge app-portage/cpuinfo2cpuflags
cpuinfo2cpuflags-x86 >> /etc/portage/make.conf

# Select Timezone. (change to yours)
ls /usr/share/zoneinfo
echo "Australia/Brisbane" > /etc/timezone
emerge --config sys-libs/timezone-data

# Specify your locale. (change to yours)
echo "en_AU ISO-8859-1" >> /etc/locale.gen
echo "en_AU.UTF-8 UTF-8" >> /etc/locale.gen
echo "LANG=\"en_AU.UTF-8\"" > /etc/env.d/02locale
echo "LC_COLLATE=\"C\"" >> /etc/env.d/02locale
env-update && source /etc/profile

# Select Profile. We list and use Desktop (3)
eselect profile list

# for Xfce Desktop
eselect profile set 3

# Install Kernel Sources
emerge gentoo-sources
ls -l /usr/src/linux

# Use General Kernel and modify genkernel configuration.
emerge genkernel
echo "MAKEOPTS=\"-j2\"" >> /etc/genkernel.conf
echo "DISKLABEL=\"yes\"" >> /etc/genkernel.conf
#echo "CLEAN=\"no\"" >> /etc/genkernel.conf
#echo "MRPROPER=\"no\"" >> /etc/genkernel.conf
genkernel all

# Verify Kernel installation
ls /boot/kernel* /boot/initramfs*

# Emerge grub-static.
emerge grub-static

# Create /boot/grub/grub.conf
echo "default 0" > /boot/grub/grub.conf
echo "timeout 10" >> /boot/grub/grub.conf
echo "" >> /boot/grub/grub.conf

# Change "4.12.12" to your kernel version
echo "title Gentoo Linux 4.12.12-gentoo" >> /boot/grub/grub.conf
echo "root (hd0,0)" >> /boot/grub/grub.conf

# Change the kernel and initramfs filenames to your full name and versions
echo "kernel /boot/kernel-genkernel-x86_64-4.12.12-gentoo net.ifnames=0 root=/dev/ram0 real_root=LABEL=VB_ROOT" >> /boot/grub/grub.conf
echo "initrd /boot/initramfs-genkernel-x86_64-4.12.12-gentoo" >> /boot/grub/grub.conf
echo "" >> /boot/grub/grub.conf

# Create /etc/fstab
# nano -w /etc/fstab
echo "# <fs>          <mountpoint>    <type>  <opts>          <dump/pass>" > /etc/fstab
echo "LABEL=VB_BOOT   /boot           ext4    noatime         1 2" >> /etc/fstab
echo "LABEL=VB_ROOT   /               ext4    noatime         0 1" >> /etc/fstab
echo "LABEL=VB_HOME   /home           ext4    noatime         0 2" >> /etc/fstab
echo "LABEL=VB_SWAP   none            swap    sw              0 0" >> /etc/fstab
echo "/dev/cdrom      /mnt/cdrom      auto    noauto,ro       0 0" >> /etc/fstab
echo "# /dev/fd0        /mnt/floppy     auto    noauto          0 0" >> /etc/fstab

cd /etc/conf.d
# Change to your fixed IP address previously written down
echo 'config_eth0=" netmask brd"' > net
echo 'routes_eth0="default via"' >> net

# Adding net.eth0 to the default runlevel
cd /etc/init.d
ln -s net.lo net.eth0
rc-update add net.eth0 default

# Filling in the networking information
cd /etc
echo "     gentoo.itw.lan gentoo  localhost" > /etc/hosts

# Change to your fixed IP address previously written down
echo "  gentoo.itw.lan gentoo" >> /etc/hosts

# Configure networking
cd /etc/conf.d
echo 'hostname="gentoo"' > hostname
hostname gentoo
hostname -f

# Install a syslogger, a cron daemon, mc and sshd
emerge app-admin/syslog-ng
rc-update add syslog-ng default
emerge sys-process/cronie
rc-update add cronie default
rc-update add sshd default
env-update && source /etc/profile

emerge sys-apps/mlocate
emerge app-portage/gentoolkit
emerge app-admin/eclean-kernel
emerge app-portage/diffmask
emerge app-portage/flaggie
emerge app-portage/install-mask
emerge app-portage/portpeek
emerge app-portage/smart-live-rebuild
emerge app-misc/mc
eselect fontconfig enable 22

# Adding sshd to the default runlevel
rc-update add sshd default

# Option:
echo "PermitRootLogin yes" >> /etc/ssh/sshd_config

# Add your username. Change "user" to your username.
useradd -m -G users,wheel,audio,cdrom,portage,usb -s /bin/bash (username)
passwd (username)

# Setting the root password

# Install grub-static (grub leagacy)
grub --no-floppy
# grub> root (hd0,0)
# grub> setup (hd0)
# grub> quit

Change directory to /.
cd /

# Install X
emerge xorg-server
emerge x11-drivers/xf86-video-virtualbox
emerge app-emulation/virtualbox-guest-additions
rc-update add xdm default
env-update && source /etc/profile
echo XSESSION="Xfce4" > /etc/env.d/90xsession

# Install Xfce
emerge xfce-base/xfce4-meta
emerge x11-terms/xfce4-terminal
emerge app-editor/leafpad
emerge app-portage/porthole
env-update && source /etc/profile
/etc/init.d/dbus start
rc-update add dbus default
rc-update add xdm default

emerge x11-misc/slim

# Editing /etc/conf.d/xdm
# nano -wc /etc/conf.d/xdm
echo "CHECKVT=7" > /etc/conf.d/xdm
echo "DISPLAYMANAGER=\"slim\"" >> /etc/conf.d/xdm
rc-update add xdm default

eselect fontconfig enable 1 2 4 5 6 7 8 9 10 11 12 13 14 24 25 26

# End of Xfce installation
# ------------------------------------

# Poweroff
umount -l /mnt/gentoo/dev{/shm,/pts,}
umount -l /mnt/gentoo{/proc,/boot,/home,/sys,}

# ----------------------------------------
# End of installation
# ----------------------------------------

# Remove the Gentoo CD

# This completes the installation of the Gentoo System.
# Boot your Gentoo VM, log in with your username, open Xfce-terminal, ping
# to verify that it works.
# Then login as root from your Gentoo VM terminal.

# if all is well, you should now see the Slim login screen
# Login as root
# emerge your favorite Xfce and other applications such as:
# porthole
# leafpad
# midori or firefox
# claws mail or thunderbird
# avoid Gnome and KDE applications. They pull in tons of dependencies
# Happy computing!

Total keyboard time is about 15 minutes.
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PostPosted: Fri Sep 29, 2017 10:36 am    Post subject: Reply with quote

In case you got CFLAGS incompatibility in the new host, you need to first build all the packages with generic CFLAGS (-mtune=native -O3 etc...).
Buy from companies supporting opensource -- IBM, Dell, HP, Hitachi, Google etc...
Disfavor companies supporting only Win -- Logitech, Epson, Pioneer, Kingston, WD, Yahoo, MSI, XFX, Huawei
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