Startseite » Archive für January 2019

Month: January 2019

♥ install Arch linux ♥

I want to make a guideline for installation of Arch linux.

unicorn arch linux install

Boot Arch linux from usb-stick how to create one you will find out,
I’m shure, but at least:
dd bs=1M if=Downloads/archlinux-2014.12.01-dual.iso of=/dev/sdb

erase & create partition table, connect to internet

Easy to use is the commandline patition tool cfdisk.

 

# fdisk -l
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 393215 391168 191M 83 Linux
/dev/sda2 393216 117210239 116817024 55,7G 83 Linux

If you have a german keyboard type:
# loadkeys de-latin1-nodeadkeys.map.gz
Establish WiFi-connection if you don’t have wired access to theInternet:
# wifi-menu
or
# ifconfig
and
dhcpcd your ethdev
check
# ping ccc.de
nice!

encrypt everything except boot

XTS splitts the encryption, to AES 256 bit keylength, use 1024 for a 512bit key.
modprobe dm-crypt (to be sure)
# cryptsetup -c aes-xts-plain -y -s 512 luksFormat /dev/sda2 (follow YES & pass)
# cryptsetup luksOpen /dev/sda2 archluks

create lvm partitions

# pvcreate /dev/mapper/archluks
# vgcreate archvg /dev/mapper/archluks
# lvcreate -L 8GB -n swap archvg (not for ssd install)
# lvcreate -l 100%FREE -n root archvg

Now we need a filesystem on them:


# mkfs.ext4 -L boot /dev/sda1
# mkfs.ext4 -L root /dev/mapper/archvg-root
# mkswap -L swap /dev/mapper/archvg-swap (not for ssd install)

mount and install

Mount the volumes into the running livesystem:

# mount /dev/mapper/archvg-root /mnt
# mkdir /mnt/boot
# mount /dev/sda1 /mnt/boot

Install the base and base-devel packets to /mnt (Internet-connection required):

# pacstrap /mnt base base-devel joe openssh net-tools wpa_supplicant dialog
# pacstrap /mnt grub-bios

Generate fstab:
# swapon -L swap
# genfstab -p -U /mnt > /mnt/etc/fstab

my ssd fstab:

cat fstab
# /dev/mapper/archvg-root
 UUID=5fd17e1d-6346-43bc-900d-6e6f56b9d40c / ext4
 defaults,discard,noatime,nodiratime,lazytime,commit=600 0 1
# /dev/sda1 UUID=a9550250-be66-4544-8d42-8b97fedcd7f7 /boot ext4 defaults,discard,noatime,nodiratime,lazytime,commit=600 0 2 ramfs /tmp tmpfs defaults,relatime,nodev,nosuid,mode=1777 0 0 tmpfs /var/tmp tmpfs defaults,relatime,nodev,nosuid,mode=0754,size=5% 0 0 tmpfs /var/log tmpfs defaults,relatime,nodev,nosuid,mode=0754,size=1% 0 0 tmpfs /var/log/httpd tmpfs defaults,relatime,nodev,nosuid,mode=0754,size=1% 0 0

chroot and configure

# arch-chroot /mnt

delete the # in front of your language of choise (e.g. de_DE.UTF-8 UTF-8) in locale.gen and generate the locale:

# joe /etc/locale.gen

remove hash# form your language

de_DE.UTF-8 UTF-8
de_DE ISO-8859-1
de_DE@euro ISO-8859-15

then:
# locale-gen
# echo LANG=de_DE.UTF-8 > /etc/locale.conf
# echo LC_COLLATE=C >> /etc/locale.conf
# echo LC_TIME=de_DE.UTF-8 >> /etc/locale.conf
# export LANG=de_DE.UTF-8

Generate /etc/vconsole.conf with the following 3 lines to bind your keys correctly:

# echo KEYMAP=de-latin1 >> /etc/vconsole.conf
# echo FONT=Lat2-Terminus16 >> /etc/vconsole.conf
# echo FONT_MAP=8859-1_to_uni >> /etc/vconsole.conf

Create a symbolic link /etc/localtime to your zone file /usr/share/zoneinfo//:
# ln -s /usr/share/zoneinfo/Europe/Berlin /etc/localtime

Define yout hostename:
# echo myhostname > /etc/hostname

 

Edit /etc/mkinitcpio.conf:

Put „keyboard“, “keymap”, “encrypt” and “lvm2″ before “filesystems” in the HOOKS array
# mkinitcpio -p linux

Now install GRUB (part 2), on a device not a partition or a volume:
# grub-install /dev/sda

In /etc/default/grub edit the line GRUB_CMDLINE_LINUX=”” to GRUB_CMDLINE_LINUX=”cryptdevice=/dev/sda2:archvg” then run:

My SSD config:GRUB_CMDLINE_LINUX=“cryptdevice=/dev/sda2:archvg:allow-discards elevator=noop vga=791 splash“

# grub-mkconfig -o /boot/grub/grub.cfg
# systemctl enable dhcpcd.service

set your root password:
# passwd

add youruser

# useradd -m -G wheel -s /bin/bash youruser
# passwd youruser

uncomment in /etc/sudoers
#  %wheel ALL=(ALL) ALL

[deprecated]
type ‚pacman -Suy cronie‘ here my fstrim cronjob for ssd

[root@munin etc]# cat /etc/cron.hourly/trimfs.sh 
#!/bin/sh
/usr/bin/fstrim -v / 1>> /var/log/trim.root
/usr/bin/fstrim -v /home 1>> /var/log/trim.home
/usr/bin/fstrim -v /boot 1>> /var/log/trim.boot

 

Exit the chroot:
# exit
Unmount:
# umount /mnt/boot
# umount /mnt

reboot

Live Wifi Visualisation

Here I’ve a live visualisation of wifi networks with tcpdump and awk script to show connections with device addresses, channels and frequencies or dB state in gource.

Live Wifi Visualisation DigitalMirror holographic from carlosnikolaus on Vimeo.

…and more various

carloscomputer: DigitalMirror live wifi visuals by carlos nikolaus from carlosnikolaus on Vimeo.

htop process awk skript

awk