Notes to install Gentoo Linux

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Intel integrated video card

Enable KMS (Kernel Mode Setting) for Intel (Device Drivers => Graphic => Intel) is critical: 

sudo genkernel --menuconfig all

Grub2

Let grub2 create the cfg for me automatically, 

grub2-mkconfig -o /boot/grub/grub.cfg

Network

Ethernet

#net.lo should exist! if NOT, `emerge --ask --oneshot net-misc/netifrc`
# @see https://wiki.gentoo.org/wiki/Netifrc
ln -s /etc/init.d/net.lo /etc/init.d/net.eth0
echo 'config_eth0="dhcp"' >> /etc/conf.d/net
/etc/init.d/net.eth0 start
rc-update add net.eth0 default

Wireless (wifi)

#net.lo should exist! if NOT, `emerge --ask --oneshot net-misc/netifrc`
# @see https://wiki.gentoo.org/wiki/Netifrc
# I need setup /etc/wpa_supplicant/wpa_supplicant.conf at first
ln -s /etc/init.d/net.lo /etc/init.d/net.ra0
echo 'config_ra0="dhcp"' >> /etc/conf.d/net
/etc/init.d/net.ra0 start
rc-update add net.ra0 default

Content of /etc/wpa_supplicant/wpa_supplicant.conf: 

#let wpa_supplicant take care of scanning and AP selection
ap_scan=1

#simple case: WPA-PSK, PPSK as an simple passphrase
network={
  ssid="myssid"
  psk="mypassword"
  # the higher priority the sooner we matched
  priority=5
}

For kernel 3.17.*+, by default wpa_supplicant use nl80211 driver instead of wext.

We need for it use wext instead. To double check wext does work, 

sudo wpa_supplicant -dd -B -i ra0 -Dwext -c /etc/wpa_supplicant/wpa_supplicant.conf

But OpenRC script does not have -Dwext, 

# as root
cd /lib;grep -rsn --exclude-dir=/home "Starting wpa_supplicant on" *
# netifrc/net/wpa_supplicant.sh:85: ebegin "Starting wpa_supplicant on ${IF
# VAR}"

Modify /lib/netifrc/net/wpa_supplicant.sh to for it use wext, 

opts="-Dwext ${opts} -c ${cfgfile}"

Clock Synchronization

htpdate is great because it only use HTTP protocol, don't forget add server in its config file.

Sound

Nothing to tell. There may be some issue, but I forgot.

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