====== Enter Installed System From Install Cd ======
1. Boot up with the Gentoo minimal cd.
2. Mount your gentoo partitions...
mount /dev/sda3 /mnt/gentoo
Legacy BIOS:
mount /dev/sda1 /mnt/gentoo/boot
####
mount -t proc none /mnt/gentoo/proc
mount -o bind /dev /mnt/gentoo/dev
mount --rbind /sys /mnt/gentoo/sys
mount --rbind /dev /mnt/gentoo/dev
3. chroot into the install gentoo environment...
cd /mnt/gentoo
chroot /mnt/gentoo /bin/bash
env-update
source /etc/profile
UEFI Systems:
mount /dev/sda1 /efi
====== Temporally Disable IPv6 ======
echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6