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Updating Time Information

Systemd (manual)

timedatectl set-timezone '[Asia/City]'
timedatectl set-time '2025-02-01 10:00:00'

Systemd (auto)

timedatectl set-ntp true && sleep 5 && timedatectl set-ntp false

Disk Operations

Bootloader Configuration

# Edit /etc/default/grub and insert the following values

# enable_rc6, enable_fbc = reduce display power consumption; wifi powersaving (ath9k.ps_enable=1 @atheros cards);

# net.ifnames=0 set network interface to traditional naming style (wlan0 instead of wlp0s20f3)

GRUB_CMDLINE_LINUX="crypt_root=/dev/sda1 real_root=/dev/mapper/root i915.enable_rc6=7 i915.enable_fbc=1 ipv6.disable=1 ath9k.ps_enable=1 net.ifnames=0"
GRUB_PRELOAD_MODULES="lvm part_msdos"
GRUB_ENABLE_CRYPTODISK=y

# --removable flag important if boot partition inside a USB

grub2-install --modules="linux crypto search-fs_uuid luks lvm" --recheck --boot-directory=/boot --removable /dev/sdx
grub2-mkconfig -o /boot/grub/grub.cfg'

# Unmounting Partitions

umount -R /mnt/gentoo