Printer doesn’t print after installing scanner driver

Brother 7060D stuck on “Waiting for printer to become available” after installing brscan4 (the scanner driver). Because the scanner driver adds a udev rule so that the node is owned by the scanner group, which is no longer accessible by lp. Temporary solution is to chown root:lp /dev/usb/002/007/, replace 002/007 with the actual location the use node is created. (Check lsusb) +printer


Pacman fails signature verification

If encounter this while makepkg:

==> Verifying source file signatures with gpg...
linux-4.6.tar ... FAILED (unknown public key 79BE3E4300411886)
patch-4.6.3 ... FAILED (unknown public key 38DBBDC86092693E)

Because makepkg uses gpg and is unaware of the pacman’s keyring. Do this:

# run as root
gpg --list-keys

Receive the keys using pacman-key -r KEY_ID first, and then, add keyring /etc/pacman.d/gnupg/pubring.gpg to the end of ~/.gnupg/gpg.conf.


In case Window upgrade breaks EFI and you get this message:

EFI stub: ERROR: failed to read file.
Trying to load files to higher address.
EFI stub: ERROR: failed to read file.

In this case, systemd-boot needs to be reinstalled.

  1. Boot arch install ISO
  2. Mount the partitions:

    mount /dev/sda9 /mnt mount /dev/sda1 /mnt/boot # the EFI partition

  3. chroot:

    arch-chroot /mnt

  4. Generate initcpio

    mkinitcpio -p linux

  5. Install EFI boot files

    bootctl –path=/boot install

  6. Exit and cleanup

    exit # exit the chroot environment umount -R /mnt reboot

Install ArchLinux on Lenovo Yoga 700

Download archlinux iso

Write bootable disk

Notice /dev/sdb, not /dev/sdb1

sudo dd bs=4M if=archlinux-2016.03.01-dual.iso of=/dev/sdb status=progress && sync

Change BIOS to UEFI priority

Install according to the arch install guide

  • The guide
  • Mount /mnt/boot using the EFI System Partition (esp)

Install boot loader (systemd-boot)


  • Copy kernel and initramfs onto ESP (/boot)
  • bootctl --path=/boot install
  • Configuration
  • Add the archlinux entries
  • Setup efistub

dhcp service not started

systemctl start dpchcd.service

and subsequently

systemctl enable dhcpcd.service

Install graphics drivers

Install bumblebee, mesa, nvidia, xf86-video-intel