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commit 8145d5d5eeaebf7cefefd45827d0aebc107e3eb2
parent 5a2bbdf09d38d8920781684324b556346308f50d
Author: Leah Woods <>
Date:   Wed, 18 May 2016 03:26:55 +0100

encrypted parabola guide: Remove note about SeaBIOS

We love SeaBIOS now.

docs/src/gnulinux/encrypted_parabola.texi | 2--
1 file changed, 0 insertions(+), 2 deletions(-)

diff --git a/docs/src/gnulinux/encrypted_parabola.texi b/docs/src/gnulinux/encrypted_parabola.texi @@ -43,8 +43,6 @@ This section deals with wiping the storage device on which you plan to install P - make sure to read @uref{,this article}. Edit /etc/fstab later on when chrooted into your install. Also, read the whole article and keep all points in mind, adapting them for this guide. -Wipe the MBR (if you use MBR):@* # @strong{lsblk}@* Your storage is probably /dev/sda, but be very sure to double check this or you WILL lose your data!@* # @strong{dd if=/dev/zero of=/dev/sda bs=446 count=1; sync}@* Never use SeaBIOS! The MBR section can easily be changed with malicious code, which SeaBIOS will blindly execute. This guide is for libreboot with GRUB-as-payload only. - Securely wipe the drive:@* # @strong{dd if=/dev/urandom of=/dev/sda; sync}@* NOTE: If you have an SSD, only do this the first time. If it was already LUKS-encrypted before, use the info below to wipe the LUKS header. Also, check online for your SSD what the recommended erase block size is. For example if it was 2MiB:@* # @strong{dd if=/dev/urandom of=/dev/sda bs=2M; sync} If your drive was already LUKS encrypted (maybe you are re-installing your distro) then it is already 'wiped'. You should just wipe the LUKS header. @uref{,} showed me how to do this. It recommends doing the first 3MiB. Now, that guide is recommending putting zero there. I'm going to use urandom. Do this:@* # @strong{head -c 3145728 /dev/urandom > /dev/sda; sync}@* (Wiping the LUKS header is important, since it has hashed passphrases and so on. It's 'secure', but 'potentially' a risk).