minitrd

Overview ¶

Program minitrd is a minimal init program to be used in a Linux initramfs. It loads kernel modules, opens LUKS-encrypted block devices, mounts the root file system and proceeds with booting.

The following kernel cmdline parameters are respected:

• rd.luks=1 to enable looking for LUKS-encrypted block devices
• rd.luks.uuid=<uuid>
• rd.luks.name=<uuid>=<name>
• root=/dev/mapper/<name>
• root=UUID=<uuid>
• rootfstype=<fs>, e.g. rootfstype=ext4
• rd.vconsole.font=<font>

The following files are expected to be included in the initramfs:

• /etc/localtime for timestamps in the correct time zone
• /lib/modules/<uname -r> (kernel modules)
• /cryptsetup for LUKS