Hi, Lukas Wunner: > Dracut, which provides linux-initramfs-tool and is thus an alternative > to initramfs-tools, supports restoring the initrd on shutdown and > pivoting into it:
I might try to come up with a hackish PoC for Tails soon (rationale for the curious: we will soon start relying on the kernel's memory poisoning to erase most memory on shutdown; this can only work if the read-write branch of our aufs filesystem is unmounted on shutdown, and switching to dracut is a longer-term project, so our options so far are either hacking this support into initramfs-tools, or using a dracut-generated initrd for shutdown only). FWIW Arch Linux' mkinitcpio also does: https://git.archlinux.org/mkinitcpio.git/tree/shutdown Details of the needed interface can be found in: * https://www.freedesktop.org/wiki/Software/systemd/InitrdInterface/ * https://www.freedesktop.org/wiki/Software/systemd/RootStorageDaemons/ * systemd-shutdown(8) Cheers, -- intrigeri
