jamesmichealjohnson/tinyramfs

Tiny initramfs written in POSIX shell

Tinyramfs

Currently tinyramfs is incomplete, don't expect that everything is working

Features

• No local's, no bashisms, only POSIX shell
• Portable, not distro specific
• Easy to use configuration
• Build time and init time hooks
• LUKS (detached header, key), LVM
• mdev, mdevd, eudev, systemd-udevd

Dependencies

• POSIX make (build time)
• POSIX utilities
• POSIX shell
• switch_root
• mount
• cpio
• ldd
  • Optional. Required for copying binary dependencies
• strip
  • Optional. Required for reducing image size by stripping binaries
• blkid
  • Optional. Required for UUID, LABEL, PARTUUID support
• mdev OR mdevd OR eudev OR systemd-udevd OR CONFIG_UEVENT_HELPER
  • Optional. Required for modular kernel, /dev/mapper/* and /dev/disk/* creation
• lvm2
  • Optional. Required for LVM support
• cryptsetup
  • Optional. Required for LUKS support
• busybox loadkmap
  • Optional. Required for keymap support
• kmod OR busybox modutils with patch (already included in KISS Linux)
  • Not required for monolithic kernel

Installation

git clone https://github.com/illiliti/tinyramfs
cd tinyramfs
make install

Usage

# read tinyramfs.config(5) and setup /etc/tinyramfs/config
# run as root
tinyramfs -o "/boot/initramfs-$(uname -r)"
# update your bootloader
# reboot...

Thanks

E5ten
dylanaraps

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