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 utilities
• POSIX shell
• switch_root
• mount
• cpio
• strip
  • Optional
• blkid
  • Required for UUID, LABEL, PARTUUID support
• mdev OR mdevd OR eudev OR systemd-udevd OR CONFIG_UEVENT_HELPER
  • systemd-udevd not tested
• lvm2
  • Required for LVM support
• cryptsetup
  • Required for LUKS support
• kmod OR busybox modutils with this patch (already included in KISS Linux)
  • Not required for monolithic kernel

Notes

• busybox modutils doesn't handle soft dependencies (modules.softdep). You must manually copy them using hooks
• busybox and toybox blkid doesn't support PARTUUID. You must use util-linux blkid for PARTUUID support

Installation

git clone https://github.com/illiliti/tinyramfs
cd tinyramfs
make install
vi /etc/tinyramfs/config # edit config for your needs
tinyramfs -o /boot/initramfs-<ver> # replace <ver> with current kernel version
# update your bootloader
# reboot...

Configuration

Statically via config

See config

Dynamically via kernel parameters

TODO finalize and document kernel command-line parameters

Thanks

E5ten
dylanaraps

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