Initramfs and TMPFS!

[Kent Robotti]

   >I'm not subscribed, so sorry if this doesn't fall into the original
   >thread. I'm curious as to why the kernel has to include the decoder -
   >why you can't just run a self-extracting executable in an empty
   >initramfs (with a preset capacity if needs be).

The kernel already includes gunzip for itself, so it just needs an
unarchiver (tar or cpio) which should just add a few Kb.

Every self-extracting executable would require the builtin code
to extract itself.

The kernel code to recognize and execute the self-extracting code,
would probably be the same size as an unarchiver (tar or cpio).

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