Am Montag, 9. Februar 2009 23:26:46 schrieb Stroller: > Am I not correct in thinking that initramfs used to be / can be / was > originally a separate file which goes in /boot and is described with > an extra boot parameter?
Yes, you are. There are several ways nowadays. I use the easy one: Populate a
directory tree with the contents of the initramfs and configure that directory
in menuconfig. The kernel build system handles the details.
> I wasn't aware that you could embed the initramfs into the kernel
> itself - after reading Neil's message yesterday I looked up more about
> the initramfs, contemplated about the idea of doing so and decided
> "naw, you'll never be able to do that, it would make the kernel too
> big and take up too much memory".
Nope. It's freed right after swithing to the real root fs.
> I certainly can recognise that you're doing something bogus, because
> your kernel parameters use "realroot=" and not just "root="
Luckily the kernel ignores everything it doesn't know so you can give it any
option you like. In this case I use "realroot" inside initramfs to tell it (by
parsing /proc/cmdline) what's the real volume for the encrypted root device
(/dev/mapper/c-root) listed in fstab.
Bye...
Dirk
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