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SubjectRe: kernel cmdline: root=/dev/sdb1,/dev/sda1 "fallback"?
Tomasz Chmielewski wrote:
>
> All right.
> I see that initramfs is attached to the kernel itself.
>
> So it leaves me only a question: will I fit all tools into 300 kB
> (considering I'll use uClibc and busybox)?
>

You don't need to use busybox and have a bunch of tools.

The klibc distribution comes with "kinit", which does the equivalent to
the kernel root-mounting code; it's in the tens of kilobytes, at least
on x86. If you're using ARM, you can compile it as Thumb.

-hpa

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