[debian-knoppix] Use of real-root-dev question

[Ernesto Domato <ernesto@domato.com.ar>]

Looking at the linuxrc script on the boot image I see that it's using:

echo "0x100" > /proc/sys/kernel/real-root-dev

as the way to change the root partition when it's done.

So, the question is, why does it do that instead of the "pivot_root" 
method mentioned on the initrd documentation that comes with the 
kernel?, is there any reason for that?.

Thanks and greettings.
Ernesto

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