Re: /dev before the root filesystem is mounted

From: Ivan Ukhov
Date: Mon Nov 13 2006 - 07:19:50 EST


i dont use initrd. the kernel understands argument 'root=/dev/...', so
/dev should exist, mb not in a real filesystem, but just in ram or
something. i just want to know what devices are available for being
the root filesystem for the kernel (displaying all available devices
will be enough for me).

2006/11/13, Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx>:

> I want the kernel (2.4) to display (just using printk) all available
> devices with full path (/dev/...) before the root filesystem is
> mounted.

Case 1: You do not use an initrd/initramfs:
/ is empty, /dev does not exist.

Case 2: You do use an initrd/initramfs
You populated /dev during creation of the initrd/initramfs image OR
your init script inside the initrd/initramfs mknods the nodes when run.


-`J'
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