Re: 2.4.18 --> 2.4.19. Ramdisk requires floppy?

From: H. Peter Anvin (hpa@zytor.com)
Date: Tue Sep 03 2002 - 21:16:38 EST


Followup to: <20020903165133.GA8726@southpole.se>
By author: jakob@southpole.se (Jakob Sandgren)
In newsgroup: linux.dev.kernel
>
> Hi,
>
> I've noticed that the 2.4.19 version of "prepare_namespace"
> (init/do_mounts.c) not allows you to mount a non floppy as a
> ramdisk(?). This has changed since 2.4.18 (split of main.c ->
> {do_mounts,main}.c).
>
> 2.4.18 does a very simple check (below):
>
> --- 2.4.18 ---
> #ifdef CONFIG_BLK_DEV_RAM
> #ifdef CONFIG_BLK_DEV_INITRD
> if (mount_initrd)
> initrd_load();
> else
> #endif
> rd_load();
> #endif
> --- 2.4.18 ---
>
> however, in 2.4.19 it just tries to load a ramdisk if it's on a
> floppy. Why? There may still be a ramdisk on an other device, NOT
> using initrd.
>

You can't search every device hunting for a ramdisk. rd_load() is
ancient cruft that should be nuked, and will be pushed into userspace
as part of the initramfs/early userspace work.

        -hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt	<amsp@zytor.com>
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