Subject: Re: kern/7170
To: None <email@example.com, firstname.lastname@example.org>
From: Todd Vierling <email@example.com>
Date: 12/01/2003 17:15:34
On Mon, 1 Dec 2003 firstname.lastname@example.org wrote:
: State-Changed-From-To: open->closed
: State-Changed-By: dsl
: State-Changed-When: Mon Dec 1 21:32:51 UTC 2003
: init.main will create an MFS /dev if /dev/console is absent.
While this does implement *one* of the cases mentioned in 7170, I wouldn't
say that this completely fixes the bug in question, as a MFS /dev requires a
valid /dev/MAKEDEV containing information about /dev/console. It also
requires that the running kernel have MFS compiled in, which may not be the
case in a low memory flash disk based embedded system.
It certainly doesn't help if someone hosed *all* of /dev, which is part of
the point of kern/7170: to add some way that you can get to /bin/sh even if
/dev is hosed altogether. Since the kernel does in fact "know" what the
console major/minor is, it shouldn't be a problem to have it roll a file
descriptor onto 0/1/2 before running init.
-- Todd Vierling <email@example.com> <firstname.lastname@example.org>