Re: Testing sysinst.fs

["David Ross" <dross%pobox.com@localhost>]

I get the bad file descriptor error as well.  I think that:
mount -t ffs -u /kern/rootdev /
..is attempting to replace what's currently mounted at the root of the 
filesystem with /kern/rootdev which I guess corresponds to an image of the 
sysinst floppy loaded into memory.

Maybe kernfs just got disabled in the configuration for this kernel?  Or 
perhaps some other change broke it?  I think normally you'd be able to look 
in /kern after mounting kernfs there and see a few files such as rootdev 
that correspond to kernel abstractions.  When I look in /kern there's 
nothing there.

David Ross
dross%pobox.com@localhost

----- Original Message ----- 
From: "T. Makinen" <tjamaloo%gmail.com@localhost>
To: "David Brownlee" <abs%netbsd.org@localhost>
Cc: "David Ross" <dross%pobox.com@localhost>; <port-atari%netbsd.org@localhost>
Sent: Tuesday, November 04, 2008 3:43 PM
Subject: Re: Testing sysinst.fs


> On Tue, Nov 4, 2008 at 6:39 PM, David Brownlee <abs%netbsd.org@localhost> wrote:
> >        You can test/read and modify the contents of sysinst.fs
> >        and other similar files on a running NetBSD system. (See
> >        later note if you want to do this on a non NetBSD/atari
> >        system). As root:
> >
> >                # vnconfig vnd0 sysinst.fs
> >                # mount /dev/vnd0a /mnt
> >
> >                The contents of sysinst.fs are now available to be
> >                read, run or modified under /mnt
> >
> >                You can also simulate running the files inside the
> >                miniroot in a chroot() so the shell can only see
> >                the files inside.  Obviously if you let the install
> >                try to write to the disk containing the sysinst.fs
> >                file its all going to crash, but it should be
> >                possible to test installing to another disk.
> >
> >                # env SHELL=/bin/sh chroot /mnt
> >
> >                Finally when you are done:
> >
> >                # umount /mnt
> >                # vnconfig -u vnd0
> >
> >        I've had a look inside the latest current build of sysinst.fs
> >        and I can't see any issues with the .profile file. Can you
> >        see any your end or possibly make the file you are using
> >        available?
> >
> >
> >
> > http://ftp.netbsd.org/pub/NetBSD/NetBSD-daily/HEAD/200811020002Z/atari/installation/miniroot/sysinst.fs.gz
>
> Thanks for the sysinst testing/reading information! As a quick test I 
> tried
> NetBSD 4.0.1 sysinst and current sysinst.
>
> Differences are that NetBSD 4.0.1 installer executes .profile file, but
> complains following:
>
> mount_ffs: realpath /kern/rootdev: bad file descriptor
> cp: /tmp/.root_writable: read-only file system
>
> and then it proceeds to ask keyboard map.
>
> Current installer just complains about unterminated quoted string and
> drops to sh prompt.
>
> I copied and checked .profile files from both installers and they're 
> identical.
> so there seems to be some odd thing that causes this issue.
>
> -Tuomo