Re: vndconfig vs mount_cd9660

[mlelstv%serpens.de@localhost (Michael van Elst)]

wiz%NetBSD.org@localhost (Thomas Klausner) writes:

>I wanted to mount an ISO image (on 9.99.77/amd64), so I did, following the guide:

># vnconfig -c vnd0 file.iso

>The disklabel looks unpromising.

>4 partitions:
>#        size    offset     fstype [fsize bsize cpg/sgs]
> a:  16868776         0     4.2BSD      0     0     0  # (Cyl.      0 -   8236*)
> d:  16868776         0     unused      0     0        # (Cyl.      0 -   8236*)

That's a bit large, isn't it? With the default 512 byte blocks your image
is about 8GB. The 9.99.77/amd64 ISO image from daily however is 484MB.

Otherwise:

-rw-r--r--  1 mlelstv  staff  484M Dec 28 01:21 NetBSD-9.99.77-amd64.iso

% sudo vnconfig -c vnd0 NetBSD-9.99.77-amd64.iso 
% sudo mount -t cd9660 /dev/vnd0a /mnt
% ls /mnt
altroot    boot.cfg   lib        mnt2       sbin       usr
amd64      dev        libdata    netbsd     stand      var
bin        etc        libexec    rescue     targetroot
boot       install.sh mnt        root       tmp

N.B. the default disklabel for that iso shows:

4 partitions:
#        size    offset     fstype [fsize bsize cpg/sgs]
 a:    990512         0    ISO9660       0             # (Cyl.      0 -    483*)
 d:    990512         0     unused      0     0        # (Cyl.      0 -    483*)

but things also work if I change the (in-core) label to 4.2BSD instead
of ISO9660.


-- 
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                                Michael van Elst
Internet: mlelstv%serpens.de@localhost
                                "A potential Snark may lurk in every tree."