NetBSD Problem Report #50436

From www@NetBSD.org  Mon Nov 16 16:42:29 2015
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Date: Mon, 16 Nov 2015 16:42:27 +0000 (UTC)
From: userm57@yahoo.com
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To: gnats-bugs@NetBSD.org
Subject: A filesystem created by newfs in NetBSD is not compatible with Mac OS "NetBSD/Mac68k Installer".
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>Number:         50436
>Category:       port-mac68k
>Synopsis:       A filesystem created by newfs in NetBSD is not compatible with Mac OS "NetBSD/Mac68k Installer".
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-mac68k-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Nov 16 16:45:01 +0000 2015
>Originator:     Stanley Johnson
>Release:        NetBSD 7.0 (release) with customized kernel
>Organization:
N/A
>Environment:
NetBSD maclciii 7.0 NetBSD 7.0 (MACLCIII) #1: Tue Nov 10 03:33:23 MST 2015  root@maclciii:/usr/src/sys/arch/mac68k/compile/MACLCIII mac68k
>Description:
A filesystem created by Mkfs (Nov 12 1999 version) in Mac OS is compatible with the Mac OS "NetBSD/Mac68k Installer" and NetBSD, but a filesystem created with newfs in NetBSD is not compatible with the Mac OS "NetBSD/Mac68k Installer".

"NetBSD/Mac68k Installer" is a good way to access and modify a non-functioning NetBSD installation from Mac OS, and it's also a quicker way to install NetBSD using the traditional method (e.g. "NetBSD/Mac68k Installer" can be run on a G3, G4 or G5 with SCSI to install NetBSD packages to a SCSI disk more quickly than the packages can be installed using a native 68030 system).

The practical result of this problem is that any NetBSD partition created using newfs is no longer accessible from Mac OS.
>How-To-Repeat:
From an existing NetBSD installation on a 68030 system (such as a Mac LC III), create a filesystem using newfs.  Use Mkfs in Mac OS to set the partition as a "NetBSD root & usr" partition, then try to access the partition using "NetBSD/Mac68k Installer" (this will fail).
>Fix:
Probably "NetBSD/Mac68k Installer" needs to be updated to support the specific version of the filesystem that is created by NetBSD 7.0 newfs.

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