/* $NetBSD: md.c,v 1.7 2022/01/29 16:01:19 martin Exp $ */
/*
* Copyright 1997 Piermont Information Systems Inc.
* All rights reserved.
*
* Based on code written by Philip A. Nelson for Piermont Information
* Systems Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of Piermont Information Systems Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Compute whole disk size. Take max of (pm->dlcyl*pm->dlhead*pm->dlsec)
* and secperunit, just in case the disk is already labelled.
* (If our new label's RAW_PART size ends up smaller than the
* in-core RAW_PART size value, updating the label will fail.)
*/
pm->dlsize = pm->dlcyl*pm->dlhead*pm->dlsec;
if (disklabel.d_secperunit > pm->dlsize)
pm->dlsize = disklabel.d_secperunit;
return true;
}
/*
* md back-end code for menu-driven BSD disklabel editor.
*/
int
md_make_bsd_partitions(struct install_partition_desc *install)
{
return make_bsd_partitions(install);
}
/*
* hook called before writing new disklabel.
*/
bool
md_pre_disklabel(struct install_partition_desc *install,
struct disk_partitions *parts)
{
return true;
}
/*
* hook called after writing disklabel to new target disk.
*/
bool
md_post_disklabel(struct install_partition_desc *install,
struct disk_partitions *parts)
{
return true;
}
/*
* hook called after upgrade() or install() has finished setting
* up the target disk but immediately before the user is given the
* ``disks are now set up'' message.
*
* On the macppc, we use this opportunity to install the boot blocks.
*/
int
md_post_newfs(struct install_partition_desc *install)
{
const char *bootfile = "/boot";
/*
* XXX
* Only OpenFirmware version 1 and 2 machines need installboot(8)
* and it uses a faked Apple partition map with the primary bootxx.
* installboot(8) assumes that root partition is at the beginning of
* the disk and put a faked Apple partition map at the top of
* the partition, so it won't work if root partition has some
* offset from physical block 0 where the Apple driver descriptor
* map resides on.
*
* On OpenFirmware version 3 machines, the strategy used on OF1/2
* machines doesn't work (they don't recognize boot code info
* in Apple partition map entries) and they need to have
* an extra native partition (HFS or MSDOSFS) which can be
* recognized by the newer firmware to put a loadable bootloader.
* installboot(8) against partition `a' on such machines might
* corrupt existing disklabel or a valid Apple partition map.
*
* Currently there is no way to see OF version on running machine
* yet, so assume partition a has some offset on OF3 machines
* and don't try installboot(8) in that case.
*/
if (install->num == 0 || install->infos[0].cur_start != 0)
return 0;
