distrib/utils/sysinst/upgrade.c

   1 /*      $NetBSD: upgrade.c,v 1.49 2006/04/05 16:55:05 garbled Exp $     */
   2
   3 /*
   4  * Copyright 1997 Piermont Information Systems Inc.
   5  * All rights reserved.
   6  *
   7  * Written by Philip A. Nelson for Piermont Information Systems Inc.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed for the NetBSD Project by
  20  *      Piermont Information Systems Inc.
  21  * 4. The name of Piermont Information Systems Inc. may not be used to endorse
  22  *    or promote products derived from this software without specific prior
  23  *    written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
  26  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
  29  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  35  * THE POSSIBILITY OF SUCH DAMAGE.
  36  *
  37  */
  38
  39 /* upgrade.c -- upgrade an installation. */
  40
  41 #include <stdio.h>
  42 #include <curses.h>
  43 #include <errno.h>
  44 #include "defs.h"
  45 #include "msg_defs.h"
  46 #include "menu_defs.h"
  47
  48 /*
  49  * local prototypes
  50  */
  51 static int save_X(void);
  52 static int merge_X(void);
  53
  54 /*
  55  * Do the system upgrade.
  56  */
  57 void
  58 do_upgrade(void)
  59 {
  60
  61         msg_display(MSG_upgradeusure);
  62         process_menu(MENU_noyes, NULL);
  63         if (!yesno)
  64                 return;
  65
  66         get_ramsize();
  67
  68         if (find_disks(msg_string(MSG_upgrade)) < 0)
  69                 return;
  70
  71         if (md_pre_update() < 0)
  72                 return;
  73
  74         process_menu(MENU_distset, NULL);
  75
  76         if (mount_disks() != 0)
  77                 return;
  78
  79
  80         /*
  81          * Save X symlink, ...
  82          */
  83         if (save_X())
  84                 return;
  85
  86 #ifdef AOUT2ELF
  87         move_aout_libs();
  88 #endif
  89         /* Do any md updating of the file systems ... e.g. bootblocks,
  90            copy file systems ... */
  91         if (!md_update())
  92                 return;
  93
  94         wrefresh(curscr);
  95         wmove(stdscr, 0, 0);
  96         wclear(stdscr);
  97         wrefresh(stdscr);
  98
  99         /* Done with disks. Ready to get and unpack tarballs. */
 100         if (get_and_unpack_sets(1, MSG_disksetupdoneupdate,
 101             MSG_upgrcomplete, MSG_abortupgr) != 0)
 102                 return;
 103
 104         if (!md_post_extract() == 0)
 105                 return;
 106
 107         merge_X();
 108
 109         sanity_check();
 110 }
 111
 112 /*
 113  * Save X symlink to X.old so it can be recovered later
 114  */
 115 static int
 116 save_X(void)
 117 {
 118         /* Only care for X if it's a symlink */
 119         if (target_symlink_exists_p("/usr/X11R6/bin/X")) {
 120                 if (target_symlink_exists_p("/usr/X11R6/bin/X.old")) {
 121                         msg_display(MSG_X_oldexists);
 122                         process_menu(MENU_ok, NULL);
 123                         return EEXIST;
 124                 }
 125
 126 #ifdef DEBUG
 127                 printf("saving /usr/X11R6/bin/X as .../X.old ...");
 128 #endif
 129
 130                 /* Move target .../X to .../X.old.  Abort on error. */
 131                 mv_within_target_or_die("/usr/X11R6/bin/X",
 132                                         "/usr/X11R6/bin/X.old");
 133         }
 134
 135         return 0;
 136 }
 137
 138 /*
 139  * Merge back saved target X files after unpacking the new
 140  * sets has completed.
 141  */
 142 static int
 143 merge_X(void)
 144 {
 145         if (target_symlink_exists_p("/usr/X11R6/bin/X.old")) {
 146                 /* Only move back X if it's a symlink - we don't want
 147                  * to restore old binaries */
 148                 mv_within_target_or_die("/usr/X11R6/bin/X.old",
 149                                         "/usr/X11R6/bin/X");
 150         }
 151
 152         return 0;
 153 }
 154
 155 /*
 156  * Unpacks sets,  clobbering existing contents.
 157  */
 158 void
 159 do_reinstall_sets(void)
 160 {
 161
 162         unwind_mounts();
 163         msg_display(MSG_reinstallusure);
 164         process_menu(MENU_noyes, NULL);
 165         if (!yesno)
 166                 return;
 167
 168         if (find_disks(msg_string(MSG_reinstall)) < 0)
 169                 return;
 170
 171         process_menu(MENU_distset, NULL);
 172
 173         if (mount_disks() != 0)
 174                 return;
 175
 176         /* Unpack the distribution. */
 177         if (get_and_unpack_sets(0, NULL, MSG_unpackcomplete, MSG_abortunpack) != 0)
 178                 return;
 179
 180         sanity_check();
 181 }