508 lines
19 KiB
C
508 lines
19 KiB
C
/*
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* The new sysinstall program.
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*
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* This is probably the last program in the `sysinstall' line - the next
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* generation being essentially a complete rewrite.
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*
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* $FreeBSD$
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*
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* Copyright (c) 1995
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* Jordan Hubbard. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* verbatim and that no modifications are made prior to this
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* point in the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include "sysinstall.h"
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#include <sys/disklabel.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/fcntl.h>
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#include <sys/wait.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <sys/mount.h>
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static int installUpgradeNonInteractive(dialogMenuItem *self);
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typedef struct _hitList {
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enum { JUST_COPY, CALL_HANDLER } action ;
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char *name;
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Boolean optional;
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void (*handler)(struct _hitList *self);
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} HitList;
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/* These are the only meaningful files I know about */
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static HitList etc_files [] = {
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{ JUST_COPY, "Xaccel.ini", TRUE, NULL },
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{ JUST_COPY, "X11", TRUE, NULL },
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{ JUST_COPY, "adduser.conf", TRUE, NULL },
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{ JUST_COPY, "aliases", TRUE, NULL },
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{ JUST_COPY, "aliases.db", TRUE, NULL },
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{ JUST_COPY, "amd.map", TRUE, NULL },
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{ JUST_COPY, "auth.conf", TRUE, NULL },
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{ JUST_COPY, "crontab", TRUE, NULL },
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{ JUST_COPY, "csh.cshrc", TRUE, NULL },
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{ JUST_COPY, "csh.login", TRUE, NULL },
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{ JUST_COPY, "csh.logout", TRUE, NULL },
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{ JUST_COPY, "cvsupfile", TRUE, NULL },
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{ JUST_COPY, "devfs.conf", TRUE, NULL },
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{ JUST_COPY, "dhclient.conf", TRUE, NULL },
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{ JUST_COPY, "disktab", TRUE, NULL },
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{ JUST_COPY, "dumpdates", TRUE, NULL },
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{ JUST_COPY, "exports", TRUE, NULL },
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{ JUST_COPY, "fbtab", TRUE, NULL },
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{ JUST_COPY, "fstab", FALSE, NULL },
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{ JUST_COPY, "ftpusers", TRUE, NULL },
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{ JUST_COPY, "gettytab", TRUE, NULL },
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{ JUST_COPY, "gnats", TRUE, NULL },
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{ JUST_COPY, "group", FALSE, NULL },
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{ JUST_COPY, "hosts", TRUE, NULL },
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{ JUST_COPY, "hosts.allow", TRUE, NULL },
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{ JUST_COPY, "hosts.equiv", TRUE, NULL },
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{ JUST_COPY, "hosts.lpd", TRUE, NULL },
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{ JUST_COPY, "inetd.conf", TRUE, NULL },
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{ JUST_COPY, "localtime", TRUE, NULL },
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{ JUST_COPY, "login.access", TRUE, NULL },
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{ JUST_COPY, "login.conf", TRUE, NULL },
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{ JUST_COPY, "mail", TRUE, NULL },
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{ JUST_COPY, "mail.rc", TRUE, NULL },
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{ JUST_COPY, "mac.conf", TRUE, NULL },
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{ JUST_COPY, "make.conf", TRUE, NULL },
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{ JUST_COPY, "manpath.config", TRUE, NULL },
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{ JUST_COPY, "master.passwd", FALSE, NULL },
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{ JUST_COPY, "mergemaster.rc", TRUE, NULL },
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{ JUST_COPY, "motd", TRUE, NULL },
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{ JUST_COPY, "namedb", TRUE, NULL },
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{ JUST_COPY, "networks", TRUE, NULL },
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{ JUST_COPY, "newsyslog.conf", TRUE, NULL },
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{ JUST_COPY, "nsmb.conf", TRUE, NULL },
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{ JUST_COPY, "nsswitch.conf", TRUE, NULL },
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{ JUST_COPY, "ntp.conf", TRUE, NULL },
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{ JUST_COPY, "pam.conf", TRUE, NULL },
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{ JUST_COPY, "passwd", TRUE, NULL },
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{ JUST_COPY, "periodic", TRUE, NULL },
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{ JUST_COPY, "pf.conf", TRUE, NULL },
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{ JUST_COPY, "portsnap.conf", TRUE, NULL },
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{ JUST_COPY, "ppp", TRUE, NULL },
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{ JUST_COPY, "printcap", TRUE, NULL },
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{ JUST_COPY, "profile", TRUE, NULL },
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{ JUST_COPY, "protocols", TRUE, NULL },
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{ JUST_COPY, "pwd.db", TRUE, NULL },
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{ JUST_COPY, "rc.local", TRUE, NULL },
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{ JUST_COPY, "rc.firewall", TRUE, NULL },
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{ JUST_COPY, "rc.conf.local", TRUE, NULL },
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{ JUST_COPY, "remote", TRUE, NULL },
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{ JUST_COPY, "resolv.conf", TRUE, NULL },
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{ JUST_COPY, "rmt", TRUE, NULL },
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{ JUST_COPY, "sendmail.cf", TRUE, NULL },
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{ JUST_COPY, "sendmail.cw", TRUE, NULL },
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{ JUST_COPY, "services", TRUE, NULL },
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{ JUST_COPY, "shells", TRUE, NULL },
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{ JUST_COPY, "skeykeys", TRUE, NULL },
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{ JUST_COPY, "snmpd.config", TRUE, NULL },
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{ JUST_COPY, "spwd.db", TRUE, NULL },
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{ JUST_COPY, "src.conf", TRUE, NULL },
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{ JUST_COPY, "ssh", TRUE, NULL },
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{ JUST_COPY, "sysctl.conf", TRUE, NULL },
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{ JUST_COPY, "syslog.conf", TRUE, NULL },
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{ JUST_COPY, "ttys", TRUE, NULL },
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{ 0, NULL, FALSE, NULL },
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};
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static void
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traverseHitlist(HitList *h)
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{
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system("rm -rf /etc/upgrade");
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Mkdir("/etc/upgrade");
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while (h->name) {
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if (!file_readable(h->name)) {
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if (!h->optional)
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msgConfirm("Unable to find an old /etc/%s file! That is decidedly non-standard and\n"
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"your upgraded system may function a little strangely as a result.", h->name);
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}
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else {
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if (h->action == JUST_COPY) {
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/* Move the just-loaded copy aside */
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vsystem("mv /etc/%s /etc/upgrade/%s", h->name, h->name);
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/* Copy the old one into its place */
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msgNotify("Resurrecting %s..", h->name);
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/* Do this with tar so that symlinks and such are preserved */
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if (vsystem("tar cf - %s | tar xpf - -C /etc", h->name))
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msgConfirm("Unable to resurrect your old /etc/%s! Hmmmm.", h->name);
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}
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else /* call handler */
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h->handler(h);
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}
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++h;
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}
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}
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int
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installUpgrade(dialogMenuItem *self)
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{
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char saved_etc[FILENAME_MAX];
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Boolean extractingBin = TRUE;
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if (variable_get(VAR_NONINTERACTIVE))
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return installUpgradeNonInteractive(self);
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variable_set2(SYSTEM_STATE, "upgrade", 0);
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dialog_clear();
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if (msgYesNo("Before beginning a binary upgrade, please review the upgrade instructions,\n"
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"which are located in the \"Install\" document under the main documentation\n"
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"menu. Given that you have read these instructions and understand the risks\n"
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"and precautions involved, are you sure that you want to proceed with\n"
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"this upgrade?") != 0)
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return DITEM_FAILURE;
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if (!Dists) {
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msgConfirm("First, you must select some distribution components. The upgrade procedure\n"
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"will only upgrade the distributions you select in the next set of menus.");
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if (!dmenuOpenSimple(&MenuDistributions, FALSE) || !Dists)
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return DITEM_FAILURE;
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}
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else if (!(Dists & DIST_BASE)) { /* No base selected? Not much of an upgrade.. */
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if (msgYesNo("You didn't select the base distribution as one of the distributons to load.\n"
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"This one is pretty vital to a successful upgrade. Are you SURE you don't\n"
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"want to select the base distribution? Chose No to bring up the Distributions\n"
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"menu again.") != 0) {
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if (!dmenuOpenSimple(&MenuDistributions, FALSE))
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return DITEM_FAILURE;
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}
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}
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/* Still?! OK! They must know what they're doing.. */
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if (!(Dists & DIST_BASE))
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extractingBin = FALSE;
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if (RunningAsInit) {
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Device **devs;
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int i, cnt;
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char *cp;
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cp = variable_get(VAR_DISK);
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devs = deviceFind(cp, DEVICE_TYPE_DISK);
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cnt = deviceCount(devs);
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if (!cnt) {
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msgConfirm("No disks found! Please verify that your disk controller is being\n"
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"properly probed at boot time. See the Hardware Guide on the\n"
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"Documentation menu for clues on diagnosing this type of problem.");
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return DITEM_FAILURE | DITEM_RESTORE;
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}
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else {
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/* Enable all the drives before we start */
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for (i = 0; i < cnt; i++)
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devs[i]->enabled = TRUE;
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}
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msgConfirm("OK. First, we're going to go to the disk label editor. In this editor\n"
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"you will be expected to Mount any partitions you're interested in\n"
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"upgrading. DO NOT set the Newfs flag to Y on anything in the label editor\n"
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"unless you're absolutely sure you know what you're doing! In this\n"
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"instance, you'll be using the label editor as little more than a fancy\n"
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"screen-oriented partition mounting tool.\n\n"
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"Once you're done in the label editor, press Q to return here for the next\n"
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"step.");
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if (DITEM_STATUS(diskLabelEditor(self)) == DITEM_FAILURE) {
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msgConfirm("The disk label editor returned an error status. Upgrade operation\n"
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"aborted.");
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return DITEM_FAILURE | DITEM_RESTORE;
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}
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/* Don't write out MBR info */
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variable_set2(DISK_PARTITIONED, "written", 0);
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if (DITEM_STATUS(diskLabelCommit(self)) == DITEM_FAILURE) {
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msgConfirm("Not all file systems were properly mounted. Upgrade operation\n"
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"aborted.");
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variable_unset(DISK_PARTITIONED);
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return DITEM_FAILURE | DITEM_RESTORE;
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}
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msgNotify("Updating /stand on root filesystem");
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(void)vsystem("find -x /stand | cpio %s -pdum /mnt", cpioVerbosity());
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if (DITEM_STATUS(chroot("/mnt")) == DITEM_FAILURE) {
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msgConfirm("Unable to chroot to /mnt - something is wrong with the\n"
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"root partition or the way it's mounted if this doesn't work.");
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variable_unset(DISK_PARTITIONED);
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return DITEM_FAILURE | DITEM_RESTORE;
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}
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chdir("/");
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installEnvironment();
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systemCreateHoloshell();
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}
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saved_etc[0] = '\0';
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/* Don't allow sources to be upgraded unless if we have src already */
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if (directory_exists("/usr/src/") && (Dists & DIST_SRC)) {
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Dists &= ~DIST_SRC;
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SrcDists = 0;
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msgConfirm("Warning: /usr/src exists and sources were selected as upgrade\n"
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"targets. Unfortunately, this is not the way to upgrade your\n"
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"sources - please use CTM or CVSup or some other method which\n"
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"handles ``deletion events'', unlike this particular feature.\n\n"
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"Your existing /usr/src will not be affected by this upgrade.\n");
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}
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if (extractingBin) {
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while (!*saved_etc) {
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char *cp = msgGetInput("/var/tmp/etc", "Under which directory do you wish to save your current /etc?");
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if (!cp || !*cp || Mkdir(cp)) {
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if (msgYesNo("Directory was not specified, was invalid or user selected Cancel.\n\n"
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"Doing an upgrade without first backing up your /etc directory is a very\n"
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"bad idea! Do you want to go back and specify the save directory again?") != 0)
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break;
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}
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else {
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SAFE_STRCPY(saved_etc, cp);
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}
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}
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if (saved_etc[0]) {
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msgNotify("Preserving /etc directory..");
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if (vsystem("tar -cBpf - -C /etc . | tar --unlink -xBpf - -C %s", saved_etc))
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if (msgYesNo("Unable to backup your /etc into %s.\n"
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"Do you want to continue anyway?", saved_etc) != 0)
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return DITEM_FAILURE;
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msgNotify("Preserving /root directory..");
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vsystem("tar -cBpf - -C / root | tar --unlink -xBpf - -C %s", saved_etc);
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}
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msgNotify("chflags'ing old binaries - please wait.");
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(void)vsystem("chflags -R noschg /bin /sbin /usr/sbin /usr/bin /usr/lib /usr/libexec /var/empty /boot/kernel*");
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if (directory_exists("/boot/kernel")) {
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msgNotify("Moving old kernel to /boot/kernel.prev");
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if (system("mv /boot/kernel /boot/kernel.prev")) {
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if (!msgYesNo("Hmmm! I couldn't move the old kernel over! Do you want to\n"
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"treat this as a big problem and abort the upgrade? Due to the\n"
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"way that this upgrade process works, you will have to reboot\n"
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"and start over from the beginning. Select Yes to reboot now"))
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systemShutdown(1);
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}
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else
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msgConfirm("NOTICE: Your old kernel is in /boot/kernel.prev should this\n"
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"upgrade fail for any reason and you need to boot your old\n"
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"kernel.");
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}
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}
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media:
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/* We do this very late, but we unfortunately need to back up /etc first */
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if (!mediaVerify())
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return DITEM_FAILURE;
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if (!DEVICE_INIT(mediaDevice)) {
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if (!msgYesNo("Couldn't initialize the media. Would you like\n"
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"to adjust your media selection and try again?")) {
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mediaDevice = NULL;
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goto media;
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}
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else
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return DITEM_FAILURE | DITEM_REDRAW | DITEM_RESTORE;
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}
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msgNotify("Beginning extraction of distributions..");
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if (DITEM_STATUS(distExtractAll(self)) == DITEM_FAILURE) {
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msgConfirm("Hmmmm. We couldn't even extract the base distribution. This upgrade\n"
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"should be considered a failure and started from the beginning, sorry!\n"
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"The system will reboot now.");
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dialog_clear();
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systemShutdown(1);
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}
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else if (Dists) {
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if (!extractingBin || !(Dists & DIST_BASE)) {
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msgNotify("The extraction process seems to have had some problems, but we got most\n"
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"of the essentials. We'll treat this as a warning since it may have been\n"
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"only non-essential distributions which failed to load.");
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}
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else {
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msgConfirm("Hmmmm. We couldn't even extract the base distribution. This upgrade\n"
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"should be considered a failure and started from the beginning, sorry!\n"
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"The system will reboot now.");
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dialog_clear();
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systemShutdown(1);
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}
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}
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if (extractingBin)
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vsystem("disklabel -B `awk '$2~/\\/$/ {print substr($1, 6, 3)}' /etc/fstab`");
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msgNotify("First stage of upgrade completed successfully!\n\n"
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"Next comes stage 2, where we attempt to resurrect your /etc\n"
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"directory!");
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if (saved_etc && chdir(saved_etc)) {
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msgConfirm("Unable to go to your saved /etc directory in %s?! Argh!\n"
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"Something went seriously wrong! It's quite possible that\n"
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"your former /etc is toast. I hope you didn't have any\n"
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"important customizations you wanted to keep in there.. :(", saved_etc);
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}
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else {
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/* Now try to resurrect the /etc files */
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traverseHitlist(etc_files);
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/* Resurrect the root dotfiles */
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vsystem("tar -cBpf - root | tar -xBpf - -C / && rm -rf root");
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}
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msgConfirm("Upgrade completed! All of your old /etc files have been restored.\n"
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"For your reference, the new /etc files are in /etc/upgrade/ in case\n"
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"you wish to upgrade these files by hand (though that should not be\n"
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"strictly necessary). If your root partition is specified in /etc/fstab\n"
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"using the old \"compatibility\" slice, you may also wish to update it to\n"
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"use a fully qualified slice name in order to avoid warnings on startup.\n\n"
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"When you're ready to reboot into the new system, simply exit the installation.");
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return DITEM_SUCCESS | DITEM_REDRAW | DITEM_RESTORE;
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}
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static int
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installUpgradeNonInteractive(dialogMenuItem *self)
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{
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char *saved_etc;
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Boolean extractingBin = TRUE;
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variable_set2(SYSTEM_STATE, "upgrade", 0);
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/* Make sure at least BIN is selected */
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Dists |= DIST_BASE;
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if (RunningAsInit) {
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Device **devs;
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int i, cnt;
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char *cp;
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cp = variable_get(VAR_DISK);
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devs = deviceFind(cp, DEVICE_TYPE_DISK);
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cnt = deviceCount(devs);
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if (!cnt) {
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msgConfirm("No disks found! Please verify that your disk controller is being\n"
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"properly probed at boot time. See the Hardware Guide on the\n"
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"Documentation menu for clues on diagnosing this type of problem.");
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return DITEM_FAILURE;
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}
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else {
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/* Enable all the drives before we start */
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for (i = 0; i < cnt; i++)
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devs[i]->enabled = TRUE;
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}
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msgConfirm("OK. First, we're going to go to the disk label editor. In this editor\n"
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"you will be expected to Mount any partitions you're interested in\n"
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"upgrading. DO NOT set the Newfs flag to Y on anything in the label editor\n"
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"unless you're absolutely sure you know what you're doing! In this\n"
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"instance, you'll be using the label editor as little more than a fancy\n"
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"screen-oriented partition mounting tool.\n\n"
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"Once you're done in the label editor, press Q to return here for the next\n"
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"step.");
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if (DITEM_STATUS(diskLabelEditor(self)) == DITEM_FAILURE) {
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msgConfirm("The disk label editor returned an error status. Upgrade operation\n"
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"aborted.");
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return DITEM_FAILURE;
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}
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/* Don't write out MBR info */
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variable_set2(DISK_PARTITIONED, "written", 0);
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if (DITEM_STATUS(diskLabelCommit(self)) == DITEM_FAILURE) {
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msgConfirm("Not all file systems were properly mounted. Upgrade operation\n"
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"aborted.");
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variable_unset(DISK_PARTITIONED);
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return DITEM_FAILURE;
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}
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if (extractingBin) {
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msgNotify("chflags'ing old binaries - please wait.");
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(void)vsystem("chflags -R noschg /mnt/");
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}
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msgNotify("Updating /stand on root filesystem");
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(void)vsystem("find -x /stand | cpio %s -pdum /mnt", cpioVerbosity());
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if (DITEM_STATUS(chroot("/mnt")) == DITEM_FAILURE) {
|
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msgConfirm("Unable to chroot to /mnt - something is wrong with the\n"
|
|
"root partition or the way it's mounted if this doesn't work.");
|
|
variable_unset(DISK_PARTITIONED);
|
|
return DITEM_FAILURE;
|
|
}
|
|
chdir("/");
|
|
systemCreateHoloshell();
|
|
}
|
|
|
|
if (!mediaVerify() || !DEVICE_INIT(mediaDevice)) {
|
|
msgNotify("Upgrade: Couldn't initialize media.");
|
|
return DITEM_FAILURE;
|
|
}
|
|
|
|
saved_etc = "/var/tmp/etc";
|
|
Mkdir(saved_etc);
|
|
msgNotify("Preserving /etc directory..");
|
|
if (vsystem("tar -cpBf - -C /etc . | tar -xpBf - -C %s", saved_etc)) {
|
|
msgNotify("Unable to backup your /etc into %s.", saved_etc);
|
|
return DITEM_FAILURE;
|
|
}
|
|
|
|
if (file_readable("/kernel")) {
|
|
msgNotify("Moving old kernel to /kernel.prev");
|
|
if (!system("chflags noschg /kernel && mv /kernel /kernel.prev")) {
|
|
/* Give us a working kernel in case we crash and reboot */
|
|
system("cp /kernel.prev /kernel");
|
|
}
|
|
}
|
|
|
|
msgNotify("Beginning extraction of distributions..");
|
|
if (DITEM_STATUS(distExtractAll(self)) == DITEM_FAILURE) {
|
|
msgConfirm("Hmmmm. We couldn't even extract the base distribution. This upgrade\n"
|
|
"should be considered a failure and started from the beginning, sorry!\n"
|
|
"The system will reboot now.");
|
|
dialog_clear();
|
|
systemShutdown(1);
|
|
}
|
|
else if (Dists) {
|
|
if (!(Dists & DIST_BASE)) {
|
|
msgNotify("The extraction process seems to have had some problems, but we got most\n"
|
|
"of the essentials. We'll treat this as a warning since it may have been\n"
|
|
"only non-essential distributions which failed to upgrade.");
|
|
}
|
|
else {
|
|
msgConfirm("Hmmmm. We couldn't even extract the base distribution. This upgrade\n"
|
|
"should be considered a failure and started from the beginning, sorry!\n"
|
|
"The system will reboot now.");
|
|
dialog_clear();
|
|
systemShutdown(1);
|
|
}
|
|
}
|
|
|
|
msgNotify("First stage of upgrade completed successfully.");
|
|
if (vsystem("tar -cpBf - -C %s . | tar --unlink -xpBf - -C /etc", saved_etc)) {
|
|
msgNotify("Unable to resurrect your old /etc!");
|
|
return DITEM_FAILURE;
|
|
}
|
|
return DITEM_SUCCESS | DITEM_REDRAW;
|
|
}
|