eda54d6828
This will now allow sysinstall to work properly if a FreeBSD CD/DVD is already mounted as /cdrom, instead of just crapping out when it tries to mount as /dist and gets EBUSY. PR: conf/28081 Tested by: jhb
202 lines
6.0 KiB
C
202 lines
6.0 KiB
C
/*
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* The new sysinstall program.
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*
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* This is probably the last attempt in the `sysinstall' line, the next
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* generation being slated to 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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* Copyright (c) 1995
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* Gary J Palmer. 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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/* These routines deal with getting things off of CDROM media */
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#include "sysinstall.h"
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#include <sys/stat.h>
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#include <sys/errno.h>
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#include <sys/param.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <grp.h>
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#include <fcntl.h>
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#include <libutil.h>
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#define CD9660
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#include <sys/mount.h>
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#include <isofs/cd9660/cd9660_mount.h>
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#undef CD9660
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static Boolean cdromMounted;
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static Boolean previouslyMounted; /* Was the disc already mounted? */
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static char mountpoint[MAXPATHLEN] = "/dist";
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static properties
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read_props(char *name)
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{
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int fd;
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properties n;
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fd = open(name, O_RDONLY);
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if (fd == -1)
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return NULL;
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n = properties_read(fd);
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close(fd);
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return n;
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}
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Boolean
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mediaInitCDROM(Device *dev)
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{
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struct iso_args args;
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properties cd_attr = NULL;
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char *cp = NULL;
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Boolean readInfo = TRUE;
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static Boolean bogusCDOK = FALSE;
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if (cdromMounted)
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return TRUE;
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Mkdir(mountpoint);
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bzero(&args, sizeof(args));
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args.fspec = dev->devname;
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args.flags = 0;
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if (mount("cd9660", mountpoint, MNT_RDONLY, (caddr_t) &args) == -1) {
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if (errno == EINVAL) {
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msgConfirm("The disc in your drive looks more like an Audio disc than a FreeBSD release.");
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return FALSE;
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} else if (errno == EBUSY) {
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/* Perhaps the CDROM drive is already mounted as /cdrom */
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if (file_readable("/cdrom/cdrom.inf")) {
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previouslyMounted = TRUE;
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strlcpy(mountpoint, "/cdrom", 7);
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}
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} else {
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msgConfirm("Error mounting %s on %s: %s (%u)", dev->devname, mountpoint, strerror(errno), errno);
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return FALSE;
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}
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}
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cdromMounted = TRUE;
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if (!file_readable(string_concat(mountpoint, "/cdrom.inf")) && !bogusCDOK) {
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if (msgYesNo("Warning: The disc currently in the drive is either not a FreeBSD\n"
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"disc or it is an older (pre 2.1.5) FreeBSD CD which does not\n"
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"have a version number on it. Do you wish to use this disc anyway?") != 0) {
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if (!previouslyMounted)
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unmount(mountpoint, MNT_FORCE);
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cdromMounted = FALSE;
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return FALSE;
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}
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else {
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readInfo = FALSE;
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bogusCDOK = TRUE;
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}
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}
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if (readInfo) {
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if (!(cd_attr = read_props(string_concat(mountpoint, "/cdrom.inf")))
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|| !(cp = property_find(cd_attr, "CD_VERSION"))) {
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msgConfirm("Unable to find a %s/cdrom.inf file.\n"
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"Either this is not a FreeBSD disc, there is a problem with\n"
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"the CDROM driver or something is wrong with your hardware.\n"
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"Please fix this problem (check the console logs on VTY2) and\n"
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"try again.", mountpoint);
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}
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else {
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if (variable_cmp(VAR_RELNAME, cp) &&
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variable_cmp(VAR_RELNAME, "any") &&
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variable_cmp(cp, "any") &&
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!bogusCDOK) {
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msgConfirm("Warning: The version of the FreeBSD disc currently in the drive\n"
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"(%s) does not match the version of the boot floppy\n"
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"(%s).\n\n"
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"If this is intentional, to avoid this message in the future\n"
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"please visit the Options editor to set the boot floppy version\n"
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"string to match that of the disc before selecting it as your\n"
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"installation media.", cp, variable_get(VAR_RELNAME));
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if (msgYesNo("Would you like to try and use this disc anyway?") != 0) {
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if (!previouslyMounted)
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unmount(mountpoint, MNT_FORCE);
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cdromMounted = FALSE;
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properties_free(cd_attr);
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return FALSE;
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}
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else
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bogusCDOK = TRUE;
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}
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if ((cp = property_find(cd_attr, "CD_MACHINE_ARCH")) != NULL) {
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if (strcmp(cp, "any") &&
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#ifdef __alpha__
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strcmp(cp, "alpha")) {
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#else
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strcmp(cp, "x86")) {
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#endif
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msgConfirm("Fatal: The FreeBSD install CD/DVD currently in the drive\n"
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"is for the %s architecture, not the machine you're using.\n\n"
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"Please use the correct installation CD/DVD for your machine type.", cp);
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if (!previouslyMounted)
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unmount(mountpoint, MNT_FORCE);
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cdromMounted = FALSE;
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properties_free(cd_attr);
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return FALSE;
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}
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}
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}
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}
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if (cd_attr)
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properties_free(cd_attr);
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return TRUE;
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}
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FILE *
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mediaGetCDROM(Device *dev, char *file, Boolean probe)
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{
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return mediaGenericGet(mountpoint, file);
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}
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void
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mediaShutdownCDROM(Device *dev)
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{
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if (!cdromMounted)
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return;
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if (previouslyMounted) {
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cdromMounted = FALSE;
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return;
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}
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if (unmount(mountpoint, MNT_FORCE) != 0)
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msgConfirm("Could not unmount the CDROM/DVD from %s: %s", mountpoint, strerror(errno));
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else
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cdromMounted = FALSE;
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}
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