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synced 2024-12-03 09:00:21 +00:00
Because there are so many more partitions on pc98 than on wintel (16
vs 4), supress all unused partition output unless -v is specified. This makes operating on a 'typical' disk with one partition less painful. The 30 lines needed for the empty partitions no longer scroll the useful information off the screen. When the user requests a specific partition, the unused information is not suppressed. Also add the partition name to the -s output. Initialize the partition name to 'FreeBSD' when -I is specified.
This commit is contained in:
Warner Losh
parent
18717f69b1
commit
95f75d437b
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=168934
@ -122,6 +122,7 @@ Ignored if
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is given.
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.It Fl v
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Be verbose.
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Partitions that are unused are suppressed unless this flag is specified.
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When
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.Fl f
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is used,
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@ -153,7 +153,7 @@ static void print_s0(int which);
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static void print_part(int i);
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static void init_sector0(unsigned long start);
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static void init_boot(void);
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static void change_part(int i);
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static void change_part(int i, int force);
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static void print_params(void);
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static void change_active(int which);
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static void change_code(void);
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@ -254,16 +254,16 @@ main(int argc, char *argv[])
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err(1, "read_s0");
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printf("%s: %d cyl %d hd %d sec\n", disk, dos_cyls, dos_heads,
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dos_sectors);
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printf("Part %11s %11s %4s %4s\n", "Start", "Size", "MID",
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"SID");
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printf("Part %11s %11s %4s %4s %-16s\n", "Start", "Size", "MID",
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"SID", "Name");
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for (i = 0; i < NDOSPART; i++) {
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partp = ((struct pc98_partition *) &mboot.parts) + i;
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if (partp->dp_sid == 0)
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continue;
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printf("%4d: %11u %11u 0x%02x 0x%02x\n", i + 1,
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printf("%4d: %11u %11u 0x%02x 0x%02x %-16.16s\n", i + 1,
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partp->dp_scyl * cylsecs,
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(partp->dp_ecyl - partp->dp_scyl + 1) * cylsecs,
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partp->dp_mid, partp->dp_sid);
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partp->dp_mid, partp->dp_sid, partp->dp_name);
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}
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exit(0);
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}
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@ -276,6 +276,7 @@ main(int argc, char *argv[])
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partp = (struct pc98_partition *) (&mboot.parts[0]);
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partp->dp_mid = DOSMID_386BSD;
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partp->dp_sid = DOSSID_386BSD;
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strncpy(partp->dp_name, "FreeBSD", sizeof(partp->dp_name));
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/* Start c/h/s. */
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partp->dp_scyl = partp->dp_ipl_cyl = 1;
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partp->dp_shd = partp->dp_ipl_head = 1;
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@ -312,9 +313,9 @@ main(int argc, char *argv[])
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printf("Information from DOS bootblock is:\n");
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if (partition == -1)
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for (i = 1; i <= NDOSPART; i++)
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change_part(i);
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change_part(i, v_flag);
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else
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change_part(partition);
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change_part(partition, 1);
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if (u_flag || a_flag)
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change_active(partition);
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@ -349,6 +350,17 @@ usage()
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exit(1);
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}
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static struct pc98_partition mtpart;
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static int
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part_unused(int i)
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{
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struct pc98_partition *partp;
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partp = ((struct pc98_partition *) &mboot.parts) + i - 1;
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return (bcmp(partp, &mtpart, sizeof (struct pc98_partition)) == 0);
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}
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static void
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print_s0(int which)
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{
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@ -356,30 +368,31 @@ print_s0(int which)
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print_params();
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printf("Information from DOS bootblock is:\n");
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if (which == -1)
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if (which == -1) {
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for (i = 1; i <= NDOSPART; i++)
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printf("%d: ", i), print_part(i);
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if (v_flag || !part_unused(i)) {
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printf("%d: ", i);
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print_part(i);
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}
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}
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else
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print_part(which);
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}
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static struct pc98_partition mtpart;
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static void
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print_part(int i)
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{
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struct pc98_partition *partp;
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u_int64_t part_sz, part_mb;
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partp = ((struct pc98_partition *) &mboot.parts) + i - 1;
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if (!bcmp(partp, &mtpart, sizeof (struct pc98_partition))) {
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if (part_unused(i)) {
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printf("<UNUSED>\n");
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return;
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}
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/*
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* Be careful not to overflow.
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*/
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partp = ((struct pc98_partition *) &mboot.parts) + i - 1;
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part_sz = (partp->dp_ecyl - partp->dp_scyl + 1) * cylsecs;
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part_mb = part_sz * secsize;
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part_mb /= (1024 * 1024);
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@ -422,66 +435,68 @@ init_sector0(unsigned long start)
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}
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static void
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change_part(int i)
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change_part(int i, int force)
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{
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struct pc98_partition *partp =
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((struct pc98_partition *) &mboot.parts) + i - 1;
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printf("The data for partition %d is:\n", i);
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print_part(i);
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if (!force && part_unused(i))
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return;
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if (u_flag && ok("Do you want to change it?")) {
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int tmp;
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printf("The data for partition %d is:\n", i);
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print_part(i);
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if (i_flag) {
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bzero((char *)partp, sizeof (struct pc98_partition));
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if (i == 1) {
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init_sector0(1);
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printf("\nThe static data for the slice 1 has been reinitialized to:\n");
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print_part(i);
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if (u_flag && ok("Do you want to change it?")) {
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int tmp;
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if (i_flag) {
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bzero((char *)partp, sizeof (struct pc98_partition));
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if (i == 1) {
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init_sector0(1);
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printf("\nThe static data for the slice 1 has been reinitialized to:\n");
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print_part(i);
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}
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}
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do {
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int x_start = partp->dp_scyl * cylsecs ;
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int x_size = (partp->dp_ecyl - partp->dp_scyl + 1) * cylsecs;
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Decimal("sysmid", partp->dp_mid, tmp);
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Decimal("syssid", partp->dp_sid, tmp);
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String ("system name", partp->dp_name, 16);
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Decimal("start", x_start, tmp);
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Decimal("size", x_size, tmp);
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if (ok("Explicitly specify beg/end address ?"))
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{
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int tsec,tcyl,thd;
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tcyl = partp->dp_scyl;
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thd = partp->dp_shd;
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tsec = partp->dp_ssect;
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Decimal("beginning cylinder", tcyl, tmp);
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Decimal("beginning head", thd, tmp);
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Decimal("beginning sector", tsec, tmp);
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partp->dp_scyl = tcyl;
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partp->dp_ssect = tsec;
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partp->dp_shd = thd;
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partp->dp_ipl_cyl = partp->dp_scyl;
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partp->dp_ipl_sct = partp->dp_ssect;
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partp->dp_ipl_head = partp->dp_shd;
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tcyl = partp->dp_ecyl;
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thd = partp->dp_ehd;
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tsec = partp->dp_esect;
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Decimal("ending cylinder", tcyl, tmp);
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Decimal("ending head", thd, tmp);
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Decimal("ending sector", tsec, tmp);
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partp->dp_ecyl = tcyl;
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partp->dp_esect = tsec;
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partp->dp_ehd = thd;
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} else
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dos(x_start, x_size, partp);
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print_part(i);
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} while (!ok("Are we happy with this entry?"));
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}
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do {
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int x_start = partp->dp_scyl * cylsecs ;
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int x_size = (partp->dp_ecyl - partp->dp_scyl + 1) * cylsecs;
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Decimal("sysmid", partp->dp_mid, tmp);
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Decimal("syssid", partp->dp_sid, tmp);
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String ("system name", partp->dp_name, 16);
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Decimal("start", x_start, tmp);
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Decimal("size", x_size, tmp);
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if (ok("Explicitly specify beg/end address ?"))
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{
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int tsec,tcyl,thd;
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tcyl = partp->dp_scyl;
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thd = partp->dp_shd;
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tsec = partp->dp_ssect;
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Decimal("beginning cylinder", tcyl, tmp);
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Decimal("beginning head", thd, tmp);
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Decimal("beginning sector", tsec, tmp);
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partp->dp_scyl = tcyl;
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partp->dp_ssect = tsec;
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partp->dp_shd = thd;
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partp->dp_ipl_cyl = partp->dp_scyl;
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partp->dp_ipl_sct = partp->dp_ssect;
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partp->dp_ipl_head = partp->dp_shd;
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tcyl = partp->dp_ecyl;
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thd = partp->dp_ehd;
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tsec = partp->dp_esect;
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Decimal("ending cylinder", tcyl, tmp);
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Decimal("ending head", thd, tmp);
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Decimal("ending sector", tsec, tmp);
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partp->dp_ecyl = tcyl;
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partp->dp_esect = tsec;
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partp->dp_ehd = thd;
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} else
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dos(x_start, x_size, partp);
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print_part(i);
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} while (!ok("Are we happy with this entry?"));
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}
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}
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static void
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