isohybrid: Improve help/man

Signed-off-by: Gene Cumm <gene.cumm@gmail.com>

diff --git a/man/isohybrid.1 b/man/isohybrid.1
index 21e7a34..549011b 100644 (file)
--- a/man/isohybrid.1
+++ b/man/isohybrid.1
@@ -1,25 +1,24 @@
 .TH isohybrid 1 "17 Jan 2014" "isohybrid"
 .SH "NAME"
-isohybrid \(em Post-process an ISO 9660 image generated with mkisofs or
-genisoimage to allow hybrid booting as a CD-ROM or as a hard disk.
+isohybrid \(em Post-process an ISO 9660 image for booting as a hard disk.
 .SH "SYNOPSIS"
 .B isohybrid
 [\fBOPTIONS\fP]
 .I <boot.iso>
 .SH "DESCRIPTION"
 .PP
-The \fBisohybrid\fR utility modifies a an ISO 9660 image generated with
+The \fBisohybrid\fR utility modifies an ISO 9660 image generated with
 mkisofs, genisoimage, or compatible utilities, to be bootable as a CD-ROM or
 as a hard disk.
 .SH "OPTIONS"
 .TP
 \fB-h\fR \fI<X>\fR\fN
 .br
-Number of default geometry heads
+Number of geometry heads (default 64)
 .TP
 \fB-s\fR \fI<X>\fR
 .br
-Number of default geometry sectors
+Number of geometry sectors (default 32)
 .TP
 \fB-e\fR \fI<X>\fR, \fB--entry\fR \fI<X>\fR
 Specify parititon entry number (1-4)
@@ -30,6 +29,10 @@ Specify partition offset (default 0)
 .TP
 \fB-t\fR \fI<X>\fR, \fB--type\fR \fI<X>\fR
 .br
+Specify partition type (default 0x17)
+.TP
+\fB-i\fR \fI<X>\fR, \fB--id\fR \fI<X>\fR
+.br
 Specify MBR ID (default random)
 .TP
 \fB-u\fR, \fB--uefi\fB

diff --git a/utils/isohybrid.c b/utils/isohybrid.c
index 97d43b8..410bb60 100644 (file)
--- a/utils/isohybrid.c
+++ b/utils/isohybrid.c
@@ -228,8 +228,8 @@ printh(void)
 
     printf("\n");
     printf("Options:\n");
-    printf(FMT, "   -h <X>", "Number of default geometry heads");
-    printf(FMT, "   -s <X>", "Number of default geometry sectors");
+    printf(FMT, "   -h <X>", "Number of geometry heads (default 64)");
+    printf(FMT, "   -s <X>", "Number of geometry sectors (default 32)");
     printf(FMT, "   -e --entry", "Specify partition entry number (1-4)");
     printf(FMT, "   -o --offset", "Specify partition offset (default 0)");
     printf(FMT, "   -t --type", "Specify partition type (default 0x17)");