MK9660(8)MK9660(8)
NAME
dump9660, mk9660 – create an ISO-9660 CD image
SYNOPSIS
disk/mk9660
[
-:D
]
[
-9cjr
]
[
-b
bootfile
]
[
-B
bootfile
]
[
-E
bootfile
]
[
-p
proto
]
[
-s
src
]
[
-v
volume
]
image
disk/dump9660
[
-:D
]
[
-9cjr
]
[
-p
proto
]
[
-s
src
]
[
-v
volume
]
[
-m
maxsize
]
[
-n
now
]
image
DESCRIPTION
Mk9660
writes to the random access file
image
an ISO-9660 CD image containing the
files named in
proto
(by default,
/sys/lib/sysconfig/proto/portproto)
from the file tree
src
(by default,
the current directory).
The
proto
file format is described in
proto(2).
The created CD image will be in ISO-9660
format, but by default the file names will
be stored in UTF-8 with no imposed length
or character restrictions.
The
-c
flag causes
mk9660
to use only file names in “8.3” form
that use digits, letters, and underscore.
File names that do not conform are changed
to
Dnnnnnn
(for directories)
or
Fnnnnnn
(for files);
a key file
_CONFORM.MAP
is created in the root
directory to ease the reverse process.
If the
-9
flag is given, the system use fields at the end of
each directory entry will be populated with
Plan directory information (owner, group, mode,
full name); this is interpreted by
9660srv.
If the
-j
flag is given, the usual directory tree is written,
but an additional tree in Microsoft Joliet format is
also added.
This second tree can contain long Unicode file names,
and can be read by
9660srv
as well as most versions of Windows
and many Unix clones.
The characters
*,
:,
;,
?,
and
\
are allowed in Plan 9 file names but not in Joliet file names;
non-conforming file names are translated
and a
_CONFORM.MAP
file written
as in the case of the
-c
option.
If the
-r
flag is given, Rock Ridge extensions are written in the
format of the system use sharing protocol;
this format provides Posix-style file metadata and is
common on Unix platforms.
The options
-c,
-9,
-j,
and
-r
may be mixed freely with the exception that
-9
and
-r
are mutually exclusive.
The
-v
flag sets the volume title;
if unspecified, the base name of
proto
is used.
The
-:
flag causes
mk9660
to replace colons in scanned file names with spaces;
this is the inverse of the map applied by
dossrv(4)
and is useful for writing Joliet CDs containing data
from FAT file systems.
The
-b
option creates a bootable CD.
Bootable CDs contain pointers to floppy images which are
loaded and booted by the BIOS.
Bootfile
should be the name of the floppy image to use;
it is a path relative to the root of the created CD.
That is, the boot floppy image must be listed in the
proto
file already:
the
-b
option just creates a pointer to it.
The
-B
option is similar to
-b
but the created CD image is marked as having a non-floppy-emulation
boot block.
This gives the program in the boot block full (ATA) LBA access
to the CD filesystem, not just the initial blocks that would fit on a floppy.
In addition to
-b
and
-B
a boot entry for UEFI systems can be created with the
-E
option and with
bootfile
pointing to a FAT image containing the contents of
the efi system partition.
The
-D
flag creates immense amounts of debugging output
on standard error.
Dump9660
is similar in specification to
mk9660
but creates and updates backup CD images in the style of
the
dump
file system
(see
fs(4)).
The dump is file-based rather than block-based:
if a file’s contents have not changed since the last
backup, only its directory entry will be rewritten.
The
-n
option specifies a time (in seconds since January 1, 1970)
to be used for naming the dump directory.
The
-m
option specifies a maximum size for the image;
if a backup would cause the image to grow larger than
maxsize,
it will not be written, and
dump9660
will exit with a non-empty status.
EXAMPLE
Create an image of the Plan 9 source tree,
including a conformant ISO-9660 directory tree,
Plan 9 extensions in the system use fields, and
a Joliet directory tree.
disk/mk9660 -9cj -s /sys/src \
-p /sys/lib/sysconfig/proto/allproto cdimage
SOURCE
/sys/src/cmd/disk/9660
SEE ALSO
9660srv
(in
dossrv(4)),
cdfs(4),
mkfs(8)