MK9660(1)

💿 MK9660(1) — create an ISO-9660 CD image 💿

okay bestie, welcome to the General Commands Manual page for MK9660(1) — we're making ISO-9660 CD images and dump-style backup CD images, and it's giving vintage optical-disc main character energy. ✨

✨ NAME ✨

• dump9660, mk9660 — create an ISO-9660 CD image

📜 SYNOPSIS 📜

mk9660 [ -:D ] [ -9cjr ] [ -b bootfile ] [ -p proto ] [ -s src ] [ -v volume ] image

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, /proto/allproto) from the file tree src (by default, the current directory). The proto file is formatted as described in proto(3).

In the synopsis, those show up as -p proto and -s src — cute little name tags, honestly. 🎀

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.

Here's the flag tea, one by one:

• -p proto, -s src — the proto file and the source file tree; defaults are /proto/allproto and the current directory, respectively. ✨
• -c — makes mk9660 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.
• -9 — if 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.
• -j — if 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.
• -r — if 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.

mix-and-match tea: the options -c, -9, -j, and -r may be mixed freely with the exception that -9 and -r are mutually exclusive. 🚨

• -v volume — sets the volume title; if unspecified, the base name of proto is used.
• -: — causes mk9660 to replace colons in scanned file names with spaces; this is the inverse of the map applied by Plan 9's dossrv(4) and is useful for writing Joliet CDs containing data from FAT file systems.
• -b bootfile — 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 flag just creates a pointer to it.
• -D — 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 Plan 9's 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.

• -n now — specifies a time (in seconds since January 1, 1970) to be used for naming the dump directory.
• -m maxsize — 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.

mk9660 -9cj -s /n/bootes -p srcproto cdimage

📁 SOURCE 📁

• /src/cmd/9660

👀 SEE ALSO 👀

• proto(3) — go read it for the proto file format, bestie. 🫶

🎀 annnnnd that's the whole MK9660(1) page, bestie — the footer is literally just the manual name, no extra version/date drama, so we're done. stay iconic 💖🔥🎀