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MOUNT_CD9660(8) System Manager's Manual MOUNT_CD9660(8)

mount_cd9660 — mount an ISO-9660 file system

mount_cd9660 [-o options] special node

The mount_cd9660 command attaches the ISO-9660 file system residing on the device special to the global file system namespace at the location indicated by node. Both special and node are converted to absolute paths before use.

The options are as follows:

Options are specified with a -o flag followed by a comma separated string of options. Besides options mentioned in mount(8) man page, following cd9660-specific options are supported:
Enable the use of extended attributes.
Do not strip version numbers on files and leave the case of the filename alone. (By default, uppercase characters are translated to lowercase, and if there are files with different version numbers on the disk, only the last one will be listed.)

In either case, files may be opened without giving a version number, in which case you get the last one, or by explicitly stating a version number (albeit it's quite difficult to know it, if you are not using the gens option), in which case you get the specified version.

A synonym for nomaplcase.
Do not make use of Joliet extensions for long filenames which may be present in the file system.

Interpretation of Joliet extensions is enabled by default, Unicode file names are encoded into UTF-8.

File names on cd9660 cdrom without Rock Ridge extension present should be uppercase only. By default, cd9660 recodes file names read from a non-Rock Ridge disk to all lowercase characters. nomaplcase turns off this mapping.
Do not use any Rockridge extensions included in the file system.
Same as norrip. For compatibility with Solaris only.
Makes all lookups case-insensitive even for CD-ROMs with Rock-Ridge extensions (for Rock-Ridge, default is case-sensitive lookup).

For compatibility with previous releases, following obsolete flags are still recognized:

Same as -o extatt.
Same as -o nojoliet.
Same as -o gens.
Same as -o norrip.

mount(2), unmount(2), fstab(5), mount(8), mscdlabel(8), vndconfig(8)

The mount_cd9660 utility first appeared 4.4BSD. Support for Joliet file system appeared in NetBSD 1.4. Options nomaplcase and rrcaseins were added in NetBSD 1.5. UTF-8 encoding of Unicode file names for Joliet file systems was added in NetBSD 3.0.

For Joliet file systems, the Unicode file names used to be filtered to ISO-8859-1 character set. This changed in NetBSD 3.0, file names are encoded into UTF-8 now by default. The behaviour is controllable by the sysctl; the former behaviour is available by setting it to 0.

For some cdroms the information in the Rock Ridge extension is wrong and the cdrom needs to be mounted with "norrip". A sign that something is wrong is that the stat(2) system call returns EBADF causing, e.g., "ls -l" to fail with "Bad file descriptor".

The cd9660 file system does not support the original "High Sierra" ("CDROM001") format.

POSIX device node mapping is currently not supported.

Version numbers are not stripped if Rockridge extensions are in use. In this case, you have to use the original name of the file as recorded on disk, i.e. use uppercase and append the version number to the file.

There is no ECMA support.

June 30, 2018 NetBSD-9.2