NAMESPACE(5) File Formats NAMESPACE(5)
namespace - map GS/OS partitions to GNO mount points
The namespace file is parsed by the GNO kernel when the kernel is boot-
ing. The mappings in this file allow the kernel to provide a contingu-
ous hierarchy of directories without requiring those directories to be
on the same physical disk partition. This is similar to the UNIX con-
cept of mount points.
The format of the namespace file is:
Comments are not currently allowed in the file. It is critical that
only colons be used as pathname delimiters in this file, and that no
trailing colons are specified.
In this abbreviated example, the /usr directory hierarchy exists on a
different physical partition than do /bin and /dev:
There is currently a limit of about 20 entries in the namespace file.
Whitespace can appear in the names of neither the mount point nor the
directory being mounted.
Only a single directory component can be specified for the mount point.
Therefore, the following would be an illegal entry:
One would expect that files existing in the same directory as the GNO
kernel binary could be referenced relative to the root partition (for
example, referencing the initrc file as /initrc). This is not permit-
ted; such a reference will cause the relevent system call to fail with
ENOENT. Similarily, one cannot refer to the directory in which the
kernel resides as /).
The specified mount points cannot currently be used as home directo-
ries. For example, root's home directory cannot be /root, where /root
is defined in /etc/namespace as:
The namespace facility first appeared in GNO v2.0.
GNO 7 February 1999 NAMESPACE(5)
Man(1) output converted with