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ru.unix
- RU.UNIX ----------------------------------------------------------------------
From : Max Khon 2:5000/79 26 Oct 2000 17:09:52
To : Olli Artemjev
Subject : ?: статическая сборка в chroot - как проще и лучше?
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25 Oct 00 09:24, Olli Artemjev wrote to Max Khon:
MK>> а еще грят nullfs наконец-то починили в -current (точнее довели
MK>> до более-менее юзабельного состояния :)
OA> А что за nullfs? Что умеет и для чего нужен, где есть?
DESCRIPTION
The mount_null command creates a null layer, duplicating a sub-tree of
the file system name space under another part of the global file system
namespace. This allows existing files and directories to be accessed us-
ing a different pathname.
The primary differences between a virtual copy of the filesystem and a
symbolic link are that getcwd(3) functions correctly in the virtual copy,
and that other filesystems may be mounted on the virtual copy without af-
fecting the original. A different device number for the virtual copy is
returned by stat(2), but in other respects it is indistinguishable from
the original.
The mount_null filesystem differs from a traditional loopback file system
in two respects: it is implemented using a stackable layers techniques,
and it's ``null-node'' s stack above all lower-layer vnodes, not just
over directory vnodes.
/fjoe
--- Msged/BSD TE 06 (pre)
* Origin: the number of the beast is vi vi vi (2:5000/79@fidonet)
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