In message <16261.27258.563735.274938_at_canoe.dclg.ca>, David Gilbert writes: >But filesystems also have persistence. In the trivial case, the >persistence of the object (say ... a disk) preserved the filesystems >node. But if I walk into /dev and change the permissions on a node, >this persists only until the next reboot. Rubbish! When did you last see your changes to /proc survive a reboot ? What you call a "filesystem" is really a name-resolution facility which translates what you think of as a "filename" into a particular kernel object. That kernel object can be a file on a persistent media, a file on a non-persistent media, a socket, a FIFO, a device, a process and almost any oddball thing you can can come up with. Persistence is a very optional property and it has nothing to do with the object living in the filesystem naming space. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk_at_FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.Received on Thu Oct 09 2003 - 06:29:24 UTC
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