Linked by Thom Holwerda on Mon 30th Jan 2012 20:39 UTC
General Unix Finally something really interesting to talk about. If you've used UNIX or any of its derivatives, you've probably wondered why there's /bin, /sbin, /usr/bin, /usr/sbin in the file system. You may even have a rationalisation for the existence of each and every one of these directories. The thing is, though - all these rationalisations were thought up after these directories were created. As it turns out, the real reasoning is pretty damn straightforward.
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RE[2]: why not / instead of /usr
by phoenix on Mon 30th Jan 2012 21:32 UTC in reply to "RE: why not / instead of /usr"
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Uhm, why would snapshotting / be any harder than snapshotting /usr? Snapshots happen at the filesystem level, and if everything else is a separate filesystem (/home, /var, yadda yadda) then / is a filesystem all to itself ... so why would snapshotting it be hard?

And if you want to talk about polluting the / directory, have a look at all the virtual filesystems that need mountpoints. Just have a look at the output of "mount" on a Linux system these days. There's a good 8 or so virtual filesystems that all need mountpoints in / (/proc, /sys, /dev, various tmpfs, etc).

Edited 2012-01-30 21:33 UTC

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