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Full Discussion: Software RAID on Linux
Operating Systems Linux Software RAID on Linux Post 302283422 by otheus on Tuesday 3rd of February 2009 10:12:14 AM
Old 02-03-2009
The FIS stuff sounds decent, then. Additional cards will get you some benefits, but for the costs, I suppose those benefits would be rather small.

One reason you might have put /tmp on its own partition is that in the older days of UNIX, lots of programs used /tmp for critical things ... like email for temporary folders, editors' swap files, and such. These days, it's hardly used, except for creating very small files by ssh, XWindows, and such. Even if /tmp does get full, it's unlikely to interfere with the system operation, whereas before, when it got full, things like editing a system file became dangerous.

The only things writing to / should be in /tmp, pretty much, so putting /var and /tmp onto the same volume isn't a bad idea -- then / can practically be read-only (unless you need to update a config file). The only hitch is mtab, the linker cache, and adjtime need to be soft-links to somewhere in /var or /tmp.
 

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DH_MOVEFILES(1) 						     Debhelper							   DH_MOVEFILES(1)

NAME
dh_movefiles - move files out of debian/tmp into subpackages SYNOPSIS
dh_movefiles [debhelperoptions] [--sourcedir=dir] [-Xitem] [file...] DESCRIPTION
dh_movefiles is a debhelper program that is responsible for moving files out of debian/tmp or some other directory and into other package build directories. This may be useful if your package has a Makefile that installs everything into debian/tmp, and you need to break that up into subpackages. Note: dh_install is a much better program, and you are recommended to use it instead of dh_movefiles. FILES
debian/package.files Lists the files to be moved into a package, separated by whitespace. The filenames listed should be relative to debian/tmp/. You can also list directory names, and the whole directory will be moved. OPTIONS
--sourcedir=dir Instead of moving files out of debian/tmp (the default), this option makes it move files out of some other directory. Since the entire contents of the sourcedir is moved, specifying something like --sourcedir=/ is very unsafe, so to prevent mistakes, the sourcedir must be a relative filename; it cannot begin with a `/'. -Xitem, --exclude=item Exclude files that contain item anywhere in their filename from being installed. file ... Lists files to move. The filenames listed should be relative to debian/tmp/. You can also list directory names, and the whole directory will be moved. It is an error to list files here unless you use -p, -i, or -a to tell dh_movefiles which subpackage to put them in. NOTES
Note that files are always moved out of debian/tmp by default (even if you have instructed debhelper to use a compatibility level higher than one, which does not otherwise use debian/tmp for anything at all). The idea behind this is that the package that is being built can be told to install into debian/tmp, and then files can be moved by dh_movefiles from that directory. Any files or directories that remain are ignored, and get deleted by dh_clean later. SEE ALSO
debhelper(7) This program is a part of debhelper. AUTHOR
Joey Hess <joeyh@debian.org> 11.1.6ubuntu2 2018-05-10 DH_MOVEFILES(1)
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