On 03/29/2012 14:58, David Wolfskill wrote:
On Thu, Mar 29, 2012 at 02:50:00PM -0500, Eric van Gyzen wrote:
...
However, if you always want to use tmpfs instead of stable storage,
please do not. Some people expect /tmp to be persistent. This is why
/etc/defaults/rc.conf has clear_tmp_enable="NO". Changing this would
break the POLA.
...
Errr... I'm not sure why folks might have that misguided expectation;
Because that's how the default installation has behaved for a long time.
I'm not saying this expectation is /wise/; I'm just saying some people
have formed that expectation by observing the behavior of the default
system, and they would be astonished by this change.
from hier(7):
/tmp/ temporary files that are not guaranteed to persist across sys-
tem reboots
Foplks are welcome to do whatever they wish with their own machines,
but the FreeBSD default is as above.
Respectfully, no. The default is to store /tmp in UFS, either in its
own partition (with Auto Defaults) or in / (if no partition was created
for it), and to refrain from clearing it at boot. Thus, although /tmp
is not guaranteed to persist in theory, it is rather persistent in practice.
My only point is: carefully consider the change in behavior of the
default installation before breaking the POLA.
Eric
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