misc/178113: tmpmfs rc.conf setting ignored
rsitze at gmail.com
Wed Apr 24 18:00:00 UTC 2013
>Synopsis: tmpmfs rc.conf setting ignored
>Arrival-Date: Wed Apr 24 18:00:00 UTC 2013
FreeBSD graphite 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243826: Tue Dec 4 06:55:39 UTC 2012 root at obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
The system is being booted from a MD (MemDisk), i.e. from a CD ISO image, where:
* rc.conf contains: tmpmfs="AUTO" or "YES"
* the root file system is read-only
* the root file system contains /tmp
In this situation a new readable /tmp is not created.
This works with BSD 7.4, but no longer in 9.1
The error is in /etc/rc.d/tmp, where a new function 'mount_tmpmfs' fails to mount the desired device because a test to see if /tmp is not already on a 'md' device fails.
The obvious solution is to remove the check - but I presume it was added for a reason. So the "correct" solution is not so trivial - would need to check that '/tmp' was on the same device as '/' ?
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