Red Hat Bugzilla – Bug 131413
fstab-sync should not create new fstab file in /tmp
Last modified: 2013-03-05 22:41:25 EST
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User-Agent: Mozilla/5.0 (compatible; Konqueror/3.3; Linux) (KHTML, like Gecko)
Description of problem:
fstab-sync creates a new file under /tmp. This causes at least two problems.
One problem is that if /tmp and /etc are not on the same file system then the process of moving the temporary file to /etc has race conditions that could potentially leave a machine unbootable if a power failure occurs at the wrong time.
Another problem is that in SE Linux a file created in /tmp gets the type tmp_t by default. If /etc/fstab gets this type then it can't be used by most programs (the system may fail to boot).
Version-Release number of selected component (if applicable):
Steps to Reproduce:
The solution is to use a temporary file name /etc/fstab.new or similar.
This have been addressed in bug #131187; the fix is in Rawhide
(hal-0.2.97.cvs20040901-1). I have some concerns on how to properly
update files atomically if relabeling is required; expressed here:
comments, suggestions are welcome.
*** This bug has been marked as a duplicate of 131187 ***
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.