bin/112552: binary upgrade from CD stomps /etc/named/named.conf
Vivek Khera
vivek at khera.org
Wed May 9 19:40:03 UTC 2007
>Number: 112552
>Category: bin
>Synopsis: binary upgrade from CD stomps /etc/named/named.conf
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed May 09 19:40:02 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator: Vivek Khera
>Release: FreeBSD 6.2-RELEASE amd64
>Organization:
>Environment:
System: FreeBSD yertle.int.kcilink.com 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Fri Jan 12 08:32:24 UTC 2007 root at portnoy.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
>Description:
I upgraded my 6.2-PRE system (installed via buildworld) using the 6.2-REL CD.
Everything went exceptionally well, except when all was said and done,
/etc/namedb/named.conf was stomped over by the stock system version. The
logic that preserves the contents of /etc doens't seem to chase after the
symlinks that point /etc/namedb over to /var directory.
It was trivial to restore for me since I took an ffs_mksnap snapshot of each
file system before upgrading :-) Nonetheless it was very tricky to figure out
why DNS wasn't working quite right on my network.
>How-To-Repeat:
perform binary upgrade from the 6.2 CD.
>Fix:
teach the /etc save/restore routines about chasing symlinks.
>Release-Note:
>Audit-Trail:
>Unformatted:
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