Subject: kern/21315: File modification time on LFS wrong; at least when using pax
To: None <gnats-bugs@gnats.netbsd.org>
From: Bjoern Labitzke <bcsl@gmx.de>
List: netbsd-bugs
Date: 04/25/2003 07:04:16
>Number: 21315
>Category: kern
>Synopsis: File modification time on LFS wrong; at least when using pax
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Fri Apr 25 05:05:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator: Bjoern Labitzke
>Release: NetBSD 1.6R (kernel and userland from approx. 23.-24.04.2003)
>Organization:
Bjoern Labitzke <bcsl@gmx.de>
Use GPG! (Don't you use envelopes for your letters?)
>Environment:
System: NetBSD labitzke.homeunix.org 1.6R NetBSD 1.6R (LABITZKE) #1058: Thu Apr 24 10:09:40 CEST 2003 hermit@labitzke.homeunix.org:/usr/local/junk/build1/kernels/LABITZKE i386
Architecture: i386
Machine: i386
>Description:
When copying files with pax to a LFS partition, the modification times
get set to the current time, even if they should be kept.
$ cd /usr/cvs.netbsd
$ ls -lA localsrc/cvstest
total 14
drwxr-xr-x 3 hermit staff 512 Feb 26 22:35 .
drwxr-xr-x 23 hermit staff 1024 Apr 25 06:35 ..
drwxr-xr-x 2 hermit staff 512 Feb 26 22:35 CVS
-rw-r--r-- 1 hermit staff 80 Oct 3 2002 README
-rw-r--r-- 1 hermit staff 25 Oct 3 2002 bar.c
-rw-r--r-- 1 hermit staff 26 Oct 3 2002 baz.c
-rw-r--r-- 1 hermit staff 127 Oct 3 2002 foo.c
Example 1: FFS to FFS copy
$ sudo pax -r -w -pe localsrc /tmp/
$ ls -lA /tmp/localsrc/cvstest
total 14
drwxr-xr-x 3 hermit staff 512 Feb 26 22:35 .
drwxr-xr-x 23 hermit staff 512 Apr 25 06:35 ..
drwxr-xr-x 2 hermit staff 512 Feb 26 22:35 CVS
-rw-r--r-- 1 hermit staff 80 Oct 3 2002 README
-rw-r--r-- 1 hermit staff 25 Oct 3 2002 bar.c
-rw-r--r-- 1 hermit staff 26 Oct 3 2002 baz.c
-rw-r--r-- 1 hermit staff 127 Oct 3 2002 foo.c
Example 2: FFS to LFS copy
$ sudo pax -r -w -pe localsrc /usr/local/temp/cvs.netbsd/
$ ls -lA /usr/local/temp/cvs.netbsd/localsrc/cvstest
total 14
drwxr-xr-x 3 hermit staff 512 Feb 26 22:35 .
drwxr-xr-x 23 hermit staff 512 Apr 25 06:35 ..
drwxr-xr-x 2 hermit staff 512 Feb 26 22:35 CVS
-rw-r--r-- 1 hermit staff 80 Apr 25 06:40 README
-rw-r--r-- 1 hermit staff 25 Apr 25 06:40 bar.c
-rw-r--r-- 1 hermit staff 26 Apr 25 06:40 baz.c
-rw-r--r-- 1 hermit staff 127 Apr 25 06:40 foo.c
But (on the LFS):
$ cd /usr/local/temp/cvs.netbsd/localsrc/cvstest
$ touch -t 01011300 bar.c
$ ls -lA
total 14
drwxr-xr-x 3 hermit staff 512 Feb 26 22:35 .
drwxr-xr-x 23 hermit staff 512 Apr 25 06:35 ..
drwxr-xr-x 2 hermit staff 512 Feb 26 22:35 CVS
-rw-r--r-- 1 hermit staff 80 Apr 25 06:40 README
-rw-r--r-- 1 hermit staff 25 Jan 1 13:00 bar.c
-rw-r--r-- 1 hermit staff 26 Apr 25 06:40 baz.c
-rw-r--r-- 1 hermit staff 127 Apr 25 06:40 foo.c
>How-To-Repeat:
Copy something from FFS to LFS with pax -r -w -pe and find the file
modification times of the targets set to the time of the copy instead
of the times from the sources.
>Fix:
Sorry, no idea. But ISTR that I used this command quite some time ago
to do exactly what I did now and it worked. (Quite some time is
something at least half a year ago, maximum two years ago.)
>Release-Note:
>Audit-Trail:
>Unformatted: