Date: Sat, 19 Jan 2008 22:31:46 -0500 From: Bob Johnson <bob89@bobj.org> To: Joerg Schilling <Joerg.Schilling@fokus.fraunhofer.de> Cc: questions@freebsd.org Subject: Re: Wrong times written by mkisofs? Message-ID: <200801192231.46700.bob89@bobj.org> In-Reply-To: <47927842.9laQQcD/42mYWXA0%Joerg.Schilling@fokus.fraunhofer.de> References: <47927842.9laQQcD/42mYWXA0%Joerg.Schilling@fokus.fraunhofer.de>
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On Saturday 19 January 2008 05:22:58 pm you wrote: > > Irecently built a CD of images to give to a friend. I noticed the > > timestamps displayed when I list the CD contents are five hours earlier > > than they should be. Five hours matches my GMT offset. This is a > > dual-boot system with Win XP, so the hardware clock is set to local time. > > > > E.g. a file on my hard drive has a correct timestamp > > -rw------- 1 bobo bobo 2246671 Jan 19 12:22 IMG_0660_080115_2348.JPG > > > > while the same file on the resulting CD looks like > > -rw------- 1 bobo bobo 2246671 Jan 19 07:22 IMG_0660_080115_2348.JPG > > > > The "date" command returns the correct local time. > > > > Did I do something incorrectly, or is this a bug in mkisofs? It appears > > to me that mkisofs decided to correct for GMT offset when it shouldn't > > have. > > > > Let me asume you use a _recent_ mkisofs and set up a correct timezone... > [...] > > What do you get from "mkisofs -version"? mkisofs 2.01 (i386-unknown-freebsd6.2) > What timezone do you have (how many hours from GMT and which location)? U.S. Eastern Standard Time (EST = GMT-5) > What do you have in the TZ= variable? It seems to be empty. > What do you see with "TZ=GMT ls -l ToJoe"? # TZ=GMT ls -l /mnt total 62113 -rw------- 1 bobj bobj 2246671 Jan 19 12:22 IMG_0660_080115_2348.JPG -rw------- 1 bobj bobj 3346787 Jan 19 12:22 IMG_0661_080116_0524.JPG -rw------- 1 bobj bobj 3623969 Jan 19 12:22 IMG_0662_080116_0525.JPG -rw------- 1 bobj bobj 3966310 Jan 19 12:22 IMG_0663_080116_0526.JPG -rw------- 1 bobj bobj 3971338 Jan 19 12:22 IMG_0664_080116_0526.JPG -rw------- 1 bobj bobj 3946837 Jan 19 12:22 IMG_0665_080116_0528.JPG -rw------- 1 bobj bobj 3873753 Jan 19 12:22 IMG_0666_080116_0528.JPG -rw------- 1 bobj bobj 3832501 Jan 19 12:22 IMG_0667_080116_0529.JPG -rw------- 1 bobj bobj 3854064 Jan 19 12:22 IMG_0668_080116_0531.JPG -rw------- 1 bobj bobj 3849156 Jan 19 12:22 IMG_0669_080116_0532.JPG -rw------- 1 bobj bobj 3868314 Jan 19 12:23 IMG_0670_080116_0533.JPG -rw------- 1 bobj bobj 3901654 Jan 19 12:23 IMG_0671_080116_0534.JPG -rw------- 1 bobj bobj 3851665 Jan 19 12:23 IMG_0672_080116_0537.JPG -rw------- 1 bobj bobj 3850832 Jan 19 12:23 IMG_0673_080116_0538.JPG -rw------- 1 bobj bobj 3876448 Jan 19 12:23 IMG_0674_080116_0542.JPG -rw------- 1 bobj bobj 3866105 Jan 19 12:23 IMG_0675_080116_0543.JPG -rw------- 1 bobj bobj 3881576 Jan 19 12:23 IMG_0676_080116_0543.JPG These times are the correct LOCAL time, not GMT. The following are five hours off: # TZ=EST ls -l /mnt total 62113 -rw------- 1 bobj bobj 2246671 Jan 19 07:22 IMG_0660_080115_2348.JPG -rw------- 1 bobj bobj 3346787 Jan 19 07:22 IMG_0661_080116_0524.JPG -rw------- 1 bobj bobj 3623969 Jan 19 07:22 IMG_0662_080116_0525.JPG -rw------- 1 bobj bobj 3966310 Jan 19 07:22 IMG_0663_080116_0526.JPG -rw------- 1 bobj bobj 3971338 Jan 19 07:22 IMG_0664_080116_0526.JPG -rw------- 1 bobj bobj 3946837 Jan 19 07:22 IMG_0665_080116_0528.JPG -rw------- 1 bobj bobj 3873753 Jan 19 07:22 IMG_0666_080116_0528.JPG -rw------- 1 bobj bobj 3832501 Jan 19 07:22 IMG_0667_080116_0529.JPG -rw------- 1 bobj bobj 3854064 Jan 19 07:22 IMG_0668_080116_0531.JPG -rw------- 1 bobj bobj 3849156 Jan 19 07:22 IMG_0669_080116_0532.JPG -rw------- 1 bobj bobj 3868314 Jan 19 07:23 IMG_0670_080116_0533.JPG -rw------- 1 bobj bobj 3901654 Jan 19 07:23 IMG_0671_080116_0534.JPG -rw------- 1 bobj bobj 3851665 Jan 19 07:23 IMG_0672_080116_0537.JPG -rw------- 1 bobj bobj 3850832 Jan 19 07:23 IMG_0673_080116_0538.JPG -rw------- 1 bobj bobj 3876448 Jan 19 07:23 IMG_0674_080116_0542.JPG -rw------- 1 bobj bobj 3866105 Jan 19 07:23 IMG_0675_080116_0543.JPG -rw------- 1 bobj bobj 3881576 Jan 19 07:23 IMG_0676_080116_0543.JPG I thought this system had been updated recently, but: # uname -a FreeBSD sniffles.bobj.org 6.2-RELEASE-p4 FreeBSD 6.2-RELEASE-p4 #0: Thu Apr 26 17:40:53 UTC 2007 root@i386-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC i386 so for my next trick, I will at least get it up to the lastest binary patch level, and try again. - Bob
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