Hello, I have been using mondorescue to backup to dvd for several months now without any problems. Since upgrading to Centos 4.4, I now receive a few errors. The errors are for files in /var/named/chroot/proc. I guess these files change so when I do a differntial backup they aren't there and result in errors. (Never got any errors before and I think these files were there in 4.3) If I exclude the files from the backup, no errors. My question is what, if any problems would I run into not backing these files up and having to do a complete system restore? TIA, Eddie
Thomas E Dukes wrote:> Hello, > > I have been using mondorescue to backup to dvd for several months now > without any problems. > > Since upgrading to Centos 4.4, I now receive a few errors. The errors are > for files in /var/named/chroot/proc. I guess these files change so when I > do a differntial backup they aren't there and result in errors. (Never got > any errors before and I think these files were there in 4.3) If I exclude > the files from the backup, no errors.What kind errors?> > My question is what, if any problems would I run into not backing these > files up and having to do a complete system restore?That is more of a question for mondorescue list...
Thomas E Dukes wrote:> Hello, > > I have been using mondorescue to backup to dvd for several months now > without any problems. > > Since upgrading to Centos 4.4, I now receive a few errors. The errors are > for files in /var/named/chroot/proc. I guess these files change so when I > do a differntial backup they aren't there and result in errors. (Never got > any errors before and I think these files were there in 4.3) If I exclude > the files from the backup, no errors. > > My question is what, if any problems would I run into not backing these > files up and having to do a complete system restore? > > TIA, > > EddieYou shouldn't run into any problems really since files within "proc" aren't really there to begin with; they're resident in memory only and disappear when the machine shuts down or reboots. -- Mark "If you have found a very wise man, then you've found a man that at one time was an idiot and lived long enough to learn from his own stupidity." =============================================Powered by CentOS4 (RHEL4)
You don't even want to try and back up the proc fs. Have a look at the size of /proc/kcore. If there is an option to not cross filesystems then turn that on (like tar -l or find -xdev). Failing that, use mount to find everywhere that proc and sysfs is mounted and exclude them manually. John. Thomas E Dukes wrote:> Hello, > > I have been using mondorescue to backup to dvd for several months now > without any problems. > > Since upgrading to Centos 4.4, I now receive a few errors. The errors are > for files in /var/named/chroot/proc. I guess these files change so when I > do a differntial backup they aren't there and result in errors. (Never got > any errors before and I think these files were there in 4.3) If I exclude > the files from the backup, no errors. > > My question is what, if any problems would I run into not backing these > files up and having to do a complete system restore? > > TIA, > > Eddie > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > >-- John Newbigin Computer Systems Officer Faculty of Information and Communication Technologies Swinburne University of Technology Melbourne, Australia http://www.ict.swin.edu.au/staff/jnewbigin
Thomas E Dukes wrote:> Hello, > > I have been using mondorescue to backup to dvd for several months now > without any problems. > > Since upgrading to Centos 4.4, I now receive a few errors. The errors are > for files in /var/named/chroot/proc. I guess these files change so when I > do a differntial backup they aren't there and result in errors. (Never got > any errors before and I think these files were there in 4.3) If I exclude > the files from the backup, no errors. > > My question is what, if any problems would I run into not backing these > files up and having to do a complete system restore?Take care with what you backup; there is _no_ point in backing up any of the kernel's pseudo-filesystems including proc. Also, take care using mondo; the last two times I looked at it, the code was horribly trusting of information the user provided; the first time it could easily be provoked to SEGV errors. The second time, I contented myself with picking out some of the source code that I thought looked a but sus (I'm not much of a C programmer, and at my age I don't care to add it to my resume). People much more export than I (including Debian/Ubuntu developers) agreed with my appraisal. Worse, when I took it up with the author the first time, he denied flatly there was a problem, and claimed "It's not a backup tool, it's a disaster-recovery tool." It's a shame, because there's much to commend the basic idea. Take a look at DAR, it provides similar capability. It can be found at sf.net, and probably one or more of the extras repos. If there is a fan of mondo here who's a capable C programmer and who understands secure programming, I suggest you audit the code. Mondo needs it. -- Cheers John -- spambait 1aaaaaaa at coco.merseine.nu Z1aaaaaaa at coco.merseine.nu Tourist pics http://portgeographe.environmentaldisasters.cds.merseine.nu/ Please do not reply off-list