rsync backup

[Chris]

On Sat, 21 Nov 2009 16:59:57 -0700
"Karl F. Larsen" <klarsen1 at gmail.com> wrote:

> don fisher wrote:
> > Karl F. Larsen wrote:
> >> don fisher wrote:
> >>> don fisher wrote:
> >>>> Karl Larsen wrote:
> >>>>> 	I have lost the little thing I used to call for a
> >>>>> backup of my linux. I was using rsync -avg /  exempt/media
> >>>>> exempt/dev  . .. /media/disk-1, or something like that.
> >>>>>
> >>>>> 	I have looked at man rsync which is confusing, and
> >>>>> tried Google but their info is trivial.
> >>>>>
> >>>>> 	Is anyone using something like this?
> >>>>>
> >>>>> Karl
> >>>>>
> >>>>>
> >>>>>
> >>>> I have the following in a a script that backs up the entire disk
> >>>> to a 500GB usb drive that I mount on /backup.
> >> 	Hi Don, this is almost exactly what I want to do.
> >>
> >>>> sudo nice --adjustment=10 rsync -rlpgouvtS --progress -v
> >> What does "sudo nice --adjustment=10" do? I have never tried 
> >> sudo nice, ever.
> >>
> >>
> >>
> >>>> --delete --modify-window=1200 
> >> 	What does "--progress -v << --delete --modify-window=1200"
> >> do?
> >>
> >>>> --exclude-from=/home/your_name/rsync-backup_exclude / /backup
> >>>>
> >>>> The rsync-backup_exclude fike looks like:
> >>>> /proc/*
> >>>> /sys/*
> >>>> /dev/*
> >>>> /lost+found/*
> >>>> /var/log/lastlog
> >>>> /swapfile
> >>>> /usr2/*
> >>>> /usr3/*
> >>>> /tmp/*
> >>>> /net/*
> >>>> /mnt/*
> >>>> /cdrom/*
> >>>>
> >> Why do most entries end with /* but a few just end?
> >>
> >>
> >>>> You probably don't have all of the same mount points that I do,
> >>>> so edit to taste.
> >>>>
> >>>> don
> >>> Sorry, but /backup is also in the rsync-backup_exclude file.
> >> 	I was going to say what happened to the possible endless
> >> loop?
> >>
> >>
> >> 	I will edit to taste and fool around. I did a pretty good 
> >> backup with rdiff-backup which I think uses rsync, but there 
> >> where a lot of errors listed.
> >>
> >>
> >> 73 Karl
> >>
> >>> don
> >>
> > Karl,
> > 
> > sudo is required to process the system files. This command
> > preserves the owner and group, and also the creation and
> > modification times. Without sudo you can't modify another persons
> > file stats.
> > 
> > nice --adjustment=10 is really just nice, since the default level
> > is 10. It lowers the priority so that if I am trying to do
> > something else I get a few cycles.
> > 
> > --progress -v shows the percentage transfer of each file.
> > 
> > --delete deletes files that don't exist on the source. This command
> > will update an existing backup only transferring the changes and
> > removing files that no longer exist.
> > 
> > --delete --modify-window=1200 sets a window on the time stamp so it
> > does not try and delete files that are really the same. Not sure
> > this is still required.
> > 
> > Most of the -rlpgouvtS switches are explained below. I have this
> > comment at the top of my script just encase I forget:-)
> > 
> > # -r recursive - copy directories recursively
> > # -l copy symlinks as symlinks
> > # -p preserve permissions
> > # -t preserve times
> > # -g preserve group
> > # -o preserve owner (root only)
> > # -D preserve device and special files.
> > 
> > I am a not a good emailer, so if there are omissions please get
> > back.
> > 
> > don
> > 
> 
> 	Well I quit! At least for awhile. I tried rdiff-backup and it 
> does write the files to my USB hard drive. All rsync help 
> either does not run, or it runs but does not write a thing on 
> my USB hard drive.
> 
> 73 Karl
> 
> 

Ahh - so are you going to use rdiff-backup? It's pretty simple and
works for my needs. Figured you might want to have a look at it.

-- 
Best regards,

Chris

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