On Wed, 2009-05-06 at 02:05 +0200, Holger Parplies wrote: > you can't really stream to DVD, and the pool doesn't stream well in any case. > > > Well, in my case, I simply want everything to backup to a DVD. In > > detail, I want to run a live-cd to RAM perhaps from a DVD drive (but > > more than likely the CD drive); afterward, I want the DVD pool to > > intergrate back into the system. And if anything in the system has > > changed, I'll have shutdown scripts or some manual control that tells > > backuppc to check if something has changed and then add things to the > > pool, which exists on the DVD. > > That doesn't sound like backups, that sounds like persisting snapshots of > system state with a DVD instead of a HDD (however you imagine that should > work). I presume you mean a writable variant, not DVD-ROM ...
I wouldn't want a snapshot of the whole system. I would want a snapshot of the most current state. Well, BackupPC would be directed to only take notice of what I designate. The reason I'm liking BackupPC is because it would only record to the pool files that have changed. And I find that attribute to allow me to not quickly and completely fill the DVD*R*. The thing that would more than likely be constant is the Live-CD. But I want the pool to be on the DVD*R*. If I remember correctly, BackupPC finds a way to check if files have been modified or changed from the previous archived file that exists in the pool. I want that same thing to occur but with a DVD*R*. I assume checksum comparisons might slow down archiving a bit. I'm not too knowledgeable about checksums and processing speed. In my mind, I start a computer, the Live-CD spins; afterward, it boots to RAM. From there, an rc.local script executes to configure BackupPC to use the DVD*R* variant media as the pool. I would more than likely decide to also configure rc.local to restore the most recent filesystem state of things archived to / from BackupPC. So, if I start with a generic, custom Live-CD of Ubuntu, rc.local would mkdir /research and /office. And then the pool archives that exist on the BackupPC DVD*R* replenish the files that previously existed in those directories to their respective areas. And if one day I decide to type a report called ptss-iran-soldiers.doc and put it in /research, during shutdown BackupPC will take that file, notice it doesn't exist in the previous backup state nor pool, put it in the pool and ignore files in /* that already exist in the pool based on checksum, and generate a new log of current files that exist that can be seen in the CGI website. The CGI website would be useful for looking through past archived files that exist in the pool. If I decide I want a previous archive of a file, let's say it has some kind of bibliographic source that I accidentally deleted from the current one that shows in /*, then I can view it in the CGI website and decide to manually restore it. > > I talked to someone about putting it on a USB, and that's a nice, > > because it can be put onto a mount point. But how would I do something > > similar with a DVD? > > You wouldn't. I want to... is this really, really not possible with a DVD*R*? > P.S.: I believe you've misspellt your name. Thanks for the catch and your words. ------------------------------------------------------------------------------ The NEW KODAK i700 Series Scanners deliver under ANY circumstances! Your production scanning environment may not be a perfect world - but thanks to Kodak, there's a perfect scanner to get the job done! With the NEW KODAK i700 Series Scanner you'll get full speed at 300 dpi even with all image processing features enabled. http://p.sf.net/sfu/kodak-com _______________________________________________ BackupPC-users mailing list [email protected] List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
