maybe this could also be useful: https://github.com/RyanHow/block2file
> Gesendet: Sonntag, 30. Dezember 2018 um 22:52 Uhr > Von: "Rolf Fokkens via rsync" <rsync@lists.samba.org> > An: rsync@lists.samba.org > Betreff: Re: Aw: Re: rsync remote raw block device with --inplace > > It was broucht up before indeed: > https://lists.samba.org/archive/rsync/2012-June/027680.html > > On 12/30/18 9:50 PM, devzero--- via rsync wrote: > >> There have been addons to rsync in the past to do that but rsync really > >> isn't the correct tool for the job. > > why not correct tool ? > > > > if rsync can greatly keep two large files in sync between source and > > destination > > (using --inplace), why should it (generally spoken) not also be used to > > keep two > > blockdevices in sync ? > > > > maybe these links are interesting in that context: > > > > https://lists.samba.org/archive/rsync/2010-June/025164.html > > > > https://github.com/dop251/diskrsync > > > > roland > > > >> Gesendet: Sonntag, 30. Dezember 2018 um 19:53 Uhr > >> Von: "Kevin Korb via rsync" <rsync@lists.samba.org> > >> An: rsync@lists.samba.org > >> Betreff: Re: rsync remote raw block device with --inplace > >> > >> There have been addons to rsync in the past to do that but rsync really > >> isn't the correct tool for the job. Neither is dd. > >> > >> The right tool is something that understands the filesystem within the > >> block device such as ntfsclone (what I use) or partimage (if you have > >> ever used Clonezilla this is what it uses). These will know how to skip > >> all the empty parts of the filesystem and will still be capable of > >> restoring a complete image in a bare metal restore. You can still use > >> dd to snag a copy of the MBR since that is outside of any filesystems. > >> > >> Also, if you do have to resort to a plain image use ddrescue instead of > >> dd. It has a status screen and it can resume as long as you used a log > >> file when you ran it. > >> > >> On 12/30/18 1:45 PM, Steve Newcomb via rsync wrote: > >>> It would be very nice to be able to rsync the raw data content of, e.g., > >>> a non-mounted disk partition, particularly in combination with --inplace. > >>> > >>> Our reality: several dual-boot machines running Windows during the day > >>> and Linux at night, during backups. Windows is very tedious and iffy to > >>> re-reinstall without a raw disk image to start from. Disks fail, and > >>> the ensuing downtime must be minimized. > >>> > >>> We're using dd for this. Most of the nightly work is redundant and > >>> wasteful of elapsed time and storage. Storage is cheap, but it's not > >>> *that* cheap. Elapsed time is priceless. > >>> > >>> Rsync refuses to back up raw devices, and even raw character devices, > >>> with the message "skipping non-regular file" (I think the relevant > >>> message is in generator.c). > >>> > >>> In Linux, anyway, the "raw" command allows a block device to be bound as > >>> a character device, and then even a "cat" command can read the raw data > >>> of the block device. So why does rsync refuse to copy such content, or > >>> why is it a bad idea, or what rsync doctrine conflicts with it? I agree > >>> there are security concerns here, but rsync already disallows some of > >>> its functions unless the super user is requesting them. > >>> > >>> > >> -- > >> ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._., > >> Kevin Korb Phone: (407) 252-6853 > >> Systems Administrator Internet: > >> FutureQuest, Inc. ke...@futurequest.net (work) > >> Orlando, Florida k...@sanitarium.net (personal) > >> Web page: https://sanitarium.net/ > >> PGP public key available on web site. > >> ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._., > >> > >> -- > >> Please use reply-all for most replies to avoid omitting the mailing list. > >> To unsubscribe or change options: > >> https://lists.samba.org/mailman/listinfo/rsync > >> Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html > > > > -- > Please use reply-all for most replies to avoid omitting the mailing list. > To unsubscribe or change options: > https://lists.samba.org/mailman/listinfo/rsync > Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html -- Please use reply-all for most replies to avoid omitting the mailing list. To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html