Am 2015-11-07 um 20:18 schrieb Hugo Mills: > On Sat, Nov 07, 2015 at 08:04:01PM +0100, Jakob Schürz wrote: >> Hi there! >> >> I can't find any Information for my Problem. And I try to explain, what >> I want. > [snip] >> BUT >> >> When i boot from f.e. @debian-snap2, the mechanics doesn't work any longer. >> >> btrfs subvol snapshot @debian-snap2 @debian-snap3 >> >> this works. >> >> btrfs send -p @debian-snap2 debian-snap3 | btrfs receive /backupmountpoint >> >> gives me an error, that btrfs can't find a subvol with a proper ID. >> >> Ho to do this, if i want to boot from a former snapshot (in case of a >> mistaken system-upgrade) and i want to transfer the later snapshots to >> the external HD - only the differences? > > Basically, you can't right now. It's a known limitation, and can, I > think, be fixed, but it'll need a change to the send stream format, > which is a tricky migration to do (because there's currently no format > identifier in it, which makes it hard to handle both formats easily). > >> There is nothing on the internet on this problem (I've found). But i >> think this is a usecase, which I'm not alone needing it... > > You're not alone. It will come eventually, but only when David's in > a position to deal with the issues of changing the send stream.
OK! I'm always happy, when i realize, it's not my tired mind, when i can't find the solution :) Thanks for the info. So we will wait. jakob -- http://xundeenergie.at http://verkehrsloesungen.wordpress.com/ http://cogitationum.wordpress.com/
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