[Borgbackup] migrating from attic

[Alexey Bazhin]

Making partial backups didn't helped.

I was able to reproduce the problem on a clean repo and small amount of
static data:

attic init repo
attic create --stats repo::backup1 data
borg upgrade repo
rm -rf ~/.cache/borg
borg create -v --stats repo::backup2 data (deduplication doesn't work)
rm -rf ~/.cache/borg
borg create -v --stats repo::backup3 data (deduplication does work)

Also I tried a number of actions with repository to recreate cache
(borg prune for example or borg create -n), but it didn't help.

On Mon, 21 Mar 2016 15:54:57 +0100
Thomas Waldmann <tw at waldmann-edv.de> wrote:

> 
> > I started migration to borg because attic was crashing with
> > OverflowError while accessing the cache. I thought that "cache" is
> > something redundant and maybe broken and dropped it already. Any
> > other way to recreate right cache?
> 
> It will be recreated automatically at your first (completed) backup.
> But if it operates without files cache, it might be that it first
> stores all chunks again into the repo and afterwards kills the old
> chunks. So temporarily it might need (much) more space.
> 
> You can maybe safe a bit space by first doing some partial backups 
> before you do a full backup.
> 
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-- 
Alexey Bazhin <baz at irc.msk.ru>