Re: what is the purpose of a checkpoint?

[Colin Percival <cperciva@tarsnap.com>]

On 05/06/14 11:52, Daniel Staal wrote:
> --As of May 6, 2014 6:51:26 PM +0300, Ali Khalfan is alleged to have said:
>> I tried to backup a directory using an archive called sample  using
>> "tarsnap -c -f sample /home/user/dir1".
>>
>> Later I send a USR2 signal and then break the backup using ^C.

You wanted ^Q, which combines those two (creates a checkpoint, then exits).

>> When I
>> run the same tarsnap command again, I get an error saying it already
>> exists as sample.part.
>>
>> What should I do in this case?  how do i continue the backup on the
>> .part file since I've been running the backup for days, I'm assuming
>> there is something on the server.
> 
> --As for the rest, it is mine.
> 
> What you need to do is change the name of the archive - nothing else.  So:
> `tarsnap -c -f newsample /home/user/dir1`
> 
> Tarsnap will deduplicate any data that's already been sent, so it acts as if you
> continued the same backup.

What Daniel said.  You can delete the .part archive later -- just keep it around
for long enough to be useful while you're creating your full archive.

-- 
Colin Percival
Security Officer Emeritus, FreeBSD | The power to serve
Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid