Duplicity Restore - Error output: Invalid data - SHA1 hash

[anonymous]

When i try to restore my backup with Duplicity (GUI or command --> same result), there were failures.

root command /usr/share//ebox-ebackup/ebox-duplicity-wrapper --force -t 1289221211 --file-to-restore etc/zarafa file:///home/admint2s/zenbackups --no-encryption /etc/zarafa failed. 
Error output: Invalid data - SHA1 hash mismatch: Calculated hash: bcacd4556799a5f9df422ae3856b9cf98c233504 Manifest hash: 6b8377f45b33735c731b2335659417dabda1f799 
Command output: Local and Remote metadata are synchronized, no sync needed. Last full backup date: Mon Nov 8 14:00:11 2010 . Exit value: 21

So far i understand, its a problem with different Hashes, but dont know why that?!

I tried it with:

duplicity restore --file-to-restore /etc/zarafa  --restore-time 2010/11/08 file:///xxx/xxxx/zenbackups --no-encryption /tmp/zarafa

but no luck.

[javier.amor.garcia@…]

Hello,

this may be a bakcup corruption so the calculated file md5 does not match with the manifest's stored md5. However ometimes duplicity error messages are a bit misleading so it would be interesting to rerun the command with th '-v9' switch to see full output. Could you do so and attach here the output so we could examinate better the case?

Thanks

[javier.amor.garcia@…]

Another thing, after getting the log you coudl try to restore it with the --force parameter.

[jamor@…]

Since there is mot more input I suppsoe the user has solved its problems with '--force' and the error was caused by the backup's storage.

If I am wrong, please reopen this ticket

[satyris@…]

The situation: My zentyal-server has made a fullbackup (duplicity) in filesystem. This files are transfered

with FTP to my Fritzbox/Usbstick?. Then i tried to copy this files to a virtualbox zentyalserver

with duplicity. If i use the option --file-to-restore everything is fine, but if i use the

normal restore option i get an error "invalid data - SHA1...".

Invalid data - SHA1 hash mismatch:
Calculated hash: 874cd0a48936861ea85d97779e9c7cf6362d33a8
Manifest hash: 5991cbc59a6a49dd50244a1c5c49ecc910251c13

What i did:

• removed the ~/.cache/duplicity Directory

• tried the whole process again and again

• tried it with backup on an usbHD

duplicity restore ftp://ftpuser:xxx@fritz.box/Verbatim-STORENGO-01/zenbackups / --no-encryption --force -v 9

I dont understand why the first volumes are fine, but then the hashes mismatch?

Processed volume 3 of 214
Registering (mktemp) temporary file /tmp/duplicity-n5Tu03-tempdir/mktemp-6Fibxw-6
Running 'ncftpget -f /tmp/duplicity-n5Tu03-tempdir/mkstemp-3GdlPn-1 -F -t 30 -o useCLNT=0,useHELP_SITE=0  -V -C 'fritz.box' 'Verbatim-STORENGO-01/zenbackups/duplicity-full.20110408T121533Z.vol4.difftar.gz' '/tmp/duplicity-n5Tu03-tempdir/mktemp-6Fibxw-6'' (attempt #1)
Invalid data - SHA1 hash mismatch:
Calculated hash: 354b3df86aa329b06a5fadac51ffef194d0ccca8
Manifest hash: fc7a6b7257bc4952062e3da59e7d4fe1ef769c28

Removing still remembered temporary file /tmp/duplicity-n5Tu03-tempdir/mktemp-6Fibxw-6
Removing still remembered temporary file /tmp/duplicity-n5Tu03-tempdir/mkstemp-3GdlPn-1
Removing still remembered temporary file /tmp/duplicity-n5Tu03-tempdir/mkstemp-D67PM_-2

[jacalvo@…]

Have you tried upgrading to the last duplicity version (0.6.13, published 6 days ago is the last available). Reopen if still happens after the upgrade.

[satyris@…]

Sorry, tried it with duplicity 0.6.13 on both machines and no luck.

Processed volume 4 of 226
Registering (mktemp) temporary file /tmp/duplicity-DVMSlw-tempdir/mktemp-0d1_YO-6
Invalid data - SHA1 hash mismatch:
Calculated hash: 72f8f18e81764dcf2cdb11f7a7e9a3db2adf7283
Manifest hash: fc83c667cc44a33a39df03ce7a1280888fd4ea5d

Removing still remembered temporary file /tmp/duplicity-DVMSlw-tempdir/mkstemp-QFN1OO-1
Removing still remembered temporary file /tmp/duplicity-DVMSlw-tempdir/mktemp-0d1_YO-6

The only difference is real machine is AMD64 and virtual (virtualbox) one is i386

[jamor@…]

This seems a data corruption.

If restore with --force does not work try the restoration by hand:  https://live.gnome.org/DejaDup/Help/Restore/WorstCase#Restoring_by_Hand