# xtrabackup 2.0 GA not working on 5.1 installs?
**URL:** https://forums.percona.com/t/xtrabackup-2-0-ga-not-working-on-5-1-installs/2230
**Category:** Percona XtraBackup
**Created:** [April 6, 2012, 3:46pm UTC](https://forums.percona.com/t/xtrabackup-2-0-ga-not-working-on-5-1-installs/2230 "2012-04-06T15:46:14Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@perconafireitupnet](https://forums.percona.com/u/perconafireitupnet)
#### Post date: [April 6, 2012, 3:46pm UTC](https://forums.percona.com/t/xtrabackup-2-0-ga-not-working-on-5-1-installs/2230/1 "2012-04-06T15:46:14Z")
I recently decided to try upgrading to xtrabackup 2.0 on one of my servers. However, it doesn’t appear that --stream=tar appears to work properly, anymore. Here is my command line:
innobackupex-1.5.1 --user --password --stream=tar ./ \> backup.test2.tar
The output that this gives out is:
InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oy
and Percona Inc 2009-2012. All Rights Reserved.
This software is published under
the GNU GENERAL PUBLIC LICENSE Version 2, June 1991.
120406 16:05:34 innobackupex-1.5.1: Starting mysql with options: --password=xxxxxxxx --user=‘backup’ --unbuffered –
120406 16:05:34 innobackupex-1.5.1: Connected to database with mysql child process (pid=29516)
120406 16:05:40 innobackupex-1.5.1: Connection to database server closed
IMPORTANT: Please check that the backup run completes successfully.
At the end of a successful backup run innobackupex-1.5.1
prints “completed OK!”.
innobackupex-1.5.1: Using mysql Ver 14.14 Distrib 5.1.53, for unknown-linux-gnu (x86\_64) using readline 5.1
innobackupex-1.5.1: Using mysql server version Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
innobackupex-1.5.1: Created backup directory /root/dbbackup\_xtra
120406 16:05:40 innobackupex-1.5.1: Starting mysql with options: --password=xxxxxxxx --user=‘backup’ --unbuffered –
120406 16:05:40 innobackupex-1.5.1: Connected to database with mysql child process (pid=29541)
120406 16:05:42 innobackupex-1.5.1: Connection to database server closed
120406 16:05:42 innobackupex-1.5.1: Starting ibbackup with command: xtrabackup --backup --suspend-at-end --target-dir=/tmp --stream=tar
innobackupex-1.5.1: Waiting for ibbackup (pid=29547) to suspend
innobackupex-1.5.1: Suspend file ‘/tmp/xtrabackup\_suspended’
xtrabackup version 2.0.0 for Percona Server 5.1.59 unknown-linux-gnu (x86\_64) (revision id: 417)
xtrabackup: uses posix\_fadvise().
xtrabackup: cd to /var/lib/mysql
xtrabackup: Target instance is assumed as followings.
xtrabackup: innodb\_data\_home\_dir = ./
xtrabackup: innodb\_data\_file\_path = ibdata1:10M:autoextend
xtrabackup: innodb\_log\_group\_home\_dir = ./
xtrabackup: innodb\_log\_files\_in\_group = 2
xtrabackup: innodb\_log\_file\_size = 2097152000
xtrabackup: using O\_DIRECT
120406 16:05:42 InnoDB: Warning: allocated tablespace 96, old maximum was 9
> > log scanned up to (1733864492822)
> > archive\_write\_header() failed.
> > [01] xtrabackup: error: cannot open the destination stream for ibdata1
> > [01] xtrabackup: Error: xtrabackup\_copy\_datafile() failed.
> > [01] xtrabackup: Error: failed to copy datafile.
> > innobackupex-1.5.1: Error: ibbackup child process has died at /usr/bin/innobackupex-1.5.1 line 371.
If I remove the --stream=tar option, then everything works fine.
Everything did work fine under previous versions of xtrabackup, and I was able to downgrade to xtrabackup 1.6.6 and have everything work properly.
---
### Author:  [@xaprb](https://forums.percona.com/u/xaprb)
#### Post date: [April 8, 2012, 9:42am UTC](https://forums.percona.com/t/xtrabackup-2-0-ga-not-working-on-5-1-installs/2230/2 "2012-04-08T09:42:26Z")
Please read the documentation for the updated version; there are large and important changes.
---
### Author:  [@perconafireitupnet](https://forums.percona.com/u/perconafireitupnet)
#### Post date: [April 10, 2012, 1:30pm UTC](https://forums.percona.com/t/xtrabackup-2-0-ga-not-working-on-5-1-installs/2230/3 "2012-04-10T13:30:24Z")
Ok, then I’m missing something obvious here. Looking at the --help page for innobackupex, I see:
–stream=[tar|. . .]
This option specifies the format in which to do the streamed backup.
The option accepts a string argument. The backup will be done to
STDOUT in the specified format. Currently, the only supported
formats are tar and xbstream. This option is passed directly to
xtrabackup’s --stream option.
Same type of thing located at:
[http://www.percona.com/doc/percona-xtrabackup/innobackupex/s](http://www.percona.com/doc/percona-xtrabackup/innobackupex/s) treaming\_backups\_innobackupex.html
I don’t otherwise see any docs that are specific for xtrabackup 2.0.0. What am I missing here?