Do I understood you correctly that you are trying to use bextract
(version 25.0.3) while having installed bareos-sd (version 24.0.7) ?
What version of libbareos/dedup-backend/etc. is bextract using ?
Generally all bareos appliations should have to be off the same version
on the same machine.
The easiest way to test the new bextract is to install bextract into a
container of your choice so it can use its own dependencies.
> Based on this, I suspect that the Bareos-sd backend may have changed
after the version upgrade, and that Bextract might no longer be
compatible with it.
The volume files itself are definitely compatible, but the abi/api of
the libraries may have changed.
Am 03.04.26 um 02:49 schrieb jaemin cha:
Thank you for your response.
It seems that my previous test records caused some confusion.
I installed the community distribution from:
https://download.bareos.org/current/EL_8/<https://download.bareos.org/current/EL_8/>
Version: 25.0.3
OS: Rocky Linux 8.10
All observations below are based on the same version.
I also tested using the method you suggested (su bareos -c "..."), but
it did not work.
The segmentation fault occurs only on version 25.0.3 under the same
configuration, and according to the logs, it fails to open the device.
Based on this, I suspect that the Bareos-sd backend may have changed
after the version upgrade, and that Bextract might no longer be
compatible with it.
Additionally, it seems that the issue may also be related to the
Bareos-sd media type (file/dedupe).
Are there any alternative approaches?
Or would it be better to build and test from the current master branch
on GitHub?
Any suggestions would be greatly appreciated.
2026년 4월 2일 목요일 PM 8시 52분 51초 UTC+9에 Bruno Friedmann
(bruno-at-bareos)님이 작성:
I'm not sure to understand at 100% your problem. especially the
description of of the version used.
To make it clear: bareos-tools have to have the same version of
the sd both depending on the bareos-common libs.
I've just tested here with master and it work, also don't forget
to run the tool as bareos user and not root
So calling the tool with
su bareos -c "/usr/sbin/bextract -d200 -v -i /tmp/include.list -V
volume_name archive_device_path /var/tmp/extract"
Work smoothly.
Please verify that you upgrade all component to the same version.
On Thursday, 2 April 2026 at 11:07:15 UTC+2 jaemin cha wrote:
Hello everyone,
I have identified an issue with file extraction using Bextract.
A segmentation fault occurs, and according to the logs, it
fails to open the Bareos-sd backend device that it needs to
read from.
However, I have not been able to find similar cases in the
same version. In particular, this issue started occurring
after upgrading to Bareos 25.0.3.
Previously, I was using version 24.0.7, where everything
worked as expected.
The only difference in the environment is the version upgrade.
Here is my analysis so far: Thank you.
---
Failed = bareos-sd(27.0.7) media type dedupable bextrext(25.0.3)
Failed = bareos-sd(27.0.7) media type dedupable bextrext(24.0.7)
OK = bareos-sd(27.0.7) media type file bextrext(24.0.7)
OK = bareos-sd(24.0.7) media dedupable bextrext(24.0.7)
Failed = bareos-sd(27.0.7) media type dedupable bextrext(25.0.3)
Detail Log D level 200
—
/usr/sbin/bextract -d 200 -v -i ./include-list -V vol-1
/stg/backup /usr/local/test
bextract (100): findlib/match.cc:408-0 add_fname_to_include
prefix=0 compress=0 alg= 0 fname=/rear-output/iso/*/*.iso
bextract (10): lib/parse_conf.h:460-0
ConfigResourcesContainer: new configuration_resources_
0x563f51fdc1d0
bextract (100): lib/parse_conf.cc:181-0 config file =
/etc/bareos/bareos-sd.d/*/*.conf
bextract (100): lib/lex.cc:295-0 glob
/etc/bareos/bareos-sd.d/*/*.conf: 9 files
~~~~~
bextract (10): stored/stored_conf.cc:458-0 : Device resource
"b247360d-c13b-4d6b-a8be-334192d78fc6" will not implicitly
create autochanger "b247360d-c13b-4d6b-a8be-334192d78fc6"
resource since it is already used by autochanger resource
"b247360d-c13b-4d6b-a8be-334192d78fc6".
02-Apr 17:31 bextract: Device resource
"b247360d-c13b-4d6b-a8be-334192d78fc6" will not implicitly
create autochanger "b247360d-c13b-4d6b-a8be-334192d78fc6"
resource since it is already used by autochanger resource
"b247360d-c13b-4d6b-a8be-334192d78fc6".
bextract (10): stored/stored_conf.cc:458-0 : Device resource
"58655fe7-5feb-46a4-ae60-ccc3cccff6f8" will not implicitly
create autochanger "58655fe7-5feb-46a4-ae60-ccc3cccff6f8"
resource since it is already used by autochanger resource
"58655fe7-5feb-46a4-ae60-ccc3cccff6f8".
02-Apr 17:31 bextract: Device resource
"58655fe7-5feb-46a4-ae60-ccc3cccff6f8" will not implicitly
create autochanger "58655fe7-5feb-46a4-ae60-ccc3cccff6f8"
resource since it is already used by autochanger resource
"58655fe7-5feb-46a4-ae60-ccc3cccff6f8".
bextract (10): stored/stored_conf.cc:458-0 : Device resource
"39e4b2b9-ffbb-4687-be73-f481222cfb2d" will not implicitly
create autochanger "39e4b2b9-ffbb-4687-be73-f481222cfb2d"
resource since it is already used by autochanger resource
"39e4b2b9-ffbb-4687-be73-f481222cfb2d".
02-Apr 17:31 bextract: Device resource
"39e4b2b9-ffbb-4687-be73-f481222cfb2d" will not implicitly
create autochanger "39e4b2b9-ffbb-4687-be73-f481222cfb2d"
resource since it is already used by autochanger resource
"39e4b2b9-ffbb-4687-be73-f481222cfb2d".
bextract (50): stored/sd_backends_dynamic.cc:46-0 Loaded
dynamic library
/usr/lib64/bareos/backends/libbareossd-dedupable.so
bextract (8): lib/crypto_cache.cc:55-0 Could not open crypto
cache file. /var/lib/bareos/bareos-sd.9103.cryptoc ERR=No such
file or directory
bextract (100): lib/jcr.cc:185-0 Construct JobControlRecord
bextract: stored/butil.cc:327-0 Using device: "/stg/backup"
for reading.
bextract (100): lib/implementation_factory.h:63-0 Creating
Instance for 'dedupable'
bextract (100): stored/dev.cc:325-0 FactoryCreateDevice:
tape=0 archive_device_string=/stg/backup
bextract (100): stored/dev.cc:328-0 dev=/stg/backup
dev_max_bs=1048576 max_bs=1048576
bextract (100): stored/block.cc:140-0 created new block of
blocksize 1048576 (dev->max_block_size)
bextract (200): stored/acquire.cc:736-0 Attach Jid=0
dcr=0x563f51ff27a0 size=0
dev="$b247360d-c13b-4d6b-a8be-334192d78fc6" (/stg/backup)
bextract (150): stored/vol_mgr.cc:174-0 add_read_vol=vol-1 JobId=0
bextract (100): stored/butil.cc:219-0 Acquire device for read
bextract (100): stored/acquire.cc:106-0 dcr=0x563f51ff27a0
dev=0x563f51ff4570
bextract (100): stored/acquire.cc:107-0 MediaType dcr= dev=Dedup
bextract (100): stored/acquire.cc:137-0 Want Vol=vol-1 Slot=0
bextract (100): stored/acquire.cc:149-0 MediaType dcr= dev=Dedup
bextract (100): stored/acquire.cc:214-0 MediaType dcr= dev=Dedup
bextract (100): stored/acquire.cc:232-0 DirGetVolumeInfo vol=vol-1
bextract (100): stored/askdir.cc:712-0 Fake DirGetVolumeInfo
bextract (100): stored/mount.cc:608-0 No swap_dev set
bextract (100): stored/mount.cc:562-0 Must load
"$b247360d-c13b-4d6b-a8be-334192d78fc6" (/stg/backup)
bextract (100): stored/autochanger.cc:125-0 Device
"$b247360d-c13b-4d6b-a8be-334192d78fc6" (/stg/backup) is not
attached to an autochanger
bextract (100): stored/acquire.cc:266-0 stored: open vol=vol-1
bextract (100): stored/dev.cc:538-0 open dev: type=dedupable
archive_device_string="$b247360d-c13b-4d6b-a8be-334192d78fc6"
(/stg/backup) vol=vol-1 mode=OPEN_READ_ONLY
bextract (100): stored/dev.cc:556-0 call OpenDevice
mode=OPEN_READ_ONLY
Segmentation fault (core dumped)
---------------------------------------
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