Re: [BackupPC-users] 4.1.5 Error: Wrong user: my userid is 33, instead of 126(backuppc)

[JC Francois]

Thanks a lot Alex for pointing me in the right direction!

I had indeed read and applied the fix suggested on the Arch wiki 6 
months ago to make SUID work. When the package updated last weekend I 
had completely forgotten about it. I reapplied it now and it is working 
again.


/~JC


On 19/12/17 17:50, Alexander Kobel wrote:

On 12/19/2017 05:07 PM, JC Francois wrote:

Probably you've seen those before - but just in case you didn't: Do 
the hints from the Arch wiki help?



https://wiki.archlinux.org/index.php/BackupPC#The_webserver_user_and_the_suid_problem 





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Re: [BackupPC-users] 4.1.5 Error: Wrong user: my userid is 33, instead of 126(backuppc)

[Alexander Kobel]

On 12/19/2017 05:07 PM, JC Francois wrote:

Hi,

I have been successfully running backuppc on an archlinux server for a
couple of months. Since the last update of the arch package I am no
longer able to access the web GUI. [...]


Hi,

are you sure that the backuppc package is the culprit, rather than an 
apache update or some other, seemingly unrelated, system package that 
might have changed the setuid behavior?


IIUC, in your setup, the *interpreter* needs to be run as user backuppc, 
that is /usr/sbin/perl; did you have the setuid bit set on that file 
before the update?



I read the comment in the documentation about setuid emulation not being
supported on many systems but it worked until the last backuppc update
and perl has not been updated since september.


Probably you've seen those before - but just in case you didn't: Do the 
hints from the Arch wiki help?



https://wiki.archlinux.org/index.php/BackupPC#The_webserver_user_and_the_suid_problem

I'm not using this setup, but I realize that one difference is 
user:group backuppc:http instead of backuppc:backuppc for 
BackupPC_Admin.  Also, the description there suggests that if your 
approach worked before, it was a bug rather than a feature...



Best,
Alex



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[BackupPC-users] 4.1.5 Error: Wrong user: my userid is 33, instead of 126(backuppc)

[JC Francois]

Hi,

I have been successfully running backuppc on an archlinux server for a
couple of months. Since the last update of the arch package I am no
longer able to access the web GUI. when trying to load the
`BackupPC_Admin` page I get the message below:

Error: Wrong user: my userid is 33, instead of 126(backuppc)

This script needs to run as the user specified in $Conf{BackupPCUser},
which is set to backuppc.
This is an installation problem. If you are using mod_perl then it
appears that Apache is not running as user backuppc. If you are not
using mod_perl, then most like setuid is not working properly on
BackupPC_Admin. Check the permissions on
/usr/share/backuppc/cgi-bin/BackupPC_Admin and look at the documentation.


I verified the rights on the file:
-rwsrwxr-- 1 backuppc backuppc 3.9K Dec 10 12:05 BackupPC_Admin

and the cgi-bin folder is owned by root:root but has (r-x) rights for
others.

My kernel is 4.14.5-1-ARCH. There are no errors in
/var/log/httpd/errors_log.

I read the comment in the documentation about setuid emulation not being
supported on many systems but it worked until the last backuppc update
and perl has not been updated since september.

Thanks for your help!


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Re: [BackupPC-users] File System containing backup was too full

[Adrien Coestesquis]

after installation i changed the topdir setting in the config.pl
$Conf{TopDir} = '/backup/backuppc';
then i had to copy the entire /var/lib/backuppc arborescence to this new
dir in order to make it work

i have no var partition and all is clean :

root@bak1:/etc/backuppc# df -h
Filesystem Size  Used Avail Use% Mounted on
/dev/md0p1 543G  6.4G  509G   2% /
udev10M 0   10M   0% /dev
tmpfs  1.6G   16M  1.5G   1% /run
tmpfs  3.8G 0  3.8G   0% /dev/shm
tmpfs  5.0M 0  5.0M   0% /run/lock
tmpfs  3.8G 0  3.8G   0% /sys/fs/cgroup
/dev/sda1   15T  9.4T  4.4T  69% /backup


2017-12-19 13:43 GMT+01:00 Stefan Peter :

> Dear Adrien Coestesquis
> On 19.12.2017 13:10, Adrien Coestesquis wrote:
> > i don't think so, the BPC arborescence is somewhere else
>
> And BackupPC knows this for real? If I remember correctly, you can
> deviate from /var/lib/backuppc only if you install directly from the
> sources. If you use an upstream package, you can not.
>
> Could it be that your /var partition is at 95%?
>
>
> With kind regards
>
> Stefan Peter
>
>
> 
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Re: [BackupPC-users] File System containing backup was too full

[Stefan Peter]

Dear Adrien Coestesquis
On 19.12.2017 13:10, Adrien Coestesquis wrote:
> i don't think so, the BPC arborescence is somewhere else

And BackupPC knows this for real? If I remember correctly, you can
deviate from /var/lib/backuppc only if you install directly from the
sources. If you use an upstream package, you can not.

Could it be that your /var partition is at 95%?


With kind regards

Stefan Peter


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Re: [BackupPC-users] File System containing backup was too full

[G.W. Haywood via BackupPC-users]

Hi there,

On Tue, 19 Dec 2017, Adrien Coestesquis wrote:


Debian 8, no disk quota.


https://bugzilla.kernel.org/show_bug.cgi?id=151491

?

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73,
Ged.

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Re: [BackupPC-users] File System containing backup was too full

[Bzzzz]

On Tue, 19 Dec 2017 13:10:44 +0100
Adrien Coestesquis  wrote:

> i don't think so, the BPC arborescence is somewhere else

Like the truth, apparently :/

Hmm, devs, could it be something weird in the code, like the use of a
signed int that would overflow?

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Re: [BackupPC-users] File System containing backup was too full

[Adrien Coestesquis]

i don't think so, the BPC arborescence is somewhere else

2017-12-19 12:25 GMT+01:00 B :

> On Tue, 19 Dec 2017 12:15:05 +0100
> Adrien Coestesquis  wrote:
>
> …
> > another weird thing backups seems to be repeated :
> >
> > 2017-12-19 05:00:00 incr backup started back to 2017-12-17 05:00:03
> > (backup #274) for directory /var/lib/jenkins/jobs
> >
> > 2017-12-19 08:49:39 incr backup started back to 2017-12-17 05:00:03
> > (backup #274) for directory /var/lib/jenkins/jobs
>
> Could it be that:
> * you backup /var entirely,
> * your BPC arborescence is into /var/lib/backuppc
> that might create (?) an infinite loop?
>
> 
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Re: [BackupPC-users] File System containing backup was too full

[Bzzzz]

On Tue, 19 Dec 2017 12:15:05 +0100
Adrien Coestesquis  wrote:

…
> another weird thing backups seems to be repeated :
> 
> 2017-12-19 05:00:00 incr backup started back to 2017-12-17 05:00:03
> (backup #274) for directory /var/lib/jenkins/jobs
> 
> 2017-12-19 08:49:39 incr backup started back to 2017-12-17 05:00:03
> (backup #274) for directory /var/lib/jenkins/jobs

Could it be that:
* you backup /var entirely,
* your BPC arborescence is into /var/lib/backuppc
that might create (?) an infinite loop?

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Re: [BackupPC-users] File System containing backup was too full

[Adrien Coestesquis]

Hello,

Same notification this morning.

i saw this line in logfile, this well reflects the actual disk usage :

2017-12-19 01:00:00 24hr disk usage: 68% max, 68% recent, 0 skipped hosts

another weird thing backups seems to be repeated :

2017-12-19 05:00:00 incr backup started back to 2017-12-17 05:00:03
(backup #274) for directory /var/lib/jenkins/jobs

2017-12-19 08:49:39 incr backup started back to 2017-12-17 05:00:03
(backup #274) for directory /var/lib/jenkins/jobs



2017-12-18 17:21 GMT+01:00 Adrien Coestesquis :

> Ok thanks, I will look at it if i see the notification tomorrow.
> i will let you know guys !
>
> 2017-12-18 17:08 GMT+01:00 B :
>
>> On Mon, 18 Dec 2017 16:43:35 +0100
>> Adrien Coestesquis  wrote:
>>
>> > Hey ! Indeed, it solves problems sometimes :)
>> > I reboot the machine right now, and I will see tomorrow
>>
>> It may also be tied to another cause which appears quite silly:
>> https://serverfault.com/questions/482173/is-there-any-other-
>> reason-for-no-space-left-on-device
>> (see comment noted 4 in middle page)
>>
>> This is old, but this behavior may not have been corrected since.
>>
>> 
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>>
>
>
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Re: [BackupPC-users] BackupPC 4.1.5 released (plus new versions of backuppc-xs and rsync-bpc)

[Daniel Berteaud]

Le 18/12/2017 à 19:08, Pete Geenhuizen a écrit :

OK I'll give it a shot with the V3 config.

As far as the configure.pl script goes, it should be included since it 
is mentioned in the documentation.


Now included in the doc dir

Cheers,
Daniel
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