[CentOS] BackupPC won't fork after CentOS 5.2 upgrade

Johnny Hughes jhughes at hughesjr.com
Tue Jul 8 08:47:22 UTC 2008


Ben wrote:
> Ben wrote:
>> For some time now i have been running BackupPC 3.1.0 on CentOS 5.1 
>> x86_64 however after upgrading to CentOS 5.2 BackupPC will not start.
>>
>> "sudo /etc/init.d/backuppc start" return OK but there is no BackupPC 
>> processes.
>>
>> This fails also.
>> # sudo -u backuppc /usr/bin/BackupPC -d
>> # echo $?
>> 0
>>
>> This succeeds, but of course does not fork.
>> # sudo -u backuppc /usr/bin/BackupPC
>>
>> So for some reason after the CentOS 5.2 upgrade it will not fork into 
>> the background.
>>
>> I have run the perl debugger over it and up until the fork everything 
>> is fine.
>>
>> Nothing appears in the LOG.
>>
> With some help from the BackupPC list i have narrowed the problem down 
> to the NSS config, I use LDAP to resolve users and groups.
> 
> In /etc/nsswitch.conf this is what is there and was there with CentOS 
> 5.1, with this config BackupPC will not background.
> <snip>
> passwd:     files ldap
> shadow:     files ldap
> group:      files ldap
> <snip>
> 
> However, with this in nsswitch.conf the service will background.
> <snip>
> passwd:     files ldap
> shadow:     files
> group:      files ldap
> <snip>
> 
> Apparently this has been seen to affect dhcpd too, but with the 
> "services" nss database.
> 
> Any ideas on this?  What has changed between 5.1 and 5.2?

Look in the release notes for C5 (search for nss_ldap):

http://wiki.centos.org/Manuals/ReleaseNotes/CentOS5.2

Try my fixed RPM here:

http://people.centos.org/hughesjr/nss_ldap/5/

Upstream bugzilla entry here:

https://bugzilla.redhat.com/show_bug.cgi?id=448014

Thanks,
Johnny Hughes


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