Hello,

I was running a single ipa instance on Centos 7 for a small lab
(ipa-server-4.2.0-15.0.1.el7.centos.17.x86_64), and the disk was corrupted.
I have a (mostly) full backup (/var/log/ and /var/run/ excluded), which I
restored. ipa server didn't start, and wanted me to run
ipa-server-upgrade. This failed, and I see this in the log:

2016-06-25T23:16:37Z DEBUG Mounting ipaserver.rpcserver.jsonserver_kerb() at 
'/json'
2016-06-25T23:16:37Z DEBUG session_auth_duration: 0:20:00
2016-06-25T23:16:37Z DEBUG Loading Index file from 
'/var/lib/ipa/sysrestore/sysrestore.index'
2016-06-25T23:16:37Z DEBUG   File 
"/usr/lib/python2.7/site-packages/ipapython/admintool.py", line 171, in execute
    return_value = self.run()
  File 
"/usr/lib/python2.7/site-packages/ipaserver/install/ipa_server_upgrade.py", 
line 47, in run
    server.upgrade_check(self.options)
  File "/usr/lib/python2.7/site-packages/ipaserver/install/server/upgrade.py", 
line 1573, in upgrade_check
    sys.exit(1)

2016-06-25T23:16:37Z DEBUG The ipa-server-upgrade command failed, exception: 
SystemExit: 1


I tried starting dirsrv@DOMAIN manually, and I get thisin the dirsrv log:


[26/Jun/2016:01:46:54 -0400] - 389-Directory/1.3.4.0 B2016.175.1716 starting up
[26/Jun/2016:01:46:54 -0400] - WARNING: changelog: entry cache size 2097152B is 
less than db size 143196160B; We recommend to increase the entry cache size 
nsslapd-cachememsize.
[26/Jun/2016:01:46:54 -0400] - Detected Disorderly Shutdown last time Directory 
Server was running, recovering database.
[26/Jun/2016:01:46:55 -0400] - libdb: BDB2506 file userRoot/id2entry.db has LSN 
4336/2969724, past end of log at 1/176
[26/Jun/2016:01:46:56 -0400] - libdb: BDB2507 Commonly caused by moving a 
database from one database environment
[26/Jun/2016:01:46:56 -0400] - libdb: BDB2508 to another without clearing the 
database LSNs, or by removing all of
[26/Jun/2016:01:46:56 -0400] - libdb: BDB2509 the log files from a database 
environment
[26/Jun/2016:01:46:57 -0400] - dbp->open("userRoot/id2entry.db") failed: 
Invalid argument (22)
[26/Jun/2016:01:46:57 -0400] - dblayer_instance_start fail: Invalid argument 
(22)
[26/Jun/2016:01:46:57 -0400] - libdb: BDB2506 file ipaca/id2entry.db has LSN 
4336/2990140, past end of log at 1/288
[26/Jun/2016:01:46:57 -0400] - libdb: BDB2507 Commonly caused by moving a 
database from one database environment
[26/Jun/2016:01:46:57 -0400] - libdb: BDB2508 to another without clearing the 
database LSNs, or by removing all of
[26/Jun/2016:01:46:57 -0400] - libdb: BDB2509 the log files from a database 
environment
[26/Jun/2016:01:46:57 -0400] - dbp->open("ipaca/id2entry.db") failed: Invalid 
argument (22)
[26/Jun/2016:01:46:58 -0400] - dblayer_instance_start fail: Invalid argument 
(22)
[26/Jun/2016:01:46:58 -0400] - libdb: BDB2506 file changelog/id2entry.db has 
LSN 4336/2921967, past end of log at 1/288
[26/Jun/2016:01:46:58 -0400] - libdb: BDB2507 Commonly caused by moving a 
database from one database environment
[26/Jun/2016:01:46:58 -0400] - libdb: BDB2508 to another without clearing the 
database LSNs, or by removing all of
[26/Jun/2016:01:46:58 -0400] - libdb: BDB2509 the log files from a database 
environment
[26/Jun/2016:01:46:58 -0400] - dbp->open("changelog/id2entry.db") failed: 
Invalid argument (22)
[26/Jun/2016:01:46:58 -0400] - dblayer_instance_start fail: Invalid argument 
(22)
[26/Jun/2016:01:46:58 -0400] - start: Failed to start databases, err=22 Invalid 
argument


So I'm trying to figure out if I can salvage this restored VM, or if I need
to reinstall from scratch; and if I do reinstall, am I going to be able to
restore my old data somehow. I have a funny feeling that there are
important files in /var/log and/or /var/run and I'm up the creek without a
paddle.

And yes, once I have a working system again I'm going to set up a replica
to help avoid this mess in the future.

Robert

-- 
Senior Software Engineer @ Parsons

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