[Fwd: Re: [Ocfs2-users] OCFS2 Installation woes]
Sunil Mushran
Sunil.Mushran at oracle.com
Thu Nov 3 12:49:39 CST 2005
Thanks for the update. :)
Peter Sylvester wrote:
> FYI, a follow-up on my stability issues with RHEL4-U2 on the Dell 2850
> server...
>
> It turns out that the system apparently wasn't locking up or crashing,
> just the console video was getting scrambled, making access at the
> console impossible. I was able to ssh in from the network and
> everything appeared to be running. I was also able to duplicate the
> problem on a second identical server by swapping the drives.
>
> I loaded the latest ATI video driver from Dell's site (dated October
> xx, 2005), and that appears to have solved the problem.
> So, it appears that the ATI video driver that comes with RHEL4-U2 has
> some compatibility problems with the on-board ATI video on the Dell
> 2850 server.
>
> I'll be able to start the real testing now...
>
> --Peter
>
>
> Sunil Mushran wrote:
>
>> Sanjeet,
>>
>> Have you encountered/heard anything like this? This could
>> be a hardware/setup issue with X on the 2850. But that's
>> a guess.
>>
>> Sunil
>>
>> ------------------------------------------------------------------------
>>
>> Subject:
>> Re: [Ocfs2-users] OCFS2 Installation woes
>> From:
>> Peter Sylvester <peters at mitre.org>
>> Date:
>> Mon, 17 Oct 2005 18:40:30 -0400
>> To:
>> Sunil Mushran <Sunil.Mushran at oracle.com>
>>
>> To:
>> Sunil Mushran <Sunil.Mushran at oracle.com>
>> CC:
>> ocfs2-users at oss.oracle.com
>>
>>
>> I seem to have some system stability problems...
>>
>> After installing RHEL4 Update-2 (on Dell 2850 server, dual CPU, RAID,
>> 4GB) and OCFS2 1.0.7 and getting a volume formatted and mounted I
>> left for the weekend. The server was locked up Monday AM when I came
>> in - no response to ping, "no video sync" reported by the KVM switch.
>>
>> I attempted to reboot and sometimes would boot, but most often would
>> go through all the motions, up to the HAL loading, then instead of
>> the X-Windows login screen would get some random colors at the top of
>> the screen.
>> Nothing seems to get reported to the /var/log/messages file.
>>
>> I tried disabling the OCFS2 service and mount, but still have
>> stability problems at boot with X.
>> I disabled X (set inittab to use run level 3) and I can boot with or
>> without OCFS2.
>> But, without OCFS2 I can run the "startx" and have the X-Windows
>> environment come up.
>> If OCFS2 is running (loaded + mounted) and I run startx I get the
>> crash with the colors at the top of the screen.
>>
>> Suggestions?
>>
>> thanks,
>> --Peter
>>
>>
>> Sunil Mushran wrote:
>>
>>> /etc/ocfs2/cluster.conf holds list of nodes in the cluster.
>>> /etc/sysconfig/o2cb holds the "default" cluster name which
>>> is picked by the o2cb service.
>>>
>>> The latter is updated during:
>>> /etc/init.d/o2cb configure
>>>
>>> Appears the cluster name in the two do not match.
>>>
>>> What difference did you notice?
>>>
>>> Peter Sylvester wrote:
>>>
>>>> Here is some feedback on my OCFS2 installation...
>>>>
>>>> You were correct about selinux. I was able to disable it by
>>>> specifying "SELINUX=disabled" in /etc/selinux/config and rebooting.
>>>> I was then able to run the console tool correctly.
>>>>
>>>> I did stumble on another issue, though. It appears that the
>>>> console tool hard codes the cluster name as "ocfs2", but the
>>>> cluster service seems to be looking for cluster "racdb", and errors
>>>> out when attempting to bring online. I hand edited the
>>>> cluster.conf file and changed the cluster name to "racdb" and
>>>> everything then appeared to work.
>>>>
>>>> Also, I noticed that the cluster.conf configuration is a bit
>>>> different from that shown in the User's Guide documentation.
>>>>
>>>> I was able to mkfs.ocfs2 and mount the partition and it appears to
>>>> work. I'll plan on doing some testing next week to stress it out a
>>>> bit.
>>>>
>>>> --Peter
>>>>
>>>> Sunil Mushran wrote:
>>>>
>>>>> You appear to have selinux enabled which is missing policies for
>>>>> configfs/ocfs2.
>>>>> We are still investigating the issue, but one quick solution would
>>>>> be to disable selinux. :)
>>>>>
>>>>> Peter Sylvester wrote:
>>>>>
>>>>>> I've got a fresh RHEL AS 4-U2 installation on a Dell PE2850 server.
>>>>>>
>>>>>> I downloaded and installed the latest RPMs:
>>>>>> ocfs2-2.6.9-22.ELsmp-1.0.7-1.i686.rpm
>>>>>> ocfs2-tools-1.0.2-1.i386.rpm
>>>>>> ocfs2console-1.0.2-1.i386.rpm
>>>>>>
>>>>>> I was able to start the console, but when I try to run
>>>>>> cluster->configure_nodes, I get the following error message:
>>>>>> Could not start cluster stack. This must be resolved before any
>>>>>> OCFS2 filesystem can be mounted.
>>>>>>
>>>>>> I tried to start the service via the command line:
>>>>>> /etc/init.d/o2cb load
>>>>>>
>>>>>> And got the error:
>>>>>> Mounting configfs filesystem at /config: mount: block device
>>>>>> configfs is write-protected, mounting read-only
>>>>>> mount: cannot mount block device configfs read-only
>>>>>> Unable to mount configfs filesystem
>>>>>> Failed
>>>>>>
>>>>>> I tried mounting /config myself via the following, which worked
>>>>>> (not sure if thats how it *should* be done though):
>>>>>> mount -t configfs none /config
>>>>>>
>>>>>> Now o2cb load puts out the following message:
>>>>>> Loading module "ocfs2_nodemanager": Unable to load module
>>>>>> "ocfs2_nodemanager"
>>>>>> Failed
>>>>>>
>>>>>> And an o2cb status shows:
>>>>>> Module "configfs": Loaded
>>>>>> Filesystem "configfs": Mounted
>>>>>> Module "ocfs2_nodemanager": Not loaded
>>>>>> Module "ocfs2_dlm": Not loaded
>>>>>> Module "ocfs2_dlmfs": Not loaded
>>>>>> Filesystem "ocfs2_dlmfs": Not mounted
>>>>>>
>>>>>> I tried creating a /etc/ocfs2/cluster.conf myself (using vi), but
>>>>>> it did not seem to have any effect.
>>>>>> I tried a fresh reboot but that did not seem to change anything.
>>>>>> Also note that all commands were run as root, and I am just
>>>>>> trying to get a single node with local disk working.
>>>>>>
>>>>>> There were some error messages reported in /var/log/messages, of
>>>>>> the form:
>>>>>> Oct 13 17:02:56 dblinux1 kernel: SELinux: initialized (dev
>>>>>> configfs, type configfs), not configured for labeling
>>>>>> Oct 13 17:02:56 dblinux1 kernel: audit(1129237376.191:5): avc:
>>>>>> denied { mount } for pid=14922 comm="mount" name="/"
>>>>>> dev=configfs ino=70286 scontext=root:system_r:initrc_t
>>>>>> tcontext=system_u:object_r:unlabeled_t tclass=filesystem
>>>>>>
>>>>>> Also have some errors of form:
>>>>>> Oct 13 18:03:49 dblinux1 dbus: Can't send to audit system:
>>>>>> USER_AVC pid=2587 uid=81 loginuid=-1 message=avc: denied {
>>>>>> send_msg } for scontext=user_u:system_r:unconfined_t
>>>>>> tcontext=user_u:system_r:initrc_t tclass=dbus
>>>>>>
>>>>>> And this one:
>>>>>> Oct 13 17:46:36 dblinux1 kernel: OCFS2 Node Manager 1.0.7 Wed Oct
>>>>>> 12 13:18:42 PDT 2005 (build 6cb35edfedddf6b4d606b95f2579cb39)
>>>>>> Oct 13 17:46:36 dblinux1 kernel: audit(1129239996.953:8): avc:
>>>>>> denied { mount } for pid=3903 comm="modprobe" name="/"
>>>>>> dev=configfs ino=10949 scontext=root:system_r:initrc_t
>>>>>> tcontext=system_u:object_r:unlabeled_t tclass=filesystem
>>>>>> Oct 13 17:46:36 dblinux1 kernel: nodemanager: Registration
>>>>>> returned -13
>>>>>> Oct 13 17:46:36 dblinux1 modprobe: FATAL: Error inserting
>>>>>> ocfs2_nodemanager
>>>>>> (/lib/modules/2.6.9-22.ELsmp/kernel/fs/ocfs2/ocfs2_nodemanager.ko):
>>>>>> Permission denied
>>>>>>
>>>>>> Any clues as to what I should do I try from here????
>>>>>>
>>>>>> thanks,
>>>>>> --Peter
>>>>>>
>>>>>> _______________________________________________
>>>>>> Ocfs2-users mailing list
>>>>>> Ocfs2-users at oss.oracle.com
>>>>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>>>
>>>>>
>>>>>
>>>>
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>>>
>>>
>>
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>
>
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