Hello Andreas,
 
Thanks for your email. I believe basic functionality of Lustre 2.3 should work even it has some issues. Well, I installed all the RPMs and patched the kernel, following is the output of all the packages, is there anything else which I need to install? I build all these packages first on my local machine.
 
kernel-2.6.32.lustremaster-1.x86_64
lustre-2.3.0-2.6.32.lustremaster.x86_64
lustre-tests-2.3.0-2.6.32.lustremaster.x86_64
lustre-ldiskfs-3.3.0-2.6.32.lustremaster.x86_64
 
e2fsprogs-1.42.7.wc1-7.el6.x86_64
e2fsprogs-libs-1.42.7.wc1-7.el6.x86_64
 
I have all required configuration, e.g. selinux=disabled. Created /etc/modprobe.d/lustre.conf file with "options lnet networks=tcp", stop firewall services etc.
 
But, when I run : "mount -t lustre /dev/sdb/ /mnt" on an OSS server to mount OST device, I get following error:
 
Jul 23 17:54:42 lustre-5 kernel: LDISKFS-fs (sdb): mounted filesystem with ordered data mode. quota=off. Opts:
Jul 23 17:54:42 lustre-5 kernel: LDISKFS-fs (sdb): mounted filesystem with ordered data mode. quota=off. Opts:
Jul 23 17:54:42 lustre-5 kernel: Lustre: MGC10.243.107.53@tcp: Reactivating import
Jul 23 17:54:42 lustre-5 kernel: obdfilter: Unknown symbol security_inode_unlink
Jul 23 17:54:42 lustre-5 modprobe: FATAL: Error inserting obdfilter (/lib/modules/2.6.32.lustremaster/updates/kernel/fs/lustre/obdfilter.ko): Unknown symbol in module, or unknown parameter (see dmesg)
Jul 23 17:54:42 lustre-5 kernel: LustreError: 158-c: Can't load module 'obdfilter'
Jul 23 17:54:42 lustre-5 kernel: LustreError: 10270:0:(genops.c:291:class_newdev()) OBD: unknown type: obdfilter
Jul 23 17:54:42 lustre-5 kernel: LustreError: 10270:0:(obd_config.c:365:class_attach()) Cannot create device lustre-OST0000 of type obdfilter : -19
Jul 23 17:54:42 lustre-5 kernel: LustreError: 10270:0:(obd_config.c:1499:class_config_llog_handler()) Err -19 on cfg command:
Jul 23 17:54:42 lustre-5 kernel: Lustre:    cmd=cf001 0:lustre-OST0000  1:obdfilter  2:lustre-OST0000_UUID
Jul 23 17:54:42 lustre-5 kernel: LustreError: 15c-8: MGC10.243.107.53@tcp: The configuration from log 'lustre-OST0000' failed (-19). This may be the result of communication errors between this node and the MGS, a bad configuration, or other errors. See the syslog for more information.
Jul 23 17:54:42 lustre-5 kernel: LustreError: 10237:0:(obd_mount.c:1321:server_start_targets()) failed to start server lustre-OST0000: -19
Jul 23 17:54:42 lustre-5 kernel: LustreError: 10237:0:(obd_mount.c:1963:server_fill_super()) Unable to start targets: -19
Jul 23 17:54:42 lustre-5 kernel: LustreError: 10237:0:(obd_mount.c:1760:server_put_super()) no obd lustre-OST0000
Jul 23 17:54:42 lustre-5 kernel: LustreError: 10237:0:(ldlm_request.c:1166:ldlm_cli_cancel_req()) Got rc -108 from cancel RPC: canceling anyway
Jul 23 17:54:42 lustre-5 kernel: LustreError: 10237:0:(ldlm_request.c:1792:ldlm_cli_cancel_list()) ldlm_cli_cancel_list: -108
mount.lustre: mount /dev/sdb at /mnt failed: No such device
Are the lustre modules loaded?
Check /etc/modprobe.conf and /proc/filesystems
[root@lustre-5 lustre]# Jul 23 17:54:42 lustre-5 kernel: Lustre: server umount lustre-OST0000 complete
Jul 23 17:54:42 lustre-5 kernel: LustreError: 10237:0:(obd_mount.c:2569:lustre_fill_super()) Unable to mount  (-19)
 
 
Thanks,
-Upanshu
 
 
-----Original Message-----
From: Dilger, Andreas [mailto:andreas.dilger@intel.com]
Sent: Thursday, July 25, 2013 8:14 AM
To: Singhal, Upanshu
Cc: hpdd-discuss@lists.01.org (hpdd-discuss@ml01.01.org)
Subject: Re: [HPDD-discuss] Error on executing llmount.sh
 
Not sure why you are installing Lustre 2.3 at this point (it is not a release with ongoing maintenance), when 2.4 is available (which will have a support stream).
 
In any case, it seems you didn't install the Lustre patched kernel along with your RPMs, which is required on the server.
 
Cheers, Andreas
 
On 2013-07-24, at 4:55, "Singhal, Upanshu" <upanshu.singhal@emc.com<mailto:upanshu.singhal@emc.com>> wrote:
 
Hello,
 
I am able to install luster 2.3 now, but I am getting following error:
 
FATAL: Error inserting obdfilter (/lib/modules/2.6.32.lustremaster/updates/kernel/fs/lustre/obdfilter.ko): Unknown symbol in module, or unknown parameter (see dmesg)
obdfilter: Unknown symbol security_inode_unlink
 
This could be due to the following warning while installing luster-modules:
 
[root@lustre-5 lustre]# rpm -ivh lustre-modules-2.3.0-2.6.32.lustremaster.x86_64.rpm
Preparing...                ########################################### [100%]
   1:lustre-modules         ########################################### [100%]
WARNING: /lib/modules/2.6.32.lustremaster/updates/kernel/fs/lustre/obdfilter.ko needs unknown symbol security_inode_unlink
 
Any insight?
 
 
Upanshu Singhal
EMC Data Storage Systems, Bangalore, India.
Phone: 91-80-67375604
 
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