It appears that the 2.1.6 kernel found at http://downloads.whamcloud.com/public/lustre/lustre-2.1.6/el6/server/SRPMS/ is patched. That explains the errors I was seeing below. However, the 2.5.1 kernel at http://downloads.whamcloud.com/public/lustre/lustre-2.5.1/el6/server/SRPMS/ is not patched. -Roger From: HPDD-discuss [mailto:hpdd-discuss-bounces@lists.01.org] On Behalf Of Roger Spellman Sent: Friday, June 20, 2014 2:32 PM To: hpdd-discuss(a)ml01.01.org Subject: [HPDD-discuss] Partly Patched Kernel? I have downloaded the source RPMs from http://downloads.whamcloud.com/public/lustre/lustre-2.1.6/el6/server/SRPMS/ My understanding is that this kernel is not yet patched. Is this correct? To patch this, I have set up the following links: # ls -ld patches/ series drwxr-xr-x 2 tsadmin tsadmin 4096 Jun 22 2013 patches/ lrwxrwxrwx 1 root root 77 Jun 20 18:25 series -> /root/lustre-2.1.6/lustre-2.1.6/lustre/kernel_patches/series/2.6-rhel6.series And I ran the following command: # quilt push -av 2>&1 | tee quilt.log And, it gets the following error: Applying patch patches/lustre_version.patch The next patch would create the file include/linux/lustre_version.h, which already exists! Applying it anyway. patching file include/linux/lustre_version.h Hunk #1 FAILED at 1. 1 out of 1 hunk FAILED -- rejects in file include/linux/lustre_version.h Restoring include/linux/lustre_version.h Patch patches/lustre_version.patch can be reverse-applied Restoring include/linux/lustre_version.h This is really strange. It means that the source RPM on the Whamcloud web site already includes lustre_version.h, which makes it look like it is already patched. But, it does not have the other patches ! Can someone please explain this? -Roger