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Centos : permission denied when mounting nfs share from client

one thing to check is that /proc/nfs is there, if not , mount it.
mount -t nfsd nodev /proc/fs/nfsd

CentOS 5.4 – install oracle client

oracle install will need :
yum install xorg-x11-deprecated-libs

CentOS 5 – add dag repo

rpm -Uvh http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6-1.el5.rf.i386.rpm

Linux HA – CRM commands

Small reminder as I always tend to forget these :
Dump the CRM cib db :
cibadmin -Q > cib.backup.xml
Modify a resource , dump the cib, modify the xml for the resources and then import using cibadmin -M
cibadmin -V -M -o resources -x modified_resources.xml
Add a resource , create the xml for the resource [...]

DRBD , Centos and unmount nfs resources

I have recently built a DRBD + Linux HA NFS cluster , part of the structure was to create a drbd disk resource and mount it on /var/lib/nfs. This allows to switch nfs over to the secondary node without getting “stale nfs handle” errors. Heartbeat was having a hardtime doing a clean umount of the [...]

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