I am installing OSCAR 4.2.1 on an IA64 cluster.  When the nodes reboot (after 
installation, and also every time after that), they fail to mount any NFS file 
systems.  However, once the node has finished booting, if I do a "mount /home" 
it mounts instantly.
 
My exports file on my head node says:
 
~]$ cat /etc/exports
#
/home 10.2.148.1/255.255.255.0(async,rw,no_root_squash)
/share 10.2.148.1/255.255.255.0(async,rw)
~]$ 
 
My fstab entry on a compute node looks like this:
 
# This file is edited by fstab-sync - see 'man fstab-sync' for details
/dev/sda3       swap    swap    defaults        0       0
/dev/sda2       /       ext3    defaults        1       2
/dev/sda4       /tmp    ext3    defaults        1       2
/dev/sda1       /boot/efi       vfat    defaults        1       2
/dev/fd0        /mnt/floppy     auto    noauto,owner    0       0
none    /dev/pts        devpts  defaults        0       0
none    /proc   proc    defaults        0       0
nfs_oscar:/share        /share  nfs     rw      0       0
nfs_oscar:/home /home   nfs     rw      0       0
none      /dev/shm        tmpfs   defaults        0 0

 
I tried changing nfs_oscar to the head node's eth0 IP addr, and the file looks 
like this:
 
 
# This file is edited by fstab-sync - see 'man fstab-sync' for details
/dev/sda3       swap    swap    defaults        0       0
/dev/sda2       /       ext3    defaults        1       2
/dev/sda4       /tmp    ext3    defaults        1       2
/dev/sda1       /boot/efi       vfat    defaults        1       2
/dev/fd0        /mnt/floppy     auto    noauto,owner    0       0
none    /dev/pts        devpts  defaults        0       0
none    /proc   proc    defaults        0       0
10.2.148.1:/share       /share  nfs     rw      0       0
10.2.148.1:/home        /home   nfs     rw      0       0
none      /dev/shm        tmpfs   defaults        0 0

However, NFS mounting during boot fails in both cases. 
 
I get variations of the error message in my /var/log/messages log from the 
failures during boot:
 
Apr 12 13:23:58 compute-15-01 mount: mount: mount to NFS server 'nfs_oscar' 
failed:
Apr 12 13:23:58 compute-15-01 mount: System Error: No route to host.
 
or 

Apr 12 13:24:07 compute-15-01 mount: mount: mount to NFS server 'nfs_oscar' 
failed: System Error: Connection refused

or 
 
Apr 12 13:32:25 compute-15-01 mount: mount: mount to NFS server '10.2.148.1' 
failed:
Apr 12 13:32:25 compute-15-01 mount: System Error: No route to host.
 
As I said, in both instances (both IP address and nfs_oscar hostname in the 
fstab), once booting was complete, the command "mount /home" worked perfectly 
fine.
 
Any idea why it isn't working during boot?
 
Thanks,
--Joe

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