You know, the problem is that compute nodes in Rocks distribution use Apache web server to locate the install image. Currently, the compute node, says Unable to retrieve http://10.10.10.1/install/rocks-dist/x86_64/images/install.img The guys on Rocks mailing list suggested that
the root of webserver tree is: /var/www/html the install subdirectory is soft-linked to /export/rocks/installif the webserver can't find the install.img, then your distro is likely corrupted. To fix that problem: # cd /export/rocks/install; rocks create distroIf you have somehow changed the configuration of the webserver on your frontend, you need to figure out what was changed. However, the soft link is present root@cluster:~# ls -l /var/www/html/ total 36 lrwxrwxrwx 1 root root 30 Apr 29 2014 blast -> /opt/bio/ncbi/network/wwwblast drwxr-xr-x 2 root root 4096 May 2 15:46 download drwxr-xr-x 17 root root 4096 Apr 29 2014 ganglia drwxr-xr-x 4 root root 4096 Apr 29 2014 gromacs drwxr-xr-x 2 root root 4096 Apr 29 2014 images -rw-r--r-- 1 root root 0 May 1 14:28 index.h lrwxrwxrwx 1 root root 21 Apr 29 2014 install -> /export/rocks/install drwxr-xr-x 2 root root 4096 Apr 29 2014 misc drwxr-xr-x 9 root root 4096 Apr 29 2014 phpsysinfo -rw-r--r-- 1 root root 0 Apr 29 2014 robots.txt drwxr-xr-x 14 root root 4096 Apr 29 2014 roll-documentation drwxr-xr-x 3 root root 4096 Apr 29 2014 rss drwxr-xr-x 24 root root 4096 Jun 1 03:09 tripwire root@cluster:~# ls -l /export/rocks/install total 20 drwxr-xr-x 3 root root 4096 Apr 29 2014 contrib drwxr-xr-x 3 root root 4096 Apr 29 2014 rocks-dist drwxr-xr-x 17 root root 4096 Apr 29 2014 rolls drwxr-xr-x 2 root root 4096 Apr 29 2014 sbin drwxr-xr-x 3 root root 4096 Apr 29 2014 site-profiles The front end (the head node) has not been rebooted for more than 2 months, and I have some how configured the httpd for some tests! Now I see that something went wrong. Do you have any idea? Regards, Mahmood
