Configuration
Checklist
- Login Node
Security Notes
ZeptoOS is completely configurable. You may choose to allow user login access, or restrict it. However you configure ZeptoOS, it is important to note that the default configuration from IBM is for the I/O Nodes to NFS mount the /bgl file system with full root privileges. This means that anyone who has root access on the I/O nodes can modify everything on the NFS server. On our machine, we have modified the service node to export /bgl read-only, without observing any adverse effects on the I/O nodes.
Configuring the Build
Download the bzipped file on the Bluegene/P login node. Extract the sources by using:
$ tar xjf zeptoos-20.tar.bz2
Change to the BGP top directory using:
$ cd BGP/
Then you can use the configure script to configure the site specific paths using:
$ ./configure
Just like ZeptoOS V1.5 on Bluegene/L where it was required to run a configure script,
Unlike ZeptoOS V1.5 on Bluegene/L where it was required to run a configure script, in ZeptoOS V2.0 for Bluegene/P we have an ncurses based make menuconfig option. The required paths can be configured issuing:
$ make menuconfig
