Langue: en

Version: 17 september 2007 (ubuntu - 08/07/09)

Section: 8 (Commandes administrateur)


make-fai-nfsroot - create the FAI nfsroot directory


make-fai-nfsroot [options]


Create the FAI nfsroot directory as pointed by $NFSROOT in the config_file. This directory is necessary for the installation of Debian on remote clients using the FAI package. The config_file location is discussed in the OPTIONS below.

The exit code returned is 0 if all commands to build the root directory exited successfully and >0 if an error occurs.


Use CFDIR as configuration directory. Default is /etc/fai. You can also set the environment variable FAI_ETC_DIR.
-f config_file
Not supported any more. Use option -C instead.
Remove all kernels from NFSROOT. This is the same as calling aptitude purge ~nlinux-image inside the nfsroot.
Install additional packages defined in /etc/fai/NFSROOT into the nfsroot. Also copies all kernels from the nfsroot to the directory $TFTPROOT.
Preserve ssh keys. This will preserve the whole .ssh directory of the root account inside the nfsroot.
Do not divert update-initramfs during build of the nfsroot. This will slow down the creation process a bit. It was only added because Ubuntu will fail if the diversion exists.
Create verbose output on stdout.
Show simple help.
Attempt to recover a previously failed run of this command.


If you do not use NFS, you may still use the NFSROOT directory as a staging point for building the base installation tarball.


CAUTION! This is an advanced feature. You should be willing to open up an editor and browse the make-fai-nfsroot code to understand what each task does and how your use of the recovery option can be impacted by fiddling around with the stamp files.

You can call make-fai-nfsroot with the '-r' option to attempt a recovery of a previous run. As tasks are completed, stamp files are generated in /var/run/fai/make-fai-nfsroot. As each task is called in recovery mode, the stamp file is checked. If it exists, the task is skipped. This will save you much time during your initial install and debug phase. It is not a very sophisticated mechanism but it can help you on updating the nfsroot as well. For example, if you want to update the kernel that is installed, remove the following stamp files: install_kernel_nfsroot_stamp, setup_bootp_stamp, setup_dhcp_stamp.

The order in which the stamp files are created are as follows:

Debootstrap was called successfully.
Created after successfully calling debootstrap plus a couple of other tasks.
The packages in $NFSROOT have successfully been upgraded with apt.
New packages have been installed with apt as specified by the $NFSPACKAGES environment variable in /etc/fai/fai.conf.
FAI copies a base of files to the NFSROOT directory.
The SSH environment is set up. You could probably remove this stamp alone to refresh your ssh setup.
This stamp file is created when all the preceeding steps have been taken. You have a base nfsroot directory. All you need now is the kernel and the BOOTP or DHCP setup.
The kernel you specified in $KERNELPACKAGE has been installed.
setup_bootp_stamp | setup_dhcp_stamp
Your kernel was either BOOTP or DHCP. The appropriate setup has been completed.


This program is part of FAI (Fully Automatic Installation). See the FAI manual for more information on how to use make-fai-nfsroot. The FAI homepage is
make-fai-bootfloppy(8), exports(5), nfsd(8), fai-setup(8)


The FAI configuration file.
The configuration file for make-fai-nfsroot.
Directory containing shell scripts to be sourced at the end of make-fai-nfsroot for additional configuration of the nfsroot. Can be changed with NFSROOT_HOOKS.
Copy this file to the NFSROOT.
Stamp files used for recovery.


Thomas Lange <>