Difference between revisions of "NetBoot server principle"
| Line 5: | Line 5: | ||
=Requirements= | =Requirements= | ||
| − | To setup a PXE NetBoot infrastructure you | + | To setup a PXE NetBoot infrastructure you MUST have: |
* [[DHCP server installation | DHCP server]] | * [[DHCP server installation | DHCP server]] | ||
| + | * [[TFTP server]] | ||
| + | * [[NFS server]] | ||
| + | |||
| + | Optional: | ||
* [[DNS server]] | * [[DNS server]] | ||
| + | * [[Samba server]] | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
Revision as of 13:42, 21 August 2014
Requirements
To setup a PXE NetBoot infrastructure you MUST have:
Optional:
Overview of a NetBoot sequence
1. Client broadcasts a DHCPDISCOVER message.
2. The DHCP server responds with:
- the computer IP address,
- TFTP server address (called "next-server"),
- PXE boot filename to load,
- NetBoot root-path values.
3. The client sends a TFTP request to "next-server", asking to retrieve the PXE filename.
4. The TFTP server responds and sends filename to client.
5. Many things here:
- The client executes filename, which is in PXE format.
- The PXE menu will be display so the user can choose which kernel to load
- Then PXE loads the kernel.
- When the kernel executes, the root file system specified by root-path is mounted. If it's a diskless workstation then the client distribution will be mounted in NFS mode.
Diskless NetBoot
The following picture describes the same thing as before in the sequential order:
Note that you have to prepare the image before being able to boot on it. ^^
References
The 1st overview picture comes from the FreeBSD forum: http://www.nl.freebsd.org/doc/handbook/network-diskless.html
