03-22-2010
Unattended disk image deployment?
Hi
I need a system that allows a PC to PXE boot and then fully unattended deploy a diskimage created from a Linux system with identical hardware and then reboot when finished. I have been looking around but have not found a tool that is capable of doing this without too many bells and whistles, all that i need is 1. PXE boot 2. deploy image 3. reboot and nothing more, i of course will need to manually PXE boot the PC. The only solution i can think of now is to build the system myself with a PXE server and some shell scripts, but i am not sure on how to do this. Preferable the system should be filesystem aware to avoid transferring 100GB when the used amount of space is only 2GB on the system that should be cloned but the disk size is 100GB
Any ideas on how to archieve this?
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reboot(3C) reboot(3C)
NAME
reboot - reboot system or halt processor
SYNOPSIS
#include <sys/reboot.h>
int reboot(int howto, char *bootargs);
The reboot() function reboots the system. The howto argument specifies the behavior of the system while rebooting and is a mask con-
structed by a bitwise-inclusive-OR of flags from the following list:
RB_AUTOBOOT The machine is rebooted from the root filesystem on the default boot device. This is the default behavior. See boot(1M) and
kernel(1M).
RB_HALT The processor is simply halted; no reboot takes place. This option should be used with caution.
RB_ASKNAME Interpreted by the bootstrap program and kernel, causing the user to be asked for pathnames during the bootstrap.
RB_DUMP The system is forced to panic immediately without any further processing and a crash dump is written to the dump device
(see dumpadm(1M)) before rebooting.
Any other howto argument causes the kernel file to boot.
The interpretation of the bootargs argument is platform-dependent.
Upon successful completion, reboot() never returns. Otherwise, -1 is returned and errno is set to indicate the error.
The reboot() function will fail if:
EPERM The {PRIV_SYS_CONFIG} privilege is not asserted in the effective set of the calling process.
intro(1M), boot(1M), dumpadm(1M), halt(1M), init(1M), kernel(1M), reboot(1M), uadmin(2)
22 Mar 2004 reboot(3C)