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Top Forums UNIX for Dummies Questions & Answers How-to boot server with no CDROM via serial connection to laptop Post 302254055 by Mariognarly on Monday 3rd of November 2008 01:40:56 PM
Old 11-03-2008
How-to boot server with no CDROM via serial connection to laptop

I have an x86 Sun server, with no CDROM drive and no OS currently loaded on it. I need to install CentOS on it... trying to figure out how to do that.

I've heard there are ways to connect to the serial management port, and mount a laptop's CDROM drive as a drive the server will recognize to install the OS from. Any ideas on how to do this? I have a serial management port on the server where I can get to OK prompt, and SC prompt.

I don't have a linux kickstart server to use, so that option is out. And I'm not sure if I can mount NFS volumes from OK and SC prompts. I don't think there is anything I can use on either prompt to configure/plumb the NIC to set that up anyway.

Any feedback would be greatly appreciated. Thanks!
 

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MKLNIM(1)						      General Commands Manual							 MKLNIM(1)

NAME
mklnim - make Linux Netinstall Image SYNOPSIS
mklnim outputfile [path-to-cdrom] DESCRIPTION
mklnim is a shell script that takes a SuSE, TurboLinux or a RedHat CDROM, or equivalent disk directory, and creates a network bootable image (NBI) that can be used with Etherboot (http://etherboot.sourceforge.net/) or Netboot (http://www.han.de/~gero/netboot.html). This NBI, when booted via the network, will make the target computer behave just as if a CDROM boot (TurboLinux), or a floppy boot (RedHat and SuSE) had been selected. A conventional install can be done from this point onwards. There are several occasions when this technique is useful: 1. It can be used to quickly boot a target computer when the floppy loading is very slow. 2. In the case of TurboLinux, it loads the CDROM initial ramdisk which does not require any further floppy loading. In the case of RedHat, it only loads the floppy initial ramdisk which does not contain the material in the supplementary floppy, and may require more floppy insertion. 3. It can start the install from a floppy of any size, not just 1.4 MB, or even from a floppyless machine, if one has a boot ROM (providing no further floppy access is required). 4. It could be used as part of an automatic installation process. Naturally, all this assumes that the infrastructure for diskless booting (bootp and tftp servers) has been set up. BUGS
If supplementary floppies are required, this script doesn't include that material in the network boot image. Please feel welcome to fix this problem. SEE ALSO
Etherboot tutorial at http://etherboot.sourceforge.net/ COPYRIGHT
mklnim is under the GNU Public License AUTHOR
Ken Yap (ken_yap@users.sourceforge.net) DATE
Version 0.4 April 2000 25 April 2000 MKLNIM(1)
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