Looks like your MBR might have been corrupted. This should not have happened, but CentOS 4 yum update once corrupted my "rpm" package. I still couldn't figure out how that happened.

Before you take the easy way out by reinstalling the CentOS, I suggest you try to repair the MBR using the emergency disc (CentOS disc #1). Basically this involves booting from your emergency disc, chrooting into your root partition, then executing the grub-install command.

I don't have time to go through the detailed steps, but you may want to bring your computer to Michael's lab. He has generously set up a time slot of between 10:00 to 12:00 this (probably every) Saturday doing pro bono Linux tech consulting work. Wayne


Blake Vance wrote:

Youch!

Older NEC 333 MHz, 192 MB RAM PC had been chugging along with CentOS 4 until I ran up2date. After retrieving all 119 MB of openoffice.org-il8n-1.1.2..., PC hung (mouse/KB nonresponsive). Reboot yielded "Press <Ctrl-B> to select MBA boot method [2 options] (Default is PXE)".
Option 1 for boot using TriROM:
"MSD: no reply, then Rx2 Rx2 ... File server could not be found" Option 2 using Preboot Execution Environment (PXE):
"DHCP MAC ADDR: 00 10 4B 39 03 D0
PXE-E52: No IP address received from DHCP or BOOTP.
PXE-M0F: Exiting PXE.
Operating System not found"

Any suggestions, before I reinstall OS? Might I have been running up against a memory shortage on the package retrieval?

TIA,
Blake
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W. Wayne Liauh, Ph.D., J.D.
Attorney and Counselor at Law

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