Ubuntu server and power off

[Allen]

Support,
I guess I didn’t word it properly because I have been getting email thinking
that my machine is not booting up properly which is not the case. When I
install wubi or any other form of the latest Ubuntu, installing it while in
windows it installs and ask to reboot to finish the install. I ok the reboot
and then a Ubuntu interface like desktop shows for a few minutes then goes
to a black screen with this message:
Gave up waiting for root device, Common Problem:
-Boot args (cat /proc/cmdline)
  -Check root delay = (did the system wait long enough?)
  -Check root= (did the system wait for the right device?)
-Missing modules (cat /proc/modules; ls /dev)
ALERT! /dev/disk/by-uuid/E83C03C23C038AB0 does not exist. Dropping to a
shell!

Busy Box v1.18.5 (Ubuntu 1:1.18.5 – lubuntu4) built-in shell (ash)
Enter ‘help’ for a list of built-in commands
(initramfs__

ACBess


-----Original Message-----
From: ubuntu-users-bounces at lists.ubuntu.com
[mailto:ubuntu-users-bounces at lists.ubuntu.com] On Behalf Of Frank
Sent: Monday, May 07, 2012 11:27 AM
To: ubuntu-users at lists.ubuntu.com
Subject: Re: Ubuntu server and power off

On Mon, 2012-05-07 at 09:31 +0200, Antonio Fernández Pérez wrote:

> If the machine will be shutdown by power button, what effects could to 
> have?

If by "shutdown by power button" you mean "press and hold the power button
until the PC is turned off" (the equivalent of "brutally pulling the plug",
that's probably not a good idea. According to Murphy's Law, sooner or later
some problems on the hard disk can appear, especially if the power-off
happen while there is data to be written on the disk.

You can install ACPI (sudo apt-get install acpid). Your server will detect
when the power button is pressed and it will shutdown gracefully and
correctly your server.

Check google -> "ubuntu server shutdown on power button".








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