CentOS 5 :: Edit Bios - Compaq Evo 5.4 Web Server Fails To Restart From A Power Outage
Jun 7, 2011
I have a small problem on my Compaq Evo Centos 5.4 web server. The web server runs just fine, the problem is it fails to restart from a power outage. Simple edit the BIOS. No! For a reason I can't think of the keyboard stops working after a few key strokes following the F10 to enter BIOS setup. Then its a power cycle. If left to BOOT the PC and keyboard are fine. After hearing about viruses which get to the BIOS I will ask can NIX get that far so I can adjust the Power ON?
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Dec 22, 2009
Installed new APC Back-UPS CS 350 on single server running openSUSE 11.2 64-bit and configured NUT 2.4.1 (SUSE package) according to instructions. When testing, NUT shuts down the server correctly and instructs the UPS to power down. UPS does so after some 20s delay, everything without errors. But after restoring main power, even after waiting for 1/2h UPS does not by itself turn on again, all LEDs are dark. One has to manually press the UPS's power button, which makes server and monitor run again immediately. What could be wrong that prevents UPS from turning itself on again?
Below output of upsc:
[Code]...
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Sep 29, 2010
I have thought about it many times but just never found enough guts to attempt using it before..but necessity is the mother of invention so here I am.
I have a Dell PC with windows Xp that failed to restart after a power outage it went into auto restart and caught itself in a loop of restarts and wont see the hard drive so therefore will not start up in windows at all I downloaded feather Linux onto a cd and it does start the PC In Linux but I cant seem to figure out how to find the hard drives in the pc to get the info off of it
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Jun 7, 2010
After a power outage Ubuntu fails to boot. How can I resolve this ? Is there a safe mode method to resolve the booting problem?
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Feb 10, 2010
When power was restored after an outage, my server (running Ubuntu server 9.10) started back up & got stuck in the GRUB menu ("Version 1.97~beta 4" I think) - it didn't do that countdown & auto-select the top item like I'm used to. Just stayed there, and since the server is headless, I had to dig out my monitor & hook it up to see what was wrong.
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Apr 27, 2010
I have a issue that could get me fired, so I would appreciate your input. My knowledge about linux is limited
The company I work for has a Dell Poweredge 6850 that keeps pretty much everything (databases, websites, etc). The server had a Virtual Drive created from 2 Physical Drives. Since the HDD space was getting low, we got a new drive, inserted it, formatted and rebooted the system. But the system now refuses to start, giving an FAILED message, something related to EXT2 partition that cannot be read at /dev/hda1
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Oct 25, 2010
I have observed a problem twice now with Apache trying to restart but hanging somewhere in the process. This happens after a power failure; the machine comes back just fine, but not the web server. The machine is on a UPS, but occasionally it runs out of "juice" before someone can get to it (we have a generator for emergencies). When this happens, a ps indicates about three processes running that are trying to start Apache, but they just sit there - this time for three days since the power failure was on a Friday. I can fix this by killing those processes and doing an Apache restart - but that takes human intervention, which is not acceptable.
I suspect this may have to do with SSL, since when I do a manual restart it asks me for the SSL password. There must be some way around this so the system can recover on its own. This system's web site runs under SSL since it maintains medical information that must by law be protected. But it also could be life-threatening to someone if the system can't come back and as a result a person can't get help.
So I would appreciate some guidance as to what I could change that would allow for system recovery without intervention. I'm happy to provide any configuration file info, if you tell me where to look.
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Apr 29, 2010
I have just been told that httpd was not running on my Centos virtual server. It seems that my hosting company rebooted my server 2 days ago and that httpd restart failed due to:
Starting httpd: httpd:
Syntax error on line 213 of /etc/httpd/conf/httpd.conf:
Syntax error on line 2 of /etc/httpd/conf.d/proxy_ajp.conf:
Cannot load /etc/httpd/modules/mod_proxy_ajp.so into server: /etc/httpd/modules/mod_proxy_ajp.so: undefined symbol: proxy_module
I had worked around and forgotten about this some time ago. The problem arose because the most recent httpd update installed proxy_ajp.conf into /etc/httpd/conf.d which was then loaded on restart The trouble is I do not use mod_proxy (I think just to try and get a lean and mean web server) and proxy_ajp.conf does not check if mod_proxy is loaded before it tries to LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
Hence httpd fails to restart. RedHats's bug tracker lists this as an old issue (which was never resolved) [URL] My workaround was to rename proxy_ajp.conf to proxy_ajp.conf.orig so that httpd would start up correctly. However any updates simply reinstall proxy_ajp.conf and so IMO the problem needs to be resolved at source. how to ensure that httpd updates do not bite me in the future? Do I really have to run mod_proxy whether or not I need it?
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Jun 21, 2010
I have a slackware 12.2 server. We had some really rough storms this weekend that took the power out for many hours. The UPS that it was connect to gave up the ghost and the server went down hard. I powered up the unit and it some up fine but with no network. Ifconfig -a shows that it only knows about the lo interface. Both integrated gig ethernet ports are missing. I am not a slackware expert. Need to figure out what is needed to get it back on the network. dmesg | grep eth0 shows nothing. Nor eth1. ifconfig eth0 returns no such device.
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Aug 7, 2010
My computer is running really slow after a power outage. It was fine, then the power went out. Now it's *unabably* slow. The OS takes a long time to load, the simple calculator takes a few minutes to show up, Firefox doesn't even load at all before I give up. And it won't shut down normally. I have to use the power button.
So did the power outage fry somthing on my PC. Do I have ot replace RAM or the processor? Or is it a software issue? Do I have to do something as drastic as a reimage?
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Aug 3, 2010
A 2sec service interruption was enough to cold-crash my PC and its given me a few issues, most I have solved but Synaptic is freezing up. I can get into Synaptic if I go to the terminal and become root with sudo -i If I do it through Gnome it show a frozen-screen version of synaptic like the image I posted with this. Right after the outage (it cold-crashed my PC) I used to get a message box that would pop up when I tried to shut off the PC (I have enclosed images to illustrate) but I have since overcame that problem.
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Mar 16, 2011
So the power went out at my house recently, and my home theater PC seems to have taken a blow. We had it on a surge protector, which didn't blow so that's fine, but it keeps telling me its in low graphics mode, and I can't seem to fix it for the life of me. I could reinstall ubuntu, but I have a bunch of movies and music on that drive that I want to keep.
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Aug 12, 2011
My computer was on when the power went out. I am not able to boot into ubuntu 11.4 install since that happened. I also have debian 6 and ubuntu 11.10 installed on the same machine and both boot just fine.
The machine boots as normal but stops with the line "disconnected from Plymouth". After the machine just sits there with a blinking cursor. I cannot start another terminal. Is my only option to reinstall.
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Jun 8, 2010
I recently installed Lynx 10.04 amd64. Twice now, my entire file system has become unusable -- each time after a short power outage (2 seconds).
In the first setup, I had two primary partitions: 1) / that was ext4; 2) /home that was ext4.
In the second setup, I changed the /home to ext3.
Both times, after booting up following the power outage, I received a message saying that "serious errors" were found in /home. But, after several reboots, I was able to login and use the system. Then, some time later, I would started getting "Read Only" messages when trying to write to the file system.
fsck gave the following message: "/home terminated with status 4". I received numerous "I/O error" on sda messages.
My question: Is this vulnerability due to using ext4 or is it related more to something else in Lynx 10.04? Further, what can I do (other than buying a power backup device) to avoid my file system becoming unusable after a power outage?
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Jul 14, 2010
I come with questions to try out the wonderful forum support I keep hearing Ubuntu has! I figure this is a convenient time to ask, since I am soon to swap the UPS on my Ubuntu box. This all refers to Ubuntu 9.04. You see, not too long ago, I had a couple of power outages, and suffice to say, despite the efforts of my UPS, I didn't get to shut down my Ubuntu box properly on either occasion. After the first one, when I powered the computer back on it failed to boot. Some googling of the error message led me to find that the UUIDs Ubuntu assigns to things like hard drives, which are not SUPPOSED to change, had in fact changed. From an archived thread here I found out how to find out what the new ones were, and slapped them into my FSTAB hoping that'd be the end of it.
(Partitions/Drives affected: hda2, hdb) It wasn't. Ubuntu came up with new errors to throw at me. This time, it threw the "bad superblock/wrong fs type" error that I'm used to seeing when I fudge a mount command. It appeared to be the same anyway, it went by so fast I couldn't really read it, sure wish the pause button worked. The gui did finally load, but showed no sign of the affected drives.
I found that if I commented out the affected drives in the fstab, they would appear in the gui, ready and mountable and apparently just fine. I've double-checked the UUIDs. The new UUIDs I put in fstab match the new UUIDs that the vol_id command reports. What is wrong with my fstab? Why won't it mount them automatically? (I'll post both versions as an attachment)
Another minor problem is for some reason I can't get privoxy running anymore. I've temporarily taken to running the Windows version in wine. I seem to remember I had a helluva time getting the linux version to work in the first place anyway, so I think I'll just keep running the windows version in wine. Most importantly, what can I do to prevent this happening again? Debian Sarge never gave me such trouble (and my deb box suffered quite a few improper shutdowns too). Ubuntu's based on Debian. What gives?
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Feb 10, 2011
I am using ubuntu 9.10. in my area there are frequent power outage. So my wifi get disonnected as the router stops. And it asks for security code. So when power comes the router starts but i have to manually write the security code and connect to wifi again. how i can make the computer to auto connect to wifi after power comes.
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Jun 23, 2011
We got a power outage yesterday. When my PC went back on, I noticed the Date and Time display disappeared along with the System Tray. How do I get these back? By the way, I only see the icons for printer, networkmanager and pulseaudio applet on the Taskbar at the bottom.
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Feb 11, 2010
So yesterday, I my power went out on my desktop and when I rebooted, the screen resolution was stuck at 640x480. When I go to the display settings, no other higher options are available. Any suggestions?
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Aug 6, 2010
did an update from ubuntu 8 to 10.04, this has failed. At boot there is initramfs error with prior message saying.
Code:
alert /dev/disk/by-uuid/-the_uuid does not exist dropping to shell (initramfs) I boot to livecd and check disk uuid and compared it to the fstab and it is correct, is there anywhere else this uuid but have been corrupted or any issue that may cause this issue. note there was power cut during upgrade but this occurred when upgrade should have finished.
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Sep 24, 2010
Due to a power outage, my EXT4 file systems (which contain /usr and /opt) no longer mount at boot-up. They are, however, seen by disk utility in Knoppix, so I assume the data is still there and that it's just matter of making a connection to it.
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Jan 31, 2010
Sometimes either due to a power outage or due to lightning I turn off my Wimax modem and continue to use my laptop on the battery.Then when I turn the modem back on, there is no internet connection.Here's what I've tried:
1. turn off and on the network connections - right-clicking on the icon on the bar on top of my screen.
2. turn off and on the dsl-provider connection - no effect.
3. When I tried to re-do pppoeconf, it says that there's no response from the concentrator.
This has happened a few times in the past and the only thing I can do to go online again is restart the computer. And it works.Now on Windows, the double-computer icon showing a network indicates connectivity AND data movement. Unfortunately we don't have this on Ubuntu.I'm just after a restart and I'm online now. But I'd like to know if there's a way around this without having to restart.
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Oct 10, 2010
I setup a mythbuntu pc with an onboard card (eth0) so I could watch and listen to movies and music stored on my other pc in the basement. Everything worked fine until we had a power outage. I turned on the pc after the outage and had no networking.
I looked and saw no link lights. I verified the network port but plugging in a laptop. I got an ip and able to connect to the internet so the port is not the issue. I plugged in a pci 10/100 card (eth1) and booted up, got link lights, but no networking and not able to even ping the gateway. I setup a static ip in /etc/network/interfaces and added a route to the gateway/router. Still nothing.
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Aug 16, 2010
Our Sled 10.1 server is running as a VM on VSpher 4. After a power outage we can not log into the server we get the Error in Module message. I can however disable the nic card for the server in the vm console and the system logs in with no problem.
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Apr 27, 2010
I have a issue that could get me fired, so I would appreciate your input. My knowledge about linux is limited
The company I work for has a Dell Poweredge 6850 that keeps pretty much everything (databases, websites, etc).
The server had a Virtual Drive created from 2 Physical Drives. Since the HDD space was getting low, we got a new drive, inserted it, formatted and rebooted the system.
But the system now refuses to start, giving an FAILED message, something related to EXT2 partition that cannot be read at /dev/hda1.
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Aug 1, 2010
I have an HP Compaq nc4010 laptop, with Debian experimental installed on it.In the BIOS utility, I can view what they refer to as "battery information".Unfortunately, it's all horribly abbreviated, so I can only guess what the labels mean.Is there any way I can acces this same information from linux, preferably with full labels and/or descriptions?
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Feb 12, 2010
So this very (for me) important little package fails me once again. But this time it refuses to restart/start
This is the output:
Setting up openssh-server (1:5.3p1:-1)
Restarting OpenBSD Secure Shell Server: sshd: failed!
/dev/null is not a character device!
invoke-rc.d: initscript ssh, action "restart" failed.
[Code].....
The error is within the /etc/init.d/ssh script. ("error")
This is in squeeze so I can only blame my self, but.. This is one of the packages that fair and square should not fail to install/update/start/restart no mather what!
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Nov 22, 2010
I've had a 4x 400Gb Raid 5 running for exactly 3 years now. There's been plenty of power outages in that time and lots of resyncing afterwards but all has been good afterwards with no issues. Last week after a power outage and reboot I went to check the status of the resync and it only listed 3 hdds.
[Code]...
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Aug 1, 2009
how to setup RAID on a Compaq Proliant DL580 G1 Server. Currently there is no OS installed. I used the SmartStart CD but there is no option to setup RAID. When I put in the boot CD for CentOS 5 it recognizes individual hard drives not a RAID Setup.
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Feb 28, 2010
I built a home server (NAS/WWW/SSH/media server etc) and chose CentOS 5 as the OS (stability, easy of configuration).I was just about to start tuning the power consumption when I realised that the kernel CentOS uses is so "old" that it does not support the latest reduced power consumption enhancements that Linux has achieved in big strides in the recent past (we are probably still talking 6-12+ months ago e.g. tickless kernel)..
So my questions; 1) I know CentOS was maybe not meant for home servers (certainly its not its primary purpose), but if it is, any ideas of what kind of power consumption it takes (I know its relative) and if there are particular power consumptions that are worthwhile?
2) Do you recommend me compiling my own 2.6.21+ kernel from kernel.org or am I just likely to have compatibility issues (I really did not want to do that) or when is CentOS 5.4 supposed to have a newer 2.6.21+ version kernel?
Was it wrong of me in principle to choose CentOS for a home server when I am power conscious? (I don't have a low-power VIA processor either but a P4 so I am really just hoping to make do with software changes).
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Sep 12, 2010
My computer's fine, and is running Puppy Linux happily, but I'm having trouble entering my BIOS menu (I forget the access key, and no matter which keys I try, Puppy Linux boots up).
Is it possible to edit BIOS settings from a LiveCD?
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