General :: Restarts From Power Failure - Lose Whatever Work Units That Have Started
May 24, 2010
I run computers that do distributed computing for cancer cures. I'm experimenting with running a version of Ubuntu that is specifically written for DC and can be run on bootable USB drives. The one I'm running now on USB works fine but there is one issue I need to solve. When I reboot the system or it restarts from a power failure I have to reattach the cruncher client(BOINC)to the each project and I lose whatever work units that have started. I don't have this problem if I use a HDD. I'm using an 8GB USB drive with 6GB of DDR3 12800 memory. Can someone explain to a linux novice how to overcome this issue?
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Jan 13, 2010
Will a Linux operating system lose data during a power failure as does a Windows operating system?
(If yes.) This has not come up before but I'm going to be doing some work I don't want to lose.
Could you either point me to a backup tutorial or give me the quick overview of preserving stuff with Ubuntu?
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Jan 6, 2010
I have a box running Lenny and boot with lilo. Today there was a power failure and now the system is stuck on Lilo ..It doesnt get passed that. I tried to boot in single mode but the same thing is happens. How can I fix this problem
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Oct 31, 2010
The other day I was in the process of updating an install of Debian Testing (Squeeze). It so happens that the power went out at just the wrong time. According to the dpkg log it looks like it was in the proccess of completing the postinst script for the kernel update I purged all the kernels that were installed and reinstalled the most recent version. Mind you, that the machine booted and appeared to be just fine when the power came back on but I had no gui. So after reinstalling the kernel I still didn't have a gui.So I proceded to purge and reinstall kdm, xorg, xserver-xorg & related, and anything else I could think of.All with out success.This machine has an xorg.conf file. I have edited that file to try the vesa driver instead of the intel driver, no joy. I have renamed that file to force a complete auto-configuration of the xserver on launch but no joy.
Code:
(II) LoadModule: "intel"
[code]...
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May 8, 2010
I'm trying to come up with a startup init script that will check to see if the system was shut down gracefully, or if it is rebooting from a poweroff or something similar?Anyone know of a way to check for this condition with the least amount of room for false positives or vice versa?My intial thought is just a startup script that will will check for a file on startup, and on a proper reboot/shutdown just touch the file. But id like to avoid that type of script if possible,
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Apr 19, 2010
I have a dell PE1750 server which would not boot up after a power failure. I am thrown to a shell for maintenance after showing an error in file system check. The server was running - Red Hat Enterprise Linux AS release 3 (Taroon). Please let me know if I can try to recover from this error by booting from the 1st CD of a higher version of linux like RHEL5. I ask this because I do not have the old media with which the system was setup. Can the use of latest OS CD cause any problem?
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Jun 3, 2010
I had a power failure during the portion of the upgrade after the reboot where it was upgrading the packages.I tried restarting the machine with the upgrade line in the bootloader but it says it cant find the bootloader. So I rebooted into the working install and ran preupgrade again, and after it reboots, it gives an error the it cant find "root" of the previous installation.even thought the machine boots and works, I cant tell what state I am in. the boot option lines, shows a fc12 kernel designation and the "about this computer" says "release 13"Also the add remove software doesn't show anything.
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Feb 3, 2010
I had a power failure, now Gnome will not completly start and just hangs almost there. another member of the family was at the computer and when it restarted and something like TomBoy was flagged as no working and the question was asked if they wanted to delete reference or not , so they said yes now Gnome still will not finish loading. How do i repair from the console prompt?
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Aug 21, 2010
I was upgrading my ubuntu(9.10)/xp machine to ubuntu(10.4)/xp . but there was a power failure and was running in backup for 15 min. But after that the system shutdown automatically. Now when i boot, grub appears and after selecting the ubuntu partition i get a error saying cannot find device.
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Jan 14, 2011
While using my computer the other day (I was sending an email) it suddenly turned off. I didn't get any low power warning, but I was running on battery and had my iphone charging from a USB port.
As I didn't think there was low battery, I just turned it back on again. As it was booting I saw the battery light flashing, indicating low power. I went to get the charger, but before I got it, mid boot-up it turned off again.
This seemingly damaged something hard-disk-wise.
Upon turning it on again it dropped into busy box with some message similar to this:
Quote:
No init fount. Try passing init= bootarg.
BusyBox v1.13.3 (Ubuntu 1:1.13.3-1ubuntu7) built in shell (ash) Enter 'help' for a list of build in commands
(initramfs)
That's not the actual message (copy pasted from another post) but the message is VERY similar to that.
If I "exit" busy box, I get a load of message about "kernel panic" before it freezes up.
I have booted a live USB (what I am using now). I thought since it wasn't cleanly unmounted, simply mounting and unmounting would do the trick. I was wrong.
Code:
ubuntu@ubuntu:~$ sudo fdisk -l
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
[Code].....
I had previously ran e2fsck (after checking it was unmounted) but it wouldn't run also because it was reporting that the device was already mounted, busy, or being exclusively used by a process.
I don't want to do any more for fear of causing further damage.
I am astounded that such damage can be caused so easily!
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Feb 11, 2011
Running 10.10 After a main power failure I can't boot.
It says:
...........
[sdb] Attached SCSI removable disk
[sdc] Attached SCSI removable disk
[sdd] Attached SCSI removable disk
[sde] Attached SCSI removable disk
and stops.
I get a (initramfs) prompt and have no idea what to do with it.
Allready tried to install 10.10 again from a CD. But it also hangs immediately when it starts to install. The liveCD feature works OK and I can access the hard disk. I tried to update the initramfs with the liveCD but it says I can't write since I have only "read-only" access. But if I do "sudo nautilus" I have full access to the disk.
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Jul 14, 2011
I have the old version 8.10 installed in my laptop. The laptop already some battery issue and after the power failure i cannot access the external usb drives anymore.I have ntfs-configuration installed and do not know how to access the drives using the tool.Every time i try to access the drive it says that i do not have the privilege to mount the volume.
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Sep 19, 2009
I had a power failure the other day and my server shutdown abruptly. After bringing the server up I noticed that the /var partition came up as read only. I was not able to edit the crontab, not able to write to files within /var/log/ and do other write operations within /var.
I did a mount and it showed that /var was mounted read and write but when trying to run certain operations the system was still saying that it was read only.
[Code]...
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Jun 23, 2011
my fedora 14 get strucked on booting after a power failure..what did i do ? i cant open my desktop.my fedora 14 get strucked on booting after a power failure..what did i do ? i cant open my desktop.
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Jun 21, 2011
the power on my street went out overnight, and I came home to a rebooted computer at the command line. I shut it down and rebooted again, also tried the failsafe mode, but it keeps going to the command line. Looked in the BIOS and it didn't see my hard drive settings. But I can see the HD fine when I booted using the live CD (that's how I am able to post here
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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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Jun 23, 2010
I'm using Ubuntu 10.04 64-bit, which is installed to a second hard drive on my desktop. Earlier this afternoon, there were two 10 second power outages in my neighborhood. The first caused the system to restart with no effect, but after the second outage Ubuntu no longer boots properly. The problem is this: When I boot, I get to the grub screen. I have tried choosing four different options (the most recent kernel, a slightly older kernel, and the recovery mode of each). For each, kernel begins loading, but at a certain point the input to the monitor dries up, and after a few seconds the monitor enters standby mode. When I boot into recovery mood, the last message I see before the screen goes blank includes "udev starting version 151" followed by three lines that read "assuming [something that I can't read before the screen goes blank]." The computer itself remains on, but I have no way of knowing exactly what it is doing.
There seems to be no hardware damage as I can boat into Vista, and I can also boot into 10.04 from a USB. I've used fsck to check the partitions on my hard drive and the test came up clean for all of them. Since I only installed 10.04 a week ago, I could just copy the handful of useful files I have to my external drive and re-install, but I'd like to get some experience troubleshooting this problem. My first assumption is some kind of problem with the video drivers or GUI.
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Feb 12, 2011
today my desktop crashed due to power failure. When i again started the machine and tried to boot Ubuntu i m getting the following message in command screen:- "Minimal BASH-Like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists is possible device & file completions."
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Mar 8, 2011
My pc had hardware malfunction; power supply interruption. At this moment it is working stable. My Windows 7 installation is ok but Ubuntu Maverick which I used during crush has malfunction. When I start to boot it looks like this: I had to make a foto so you all can see the problem. all my important files are stored on Ubuntu partition..
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Oct 29, 2010
Before to describe my problem I want to say that I searched a lot on the internet and I think I tried all the solutions provided by other users to similar problems.
I've got an IBM xSeries 346 server running CentOS 5.5 with all updates applied with yum.
The video card is an ATI Radeon (lspci says: 01:06.0 VGA compatible controller: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]).
Everything worked fine until a bad day where there was an environmental power failure and the server crashed.
I turned it on, I manually check the file system, some files went lost and after the reboot the X server didn't start.
After the first boot I had problem with /etc/rc.d/rc.sysinit, sbin/multipath.static and /dev/cpu/microcode, I solved them and now the message it shows is:
"Failed to start the X server (your graphical interface) It is likely that it is not set up correctly. Would you like to view the X server output to diagnose the problem?"
I choose OK and it appears an empty log, if I go in /var/log/gdm and I do an ls -al:
total 0
-rw-r--r-- 1 root root 0 Oct 28 04:44 :0.log.4
-rw-r--r-- 1 root root 0 Oct 28 04:44 :0.log.3
-rw-r--r-- 1 root root 0 Oct 29 04:52 :0.log.2
-rw-r--r-- 1 root root 0 Oct 29 04:52 :0.log.1
-rw-r--r-- 1 root root 0 Oct 29 04:52 :0.log
So a lot of empty log files.
I press enter on the OK that appears at the bottom of the screen and it says: Would you like to try to configure the X server?
I choose Yes, I enter the root password and appears the following messages:
Couldn't start X server on card 0
Couldn't start X server with old config, trying with a fresh configuration
Then another messages:
Trying to restart the X server, I press enter on OK and it loops the initial message ("Failed to start the X server...)
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May 8, 2010
I have have recently installed Ubuntu 10.04 on my desktop pc and set-up a shared folder and a shared printer from the Ubuntu desktop. My shared folder works completely fine and is easily accessible by my windows xp laptop. My printer sharing initially worked fine and I was able to connect and print from the windows xp laptop. Unfortunately, after a reboot of the ubuntu computer the printer is no longer found by the laptop (the shared folder, however, still works fine).
I can get the shared printer working again by using the following command to restart Samba: -
sudo service smbd restart
After restarting Samba, suddenly my laptop can see the printer again. I don't particularly want to have to restart Samba every time I boot up my computer. I understand I could probably make a script that would restart Samba automatically after booting or logging in, but I would rather fix the actual problem than use a workaround like that.
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Apr 27, 2010
Unfortunately my laptop was powered off whilst the Updater Applet was doing an update. Now, after a reboot, the system always fails when updating. Neither the Updater Applet nor yast does succeed. To me it looks like some involved DB got corrupted. The error messages are shown below.
Code:
Subprocess failed. Error: RPM failed: error: package systemtap-runtime-0.9.9-2.4.i586 is not installed
Code:
Subprocess failed. Error: RPM fehlgeschlagen: error: db4 error(-30987) from dbcursor->c_get: DB_PAGE_NOTFOUND: Requested page not found
error: error(-30987) getting "" records from Requireversion index
error: db4 error(-30987) from dbcursor->c_get: DB_PAGE_NOTFOUND: Requested page not found
error: error(-30987) getting "" records from Requireversion index .....
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Apr 24, 2010
have Karmic Coala runing on an IBM thinkpad X.41. Works great. My home network is all ethernet so I have a router , CAT5 cable to laptop.A coupleof times I've had power outages The laptop carries on as it's on battery power. When the power comes back , the router restarts, it reconnects after a few minutes but the laptop doesn't reconnect to the network seamlessly. On some other Linux distro's I've had running /etc/init.d/network restart will refresh everything. On Ubuntu I have /etc/init.d/networks but running restart In the end I needed to reboot the laptop to get the network back on.Perhaps this is a power management issue with the laptop ethernet card i.e losing power powers down the card and it never comes back up properly.
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May 17, 2010
When I tell the computer to go to sleep and there is a power failure the sleep state is lost. Is there a way to prevent this? I already know about hibernate and I'm using it but sleep is faster and there is no complete loading of the computer (BIOS, Grub and so on) it just goes directly into the desktop. As far as I know the sleep state is done when everything is in RAM and the computer is turned off but the RAM sticks still receive power. Is this true?
P.S. Can this be done with hibernate and SSD drives? As far as I can tell from what I've read it will be the same but with no state loss. Is this true?
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Sep 12, 2010
I was updating the kernel and left the computer to let it do its business. There was power failure and I don't know if the update completed or if it was in the middle of it. Now if I start the computer, it freezes up at the login screen. I tried to recover from grub, by selecting "Ubuntu, with Linux 2.6.32-21-generic (recovery mode)". There were no prompts for input after this. The recovery screen is not updating anything after:
[2.348886] EXT4-fs (sda1): INFO: recovery required on readonly filesystem
[2.349015] EXT4-fs (sda1): write access will be enabled during recovery
[2.577641] EXT4-fs (sda1): recovery complete
[2.578072] EXT4-fs (sda1): mounted filesystem with ordered data mode
Begin: Running /scripts/local-bottom ...
Done.
Done.
Begin: Running /scripts/init-bottom ...
Done.
When I come out of that screen (ctrl-alt-del), the problem repeats.
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Nov 13, 2010
Running Ubuntu headless server 9.10 with a RAID 1 on ext3. After a power failure (UPS power button was hit accidentally), I logged into the system via ssh and found that I had lost all data since my last reboot, which was 4 months ago. It was as if I had a perfect snapshot of my machine from 4 months ago. Everything, database files, logs, all report as if the machine had been off for 4 months. Fortunately, I have quality backups of all my data so I am able to recover, but I have never had such a problem before and I cannot figure out what happened.
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Apr 23, 2010
I am having a RAID5 with a spare(total 4 disk).then the steps which lead me to a problem:
1. i was doing I/O on the array.
2. i pulled out a drive manually. So the spare drive took care of the failed one and started rebuilding. then
3. in the, mean time i pulled out the power plug of my NAS box.
4. After power up i saw my array was not active(by -D command option of mdadm). then
5. i executed: mdadm --assemble --scan /dev/md0 it gave me
I checked into the linux source and found that bd_claim is a function inside fs/block_dev.c and it failing due to which lock_rdev function (calling bd_claim in md.c) is failing and we are not able to start the array.I don't know why my RAID is not live after power on.
Plese help atleast can i save my data?
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May 2, 2010
I learned yesterday that doing a massive upgrade on my system while moving was a BAAAD idea.The upgrade process was going along just fine, it was all downloaded and was actually installing that last time I saw it. I unplugged my laptop to move a bookcase out, and completely forgot to plug it back in. After I got back from moving a load, I found my computer was off. I tried to boot up, and I got an error that kind of freaked me out. It reads as follows:
Code:kernel panic not syncing vfs unable to mount root fs on unknown-block(0,0)I'm able to get to grub just fine, and my windows partition loads up just fine, but any of the linux kernels fail similarly when I attempt to load them.I'm sure that I can fix this, I just have no idea how. Probably has something to do with a live cd.
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May 4, 2010
I use an ADSL connection which I 'dial' using the Network Manager. My laptop is connected to the modem through an ethernet cable.
The thing is the place where I stay is prone for power failure. So the modem goes out with the power. It comes back on within a minute when the power is restored but Network Manager doesn't seem to automatically re-establish the connection after it is lost once. I have to manually do it. Hence most of my downloads do not get done.
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Jul 23, 2014
Yesterday something has happened with power supply, so 2 of 3 PCs has shut down. And now my debian pc doesn't respond to multimedia (volume to be precise) keys, leds also doesn't work. Other keys are fine. Tried xev, but it doesn't respond to multimedia keys either. I have dual boot with Win7 on this machine, and it works fine with multimedia keys.
I believe this is a clue:
Code: Select all[ 22.324109] generic-usb: probe of 0003:04D9:1702.0004 failed with error -110
uname -a:
Code: Select allLinux sharlin 3.2.0-4-amd64 #1 SMP Debian 3.2.60-1+deb7u1 x86_64 GNU/Linux
dmesg:
Code: Select all[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.2.0-4-amd64 (debian-kernel@lists.debian.org) (gcc version 4.6.3 (Debian 4.6.3-14) ) #1 SMP Debian 3.2.60-1+deb7u1
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-4-amd64 root=UUID=57fa72ea-ce79-4da0-a74d-2ffee8573437 ro quiet
[ 0.000000] BIOS-provided physical RAM map:
[Code] ....
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