Ubuntu :: How To Avoid A Hard Reboot
May 17, 2011
on a Vimeo video in Firefox, and my computer became "partially frozen". The video stopped, but the audio continued to play to the end, but I couldn't clear the video. I pressed ctrl-f2 to switch to my other desktop, but it just brought up a blank screen, and switching back makes no difference.As it stands I have a black screen with my mouse cursor on it (I can move the cursor, yes). I'm new to linux, and I want to know if there are any keyboard shortcuts I could try to fix this. I'd rather not hard reboot whenever I run into a problem, I just don't know the terms to google for
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Oct 21, 2010
store the dns cache over the reboot in linux(which should not flush the dns cache on reboot).
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Oct 21, 2010
idea to store the dns cache over the reboot in linux(which should not flush the dns cache on reboot).
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Feb 4, 2010
I have gotten my touchpad and wireless working after a day of research and help on this forum. The bad news is that I need to enter these commands every time I boot up. I know there is a way to load these commands into the startup. But I am not quite sure where to put them.
# modprobe lib80211
# cd hybrid_wl
# insmod wl.ko
# ifconfig eth1 up
# synclient tapbutton1=1
# synclient tapbutton2=1
# synclient tapbutton3=1
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Mar 1, 2011
I'm configuring an HP Mini 110 (wireless BCM4313) to use it as a small Access Point (ad-hoc mode).
I want to make my configuration reboot friendly. With what I have right now, as soon as I reboot the laptop, the wireless interface configuration isn't correctly setup. I have to do "ifdown eth1; ifup eth1" manually.
Here is what I have in /etc/network/interfaces for the wireless interface code...
So the question is how can I avoid having to bring down and up the interface?
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Sep 24, 2010
my pc freezes and nothing can be done but hard reboot. I apologize in advance if this thing is brought up before and for the length of my post. I have found a lot of interesting relevant stuff like URL... and URL... but couldn't resolve it.I am new in Linux and already my main choice of OS.I have Ubuntu 10.04, fully updated. Runs on an ASUS P5Q (listed in Ubuntu compatible m/b's) with ATI Radeon 4800 (don't know if relevant). In the last week approximately, I have realized that in seemingly random times the system freezes. I am not absolutely sure if this was something that could have happened earlier on, but it just didn't occur. It appears that this started after some update. The interesting part is that it came to my attention that it is 100% certain that will freeze during a file synchronization analysis between usb hdds with Unison (!). This is something I didn't use to do, and of course I have never been able to complete since I have this situation.
After that, two things come to my mind. One is, I wonder why the sync process provokes this, and if has got anything to do with all things said about X freezes, ACPI or hardware acceleration. Second, I wonder how on earth I could locate the relevant updated packages and rollback. You see, last week I remember at least 4-5 updates with 5-10 packages updated. Running through the dpkg log doesn't help me a lot, the list is fairly big, and I believe for a result not exactly guaranteed
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Jan 26, 2010
I'm running 9.10 on a Dell IM1012-6780BK netbook (very nice and snappy, btw). I was in the process of installing the ubuntu-restricted packages (apt-get was halfway into setting-up libtwolame0) when the machine locked up and I was forced to do a hard reboot. Now, at the CLI, I try to remove the corrupted package before re-installing, but I get the following errors: (they seem to be persistent, no matter what I'm trying to install/uninstall via apt-get...$ sudo apt-get --purge remove ubuntu-restricted-extras
Reading package lists... Done
Building dependency tree
Reading state information... Done
[code]....
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May 8, 2010
I just got ubuntu installed for the first time, I tried mounting my hard drive to my desktop so i can have easy access to it, but when i restart ubuntu it always dissapears and i have to go to places then click on the hard drive again to mount it to my desktop.
Is there a way of keeping this on the desktop without having to do this all the time? I have the latest ubuntu version.
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Jun 13, 2010
My computer wouldn't come out of sleep mode, so I had to shut it down improperly. Now there's no ethernet network connection. The NIC works as I can start the computer by wake-on-lan, but somehow Ubuntu no longer sets up a network connection on it.
The green light on the NIC is lit up and blinking. I have changed no settings. It used to get an IP address from the DHCP no problem, but ifconfig now only shows 127.0.0.1.
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Nov 15, 2010
I've been having issues with my ubuntu server (10.04 LTS) lately. Every once in a while, anywhere from 3 days to a month or more, the server will just disappear from the network. All manner of trying to reach it from the outside fails, even from the LAN. Since it's headless, this is kind of problematic. After a hard power down or reboot, the server will always come back online, but this is very annoying for a remotely administered server.
What should I look for when trying to determine why the server keeps going offline? I can't tell if there are any other issues like a hard lockup or anything, just that it is not on the network anymore when this happens.
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Feb 5, 2010
After a reboot (why did I do that???) one of the hard drives on my machine refuses to mount with the following message:
Code:
mount: wrong fs type, bad option, bad superblock on /dev/sdd1,
missing codepage or helper program, or other error
[code]....
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Apr 26, 2010
I installed Fedora 12 and it won't reboot from hard drive. It boots only from installation CD. I have motherboard MS 6163 and graphic card Nvidia TNT2 pro. Do I have to change something in BIOS setup? If I need to install another driver for NvidiaAnd, please tell me if some other Linux package is better for my hardware.
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Aug 29, 2010
when I leave the computer and xscreensaver - which I have a link to in my .kde/Autostart directory - starts up, all hell breaks loose. I don't know if my desktop compositing is doing this (I have an ATI Radeon x1200 card with stable Mesa GL, seems to run compiz just fine) or if one of the individual screensavers is b0rked but it always seems to end with me coming back to a still-life shot of my computer screen with a BRIGHT BLUE translucent stripe across the top. Alt-SysRq-K doesn't do anything from that point on, Ctrl-Alt-Del doesn't do anything and I have to hit the power button. I don't have multiple screensaver programs running at once, I've already disabled the native KDE saver. I never had this problem with GNOME, but couldn't enable compositing on it either.
FYI for anyone that feels the need to ask, I use the "radeon" driver and my glxinfo is thus:
Quote:
bash-4.1$ glxinfo
name of display: :0.0
display: :0 screen: 0
direct rendering: Yes
code....
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May 28, 2011
I have a computer with 2 internal hard drives and one of them doesn't show up in the bios until I reboot. Almost every time. Does this mean the drive is going to fail or the cable is bad or what?
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May 30, 2011
Every time I reboot my server, one of my hard drives drops out of the RAID5 array. I'm pretty sure that there's nothing wrong with the drive itself. I bought all three drives at the same time, and they are identical in make/model/capacity. While the server is running, it's smooth sailing. However, whenever I shut down or reboot, I get an email message that the array is degraded. It's always /dev/sda1 that drops out of the array. I can always rebuild the array by adding the partition back in, but it's a bit of a pain. Any suggestions on how to troubleshoot this?
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Jan 26, 2010
Every time i reboot my computer my hard drive mount points keep changing which means the mount points i've put in the fstab wont work any more.
I'm using the same settings as i had before i upgraded the OS to what it currently is.
Im using fedora 12
My disk 1 for example would be as follows:
before: /dev/sda3
after: /dev/sdd3
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Jul 7, 2010
OpenSuse 11.2Firefox 3.6.6DownThemAll 1.1.1.0I am downloading Slackware 13.1 (32 bit) from Softpedia using the firefox Add-on, DownThemAll.My computer is not on a UPS, so if the electricity is off, how should I make sure after restarting the computer, the download continues from where it left rather than restarting the whole process again
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Jan 13, 2010
So I'm in need of VM'ing a couple OS's to keep from repartitioning and dual booting my desktop. The first I'm trying to boot is a 64bit version of windows (have XP and 7 disc, trying XP for now) as I need to convert some of my work's ancient programs that still use DOS functions.
I choose Virtualbox over VMware just for the sake of VB being in the repos. Install and initial config went fine, but when I try to start (run) the VM the screen goes black, then the computer completely stops responding and needs a hard reboot. Pasting what I believe to be the error part in the log. If you need the entire log I can email or host it - too big for a post. Kernel Version - 2.6.32-trunk-amd64. Debian Sid
Short Version:
Code:
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Feb 1, 2011
i actually registered here because i'm done with my knowledge of linux, errors which cause my sys to hang and/or reboot randomly after some time. They occur while the system is under heavy cpu, heavy mem-read-write, mediocre mem fill, heavy hdd io (for ~20 seconds every ~5 minutes).
problem background we ordered two identical PCs (specs below), one of them brought those sata errors quoted below from /var/log/messages, the other one runs flawlessly. Same Hardware and Software Configuration. Faulty one brought reallocated sectors right at start, mass seek errors, read errors. 1st try: swap cables, change bios mode ata_piix <-> AHCI. Didn't work. Went away for repair. Stupid Techie did only swap hdd, so problems occured again. Shipping for repair again. Board AND hdd exchanged. no more seek/read errors, no more reallocated sectors. But similar sata problems right after 3 days of previously described workload. Following logs are from after the last repair.
[Code].....
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May 4, 2011
I'm working with Linux 2.6.23 on an embedded device and am receiving the following error executing the reboot command.
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Oct 7, 2010
I am using sda1 as /, which is a bootable drive. I do not know if my problem is that I did not create a /boot drive. After removing the iso dvd, I tried to reboot and I get this back: -bash: /sbin/reboot: input/output error Then it returns me to the terminal prompt.
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Feb 12, 2010
i have just installed Ubuntu,i'am really concerned about security,i have no idea about linux.In windows, i use kaspersky internet security to protect the computer, so any time i want to log on my bank web, i use virtual mode or secure mode,and also virtual keyboard offered by kaspersky,i ve never had a problem,this way i think i protect myself against fishing.
Is there anyway to protect myself from the fishing attack in Ubuntu?
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May 15, 2010
specs: toshiba lappy
110gb hdd, 1gb ram, core 2 duo 1.6ghz, nvidia 7600
windows xp pro service pack 3
jaunty jackalope
my problem is: i wanted to repartition (shrink xp and create partition for data storage) my hdd using gparted live cd 0.5.2-9. everything went fine until i clicked exit and reboot. after the cd tray automatically ejected i got a flood of "VFS: busy inodes on changed media or resized disk srO". this doesnt stop until i press enter. after that it reboots normally and there is no problem with the os.
my questions: 1) is that flood anything bad, is there a way to avoid this. i read somewhere that the problem is solved when using the terminal sudo eject - then push back the cd tray - then sudo eject -t. i tried that but it said failed because gparted cd is in use.
2) the first time that happened i didnt know what to do, so it flooded like for 15min or more until i pressed enter. my question is if the flood is being saved anywhere on the pc so that i have to delete it?
and a question regarding extended partition: 3) i have 50gb left that i want to use for data storage. i read that you can only have one extended partition. so since there is already one extended partition from ubuntu, i cant have another one for windows? so i can only make the data partition as primary or is there another reason why the "create extended partition" is greyed out?
last question: 4) when i set up the partition for swap i made it 1032gb big but in gparted it shows 980.53mb. is that still enough or why is it like that because somehow the sizes of the partitions seem a bit different than how they originally should be. im actually used in seeing the size shrinking a bit but i found it weird that the ubuntu partition shows 4.76 when it should be 4.5gb. i know its not much different but im just curious to know why..
partitions order: windows - unallocated (-->data partition) - ubuntu (primary) - home folder (extended) - swap
in windows the partitions are shown as: windows xp (31,74gb) - unallocated (50,05gb) - 4,76gb unkown - 24,27gb unkown - 981mb uknown
in gparted: its almost the same, only difference: there is unallocated space (7 or 8mb) between home folder and swap
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Jul 13, 2011
I had a problem with Thunar in Xubuntu. As I often work with huge images, memory is consumed generating Previews. Disabling Previews seems to be very difficult in Thunar, as it makes use of external Thumbnailers. Another problem is making a file executable. I couldn't find out how to do that in Thunar. So I decided to change back to Nautilus, which solves the problems. In preferences it is easy to disable generating previews. But I was not able to get completely rid of Thunar. The folders on my desktop still would open in Thunar, although I set Nautilus as default browser. So the problem sometimes is still there. Uninstall is not possible, as it completely uninstalls xfce-desktop. Is there a way to avoid running both browsers at the same time?
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Feb 15, 2011
I'm working on a managed desktop at work with Scientific Linux so I decided to install latest Ubuntu 10.10 on my laptop, an Aspire 6930, and set it up so it dual boots with Windows Vista.
It boots for the first time,everything looks great and it asks me to update some programs.After it does that,I restart and I get a grub rescue message while there was a strange clicking sound coming from the hard disk. I reinstall Ubuntu through BIOS with a CD and I bring the system to the original state.
I can now boot either with Ubuntu or Vista but I don't dare update the programs it prompts me to as I fear it will lead to the same result. It's been like this for the past month and I was wondering if there is a way to know what actually caused the problem in the first place assuming that is has to do with a program that was updated.
Truth is that the specific model has this problem with the hard disk that makes that constant clicking. When running Vista I have a program called Notebook Hardware Control which lowers some settings and stops the clicking.When running Ubuntu, there isn't any. So is there a way to know which program can cause such an error and refrain from updating it?
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Feb 27, 2011
Is it possible to forbid that more then one user open the same file in rw mode? In windows when you open a file that another user is using, there's ad advise and you have to open it in read only mode
I installed ubuntu 10.04 desktop edition on 3 pc (there is not a server-client architecture). I installed samba.(and smbfs)
put the strings:
[name]
comment = ...
path = /...
guest ok = yes
read only = no
create mask = 0777
directory mask =0777
Computers that access to that directory do (on boot, with root privileges)
mount -t smbfs -o username="user",password="pass" //192.168.0.12/name /mnt/cartelladimontaggio
But if two users access to the same file, both are authorized writing on it! So changes made by one are lost when the other save.
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Apr 7, 2011
I use rsyc for synching files that I type with a server and every time I have to enter the server's password. Right now in my .bashrc file there is an alias like this code...
but can't find such a thing in rsync or ssh man pages. Does anybody know what I should do?
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Jun 24, 2011
I hav disabled the password on startup but the default still pops up and asks the password. How can I stop that. I use UBUNTU 11.04
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Feb 16, 2011
last -a shows server rebooted, how to identify the source or cause of reboot? thx reboot system boot Wed Feb 16 08:52 (02:0 2.6.21.7-2.fc8xen
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Jan 4, 2010
I wrote a c console-programme with should output a system beep.But I cannot hear any sound.Which setting of Ubuntu avoid the beep.
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