I was working in Ubuntu and all of a sudden the menus became unresponsive.I made a hard boot and then I was unable to boot.It said ''read error'' ''Please insert..... I put the ubuntu rescue cd (was mentioned in this forum) and tried to boot up with that.It booted up and I wrote'' configfile /grub.cfg'' but the kernel menu did not came up. I put the ubuntu installation cd booted up but there was no restore option.There were 2 options install and try live cd.I chose try the live cd option.And after that I shut of the PC. When I tried to boot up normally it started as if nothing had happened. Now I am really scared and want to find out what happened, if that happens again what am I going to do? I do not want to shut of the computer before I understand and correct the reason which caused that. I would also like to learn what to do if the system becomes unresponsive again.In Windows we were doing ctrl alt and del.
I can help with the last issue. Ubuntu used to use ctrl-alt-backspace to log out, but changed it for some reason that people may hit that key combination by accident (?). To restore this combination: system-preferences-keyboard-layout-options-key sequence to kill the X server. Just check the box.
Cet, Try and recall what you were doing before your gui locked up, are you using latest video drivers for your system? Enable the x server kill key and remember, if that don't work, in UNIX and Linux, you can always safely reboot by hitting the magic sys req key combo, take a look a this link and print it out. http://www.ubuntugeek.com/how-to-use-magic-system-request-keys-in-ubuntu-linux.html
Cet, what bad luck. Looks like you will need to again install grub2 to dev/sda using the live cd. Boot with live cd and mount /dev/sda. Then do: sudo grub-setup -d /media/49441cd5-35e9-47fb-8934-64809ec75ece/boot/grub /dev/sda Test to see if you can now boot. If anyone has further suggestions plse. let Cet know soonest. Edit: If you use rescue cd and enter : grub> linux (hd0,1)/vmlinuz root=/dev/sda1 grub> initrd (hd0,1)/initrd.img grub> boot do you also get nothing ?
Thank you.I did it. I clearly remember that: after the last update of stable chrome I saw 2 chrome entries in the internet section.I think first was the one I created and the second appeared after the update.I wanted to use the system-preferences- main menu to clean one of the entries.But clicking on main menu did nothing.I tried it twice and then I tried other menus, all were not responsive.I did not know those key combinations to stop Ubuntu and I put the power off. I do not have any video drivers. But as I stated in my first post I was able to boot up again as nothing has happened after using the live cd.I tried to boot up 7 times.Now everything seems okay.I did not restore grub2. Something catches my attention.When I click on the system-preferences-main menu it takes some time for the window to come up.
Sorry I didn't see this I wonder why the rescue cd doesn't work for you. Did you test it right after making it ? Maybe the burn was not good ? Could you try again and at the grub prompt type:- grub> linux (hd0,1)/vmlinuz root=/dev/sda1 grub> initrd (hd0,1)/initrd.img grub> boot Regards
Ok, I will make another rescue cd. So what will happen after this? Am I supposed to see all the kernels and boot options, and how do I shut of the computer safely after that?
one thing more you can do if you system hang alt + ctrl + F2 or F3 ......etc till F7 give you cli interface from there you can type login root password and then init 0 or halt to shutdown system to get back to gui from command mode user interface alt + ctrl + F7
You will see lots of scrolling text (booting text) and then you will boot into Lucid using latest kernel. The configfile /grub.cfg is nicer to use. Make a new rescue cd after every kernel update otherwise it will not find core.img
If you are not dual booting, which you are not, you won't see a menu, even with the configfile /grub.cfg command.
After uninstalling the acroread I had the same boot problem.I started with the rescue cd but it said that it could not find the core img(I made it yesterday- it is new) but after trying to start a few times there was a disk check and PC booted again. So the rescue cd does not work for me.
