Troubleshooting in Build: Miscellaneous
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Notes and Detailed Instructions
|When there is no Internet connection while updating software (i.e. no network connection)||
First, double check that your ethernet cable is securely plugged into both your system and the wall jack.
Next, right-click the Network icon on the top panel, next to the time and date, and ensure that Networking is listed as Enabled. Then left-click the Network icon and see if an option appears under Wired Connections (it should say something like
|"I have optical drive issues"||
In most cases, if an optical drive isn't being recognized in a system, or isn't being responsive in some way, the most expedient thing to do is shut down the system, yank out the optical drive, and replace it. If it's a rewritable drive (CD/DVD-RW), mark a small X in Sharpie on the drive and put it back into its appopriate crate. If it's just a readable drive (CD/DVD-ROM), go ahead and put it in the recycle bin underneath the workbench.
If you are still having issues after having replaced the optical drive, then grab a build instructor to look over your connections and help you further troubleshoot the problem, or look through the Optical Drive troubleshooting page on the wiki.
|"The system will not complete a reboot. It just hangs on the Ubuntu screen. Shutdown works fine."||
GRUB is the boot loader package responsible for starting up and shutting down your computer. Try editing the following GRUB configuration file and see if it makes a difference. HINT: if you hit the Esc key while your computer is booting up or shutting down during the Ubuntu splash screen, you may get more text information about what your computer is doing. If you're not comfortable working in a terminal, grab some help on this one.
In a terminal, type:
sudo gedit /etc/default/grub
Find the line
and edit it to read:
GRUB_CMDLINE_LINUX_DEFAULT="reboot=bios splash quiet"
Save and exit. In a terminal, type:
Shut down the computer, power on again and try rebooting. Is fixed, no?
|"In BasicCheck, I see less RAM reported than I have installed."||
If you have are working with the Ubuntu OS, 32-bit extension, and your system has more than 4G of RAM installed, the basiccheck script will not recognise the additional RAM beyond 4G. Open a terminal and type the following command: "sudo apt-get install linux-generic-pae linux-headers-generic-pae" and press enter (enter default password to confirm.) Reboot the system, run basiccheck again and the memory check should recognise the full amount of RAM.
|"The XUbuntu splash screen does not show because of a Nvidia chipset"||
If the computer just displays a blank screen and then the Display manager you can try the following to add a boot progress splash screen.
apt-get install v86d hwinfo hwinfo --framebuffer
edit /etc/default/grub and after the GRUB_GFXMODE= line add another line containing:
or something that matches a mode provided by hwinfo.
echo FRAMEBUFFER=y > /etc/initramfs-tools/conf.d/splash
update-initramfs -u update-grub2
You might also need to put something like the following line:
uvesafb mode_option=1280x1024-32@60 mtrr=3 scroll=ywrap
into /etc/initramfs-tools/modules and run update-initramfs -u again.