Blank screen of nothing
I’m having trouble with Ubuntu 15.04 on LXF198. It boots to a blank screen on my Dell Dimension E521 with Nvidia adaptor. I don’t see a safe boot option. Is there a work around? If I can get the DVD to boot, how can I make sure the same doesn’t happen after I install Ubuntu? Wandersman57 A blank screen during boot is often caused by kernel modesetting not getting on with certain combinations of Nvidia (and Radeon) graphics cards and driver combinations. Kernel modesetting is where the kernel determines the best resolution to use for the console, as X does for the graphical desktop.
Occasionally it gets it wrong and picks a mode that the monitor can’t handle. To avoid this, when you get to the boot menu option ‘Try Ubuntu…’, press e to edit the options. Remove “quiet splash” from the kernel options and substitute them with “nomodeset” , before pressing Ctrl+x or F10 to continue the boot. That turns off modesetting and boots with a standard 640x480 text console. Note: This only affects the console used for booting; it has no bearing on the resolution of the graphical desktop. If the same problem occurs after booting, hold down the Shift key when you reboot to bring up the Ubuntu boot menu; it’s usually hidden from sight. Then you can perform the same trick to add nomodeset to the kernel options. Once you’ve booted it’s fairly simple to make this the default. You need to edit the file /etc/ default/grub as root and change the options in the line marked GRUB_CMDLINE_LINUX_ DEFAULT . Then you need to run $ sudo update-grub to rebuild the boot menu with the new options. Doing it this way, rather than editing the menu file directly, means that your changes will be applied to any new menu entries that may be created for kernel updates. You can leave “quiet splash” in there but the splash screen won’t be too exciting at 640x480. You can change it by setting GFX_ MODE in /etc/default/grub to what you want to use and remove the # at the start of the line to enable it. You can only use modes that your display and BIOS support. After changing this, run update-grub again. There is a graphical program for changing Grub settings and options, called grubcustomizer. However, it’s not in the standard Ubuntu repositories (repos) and by the time you have added a PPA and installed it, you could have edited the config file several times over. If you want to try it out you can get it from https://launchpad.net/grub-customizer.
Removable RAID?
I have been trying to make a new installation of OpenSUSE 13.2 on an IBM X3400 server using the first drive which is a RAID 1 array. For reasons I don’t understand the downloaded install