Installation Problem

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Ubuntu Installation Problems Part2 ☢
Friday, 26. December 2008, 17:10:24
ubuntu, install
Solving Ubuntu Installation Problems-1 PROBLEMI’ve partitioned my disk and clicked to start the installation, after which the InstallingSystem progress bar appears. However, it stops at a certain percentage with an errormessage. If I click the Continue button, everything continues, and at the end, I’m offeredthe chance to reboot into the new installation. However, when I reboot, the Ubuntudesktop doesn’t appear. Instead, all I see is a black screen with a text-mode login prompt.-SOLUTIONFor some reason vital Ubuntu software hasn’t been correctly copied to the machine.At the login prompt, type your username, and type your password when it’s requested.Then, at the command prompt, type the following:
sudo apt-get update
At this point you'll need to type your password; do so then type:
sudo apt-get –f install
then
sudo apt-get install ubuntu-desktop
If you find this doesn’t work,install Ubuntu using thealternate install CD............................................................................................................................................................................................................-2 PROBLEMWhen the Ubuntu installation program gets to the Starting Up the Partitioner stage, itreports that it can’t find any hard disk in my computer.-SOLUTIONThere are many possible reasons for this, but here are three potential solutions that you might try in sequence:1. Click Manually Edit Partition Table, and click the Forward button. At the top-right corner of the window, in the drive selection drop-down list, ensure the correct hard disk is selected. Once you select the disk, you should find the partitions are displayed.2. Ensure the jumpers are set correctly on the hard disk (consult the hard disk’s documentation if necessary). This is particularly worth checking if you have more than one hard disk. If this doesn’t solve the problem, and your second hard disk is nonbootable (that is, it’s used only for data storage), try temporarily removing it, and then install Ubuntu. Reconnect it after installation has completed.3. If none of These Solutions work use the alternate install CD. This contains an older installation program that many consider more reliable on some problematic computers....................................................................................................................................................................................... -3 PROBLEMWhen I try to install Ubuntu, the Prepare Disk Space screen shows one (or several) addiional small hard disks, usually identified as /dev/sda followed by a number.-SOLUTIONIf you have a USB memory stick inserted, or a photographic card reader, it will be identified by the Ubuntu installer in this way. You can ignore this or, if you want to avoid confusion,quit the installer, remove the memory stick or card reader, adpkg-reconfigure xserver-xorgnd restart the installerprogram...........................................................................................................................................................................................................................................-4 PROBLEMWhen manually partitioning, I see an error message to the effect that I can’t have more than four primary partitions.-SOLUTIONThis is a limitation in how hard disks work and not an issue with Ubuntu. You will have to create an extended partition to contain your new Ubuntu partitions. To do this, right-click the free space, click New, and select Extended Partition from the Create As drop-down list. By default, all the free space should be used, so click the Add button. Then, click in the new, extended partition, and create the Ubuntu partition...............................................................................................................................................................................-5 PROBLEMWhen I try to install Ubuntu into partitions that have previously contained Ubuntu (or another version of Linux), in order to wipe them and install Ubuntu into them, I get the error message “No root file system” on the Prepare Mount Points screen. (Alternatively, I created the Ubuntu partitions and then quit the installer before package installation had taken place. When I started it again later and attempted to use the partitions I’d created, I received the “No root file system” message.)-SOLUTIONUnfortunately there’s a bug in the Ubuntu installer, which appears on a minority of computers, that means it’s unable to utilize partitions that already exist when the installer starts. It seems the Ubuntu installer will only utilize partitions that it’s created. The solution is simple—go back to the manual partitioning screen by clicking the Back button, delete the existing partition that you intended to use, and then recreate it.................................................................................................................................................................................................................................................................................................................................................Post installation Problems-6 PROBLEMI use a wide-screen monitor (or a wide-screen notebook). When I boot to the desktop, the resolution is set too low. When I try to switch resolutions (by clicking System ➤ Preferences ➤Screen Resolution), the resolution my monitor usually runs at isn’t available in the list.-SOLUTIONIt a minority of cases, the open source drivers for ATI and NVIDIA cards can’t support certain resolutions on particular monitors. One solution is to install proprietary graphics drivers...........................................................................................................................................................................-7 PROBLEMWhen I boot for the first time, I see an error message along the lines of “No operating system could be found on the hard disk.”-SOLUTIONIt seems that, for whatever reason, the GRUB boot loader wasn’t installed correctly. Boot from the DVD-ROM, and select to Enter or Install Ubuntu when prompted. When the Ubuntu desktop appears, click Applications ➤ Accessories ➤ Terminal. This will open a command-prompt window. Type the following commands in sequence:
sudo grub
At this point you'll need to type your password
root (hd0,1)

setup (hd0)

quit
Then restart Ubuntu (click System ➤ Quit). Ensure you remove the DVD-ROM when prompted. You should find that the Ubuntu boot menu now appears when you boot....................................................................................................................................................................................................-8 PROBLEMAfter I’ve installed Ubuntu, Windows will no longer boot, although Ubuntu works fine. After I select Windows from the boot menu, the Windows boot procedure either freezes when “Starting Windows . . .” appears, or the boot status bar is shown, but the desktop never appears.-SOLUTIONTry repairing your Windows disk using the Windows command-line tool chkdsk. This can be done from the recovery mode of the Windows installation CD/DVD, but the instructions for how to do this vary depending on if you’re running Windows Vista or XP.Windows VistaIf you’re running Windows Vista, follow these steps to run chkdsk:1. Insert the Windows Vista installation DVD, and select to boot from it. 2. For some time, you’ll see the message Windows is Loading Files, along with a progress bar. Once this has cleared, select your language/locale settings from the Install Windows dialog box, and click Next.3. On the next screen, don’t click the Install Now button. Instead, click the Repair Your Computer link at the bottom-left corner of the window.4. In the System Recovery Options dialog box, select your Windows Vista partition, and click Next.5. On the next screen, select Command Prompt.6. In the command-prompt window that appears, type the following (this assumes Vista is installed on drive C:):
chkdsk c: /R
7. Wait until the check has completed, and type exit at the prompt.8. Back in the System Recovery Options dialog box, click Restart. This will reboot your computer. Be sure to eject the Windows Vista DVD before doing so.Windows XP1. Insert the Windows XP installation CD, and select to boot from it. 2. For some time, you’ll see status messages that Windows is loading driver files. Eventually the Windows Setup menu will appear. Press R to start the Recovery Console.3. You’ll be asked to confirm which Window installation you’d like to boot into; do so.4. You’ll then be prompted for the administrator’s password. If you don’t have one, simply press Enter.5. At the command prompt, type the following:
chkdsk c: /R
6. Wait until the check has completed, and then type exit at the prompt. This will reboot your computer. Be sure to eject the Windows XP CD before rebooting.............................................................................................................................................................................-9 PROBLEMWhen I boot for the first time, all I see is a black screen with some text at the top.-SOLUTIONIf this happens when you’re attempting to boot into Ubuntu’s live distro mode to install Ubuntu, the solution is to select the second option on the DVD-ROM boot menu: Start Ubuntu in Safe Graphics Mode. This will use Vesa-mode graphics drivers, which are known to work with the majority of graphics cards in use today.If you run into graphical problems after Ubuntu has been installed, you can recon-figure X.org, Ubuntu’s graphical subsystem (often referred to simply as X). This can be done using Ubuntu’s dpkg-reconfigure tool at the command promptfirst boot into Ubuntu’s recovery mode. This provides a simple command-line prompt and is designed to let you fix the system if anything goes wrong. To do this, ensure the installation DVD-ROM is removed from your computer’s DVD-ROM drive, and switch on your computer. If youdual-boot your computer with Windows, you’ll need to select the “Ubuntu [. . .] (recovery mode)” option from the menu that appears just after your computer boots. If your computer has only Ubuntu installed on it, you’ll need to press a key to enter the boot menu when prompted; then select the “Ubuntu [. . .] (recovery mode)” option.Eventually, a command prompt will appear, and you’ll see root@hostname:~#, followed by a cursor (in place of hostname will be the hostname you entered during installation). At the prompt, type the following:
dpkg-reconfigure xserver-xorg
This will start the configuration program, which runs in text mode. Reconfiguring X.org simply requires answering some basic questions, as outlined in the following steps. Graphics Card ConfigurationThe X.org configuration program begins with graphics card setup. Note that the configu-ration program does not use the mouse. Instead you should use the keyboard—use the arrow keys to move among options on a menu, and Tab to move the selection between on-screen options. Press Enter to select an option.1. The first question asks you to choose a driver from a list. If you wish, you can select the driver that seems appropriate to your hardware (the ati option for an ATI-based card, for example), but the safest choice is to choose the Vesa option. This driver works on virtually every graphics card. Press Enter when you’ve made your choice.2. You’re asked to enter an identifier for your graphics card. This is merely for ref-erence purposes, and anything will do. The default that Ubuntu suggests is fine, and you can simply press Enter.3. An information screen outlining the next step, which is to identify the bus ID of the card, appears. This is a technical setting needed for Ubuntu to use the card. High-light the OK button using the Tab key, and press Enter.4. Next, you’ll be invited to fill in the bus ID details. The default suggested by Ubuntu should be automatically filled in and should work for most people, so simply press Enter.5. You’re invited to enter the amount of memory your graphics card contains. Once again, Ubuntu is able to autodetect this. It’s acceptable to leave the field blank and press Enter.6. You’re asked whether you want to use your graphics card’s framebuffer. This is a method of accessing the graphics card memory, and nearly all modern graphics cards are compatible with it, so you can select Yes and press Enter. However, if after completing these steps you find that you still have problems with your display, start again from step 1, and choose not to use the framebuffer.
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