When booting up,
The following is observed again and again, endlessly.....There is potentially something wrong with the hard drive blocks. (bad-blocks maybe)
ata2.00: atatus: {DRDY}
ata2: soft resetting link
ata2.00: configured for UDMA/33
ata2:EH Complete
There is a work-around to skip the hard drive check so that the system will boot up
sudo gedit /boot/grub/menu.lst
Appending the following to the kernel boot options:
irqpoll noprobe=ata2
2009年10月16日 星期五
Resolution Issue - Ubuntu boot-up/shut-down without startup/shutdown splash screen
There is a simple 3 step process to solve this problem-
1. Type ’sudo gedit /etc/usplash.conf’
# Usplash configuration file
xres=1280
yres=1024
You have to change 1280 to 1024 in the x resolution and 1024 to 768 in the y resolution
2. Step 1 should solve the shut-down problem.To solve the start-up problem,you need to follow step2 and step3. Now edit /boot/grub/menu.lst by typing ’sudo gedit /boot/grub/menu.lst’. In this file reach the line
## ## End Default Options ##
By default the next paragraph will have the boot information for the option you choose while booting up.It will say something like-
title Ubuntu 7.10, kernel 2.6.22-14-generic
root (hd0,9)
kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=ebddbc03-0e71-41dd-babd-278109f26a95 ro quiet splash
initrd /boot/initrd.img-2.6.22-14-generic
quiet
At the end of the line next to kernel,next to splash add ‘vga=791′.791 is the code for 1024X768 resolution in 16 Bits.What this does is that it changes the screen resolution of all following steps but not of the xserver.You can select any other resolution which your monitor is comfortable with.
Here are some typical values for some screen resolutions-
3. The third step is a copy and paste step.In this step,you need to execute a command to update the settings and generate a new usplash image of the resolution you selected. Execute this command in a terminal window-
sudo update-initramfs -u -k `uname -r`
Reboot your computer now and I’m sure you’ll be able to see the orange Startup splash screen without any trouble now.
1. Type ’sudo gedit /etc/usplash.conf’
# Usplash configuration file
xres=1280
yres=1024
You have to change 1280 to 1024 in the x resolution and 1024 to 768 in the y resolution
2. Step 1 should solve the shut-down problem.To solve the start-up problem,you need to follow step2 and step3. Now edit /boot/grub/menu.lst by typing ’sudo gedit /boot/grub/menu.lst’. In this file reach the line
## ## End Default Options ##
By default the next paragraph will have the boot information for the option you choose while booting up.It will say something like-
title Ubuntu 7.10, kernel 2.6.22-14-generic
root (hd0,9)
kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=ebddbc03-0e71-41dd-babd-278109f26a95 ro quiet splash
initrd /boot/initrd.img-2.6.22-14-generic
quiet
At the end of the line next to kernel,next to splash add ‘vga=791′.791 is the code for 1024X768 resolution in 16 Bits.What this does is that it changes the screen resolution of all following steps but not of the xserver.You can select any other resolution which your monitor is comfortable with.
Here are some typical values for some screen resolutions-
Colours 640x400 640x480 800x600 1024x768 1152x864 1280x1024 1600x1200
--------+--------------------------------------------------------------
4 bits | ? ? 770 ? ? ? ?
8 bits | 768 769 771 773 353 775 796
15 bits | ? 784 787 790 354 793 797
16 bits | ? 758 788 791 355 794 798
24 bits | ? 786 789 792 ? 795 799
32 bits | ? ? ? ? 356 ?
3. The third step is a copy and paste step.In this step,you need to execute a command to update the settings and generate a new usplash image of the resolution you selected. Execute this command in a terminal window-
sudo update-initramfs -u -k `uname -r`
Reboot your computer now and I’m sure you’ll be able to see the orange Startup splash screen without any trouble now.
Overhead (Computer Science)
The processing time required by a device prior to the execution of a command
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