[SOLVED] What is

[branoo]

What on earth is GRUB boot error 15 and how do i get my computer to start up properly

[oz]

Welcome to the forums!

You can check the GRUB Manual to find out what the different error numbers mean. Check section 14 for error numbers and their meanings:

GNU GRUB Manual 0.97

[branoo]

Hi Ozar
I now know what error 15 means and what causes it. But could someone help me to get my computer up and running once again please.

[Jonathan183]

Boot from a live CD, open a terminal and type

sudo fdisk -l
grub
find /boot/grub/menu.lst
quit

post the output from the commands here ... the -l has a small L not a one.

Let us know what distro you have tried to install and if you received any error messages during the install process.

[branoo]

Hello Jonathan
Have opened a terminal and typed sudo fdisk -l and here are the results

ubuntu@ubuntu:~$ sudo fdisk -l

Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0002cef6

Device Boot Start End Blocks Id System
/dev/sda1 1 18903 151838316 83 Linux
/dev/sda2 18904 19457 4450005 5 Extended
/dev/sda5 18904 19457 4449973+ 82 Linux swap / Solaris
ubuntu@ubuntu:~$

[branoo]

I have just opened a terminal and typed 'grub' and i then typed 'find /boot/grub/menu.lst' clicked on enter and the following was returned:

grub> find /boot/grub/menu.lst
Error 15: File not found
grub>

I tried a fresh install of Xubuntu 9.04 and if i remember correctly there was a message which said something about AMD graphic driver not being supported i think. I am more than willing to go through the installation process once again if you think that this will help

[branoo]

Can anyone help me out here please

[yancek]

Your fdisk output shows Kubuntu on partition sda1. For some reason, Grub was not installed properly which is why you get the error 15, file not found. The stage1 file of Grub needs to be in the master boot record. Most Linux distributions give you the option to install to mbr or root partition. Since you have only one system, it should have installed to the mbr? You could try doing this again. Put the Kubuntu CD in the drive and let it load, log in as root (sudo) and get to grub prompt (type grub) get the:grub> Here you would type root (hd0,0) (hit Enter key), type setup (hd0), (hit Enter key), type quit (hit Enter key).

The second problem of the graphics card, log in as sudo again and type command: lspci, this should show information on your graphics card as well as other devices. Look for something with your graphics card name, usually a line beginning with 'VGA compatible controller' and copy that info here.

[branoo]

I have opened a terminal and typed: grub which brought this grub> up on the screen i then typed root (hd0,0) and it returned this output: Error 21: Selected disk does not exist?

[branoo]

Have typed sudo lspci into a terminal and got the following output:

ubuntu@ubuntu:~$ sudo lspci
00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge (rev 01)
00:02.0 PCI bridge: ATI Technologies Inc RS480 PCI-X Root Port
00:11.0 IDE interface: ATI Technologies Inc IXP SB400 Serial ATA Controller
00:12.0 IDE interface: ATI Technologies Inc IXP SB400 Serial ATA Controller
00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller
00:14.0 SMBus: ATI Technologies Inc IXP SB400 SMBus Controller (rev 10)
00:14.1 IDE interface: ATI Technologies Inc IXP SB400 IDE Controller
00:14.3 ISA bridge: ATI Technologies Inc IXP SB400 PCI-ISA Bridge
00:14.4 PCI bridge: ATI Technologies Inc IXP SB400 PCI-PCI Bridge
00:14.5 Multimedia audio controller: ATI Technologies Inc IXP SB400 AC'97 Audio Controller (rev 01)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:00.0 VGA compatible controller: ATI Technologies Inc RV370 5B60 [Radeon X300 (PCIE)]
01:00.1 Display controller: ATI Technologies Inc RV370 [Radeon X300SE]
02:00.0 Multimedia video controller: Internext Compression Inc iTVC16 (CX23416) MPEG-2 Encoder (rev 01)
02:01.0 Communication controller: Agere Systems V.92 56K WinModem (rev 03)
02:03.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
02:04.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306 Fire II IEEE 1394 OHCI Link Layer Controller (rev 80)
ubuntu@ubuntu:~$