error: you need to load the kernel first

[Fábio Martinho]

hello

I upgraded my ubuntu version 8 to 10..

I was using my new version normally, but on the GRUB screen, I have two choices (ubuntu 1 and 2.. something like 'generic-2.6-32.. bla bla)

I could only choose the second option.. because the first option, return this error: you need to load the kernel first.

Ok, i'm using the second option... but when i'm tried to install the driver of my nvidia 3d board, the second option of boot is also not working.. =(
return this erros: kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block (8,33)...

both are kernel problems.. my instalation of ubuntu 10.04 was perfectly successfully (aparently)..


someone can help me? =/

thanks, []'s

[arrange]

Can you please post (via LiveCD for instance) the output of boot_info_script? (If you don't know how to run the script, look here.)

[Fábio Martinho]

arrange.. thanks for your reply..

I only have the livecd of 8.04 version.. can I use this boot_info_script with this version of livecd?

[]´s

[arrange]

Yes, no problem.

[drs305]

arrange.. thanks for your reply..

I only have the livecd of 8.04 version.. can I use this boot_info_script with this version of livecd?

[]´s

Yes you can. You just have to get to the terminal so you can run the script. 8.04 will be fine.

[Fábio Martinho]

Boot Info Script 0.55 dated February 15th, 2010

============================= Boot Info Summary: ==============================

=> Windows is installed in the MBR of /dev/sda
=> Windows is installed in the MBR of /dev/sdb
=> Grub 0.97 is installed in the MBR of /dev/sdc and looks on the same drive
in partition #3 for /boot/grub/stage2 and /boot/grub/menu.lst.

sda1: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows XP
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

sdb1: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows XP
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows XP
Boot files/dirs: /boot.ini /ntldr /NTDETECT.COM /wubildr.mbr /wubildr

sdc1: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows XP
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs: /boot.ini /ntldr /NTDETECT.COM /wubildr.mbr
/ubuntu/winboot/wubildr.mbr /wubildr
/ubuntu/winboot/wubildr /ubuntu/disks/root.disk
/ubuntu/disks/swap.disk

sdc1/Wubi: __________________________________________________ _______________________

File system: ext4
Boot sector type: -
Boot sector info:
Mounting failed:
mount: sistema de arquivos desconhecido 'ext4'

sdc2: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows XP
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

sdc3: __________________________________________________ _______________________

File system: ntfs
Boot sector type: Windows XP
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

=========================== Drive/Partition Info: =============================

Drive: sda ___________________ __________________________________________________ ___

Disco /dev/sda: 20.0 GB, 20020396032 bytes
255 heads, 63 sectors/track, 2434 cylinders, total de 39102336 setores
Units = setores of 1 * 512 = 512 bytes
Disk identifier: 0xe525e525

Partition Boot Start End Size Id System

/dev/sda1 * 63 39,086,144 39,086,082 7 HPFS/NTFS


Drive: sdb ___________________ __________________________________________________ ___

Disco /dev/sdb: 40.0 GB, 40060403712 bytes
255 heads, 63 sectors/track, 4870 cylinders, total de 78242976 setores
Units = setores of 1 * 512 = 512 bytes
Disk identifier: 0x3d343d33

Partition Boot Start End Size Id System

/dev/sdb1 * 63 78,220,484 78,220,422 7 HPFS/NTFS


Drive: sdc ___________________ __________________________________________________ ___

Disco /dev/sdc: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders, total de 156301488 setores
Units = setores of 1 * 512 = 512 bytes
Disk identifier: 0x27692768

Partition Boot Start End Size Id System

/dev/sdc1 * 63 136,311,524 136,311,462 7 HPFS/NTFS
/dev/sdc2 136,311,525 139,476,329 3,164,805 7 HPFS/NTFS
/dev/sdc3 139,476,330 156,296,384 16,820,055 7 HPFS/NTFS


blkid -c /dev/null: __________________________________________________ __________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/loop1 b54efcb2-e3a4-4f75-8f6d-572732986cae ext4
/dev/sda1 C2D851E4D851D76F ntfs
/dev/sdb1 BA8C41FA8C41B225 ntfs
/dev/sdc1 7C1C6F8F1C6F436E ntfs
/dev/sdc2 7C8893138892CAD2 ntfs
/dev/sdc3 46B89ED5B89EC2BB ntfs Linux

============================ "mount | grep ^/dev output: ===========================

Device Mount_Point Type Options



================================ sdb1/boot.ini: ================================

[boot loader]
timeout=15
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOW S
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Micro soft Windows XP Professional" /fastdetect /NoExecute=OptIn
C:\wubildr.mbr = "Ubuntu"

================================ sdc1/boot.ini: ================================

[boot loader]
timeout=15
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOW S
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Micro soft Windows XP Professional" /fastdetect /NoExecute=OptIn
C:\wubildr.mbr = "Ubuntu"

[Fábio Martinho]

please, someone can help me ?!
thx

[drs305]

Would you confirm this is a wubi install on the sdc Windows drive?

It appears wubi should be on sdc3, but that drive failed to mount and thus none of the grub files are found. Normally the "Operating System" will read Ubuntu X.XX (10.04 for instance) and the Boot files will include "/boot/grub/grub.cfg and /etc/fstab".

I don't a lot about wubi. Perhaps some people who use it will post here and tell you how to repair it.

If you need to retrieve any files from your wubi file, you might be able to mount it from the LiveCD with these commands, although mounting the partition was the problem in the first place:

sudo mkdir /mnt/windows
sudo mount /dev/sdc1 /mnt/windows
sudo mkdir /mnt/wubi
sudo mount -o loop /mnt/windows/ubuntu/disks/root.disk /mnt/wubi

Use your file browser to access your files on /mnt/wubi. If you have to reinstall, you can at least copy your files to another partition before you have to reformat the partition.

Grub is installed on the MBR of sdc. Generally Windows should be on the MBR for wubi installs if you have nothing but Windows and a wubi install within Windows. but with the Windows on the other two I don't know how they interact so again I'll have to defer to a Windows 'expert'.

[Fábio Martinho]

drs305.. thanks !

i'm really using wubi, and I will try to make that you said, using live cd, and I will return here with the result.

Grub is installed on the MBR of sdc. Generally Windows should be on the MBR for wubi installs if you have nothing but Windows and a wubi install within Windows. but with the Windows on the other two I don't know how they interact so again I'll have to defer to a Windows 'expert'.

what 'MBR' means?

[ronparent]

Master Boot Record - simply, the section of the disk coded to load the Operation System or a boot loader with a menu to load the OS.