Grub Lost ubuntu 12.04 install

[Dr Dedoverde]

Hello all!
My my problem is with the GRUB installation ubuntu 12.04 desktop.

Executing 'grub-install/dev/sda1' failed. This is a fatal error

search found the following command lines, but I do not work.



ubuntu@ubuntu:~$ sudo grub-install /dev/sda
/usr/sbin/grub-probe: error: cannot find a device for /boot/grub (is /dev mounted?).
ubuntu@ubuntu:~$ sudo fdisk -l
Atención: el indicador 0x0000 inválido de la tabla de particiones 5 se corregirá mediante w(rite)

Disco /dev/sda: 320.1 GB, 320072933376 bytes
255 cabezas, 63 sectores/pista, 38913 cilindros, 625142448 sectores en total
Unidades = sectores de 1 * 512 = 512 bytes
Tamaño de sector (lógico / físico): 512 bytes / 512 bytes
Tamaño E/S (mínimo/óptimo): 512 bytes / 512 bytes
Identificador del disco: 0x000ede28

Dispositivo Inicio Comienzo Fin Bloques Id Sistema
/dev/sda1 254 1250021631 625010689 5 Extendida

Disco /dev/sdb: 320.1 GB, 320072933376 bytes
255 cabezas, 63 sectores/pista, 38913 cilindros, 625142448 sectores en total
Unidades = sectores de 1 * 512 = 512 bytes
Tamaño de sector (lógico / físico): 512 bytes / 512 bytes
Tamaño E/S (mínimo/óptimo): 512 bytes / 512 bytes
Identificador del disco: 0x00000000

El disco /dev/sdb no contiene una tabla de particiones válida

Disco /dev/mapper/pdc_bbhijcigfi: 640.0 GB, 640011599872 bytes
255 cabezas, 63 sectores/pista, 77810 cilindros, 1250022656 sectores en total
Unidades = sectores de 1 * 512 = 512 bytes
Tamaño de sector (lógico / físico): 512 bytes / 512 bytes
Tamaño E/S (mínimo/óptimo): 65536 bytes / 131072 bytes
Identificador del disco: 0x000ede28

Dispositivo Inicio Comienzo Fin Bloques Id Sistema
/dev/mapper/pdc_bbhijcigfi1 254 1250021631 625010689 5 Extendida
La partición 1 no se inició en el limite físico del sector
/dev/mapper/pdc_bbhijcigfi5 256 10000127 4999936 83 Linux
/dev/mapper/pdc_bbhijcigfi6 10000384 30000127 9999872 83 Linux
/dev/mapper/pdc_bbhijcigfi7 30000384 1230000127 599999872 83 Linux
/dev/mapper/pdc_bbhijcigfi8 1230000384 1250021631 10010624 82 Linux swap / Solaris
Atención: no se tienen en cuenta los datos adicionales de la tabla de particiones 6
Atención: el indicador 0x0007 inválido de la tabla de particiones 6 se corregirá mediante w(rite)

Disco /dev/mapper/pdc_bbhijcigfi1: 640.0 GB, 640010945536 bytes
255 cabezas, 63 sectores/pista, 77810 cilindros, 1250021378 sectores en total
Unidades = sectores de 1 * 512 = 512 bytes
Tamaño de sector (lógico / físico): 512 bytes / 512 bytes
Tamaño E/S (mínimo/óptimo): 65536 bytes / 131072 bytes
Posición de alineamiento: 1024 bytes
Identificador del disco: 0x00000000

Dispositivo Inicio Comienzo Fin Bloques Id Sistema
/dev/mapper/pdc_bbhijcigfi1p1 2 9999873 4999936 83 Linux
/dev/mapper/pdc_bbhijcigfi1p2 9999874 29999873 10000000 5 Extendida
/dev/mapper/pdc_bbhijcigfi1p5 10000130 29999873 9999872 83 Linux
/dev/mapper/pdc_bbhijcigfi1p6 4057225475 4057230528 2527 be arranque de Solaris
La partición 6 no se inició en el limite físico del sector

Disco /dev/mapper/pdc_bbhijcigfi5: 5119 MB, 5119934464 bytes
255 cabezas, 63 sectores/pista, 622 cilindros, 9999872 sectores en total
Unidades = sectores de 1 * 512 = 512 bytes
Tamaño de sector (lógico / físico): 512 bytes / 512 bytes
Tamaño E/S (mínimo/óptimo): 65536 bytes / 131072 bytes
Identificador del disco: 0x00000000

El disco /dev/mapper/pdc_bbhijcigfi5 no contiene una tabla de particiones válida

Disco /dev/mapper/pdc_bbhijcigfi6: 10.2 GB, 10239868928 bytes
255 cabezas, 63 sectores/pista, 1244 cilindros, 19999744 sectores en total
Unidades = sectores de 1 * 512 = 512 bytes
Tamaño de sector (lógico / físico): 512 bytes / 512 bytes
Tamaño E/S (mínimo/óptimo): 65536 bytes / 131072 bytes
Identificador del disco: 0x00000000

El disco /dev/mapper/pdc_bbhijcigfi6 no contiene una tabla de particiones válida

Disco /dev/mapper/pdc_bbhijcigfi7: 614.4 GB, 614399868928 bytes
255 cabezas, 63 sectores/pista, 74696 cilindros, 1199999744 sectores en total
Unidades = sectores de 1 * 512 = 512 bytes
Tamaño de sector (lógico / físico): 512 bytes / 512 bytes
Tamaño E/S (mínimo/óptimo): 65536 bytes / 131072 bytes
Identificador del disco: 0x00000000

El disco /dev/mapper/pdc_bbhijcigfi7 no contiene una tabla de particiones válida

Disco /dev/mapper/pdc_bbhijcigfi8: 10.3 GB, 10250878976 bytes
255 cabezas, 63 sectores/pista, 1246 cilindros, 20021248 sectores en total
Unidades = sectores de 1 * 512 = 512 bytes
Tamaño de sector (lógico / físico): 512 bytes / 512 bytes
Tamaño E/S (mínimo/óptimo): 65536 bytes / 131072 bytes
Identificador del disco: 0xf943b280

El disco /dev/mapper/pdc_bbhijcigfi8 no contiene una tabla de particiones válidathese are my partitions
http://img689.imageshack.us/img689/1919/capturadepantallade2012yt.png

please help I have been over 12 hours looking for a solution and my eyes are burning xD

[oldfred]

Welcome to the forums.

I do not know RAID and you have RAID. Did you use the standard desktop installer. It does not have the RAID drivers. You need to use the alternative installer. It is text based, but otherwise like the gui version. But without the extra gui, it has room for extra drivers like the RAID drivers you need.

http://www.ubuntu.com/download/ubuntu/alternative-download

You might be able to use boot repair to install grub but you want to install to the root of raid not the devices. Or install grub2's boot loader to /dev/mapper/pdc_bbhijcigfi with no number for partition or the root of the RAID device. The manual example your were following were for non-RAID and used the devices like /dev/sda, but yours should be /dev/mapper/pdc_bbhijcigfi.

I think this downloads the extra RAID driver and then works with the desktop liveCD to install grub2.
Boot Repair -Also handles LVM, GPT, separate /boot and UEFI dual boot.:
https://help.ubuntu.com/community/Boot-Repair
You can repair many boot issues with this or 'Create BootInfo' report (Other Options) & post the link it creates, so we can see your exact configuration an diagnose advanced problems.

Update
If you have a separate /boot and using the manual commands you have to also mount it. If using Boot-Repair tick the separate /boot and tell it which partition is /boot.

[Dr Dedoverde]

hello again!
I ran the boot repair as you indicated and I could not fix the problem.
I leave the bootinfo

http://paste.ubuntu.com/1137767/

http://paste.ubuntu.com/openid/login/?next=/1137767/plain/ (http://paste.ubuntu.com/openid/login/?next=/1137767/plain/)

I'm downloading the installation Alternatively, if the problem persists I will use it.
thanks for helpme

[oldfred]

I do not know RAID well enough to know if the reported issues are real or just that the standard partitions tools do not work with the RAID.

It looks like while grub2's boot loader was installed, the core.img file did not get correctly installed.

[Dr Dedoverde]

Is it possible to install the core.img manually?

[oldfred]

No, not that I know of. It is customized for your install. Normally with MBR it is starts at the sector just after the MBR and with gpt you have to have another bios_grub partition to hold it. Not sure about RAID. It usually seems to put a copy into the /boot/grub folder.

[Dr Dedoverde]

has miraculously solved the problem of grub
this was what I did:
I created a new raid configuration (raid1) with the following partition configuration.

http://desmond.imageshack.us/Himg442/scaled.php?server=442&filename=capturadepantallade2012v.png&res=landing
(looking at the picture I realize that I'm an unmounted partition. I promise to fix it :P)

then, when you specify the path grub boot without any problems let me choose /dev/mapper/pdc_cdgjjiaecf (298.03 GIB) as pictured.
it is clear that I'm new to ubuntu (2 days)
bye and thanks