Actualizar grub

Mar Feb 12 08:14:41 GMT 2008

Hola,

segun tu menu.ls tenemos:
> title        Ubuntu 7.10, kernel 2.6.22-14-generic
> root        (hd0,1)
> kernel        /boot/vmlinuz-2.6.22-14-genericroot=UUID=0c3d2f81-bc40-48c6-b891-4bcdb48315fa
> ro quiet splash
> initrd        /boot/initrd.img-2.6.22-14-generic
> quiet

lo q dice q estas arrancando desde el disco 0 (hd0,) y partición 1 (,1).
Para saber que estás en la partición correcta, así como el disco, haz
un "fdisk -l" como root.
Te debe salir algo así:
$ sudo fdisk -l

Disk /dev/sda: 160 GB, 160039272960 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System 
/dev/sda1   *           1        5759    46259136    7  HPFS/NTFS
/dev/sda2            5760       12599    54934267   83  Linux
/dev/sda3           12600       19171    52781557   83  Linux
/dev/sda4           19172       19457     2289262    5  Extended
/dev/sda5           19172       19457     2289262   82  Linux swap

en mi casi el disco hd0 es un scassi (sda) y está en la partición 1
(sda1).
Te has de fijar donde tienes el signo * de la columna de boot, lo cual
te indica desde que partición arranca.

Si este no es tu error, intenta ponernos el error que te devuelve, ya
que lo has explicado de forma muy general.

Saludos

On Mon, 11 Feb 2008 23:03:23 +0100
"marcos gonzalez" <elmailpersonal en gmail.com> wrote:

> Buenas lista
> 
> Estoy teniendo problemas bastante serios con el grub, resulta que me
> instale una debian pero sin instalador, y al intentar cargarla no me
> deja. Posteo el menu.lst a ver si alguien sabe que puede estar
> fallando
> 
> # menu.lst - See: grub(8), info grub, update-grub(8)
> #            grub-install(8), grub-floppy(8),
> #            grub-md5-crypt, /usr/share/doc/grub
> #            and /usr/share/doc/grub-doc/.
> 
> ## default num
> # Set the default entry to the entry number NUM. Numbering starts
> from 0, and
> # the entry number 0 is the default if the command is not used.
> #
> # You can specify 'saved' instead of a number. In this case, the
> default entry
> # is the entry saved with the command 'savedefault'.
> # WARNING: If you are using dmraid do not change this entry to
> 'saved' or your
> # array will desync and will not let you boot your system.
> default        0
> 
> ## timeout sec
> # Set a timeout, in SEC seconds, before automatically booting the
> default entry
> # (normally the first entry defined).
> timeout        5
> 
> ## hiddenmenu
> # Hides the menu by default (press ESC to see the menu)
> #hiddenmenu
> 
> # Pretty colours
> #color cyan/blue white/blue
> 
> ## password ['--md5'] passwd
> # If used in the first section of a menu file, disable all interactive
> editing
> # control (menu entry editor and command-line)  and entries protected
> by the # command 'lock'
> # e.g. password topsecret
> #      password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
> # password topsecret
> 
> #
> # examples
> #
> # title        Windows 95/98/NT/2000
> # root        (hd0,0)
> # makeactive
> # chainloader    +1
> #
> # title        Linux
> # root        (hd0,1)
> # kernel    /vmlinuz root=/dev/hda2 ro
> #
> 
> #
> # Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST
> 
> ### BEGIN AUTOMAGIC KERNELS LIST
> ## lines between the AUTOMAGIC KERNELS LIST markers will be modified
> ## by the debian update-grub script except for the default options
> below
> 
> ## DO NOT UNCOMMENT THEM, Just edit them to your needs
> 
> ## ## Start Default Options ##
> ## default kernel options
> ## default kernel options for automagic boot options
> ## If you want special options for specific kernels use kopt_x_y_z
> ## where x.y.z is kernel version. Minor versions can be omitted.
> ## e.g. kopt=root=/dev/hda1 ro
> ##      kopt_2_6_8=root=/dev/hdc1 ro
> ##      kopt_2_6_8_2_686=root=/dev/hdc2 ro
> # kopt=root=UUID=0c3d2f81-bc40-48c6-b891-4bcdb48315fa ro
> 
> ## Setup crashdump menu entries
> ## e.g. crashdump=1
> # crashdump=0
> 
> ## default grub root device
> ## e.g. groot=(hd0,0)
> # groot=(hd0,1)
> 
> ## should update-grub create alternative automagic boot options
> ## e.g. alternative=true
> ##      alternative=false
> # alternative=true
> 
> ## should update-grub lock alternative automagic boot options
> ## e.g. lockalternative=true
> ##      lockalternative=false
> # lockalternative=false
> 
> ## additional options to use with the default boot option, but not
> with the ## alternatives
> ## e.g. defoptions=vga=791 resume=/dev/hda5
> # defoptions=quiet splash
> 
> ## should update-grub lock old automagic boot options
> ## e.g. lockold=false
> ##      lockold=true
> # lockold=false
> 
> ## Xen hypervisor options to use with the default Xen boot option
> # xenhopt=
> 
> ## Xen Linux kernel options to use with the default Xen boot option
> # xenkopt=console=tty0
> 
> ## altoption boot targets option
> ## multiple altoptions lines are allowed
> ## e.g. altoptions=(extra menu suffix) extra boot options
> ##      altoptions=(recovery) single
> # altoptions=(recovery mode) single
> 
> ## controls how many kernels should be put into the menu.lst
> ## only counts the first occurence of a kernel, not the
> ## alternative kernel options
> ## e.g. howmany=all
> ##      howmany=7
> # howmany=all
> 
> ## should update-grub create memtest86 boot option
> ## e.g. memtest86=true
> ##      memtest86=false
> # memtest86=true
> 
> ## should update-grub adjust the value of the default booted system
> ## can be true or false
> # updatedefaultentry=false
> 
> ## should update-grub add savedefault to the default options
> ## can be true or false
> # savedefault=false
> 
> ## ## End Default Options ##
> 
> title        Ubuntu 7.10, kernel 2.6.22-14-generic
> root        (hd0,1)
> kernel        /boot/vmlinuz-2.6.22-14-genericroot=UUID=0c3d2f81-bc40-48c6-b891-4bcdb48315fa
> ro quiet splash
> initrd        /boot/initrd.img-2.6.22-14-generic
> quiet
> 
> title        Ubuntu 7.10, kernel 2.6.22-14-generic (recovery mode)
> root        (hd0,1)
> kernel        /boot/vmlinuz-2.6.22-14-genericroot=UUID=0c3d2f81-bc40-48c6-b891-4bcdb48315fa
> ro single
> initrd        /boot/initrd.img-2.6.22-14-generic
> 
> title        Ubuntu 7.10, memtest86+
> root        (hd0,1)
> kernel        /boot/memtest86+.bin
> quiet
> 
> title        debian Sid,kernel  2.6.22-3-amd64
> root        (hd0,6)
> kernel        /boot/vmlinuz-2.6.22-3-amd64 root=/dev/sda7 ro quiet
> initrd        /boot/initrd.img-2.6.22-3-amd64
> quiet
> 
> 
> ### END DEBIAN AUTOMAGIC KERNELS LIST
> 
> # This is a divider, added to separate the menu items below from the
> Debian # ones.
> title        Other operating systems:
> root
> 
> 
> # This entry automatically added by the Debian installer for a
> non-linux OS # on /dev/sda1
> title        Microsoft Windows XP Professional
> root        (hd0,0)
> savedefault
> makeactive
> chainloader    +1
> 
> 
> Salut!