Obnova Grubu - problém [vyřešeno]

[okob]

Mel jsem nainstalovane XP,rozdelen na 3 casti, 1cast je original se zachranou VIST,2 je moje boot a 3 je odkladaci prostor. Z 2 jsem odelil 15G pro Ubuntu.Nainstaloval Ubuntu a prestali mi chodit XP,startovali ale pak se pc automaticky restartoval.Takze jsem to vzdal.Pocitac mi normalne chodil (Ubuntu) a nainstaloval jsem XP.Snaha obnovit Grub ja marna.Mam sice vyberovou tabulku se systemy ale Ubuntu po spusteni hned nahlasi chybu.Xp jdou jak opet obnovit Ubuntu???  Ubuntu je na sda3,xp sda2 - boot v partitionu je nastaven na sda3(Ubuntu).Nefunguje nemohly byt nejake soubory na sda2 (Xp)???Ja ho zformatoval nez jsem dal Xp znovu.

v partitionu je
/dev/sda2 ntfs    /media/disk
/dev/sda3 ext3   /media/disk-1   boot


snaha obnovy

grub> find /boot/grub/stage1
 (hd0,2)

grub> root (hd0,2)          

grub> setup (hd0)
 Checking if "/boot/grub/stage1" exists... yes
 Checking if "/boot/grub/stage2" exists... yes
 Checking if "/boot/grub/e2fs_stage1_5" exists... yes
 Running "embed /boot/grub/e2fs_stage1_5 (hd0)"...  17 sectors are embedded.
succeeded
 Running "install /boot/grub/stage1 (hd0) (hd0)1+17 p (hd0,2)/boot/grub/stage2
/boot/grub/menu.lst"... succeeded
Done.

grub>



Tabulka

 +-------------------------------------------------------------------------+
 | Ubuntu, kernel 2.6.20-16-generic                                        |
 | Ubuntu, kernel 2.6.20-16-generic (recovery mode)                        |
 | Ubuntu, kernel 2.6.20-15-generic                                        |
 | Ubuntu, kernel 2.6.20-15-generic (recovery mode)                        |
 | Ubuntu, memtest86+                                                      |
 | Other operating systems:                                                |
 | Windows NT/2000/XP                                                      |
 | Microsoft Windows XP Professional                                       |
 |                                                                         |
 |                                                                         |
 |                                                                         |
 |                                                                         |
 +-------------------------------------------------------------------------+
    Use the ^ and v keys to select which entry is highlighted.
    Press enter to boot the selected OS, 'e' to edit the
    commands before booting, or 'c' for a command-line.


Chyba po odentrovani -  Ubuntu, kernel 2.6.20-16-generic   :


Error 17: Cannot mount selected partition

Press any key to continue...
 

a je to porad dokola.Proste nejde





Jak to vyresit aby mi sel opet MUJ UBUNTU "Help me,please

[Jakub Lucký]

1) Upravil jsem název threadu

2) Dejte sem výpisy
sudo fdisk -l
cat /boot/grub/menu.lst

[okob]

ubuntu@ubuntu:~$ sudo fdisk -l

Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1        1020     8193118+  12  Compaq diagnostics
/dev/sda2            1021        5895    39158437+   7  HPFS/NTFS
/dev/sda3   *        5896        7807    15358140   83  Linux
/dev/sda4            7808       14593    54508545    7  HPFS/NTFS



cat /boot/grub/menu.lst --  toto nefunguje jedu z CD Ubuntu

[Jakub Lucký]

Ale do svého nainstalovaného ubuntu se dostanete... Protože si ten můžete připojit...
Tak v něm ten soubor najděte...

[okob]

musel jsem ho najit rucne

#
# Sample boot menu configuration file
#

# Boot automatically after 30 secs.
timeout 30

# By default, boot the first entry.
default 0

# Fallback to the second entry.
fallback 1

# For booting GNU (also known as GNU/Hurd)
title  GNU (also known as GNU/Hurd)
root   (hd0,0)
kernel /boot/gnumach.gz root=device:hd0s1
module /hurd/ext2fs.static --multiboot-command-line=${kernel-command-line} --host-priv-port=${host-port} --device-master-port=${device-port} --exec-server-task=${exec-task} -T typed ${root} $(task-create) $(task-resume)
module /lib/ld.so.1 /hurd/exec $(exec-task=task-create)

# For booting GNU/Linux
title  GNU/Linux
root (hd1,0)
kernel /vmlinuz root=/dev/hdb1
#initrd /initrd.img

# For booting GNU/kFreeBSD
title  GNU/kFreeBSD
root   (hd0,2,a)
kernel /boot/loader.gz

# For booting GNU/kNetBSD
title  GNU/kNetBSD
root   (hd0,2,a)
kernel --type=netbsd /boot/knetbsd.gz

# For booting Mach (getting kernel from floppy)
title  Utah Mach4 multiboot
root   (hd0,2)
pause  Insert the diskette now!!
kernel (fd0)/boot/kernel root=hd0s3
module (fd0)/boot/bootstrap

# For booting FreeBSD
title  FreeBSD
root   (hd0,2,a)
kernel /boot/loader

# For booting NetBSD
title  NetBSD
root   (hd0,2,a)
kernel --type=netbsd /netbsd

# For booting OpenBSD
title  OpenBSD
root   (hd0,2,a)
kernel --type=netbsd /bsd

# For booting OS/2
title OS/2
root  (hd0,1)
makeactive
# chainload OS/2 bootloader from the first sector
chainloader +1
# This is similar to "chainload", but loads a specific file
#chainloader /boot/chain.os2

# For booting Windows NT or Windows95
title Windows NT / Windows 95 boot menu
rootnoverify (hd0,0)
makeactive
chainloader  +1
# For loading DOS if Windows NT is installed
# chainload /bootsect.dos

# For installing GRUB into the hard disk
title Install GRUB into the hard disk
root    (hd0,0)
setup   (hd0)

# Change the colors.
title Change the colors
color light-green/brown blink-red/blue

[Jakub Lucký]

To určitě není vše...
Pokud ano, pak je menu.lst na tom velice špatně...

[okob]

To je bohuzel vse,nic jsem s tim nedelal jen nainstaloval XP s tim ze obnovim grub.Pak tam ma grub-menu.lst a dalsi
napr:
menu.lst_addwindowsentrygrubmenu
menu.lst_displaysplashimagegrub

je jich asi  8 co to naslo menu*.lst

[okob]

to je ze souboru :menu.lst_addwindowsentrygrubmenu


# 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 optons 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 specifiv 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=root=/dev/hda2 ro

## 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

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
##      altoptions=(recovery mode) single
# altoptions=(recovery mode) single

## nonaltoption boot targets option
## This option controls options to pass to only the
## primary kernel menu item.
## You can have ONLY one nonaltoptions line
# nonaltoptions=quiet splash

## 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

## ## End Default Options ##

title      Ubuntu, kernel 2.6.10-5-386
root      (hd0,1)
kernel      /boot/vmlinuz-2.6.10-5-386 root=/dev/hda2 ro quiet splash
initrd      /boot/initrd.img-2.6.10-5-386
savedefault
boot

title      Ubuntu, kernel 2.6.10-5-386 (recovery mode)
root      (hd0,1)
kernel      /boot/vmlinuz-2.6.10-5-386 root=/dev/hda2 ro single
initrd      /boot/initrd.img-2.6.10-5-386
savedefault
boot

title      Ubuntu, kernel memtest86+
root      (hd0,1)
kernel      /boot/memtest86+.bin  
savedefault
boot

### 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/hda1
title      Microsoft Windows
root      (hd0,0)
savedefault
makeactive
chainloader   +1

[okob]

Nebude lepsi oba disky zformatovat a nahazet to tam znova vse???Co dat jako prvni XP nebo Ubuntu??Treba neco vymyslite ale myslim ze ten format poskodil ubuntu, ale presto dekuji za kazdou pomoc.

[Jakub Lucký]

Napadá mě jeden postup...
Nevím jestli vyjde...

Kód: [Vybrat]

sudo chroot /dev/sda3
sudo update-grubV tuhle chvíli ani nemůžu zaručit, že to bude vůbec aspoň nějak fungovat...

[okob]

ubuntu@ubuntu:~$ sudo chroot /dev/sda3
chroot: cannot change root directory to /dev/sda3: Not a directory

ubuntu@ubuntu:~$ update-grub
Searching for GRUB installation directory ...
No GRUB directory found. To create a template run 'mkdir /boot/grub' first. To install grub, install it manually or try the 'grub-install' command. ### Warning, grub-install is used to change your MBR. ###

ubuntu@ubuntu:~$

 
to mi napsalo

[okob]

root@ubuntu:/home/ubuntu# sudo grub
Probing devices to guess BIOS drives. This may take a long time.
root@ubuntu:/home/ubuntu# sudo mkdir /mnt/disk
root@ubuntu:/home/ubuntu# sudo mount /dev/sda3 /mnt/disk
root@ubuntu:/home/ubuntu# sudo chroot /mnt/disk
root@ubuntu:/# grub-install /dev/sda3
/dev/sda3: Not found or not a block device.
root@ubuntu:/#


dalsi pokus omyl

[gargy2002]

Pokud chcete mit widle a ubuntu na jednom hdd, tak doporucuju napred nainstalovat XP, pokud nejsou, dale ve windows v manageru disku rozdelit particny, nechat widle na jedne a zbytek hdd rozdelit na xGB pro ubuntu a tak 1GB na swap. Formatovani uz bude potom zalezitost pri instalaci ubuntu, kde se bude instalovat i zavadec Grub, aby jste mohl bootnout i do widli. Ja mam 50GB plus minus od koupe na Viste a na druhe particne jsem akorat odkrojil 2GB na swap. Instalace easy a system slape, stejne jako Vista, ale abych rekl pravdu, zlate XP...

[Jakub Lucký]

Jinak na reinstall, pokud na něj dojde toto:
http://wiki.ubuntu.cz/Pr%C5%AFvodce_instalac%C3%AD

[okob]

Uz jsem to vyresil. Format obou disku a nainstalovani obou systemu znova.Dekuji vsem,ted vse bezi OK