cant boot linux after windows install

erusfatum · Jan 2, 2007

hey guys! happy new year! :santa:

i know it have been said million of times, but i dont know how to search for it...
i had dual boot on my pc, on one partition windows xp pro and other for linux mandriva. then i had some trouble with windows and had to format and reinstall window'. but when i installed windows again, i couldnt boot to linux, it didnt load that screen where u select what to boot. how can i correct this and make the boot loader to work again? because i dont want to reinstall linux...

Misfit138 · Jan 2, 2007

With a live cd, reinstall GRUB (or Lilo). It was most likely on the MBR of the windows partition, and got nuked with the reinstallation.

dicecca112 · Jan 2, 2007

exactly if your gonna dual boot always install windows first

erusfatum · Jan 2, 2007

yeah but i didnt want to reinstall linux after i reinstalled windows. do i have to have the same disto live cd as the disto installed?

splat · Jan 2, 2007

erusfatum said:
yeah but i didnt want to reinstall linux after i reinstalled windows. do i have to have the same disto live cd as the disto installed?

no, any live cd should be fine. I always use my gentoo minimal install cd because all I need is the CLI. Boot the cd, mount your linux partition, chroot into it, install grub again, exit the chroot, unmount the drive, reboot.

Code:

livecd ~ # mount /dev/sda3 /mnt/gentoo
livecd ~ # cd /
livecd / # mount -t proc proc /mnt/gentoo/proc
livecd / # cp -L /etc/resolv.conf /mnt/gentoo/etc/
livecd / # chroot /mnt/gentoo /bin/bash
livecd / # env-update && source /etc/profile
livecd ~ # grub
Probing devices to guess BIOS drives. This may take a long time.

grub> root (hd0,0)
 Filesystem type is ext2fs, partition type 0x83

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)"...  16 sectors are embedded.
succeeded
 Running "install /boot/grub/stage1 (hd0) (hd0)1+16 p (hd0,0)/boot/grub/stage2 /boot/
grub/menu.lst"... succeeded
Done.

grub> quit
livecd ~ # exit
livecd / # umount /mnt/gentoo/proc /mnt/gentoo
livecd / # reboot

erusfatum · Jan 2, 2007

ok because im afraid that i will mess it up and both windows and linux wont work, can u tell me please step by step how to do it, i have a ubuntu 5.10 live cd, or some how with mandriva install cd? sorry for the trouble

PYROMANIAC · Jan 2, 2007

if i'm not mistaken, in the live cd just type alt+f2 and type gnome-terminal then mount your mbr partiton and type sudo or su 'update-grub' and it should work no?

cant boot linux after windows install

erusfatum

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splat

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erusfatum

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