Re: Dual boot MBR fail --> Some advises.
From: Bruce Barbour (bbarbour_at_shaw.ca)
Date: 11/23/04
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Date: Tue, 23 Nov 2004 04:22:53 GMT
Thanks, I am ok with Windows 98 but fdisk /mbr doesn't change and enable
dual-boot. Still boots into Windows only. Booted linux with floppy
but Howto instructions aren't working for me yet. Don't want to
re-install as have no backup. Might decide to boot linux only from
floppy if I can't get the dual boot right again. I'll try "Rescue" from
install Red Hat disk. Tnx again.
AnonymousFC3 wrote:
>Bruce:
> I am not sure I understand your request.
>Fails, how?
>1) There is a quite good HOWTO on dual boot.
>2) Unfortunatly dual boot is not yet adressed in the RH/Fedora distro, but
>is very doable if you knaow what you are doing.
>--
>Now I will try:
>1) To recover your windows you can boot with a dos diskette with fdisk.exe
>and type:
> fdisk /mbr
>There is no feedback, but the MBR (master boot record)will be restored and
>windows will be bootable.
>
>2) If you have made a Linux bootable diskette, you can boot Linux with it,
>and then modify the MBR as explained in the howto (OR Linux in a Nutshell).
>Hopefully you have use GRUB as your boot loader, but even with Lilo, this
>works.
>
>3) An alternative is to reinstall Linux.
>Hopefully you have a t least three partitions for Linux:
> a) /boot not that big, say 100MB is plenty, it will contains GRUB,
>and one or more kernel compressed code. Up2date will add new kernels code
>there.
>
> b) a swap partition, about twice the amount of RAM you have, 1 GB is
>usually fine.
>
> c) A partition to install Linux, and mount / 5 to * Gb is what you
>need.
>
>WHen you reinstall linux (suggest you get FC2), then go to manual install,
>and ask to install GRUB and boot loader at the first sector of the /boot
>partition. Then everything will work!
>
>Note, that it is alway a good idea to have a Linux boot diskette (or CD),
>and a copy of your fisrt sector, for both Windows, and Linux. Use dd to
>create or restore.
>
>Hope this help.
>Good Luck.
> AFC3
>
>
>
>
>
>
>
>Bruce Barbour wrote:
>
>
>
>>Red Hat 9, mbr not operating, grub.conf shown in faded text in
>>/boot/grub/grub.conf file. Windows 98 on first partition, mbr scrambled
>>after crash so only loads Windows on re-boot.
>>Can I use Rescue on install disk to re-set mbr? Red Hat Bible advice to
>>type following as root -"grub-install /dev/hda" fails - no such command.
>>Tnx
>>
>>
>
>
>
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