a simple,foolish question.

arunshivanandan · 08-02-2003, 02:13 PM

fdisk /MBR clears MBR.So when you boot the next time,Where is the bootloader(or something like that) for window$??ie,where will be the information abt 'where the window$ kernal lies' (for the sake of booting windows) lie??Need i do some thing after fdisk /MBR to uninstall linux and continue with windows.
i ask this out of curiosity and i dont plan to kick old tux from my box in the near future.
this may contain some foolish elements,but afterall i am a

david_ross · 08-02-2003, 02:17 PM

fidsk /mbr should reinstall the windows bootloader. You do know that you can just use grub to boot windows.

Oxagast · 08-02-2003, 02:19 PM

fdisk /MBR from dos is just gonna trash lilo or grub or whatever and make it so your just gonna boot straight back into windows i believe

TheWalkingDead · 08-02-2003, 02:22 PM

Quote:

Need i do some thing after fdisk /MBR to uninstall linux and continue with windows.

that won't "unistall" linux. it will just reload a "default" MBR....so it will be back to just windows. linux will still exist, you just won't be able to boot to it without a bootdisk....until you reinstall a bootloader that supports linux

arunshivanandan · 08-03-2003, 12:27 AM

Well,i was talking abt 'fdisk /MBR' after deleting my linux partitions(ok,i didnt mention it earlier).
So, what is the difference b/w the DOS fdisk /MBR and linux fdisk /MBR ??

arunshivanandan · 08-03-2003, 01:43 AM

What if I am having 2 linuxes and Windows??If i want to uninstall one of the linuxes,after deleting the respective linux partitions and fdisk /MBR from DOS,the MBR will contain windows bootloader only,isnt it??So how do i uninstall one of the linuxes??
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This is something i need to know,because i am going to install Mandrake.

lappen · 08-03-2003, 05:01 AM

the diffetence between dos fdisk /mbr and linux fdisk /mbr is that dos has that command and linux doesn't

if anyone know's of a way to delete the mbr in linux I would appreciate if they would post it (without any 3rd party tools)

arunshivanandan · 08-03-2003, 05:10 AM

Probably this will do it.
dd if=/dev/zero of=/dev/hda bs=512 count=1

Read: input file is /dev/zero, output file first IDE disk, block size 512b,
dump only 1 block

arunshivanandan · 08-03-2003, 05:18 AM

I got the above thing after hitting google.

Quote:

Originally posted by arunshivanandan
What if I am having 2 linuxes and Windows??If i want to uninstall one of the linuxes,after deleting the respective linux partitions and fdisk /MBR from DOS,the MBR will contain windows bootloader only,isnt it??So how do i uninstall one of the linuxes??

I think i got it.if i am having teo linexes+windows and i want to uninstall one linux,after deleting the respective partitions,i need to modify the lilo/grub.conf file,deleting those entries abt the deleted linux.And there is no need to modify MBR.Am I right??