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Re: Removing grub *WITHOUT* using other OS'es. Was: ...RemovingGrub (Ag
From: |
Grant Edwards |
Subject: |
Re: Removing grub *WITHOUT* using other OS'es. Was: ...RemovingGrub (Again) |
Date: |
Fri, 5 Apr 2002 00:10:34 -0600 |
User-agent: |
Mutt/1.2.5i |
On Thu, Apr 04, 2002 at 03:57:39PM -0600, RD Lawrence wrote:
> Right. It puts back what was there before. What we need is
>
> 1) a facility for saving the MBRs and PBRs prior to grub
> installation;
dd if=/dev/hda of=backupBootSector bs=512 count=1
> 2) a facility for restoring a vanilla MBR and PBR if necessary,
> without overwriting the partition table; and
Don't know what "a vanilla MBR and PBR" means. Assuming you've
got one in a file named vanillaBootloader:
dd if=/dev/hda of=/tmp/foo bs=512 count=1 # grab current
boot sector
cp vanillaBootloader /tmp/bar # working copy of
"vanilla"
dd if=/tmp/foo of=/tmp/bar bs=1 skip=446 seek=446 count=66 # copy current
partition table
dd if=/tmp/bar of=/dev/hda bs=512 count=1 # install it
> 3) a facility for restoring former MBRs and PBRs that have been saved.
dd if=backupBootSector of=/dev/hda1 bs=512 count=1
> And this really ought to be done within the linux environment,
> without falling back on that unmentionable M$ stuff (even the
> free versions). :-)
dd is your friend.
WARNING: I haven't tested any of the above. There may be
typos...
- Removing grub *WITHOUT* using other OS'es. Was: ...Removing Grub (Again), (continued)
- Re: Removing grub *WITHOUT* using other OS'es. Was: ...Removing Grub (Again), Iain Rae, 2002/04/04
- Re: Removing grub *WITHOUT* using other OS'es. Was: ...Removing Grub (Again), Kingsly John, 2002/04/04
- Re: Removing grub *WITHOUT* using other OS'es. Was: ...Removing Grub (Again), Grant Edwards, 2002/04/05
- Re: Removing grub *WITHOUT* using other OS'es. Was: ...Removing Grub (Again), Kingsly John, 2002/04/05
- Re: Removing grub *WITHOUT* using other OS'es. Was: ...Removing Grub (Again), Yoshinori K. Okuji, 2002/04/05
- Re: Removing grub *WITHOUT* using other OS'es. Was: ...RemovingGrub (Again), RD Lawrence, 2002/04/04
- Re: Removing grub *WITHOUT* using other OS'es. Was: ...RemovingGrub (Again),
Grant Edwards <=
- Re: Removing grub *WITHOUT* using other OS'es. Was: ...Removing Grub (Again), Pixel, 2002/04/06
- Re: Need Help on Removing Grub (Again), Pavel Roskin, 2002/04/04