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It would appear that on May 31, Peter Boy did say to Chiheb Djabri:
If you have lost your grub by a windows install, you lost your MBR
(the
first boot sector on your harddisk). The content of your /boot partition
is still in place.
To reinstall the mbr you have to perform
grub-install /dev/hda
You should boot from the first Fedora CD in rescue mode, the program
will found your Linux installation and mount it. It will give you some
information how to make your installed root partition to your new root
(chroot command). Check, that the /boot partition is mounted, too.
Hmmmn interesting... I too am new to grub (much more used to lilo) And
so since I hadn't yet found the time to learn this I was pleased to see
this info...
I have a couple of questions though.
With lilo, if I install it to mbr with "lilo -b /dev/hda" I can also make
a back up boot floppy with "lilo -b /dev/fd0" without breaking the one
in /dev/hda... That is, I normally would get my lilo boot from the mbr of
/dev/hda. But if something trashes the mbr All I have to do is pop in the
lilo boot floppy and I can still boot any of my {undamaged} linux, and
probably my win98 & DrDos. I wouldn't need to fuss with the rescue mode
at all. I just rerun "lilo -b /dev/hda" And I'm done. (though I may have
had to "sys" the windows or DrDos partitions to make them bootable again
first...)
With grub, if I make a working boot floppy with "grub-install /dev/fd0"
then the one I had in /dev/hda is broken (infinte loop of the word grub
being printed to the screen) If I boot from the floppy and do a
"grub-install /dev/hda" The mbr can boot again, but now the grub floppy
boot is broke...
1) is it possible to install the same grub to start from the mbr OR from
a floppy depending on which bios finds first?
2) In case I must depend on the rescue mode sometime, Will it be able to
find the right linux installation on a system with
FC2, FC1, MDK9.1, SuSE 7.3, Win98se, AND Dr Dos on it. Or would the
following partition tables confuse it
- --
| ? ?
|
| -=- -=- I'm NOT clueless...
| <?> <?> But I just don't know.
| ^ Joe (theWordy) Philbrook
| --- J(tWdy)P
| <jtwdyp(a)ttlc.net>
| ? ?
[root@localhost jtwdyp]# fdisk -l /dev/hda /dev/hdc
Disk /dev/hda: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 638 5124703+ c W95 FAT32 (LBA)
/dev/hda2 639 1217 4650817+ f W95 Ext'd (LBA)
/dev/hda3 1218 3162 15623212+ 83 Linux
/dev/hda4 3163 4865 13679347+ 83 Linux
/dev/hda5 639 1021 3076416 b W95 FAT32
/dev/hda6 1022 1148 1020096 83 Linux
/dev/hda7 1149 1217 554211 82 Linux swap
Disk /dev/hdc: 61.4 GB, 61492838400 bytes
255 heads, 63 sectors/track, 7476 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hdc1 * 1 261 2096451 6 FAT16
/dev/hdc2 262 3586 26708062+ 5 Extended
/dev/hdc3 3587 5531 15623212+ 83 Linux
/dev/hdc4 5532 7476 15623212+ 83 Linux
/dev/hdc5 262 366 843381 83 Linux
/dev/hdc6 367 427 489951 83 Linux
/dev/hdc7 428 792 2931831 83 Linux
/dev/hdc8 793 1400 4883728+ 83 Linux
/dev/hdc9 1401 1522 979933+ 83 Linux
/dev/hdc10 1523 3470 15647278+ 83 Linux
/dev/hdc11 3471 3586 931738+ 82 Linux swap
[root@localhost jtwdyp]#
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