Stupid mistake

[tpcm1]

Hi all

been using this site for years so long time user first time post er

I was in fedora 16 trying to install edubuntu on to a usb key to set it up for my daughter. silly my copyed the files to my main hd (sda) now i have lost my fedora grub details. I know there is a way to reinstall my grub so it can use fedora (sdb1).

but for the life if my I cant figure out the correct string to type in. I had windows on the sda partition but grub2 was my loader. now I dont care about loosing windows but i do care about loosing my fedora. is there away to get back my original grub 2?

[stevea]

Boot the install dvd in rescue mode, follow the instrctions to "cd /sysimage/mnt; chroot ." or similar, then
grub2-install /dev/sda # or other drive

[tpcm1]

Um there is no rescue mode on the install live cd.

---------- Post added at 10:38 PM ---------- Previous post was at 10:06 PM ----------

I boot in to fedora (from a live DVD) and go to a terminal it doesnt understand cd /sysimage/mnt chroot

---------- Post added at 10:38 PM ---------- Previous post was at 10:38 PM ----------

I boot in to fedora (from a live DVD) and go to a terminal it doesnt understand cd /sysimage/mnt chroot

[nonamedotc]

Originally Posted by tpcm1

[/COLOR]I boot in to fedora (from a live DVD) and go to a terminal it doesnt understand cd /sysimage/mnt chroot

I believe, it should be /mnt/sysimage.

See this link on rescue mode from Fedora Documentation page

Hope this helps.

[Salamandra]

I have solved my grub problems by downloading the netinstall cd and using it to upgrade the existing installation. It rewrites grub and makes an update.

[marriedto51]

Good to see you've got it solved.

Just for information: stevea's advice related to the installation DVD; you are right that there is no resuce mode with the live CD.

But you can get something very similar using the live CD: boot the CD and wait for the boot menu; press TAB and add a letter 's' to the end of the kernel line, then press Return. This should drop you to a shell which is running as part of the live OS. From there, you can manually mount your hard disk partitions, and use grub2-install to recover the grub2 entry in the MBR. (You will need to use the "--boot-directory=DIR" option to grub2-install to point to the mounted boot directory on your hard disk, rather than the boot directory of the running live OS.)

(Sadly, I've had to do this many more times than I should like -- PEBCAK in each case!)

[stevea]

That's why I said

the install dvd

FWIW You can do similar from a live CD.

As root mount the "/" root file and the /boot (if separate) under that. Example mount at "/tmp/mp"

Copy all the /dev entries to the root fs
cp -pr /dev/* /tmp/mp/dev

cd /tmp/mp
chroot .
grub2-install /dev/XXXX - the root fs

[discover]

How to tell parent about my stupid mistake with minimum hurting them?