Ubuntu 7.04, Deleted 'vmlinuz' What to do?

[aditya.shevade]

Hi

I have OpenSuSE 10.2 and Ubuntu. I was playing with SuSE's xen and accidentally deleted the vmlinuz file of Ubuntu. And now obviously I am not able to boot in.

Is there any way to restore the file? Without entire system re installation? Then please tell me. Or can someone send me the file through email? If they work the same for all PCs which I doubt they do not.

Aditya

[freebird]

You need to chroot-change root (from suse) and do a apt-get install linux-image-(version) --reinstall to get everything file.if u have a seperate /boot partn u need to mount it inside ubuntu's root(/) partn's /boot directory.also be sure to mount it as rw.



ps:i'll post in detail later

[aditya.shevade]

^^ Yeah, details would be better. I don't want to screw up.

[freebird]

^ sure u can repair it.dont fret.I'll post in some 30 minutes sorry
OK.

First know ur ubuntu partition using fdisk -l command.
do u have a /boot partn?
I assume u dont have seperate partition for /boot? also use root permission doing following:
so:
First mount ur ubuntu "/" partn say we assume it as /dev/sda7 here.
mount it.

~$sudo  mount /dev/sda7    /mnt

==assumin u have a /mnt dir.
now chroot:

@ubuntu:~$sudo chroot  /mnt/      /bin/bash

now ur chrooted,ie ur now working in Ubuntu but using Suse's Linux kernel for temp use and from Open SUse.

~#mount /proc/

~#apt-get install linux-image-2.6.xxx    --reinstall

afterwards umount /proc;type exit or CTRL+D.now go to /mnt/boot/ folder(ubuntu) make sure ur vmlinuz,initrd etc are there.
if u have a seperate /boot for ubuntu clarify as it needs that u mount the /boot partn inside /boot dir of mounted ubuntu @ /mnt/boot
Hope u get.

[aditya.shevade]

Thanks man. Will try it out, actually doing it right now. And it seems to be working.

And by the way also tell me how to change the permissions of partition of ubuntu (mounted as /ubuntu) and make it read only. Using the command line. I know the GUI way.

[vignesh]

chmod 755 /ubuntu -R

[aditya.shevade]

thanks. I need to get a good book/ebook/any document on shell commands.

[freebird]

there is no need to set permissions.just follow the commands from a host operating system;in this case i think u got suse linux also.else u can use a live cd distro and get it mounted too.sometimes some distros auto-mount ur other partns including ubuntu;that doesnt matter.

[vignesh]

www.tldp.org

Guides for different distros

[aditya.shevade]

Originally Posted by freebird

there is no need to set permissions.just follow the commands from a host operating system;in this case i think u got suse linux also.else u can use a live cd distro and get it mounted too.sometimes some distros auto-mount ur other partns including ubuntu;that doesnt matter.

No no... You got me wrong. I did what you said, and Ubuntu is running fine. I want the partition to be read only so that I don't delete files by mistake the next time I am doing anything.

[eddie]

You should edit your fstab file and change the permissions to ro in there. That will make the permissions on /ubuntu folder permanent until you change it again in fstab