Re: Installing ubuntu on external hard disk

Okay, I tried that. did all the commands up to making the .iso image
to burn onto a cd, i typed the command:

sudo mkisofs -R -b boot/grub/stage2_eltorito -no-emul-boot
-boot-load-size 4 -boot-info-table -o UbuntuBootCDForUSB.iso
bootcd

I'm doing this from the home directory as that documentation
specifies. (my home directory)

When I do that I get the message:

I: -input-charset not specified, using utf-8 (detected in locale settings)
Using MENU000.LST;1 for bootcd/grub/menu.lst~ (menu.lst)
genisoimage: Uh oh, I cant find the boot image 'boot/grub/stage2_eltorito' !

When i change directory to move to the /bootUSBCD directory (which is
where the files for doing this are stored:


I: -input-charset not specified, using utf-8 (detected in locale settings)
Using MENU000.LST;1 for bootcd/grub/menu.lst~ (menu.lst)
genisoimage: Uh oh, I cant find the boot image 'boot/grub/stage2_eltorito' !

Which creates the .iso file, but corrupts it so it can't be used.

Same message. So now I move up to the bootcd directory inside this.
Only the /boot and /grub directories are inside it.

I: -input-charset not specified, using utf-8 (detected in locale settings)
genisoimage: No such file or directory. Invalid node - 'bootcd'.

Doesn't make the .iso file.

Am I doing something wrong here? I want to make the .iso file so I
can boot into the ubuntu system on my external drive. I've followed
the instructions at the link you gave me to the letter.

Jared








On 3/8/07, Alan Pope <alan@xxxxxxxxx> wrote:
On Thu, Mar 08, 2007 at 01:01:11PM -0800, Jared Buck wrote:
Hi all,

I'm wanting to install ubuntu on an external hard drive (which is designated
/dev/sda by the system), and partition it into two parts, an ext3 system and
a swap partition, the ext3 system is labled sda1. Now, the installation
appeared to go well. But when I try to boot into the ubuntu system on the
external drive, it gives me an error message:
>
ALERT! /dev/sda1 does not exist. Dropping to a shell!


Take a look at this guide on the wiki:-

https://help.ubuntu.com/community/BootFromUSB

Especially the sections on grub.

Cheers,
Al.

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