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Re: Multiple boot from USB stick

From: Karsten Malcher
Subject: Re: Multiple boot from USB stick
Date: Tue, 16 Feb 2016 10:37:34 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.5.0

Am 15.02.2016 um 17:41 schrieb Andrei Borzenkov:
>> Grub has great features - but nobody knows how to use it !? 
> Well, GRUB cannot do it itself, so no wonder you won't find it in GRUB
> documentation.

I am talking about this special feature of booting within an iso image.
The "secrets" of using isolinux are an additional part.

>> Yes - there is a discussion.
>> But i could not find any concrete solution.
> I made a quick test using freedos 1.1 CD and it booted and displayed
> installation dialogue and I was able to enter "rescue mode".
> linux16 /memdisk iso
> initrd16 /fdbase.iso
> boot
> Does it suite as a concrete solution? :)

Sorry - no it does not.
I was talking about the file FreeDOS_1.1.iso.
Where did you get this 2 iso files?
Why you can boot them without a loopback?

But this method is working now and i can understand why:
menuentry "FreeDOS ISO Image Isolinux" {
        set isofile="/boot/iso/FreeDOS_1.1.iso"
        loopback loop (hd0,1)$isofile
        linux16 (loop)/ISOLINUX/MEMDISK
        initrd16 (loop)/ISOLINUX/FDBOOT.IMG

With use of loopback i am mounting the iso file.
Then both files within the iso are loaded and executed.

FreeDOS 1.1 is starting, but then it can't work with the files within the ISO.
So i get the message: "SETUP wasn't able to locate any disks to install FreeDOS 
1.1 from"

Now some new mystic things has happened.
The file i have used has disappeared from the download page.

They are talking about a LiveCD, but there is no download for it?
I googled for it, but found this one instead:

Up to now i could not boot this image with grub ...


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