Boot live ISO from sda, reformat sda1 and keep sda3 un-formated (Was: Install time)

[Robbi Nespu]

On 3/27/21 2:25 AM, Jerry Geis wrote:
> I have a disk with
> /dev/sda1 as /
> /dev/sda3 as /home
> 
> I want ot download the live-server (20.04) and put it on /home (ext4)
> then somehow set up the linux kernel GRUB parameters to
> use /dev/sda3/(live server iso) as the the CDROM to install from.
> 
> Then I only want to reformat /dev/sda1 as / and leave /dev/sda3 unformatted.
> 
> How is that done?   Telling grub to use the /dev/sda3/(path to iso) and 
> install away ?
> 
> Thanks
> 
> Jerry
> 
I did same thing before but not as installation purpose, I do for boot 
rescue purpose.

Try check[1] and simulate via virtual environment to confirm 
grml-rescueboot work like you want or not.

Hope this help.

[1] 
https://help.ubuntu.com/community/Grub2/ISOBoot#Creating_the_GRUB_2_Menuentry

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