boot cheatcodes fromiso or fromhd is missing

[pet]

see boot cheatcode possibilities in knoppix or kanotix
would be a usefull feature

regards pet

[Paul Sladen (sladen)]

Hello 'pet-mueller', thank you for your report. Unfortunately, I am unsure what a "boot cheatcode" is, or if the names "fromiso" or "fromhd" are programs, or something else.

Could you possible try to phrase the question in a different way to help us understand; perhaps with any URL links to other websites that might give a broad picture of the issue, or perhaps by attaching a screenshot.

The most important thing would be an overview to give the *context*, so far I can only tell that this might be something to do with LiveCDs (Knoppix is a LiveCD) and maybe to do with booting since that is the first word in the subject line.

Many Thanks, -Paul

[Brian Murray (brian-murray)]

We are closing this bug report as it lacks the information, described in the previous comments, we need to investigate the problem further. However, please reopen it if you can give us the missing information and feel free to submit bug reports in the future.

[Xaocon (xaocon)]

I know this is old but it seemed to make more sense then starting another. A cheatcode is an argument passed to the system during boot. Examples include splash, noacpi, quiet, and fromiso. If you take a look at /proc/cmdline you will see what yours passed. Many distros add neat options to help you boot in strange ways without recreating the whole disk. This bug may have been fixed already but maybe it could be looked at again and closed if it's done or there is no real interest in having those features. I am looking at it today because I was trying to boot from iso with grub2 today.

[Xaocon (xaocon)]

Please feel free to change again after taking a look at my comment.

[iRon (theoneandonlyron)]

It is already possible with the "iso-scan/filename" cheatcode. Here is an example grub2 menu entry:

menuentry "Ubuntu" {
 loopback loop /boot/isos/ubuntu.iso
 linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=/boot/isos/ubuntu.iso quiet splash noprompt --
 initrd (loop)/casper/initrd.gz
}

[Xaocon (xaocon)]

Wow! Nice trick. Thanks for the help.

-Evan

On Thu, Jan 29, 2009 at 8:29 AM, iRon <email address hidden> wrote:
> It is already possible with the "iso-scan/filename" cheatcode. Here is
> an example grub2 menu entry:
>
> menuentry "Ubuntu" {
> loopback loop /boot/isos/ubuntu.iso
> linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=/boot/isos/ubuntu.iso quiet splash noprompt --
> initrd (loop)/casper/initrd.gz
> }
>
> --
> boot cheatcodes fromiso or fromhd is missing
> https://bugs.launchpad.net/bugs/94204
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in Ubuntu: Incomplete
>
> Bug description:
> see boot cheatcode possibilities in knoppix or kanotix
> would be a usefull feature
>
> regards pet
>