Syslinux - Nov 2016 - Booting from various ISO files directly

Hello,

Various boot parameters can be considered in alternative GRUB 2 configurations.
https://help.ubuntu.com/community/Grub2/ISOBoot/Examples


I would like to clarify command line parameters like the following a bit more
for the purpose of booting ISO images better.
http://www.syslinux.org/wiki/index.php?title=MEMDISK#-_Passing_ISO_parameter_to_the_kernel

1. bootfrom

2. findiso

3. iso-scan/filename


Which Linux variants do support them nowadays directly?

How are the chances to specify predictable (persistent) names there instead of
?old style? device names?
https://superuser.com/questions/275135/linux-changing-device-names-in-dev-causes-problems-on-boot
https://blog.flameeyes.eu/2013/03/predictably-non-persistent-names

Would you like to improve the support for other path specifications?

Regards,
Markus

On 11/14/16 02:10, SF Markus Elfring via Syslinux wrote:
> Hello,
>
> Various boot parameters can be considered in alternative GRUB 2
configurations.
> https://help.ubuntu.com/community/Grub2/ISOBoot/Examples
>
> I would like to clarify command line parameters like the following a
bit more
> for the purpose of booting ISO images better.
>
http://www.syslinux.org/wiki/index.php?title=MEMDISK#-_Passing_ISO_parameter_to_the_kernel
>
> 1. bootfrom
>
> 2. findiso
>
> 3. iso-scan/filename
>
> Which Linux variants do support them nowadays directly?
>
MEMDISK is intended to be used for operating systems which don't have a
direct way to boot.  This looks to me as a way for Grub2 to access the
internals of an .iso image as if it was a disk.  This ought to be
possible to implement in some form with the multidisk option, but that's
separate from MEMDISK.

This should be independent from at least the Linux kernel.

So I'm not sure there is a question here that relates to Syslinux, but
if there is it would be great if you could restate it.

There is a multifs branch in the git repo already.  It probably needs to
be merged and synced with the master branch, though; but this is well
within the scope of what can be done using that kind things.

	-hpa

> So I'm not sure there is a question here that relates to Syslinux,
> but if there is it would be great if you could restate it.
The boot parameters ?findiso?and ?iso-scan/filename? were mentioned in an
article.
http://www.syslinux.org/wiki/index.php?title=MEMDISK#-_Passing_ISO_parameter_to_the_kernel

So I assumed that there might be more software developers or system
administrators
around who would like to share a bit more knowledge for better handling
of ISO images.

> There is a multifs branch in the git repo already.
How is this software development related to my clarification request?

Regards,
Markus