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List: illumos-developer
Subject: Re: [developer] Grub size, boot environments, and ext2/ufs2 support (Was: [RTI] RTI: 6593 want LBA48
From: "Garrett D'Amore" <garrett () damore ! org>
Date: 2016-02-29 18:24:06
Message-ID: CAAYoGd_KjoE3cwzqn9yb0hmTXttMkPACf73Ek26tyhbQ+tWfSQ () mail ! gmail ! com
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+1 for nuking Linux / BSD filesystems from our grub, and relying on
chainloader.
As our copy of grub drifts ever further from upstream (?), and is no longer
"grand" or "unified", maybe a name change is in order though? ("ibl" for
illumos boot loader?) Although with future BSD-derived boot efforts coming
(hopefully!), maybe its not worth the effort to do a rename. I just wonder
if folks using our grub-derived loader are going to be upset when certain
"grub" features they might expect from Linux are absent.
- Garrett
On Mon, Feb 29, 2016 at 9:58 AM, Toomas Soome <tsoome@me.com> wrote:
>
> > On 29. veebr 2016, at 19:47, Hans Rosenfeld <
> rosenfeld@grumpf.hope-2000.org> wrote:
> >
> > On Mon, Feb 29, 2016 at 07:45:53PM +0200, Toomas Soome wrote:
> >> my 2 bits: one should always go for native bootloader in multiboot
> >> setups, that is, chainloader setups in bios systems. anything else is
> >> only asking for trouble.
> >>
> >> in that regard, just nuke ext2 and ufs2 (linux and bsd) IMO. That will
> >> also allow to simplify kernel command; however, there is one catch:
> >>
> >> some distros include memtest86* which is often linux kernel based,
> >> which means you probably want to leave in the linux case for kernel
> >> loading (note the memtest does not include initrd tho).
> >
> > Would memtest86 loading depend in any way on ext2 support being there?
> > I'm not touching any of the other code to support Linux, although
> > gutting Linux and BSD support completely could probably save us another
> > few k. Hopefully your new loader will be ready before we need that :)
> >
>
>
> no, chainloader command will read the file into memory and then will jump
> to it - so any known file system will do.
>
> re: loader, I am trying:) I mean, the functionality is there (you can ask
> Jeff for his experience;) now its about getting the actual reviews going…
>
> rgds,
> toomas
>
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<html><html><div dir="ltr">+1 for nuking Linux / BSD filesystems from our grub, and \
relying on chainloader.<div><br /></div><div>As our copy of grub drifts ever further \
from upstream (?), and is no longer “grand” or “unified”, \
maybe a name change is in order though? (“ibl” for illumos boot \
loader?) Although with future BSD-derived boot efforts coming (hopefully!), \
maybe its not worth the effort to do a rename. I just wonder if folks using our \
grub-derived loader are going to be upset when certain “grub” features \
they might expect from Linux are absent.</div><div><br /></div><div> - \
Garrett</div></div><div class="gmail_extra"><br /><div class="gmail_quote">On Mon, \
Feb 29, 2016 at 9:58 AM, Toomas Soome <span dir="ltr"><<a \
href="mailto:tsoome@me.com" target="_blank">tsoome@me.com</a>></span> wrote:<br \
/><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex"><span class=""><br /> > On 29. veebr 2016, at 19:47, Hans \
Rosenfeld <<a href="mailto:rosenfeld@grumpf.hope-2000.org">rosenfeld@grumpf.hope-2000.org</a>> \
wrote:<br /> ><br />
> On Mon, Feb 29, 2016 at 07:45:53PM +0200, Toomas Soome wrote:<br />
>> my 2 bits: one should always go for native bootloader in multiboot<br />
>> setups, that is, chainloader setups in bios systems. anything else is<br />
>> only asking for trouble.<br />
>><br />
>> in that regard, just nuke ext2 and ufs2 (linux and bsd) IMO. That will<br />
>> also allow to simplify kernel command; however, there is one catch:<br />
>><br />
>> some distros include memtest86* which is often linux kernel based,<br />
>> which means you probably want to leave in the linux case for kernel<br />
>> loading (note the memtest does not include initrd tho).<br />
><br />
> Would memtest86 loading depend in any way on ext2 support being there?<br />
> I'm not touching any of the other code to support Linux, although<br />
> gutting Linux and BSD support completely could probably save us another<br />
> few k. Hopefully your new loader will be ready before we need that :)<br />
><br /><br /><br /></span>no, chainloader command will read the file into memory \
and then will jump to it - so any known file system will do.<br /><br \
/>
re: loader, I am trying:) I mean, the functionality is there (you can ask Jeff for \
his experience;) now its about getting the actual reviews going…<br /><br /> \
rgds,<br /> toomas<br /><div class="HOEnZb"><div class="h5"><br /><a \
href="http://www.listbox.com" rel="noreferrer" \
target="_blank">http://www.listbox.com</a><br /></div></div></blockquote></div><br \
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