Re: Re: GRUB testers on SPARC needed

2018-03-05 Thread Hermann Lauer 
On Mon, Mar 05, 2018 at 11:45:16AM +0100, John Paul Adrian Glaubitz wrote:
> > At least with the stretch installer there is no problem with using a MBR 
> > partitioning
> > on the am64 arch. You maybe can't select it, but if you generate a MBR 
> > partitioning using
> > the shell inside the installer this will work.
> 
> Ok, after a quick look it seems that this particular configuration is actually
> supported by the grub-installer:
> 
> > https://anonscm.debian.org/git/d-i/grub-installer.git/tree/grub-installer#n338
> 
> On EFI systems, it will test whether /var/lib/partman/ignore_uefi exists 
> which I
> assume is written by partman if it finds an MBR partition table on an EFI 
> system.

Thanks for this information.

> > Also IMHO this (EFI partition on MBR) is usefull to work, as the server 
> > BIOSses here are all able
> > to boot from an USB stick which usually have MBR partitioning.
> 
> This is for installed systems, not for installer images.

Yes, exactly: Booting the installed system via UEFI from usb stick. The netboot 
installer
has no partitioning - so no issue with installer images, at least not in my 
case.

> > As the servers used here all have an internal USB slot thats my favorite 
> > setup at the moments.
> 
> Why not use a remote KVM? ;)

Because netbooting rocks - or what are I'm missing ? ;-)

Probably we are getting to OT now...
Greetings
  Hermann

-- 
Netzwerkadministration/Zentrale Dienste, Interdiziplinaeres 
Zentrum fuer wissenschaftliches Rechnen der Universitaet Heidelberg
IWR; INF 205; 69120 Heidelberg; Tel: (06221)54-14405 Fax: -14427
Email: hermann.la...@iwr.uni-heidelberg.de

Re: Re: GRUB testers on SPARC needed

2018-03-05 Thread Hermann Lauer 
On Sat, Mar 03, 2018 at 01:09:40AM +0100, John Paul Adrian Glaubitz wrote:
> On 03/02/2018 10:27 PM, Frank Scheiner wrote:
> >> On x86, it will automatically use GPT if the machine is booted in EFI 
> >> mode. ...
...
> >> I know you try to make the most compatible design to fit all use cases, 
> >> but I don’t think we should support such edge cases when debian-installer 
> >> doesn’t
> >> support it on other platforms.
...
> Maybe it's a good idea to perform some tests with such setups on x86 (e.g.
> having MBR partitioning and then booting the machine in EFI mode and keeping
> the MBR setup) and observe what debian-installer does.

At least with the stretch installer there is no problem with using a MBR 
partitioning
on the am64 arch. You maybe can't select it, but if you generate a MBR 
partitioning using
the shell inside the installer this will work.

Also IMHO this (EFI partition on MBR) is usefull to work, as the server BIOSses 
here are all able
to boot from an USB stick which usually have MBR partitioning.

As the servers used here all have an internal USB slot thats my favorite setup 
at the moments.

Just 2cents and thank for all your work,
 greetings
   Hermann

-- 
Netzwerkadministration/Zentrale Dienste, Interdiziplinaeres 
Zentrum fuer wissenschaftliches Rechnen der Universitaet Heidelberg
IWR; INF 205; 69120 Heidelberg; Tel: (06221)54-14405 Fax: -14427
Email: hermann.la...@iwr.uni-heidelberg.de