torios team mailing list archive

[Israel <israel@xxxxxxxxxx>]

YAY!
Thanks Nio. It is good to know the -- puts the flags on the installed
system when installing that way.


On 02/19/2015 01:05 PM, Nio Wiklund wrote:
> [SOLVED, see the end of this mail]
>
> Den 2015-02-17 21:34, Nio Wiklund skrev:
>> Den 2015-02-17 12:07, Nio Wiklund skrev:
>>> Hi everybody,
>>>
>>> [Sorry, I missed the link in the previous mail]
>>>
>>> I iso-tested the current Vivid mini.iso (32-bit) and found a bug.
>>>
>>> No installable kernel was found in the defined APT sources
>>>
>>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1422675
>>> _____
>>>
>>> The minimal installer was booted with forcepae. It started nicely, but
>>> got stuck when preparing to download and install the kernel.
>>>
>>> No installable kernel was found in the defined APT sources ... Continue
>>> the installation without installing a kernel?
>>>
>>> I checked if this is a PAE issue ... and yes, it is.
>>>
>>> Forcepae makes the installer work, but later on, during installation, it
>>> refuses to manage the [PAE] kernel. I tested, and it works in a computer
>>> with CPU with a built-in PAE flag. And the trusty mini.iso can install
>>> in the same computer, so this is a regression.
>>>
>>> I mark it as a critical bug, because it is critical for computers with
>>> Pentium M and Celeron M computers, that have PAE capability but lack PAE
>>> flag. But yes, I know, that it does not affect computers with processors
>>> that display a PAE flag. I have even tested that is works for such a
>>> computer.
>>>
>>> If you have a computer with a Pentium M or Celeron M CPU, please click
>>> on 'Affects me too'!
>>>
>>> Best regards
>>> Nio
>>>
>>
>> This same problem occurs during iso-testing for the point version
>> 14.04.2 LTS
>>
>> lubuntu-trusty-alternate-i386.iso
>>
>> This alternate iso file does not work in my computer with a Pentium M
>> processor.
>>
>> Best regards
>> Nio
>>
> Hi everybody,
>
> Chris Bainbridge solved this problem for us:
>
> The problem is not PAE, the problem is that the kernel parameters parser
> was changed as a result of the systemd debug params controversy.
>
> You need to repeat the 'forcepae' twice in the linux kernel parameters,
> before and after the -- i.e.:
>
>         linux ... forcepae -- forcepae
>
> Kernel patch that changed the previous behaviour was:
>
>         commit 51e158c
>         Author: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
>         Date: Mon Apr 28 11:34:33 2014 +0930
>             param: hand arguments after -- straight to init
>
>         The kernel parses parameters from the kernel command line up to
> "--";
>         if it doesn't recognize a parameter and it doesn't contain a
> '.', the
>         parameter gets passed to init: parameters with '=' go into init's
>         environment, others are passed as command line arguments to init.
>         Everything after "--" is passed as an argument to init.
>
> With "forcepae -- forcepae" I did a full install of the Vivid ISO link
> above. It worked ok.
>
> (There was a non-related bug, Ubuntu/grub puts "vt.handoff=7" in
> grub.cfg which causes a black screen on boot - looks like bug #913731 or
> some related regression).
> _____
>
> I can confirm that it works according to this specified usage of double
> boot options:
>
> I tested the Ubuntu Vivid daily 32-bit mini.iso (dated feb 9) in my IBM
> Thinkpad T42 with Pentium M, and it works for me too with this double
> boot option.
>
> I clicked tab to get to the boot line.
>
> I edited the boot line from
>
>> linux vga=788 initrd=initrd.gz -- quiet
> to
>
>> linux vga=788 initrd=initrd.gz forcepae -- quiet forcepae
> and the installation of a minimal text system worked for me.
>
> -----
>
> I tested Lubuntu trusty-alternate-i386.iso (14.04.2 LTS) in my IBM
> Thinkpad T42 with Pentium M, and this bug is squashed here too with this
> double boot option.
>
> I clicked F6 and ESC to get to the boot line and changed the end of it from
>
> ... quiet --
>
> to
>
> ... quiet forcepae -- forcepae
>
> But the other red bug (1417918) must be solved by other methods.
>
> -o-
>
> It is funny that the corresponding Lubuntu desktop installer works with
> the single boot option
>
> ... quiet -- forcepae
>
> Best regards
> Nio
>


-- 
Regards

-Israel
ToriOS Team