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Author: Arnt Karlsen
Date:  
To: dng
Subject: Re: [DNG] dmesg printout when starting VirtualBox VM
On Sat, 25 Nov 2023 21:35:56 -0300, altoid wrote in message
<656292EC.5476.34D0CD@???>:

> Hello:
>
> On 25 Nov 2023 at 23:57, Arnt Karlsen wrote:
>
> > ...meaning Microsoft Wintendo XP with Service Pack 3?
> Yes.
>
> > ... did it work with earlier versions of VirtualBox?
> Yes, as far as I can recall, it did.
>
> As I use it (XPSP3) only every so often, just for the Blackberry.
> Unfortunately, I cannot find the original *.iso image I made of the
> CD and the damn thing is damaged.
>
> > ..does it work with the latest version of Debian Sid,
> > or Red Hat etc systemd based vm guests?
> No idea.
> I stay well away from *anything* with systemd.


..this guest vm test is the _only_ valid reason to
(test) run any systemd thing. Do it, and with at
least the same WVU-CAFEE style scrutiny used when
they caught VW et al in Dieselgate.

..log, tcpdump, udpdump, netcat etc every damned
thing it can possibly touch, to see what it does,
and what it tries to do.

..an addressless sniff bridge can be used to tease
out any net traffic, just plug it in between the vm
and the net before booting the vm and just copy all
the net traffic to disk.
(Only done that in hardware, needs 2 addressless
net cards and bridge-utils, sniffing etc was done
to debug my bandwidth throttle code setup for a
small wifi based isp 2 decades ago.)

..this guest vm test will provide a new data point
that may help fix bugs or expose new shenanigans
"from somebody."

> I had my share of *registry class* viruses (my definition of systemd)
> in the many years I did maintenance for MS OSs for a living.
>
> > Systemd "is avare of vm hosts" and might be set up to e.g. refuse
> > booting on non-systemd hosts, but that shouldn't kill
> > Wintendo XP SP3 boots?
> The thing is that XPSP3 boots but most times refuses to shut down.


..how do you shut it down, in the vm or from the host?

..does the vm guest even need to be shut down, if it can
be "paused" or somesuch by VirtualBox before VirtualBox
is shut down?

..for the vm guest it should just be an "Oh. the clock is
wrong again." type warning message next time VirtualBox
"un-pauses" the guest vm.

> The Blackberry programme also seems to work properly.
>
> > I'm guessing a new bug in VirtualBox 7.0.12 r159484,
> I thought about that but but discarded the idea.
> You may have something there.
>
> > I only found 2 versions of this post:
> > https://forum.macrium.com/75031/viboot-cant-find-and-Virtualbox-Vers
> > ion-7012-r159484-Qt5152
> > https://forum.macrium.com/PrintTopic75031.aspx
> I'll have a look.
>
> There does not seen to be a readily accessible forum for VirtualBox
> users and that I think you have to have an Oracle account to use the
> one I found. (?)


..maybe a good time to chk out Xen, QEMU, KVM, Bochs, 86Box?:
https://www.noobslab.com/2020/03/top-5-virtualbox-alternatives-for-linux.html
https://alternativeto.net/software/virtualbox/
https://www.addictivetips.com/ubuntu-linux-tips/best-virtualbox-alternatives-on-linux/

> https://forums.virtualbox.org/index.php
> https://login.oracle.com/mysso/signon.jsp
> https://profile.oracle.com/myprofile/account/create-account.jspx
>
> > and your https://dev1galaxy.org ...
> Yes, cross posted.
> Sorry.


..don't be, it was way more readable than your post here.

> > ..wild ass guessing here ...
> > ..does it have _any_other_ net access?    
> Not a chance.
> The network adapter is disabled.


...I totally believe your ambition here. ;o)
Now, can you verify it? XoD

> I'll set it to use just one CPU and see what happens.
> Then I may attempt to roll back to the previous version of VBox.
> Maybe there's something there.



--
..med vennlig hilsen = with Kind Regards from Arnt Karlsen
...with a number of polar bear hunters in his ancestry...
Scenarios always come in sets of three:
best case, worst case, and just in case.