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junneyang / zumastor

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UML testing broken #42

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
Several things have gone wrong with the UML testing.

On dapper, the uppercase M was a problem for the kernel build in
svnversion.  Downcasing it is not yet fully successful, and the harness is
still malfunctioning at the moment.

Instances boot, but are not getting IP addresses.  The same userspace and
UML kernel, when booted manually using the same cmdline options under tunbr
*are* working.

The changes above have also broken installs under qemu, though this looks
like simple typos.

Original issue reported on code.google.com by drake.di...@gmail.com on 15 Jan 2008 at 7:54

GoogleCodeExporter commented 9 years ago 
mkdir /dev/shm/network is not occuring at bootup, even on the old images that 
used to
work, and this prevents the instances from DHCPing.  /dev/shm is mounted, so 
it's not
an issue when tmpfs missing.  A quick login on the terminal confirms that tests 
still
pass if the network is brought up manually and sshd is restarted.

It's possible this only worked for me because I had cached images with slightly
different startup conditions, where networking worked on boot.

Original comment by drake.di...@gmail.com on 16 Jan 2008 at 1:12

GoogleCodeExporter commented 9 years ago 
This looks like it never worked for anyone but me, and still has issues with the
template image creation.  It's still broken for 0.5, and too much would need to
change and risk fixing there.  Working on cbtb/uml for 0.6 only.

Original comment by drake.di...@gmail.com on 16 Jan 2008 at 1:57

GoogleCodeExporter commented 9 years ago 
It looks like the debian archive itself changed while I was offline developing 
this
installer, and that I and I alone had an image built from an older 4.0r0 CD.  
Enough
has changed in the installer and related boot environment to cause the failures 
I'm
seeing after debootstrap.  Point releases are not supposed to be noticable like 
this.
 Sigh.

Dec. 26:
http://release.debian.org/stable/4.0/4.0r2/

Original comment by drake.di...@gmail.com on 17 Jan 2008 at 12:07

GoogleCodeExporter commented 9 years ago 
When stdin to the UML binary is redirected from /dev/null and the console is
connected to fd:0, the instance boots to single-user mode, not starting 
networking or
daemons.  When stdin is not redirected and the exact same UML launch is used 
from the
commandline, the instance will boot to full network/multi-user init state.  
Removing
con=null was done as part of debugging, to see what the consoles were doing 
while
booting, and turned out being the most significant cause of failure.
con=null being returned after about a week of debugging.

Original comment by drake.di...@gmail.com on 17 Jan 2008 at 8:45

GoogleCodeExporter commented 9 years ago 
Fixed.  smoketests take 4-10 minutes depending on system and whether ccache is
installed again.  dnsmasq.sh may need to be set up again and tunbr reinstalled
depending on when the last install happened.

Original comment by drake.di...@gmail.com on 17 Jan 2008 at 10:44