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gislab-npo / gislab

GIS.lab - total reduction of deployment and maintenance costs for complete free and open source geospatial infrastructure
http://gislab-npo.github.io/gislab/
GNU General Public License v3.0
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xenial iso image refuses to boot #495

Closed landam closed 7 years ago

landam commented 8 years ago

I tried to create GIS.lab ISO image based on Ubuntu 16.04 Server ISO. After installation the unit refuses to boot, the result is a black screen and nothing happens. I was able to install plain OS. There were few differences, except of Apt proxy server the installer asked me also for:

The installer based on Ubuntu 12.04 works as expected (same unit, same usb flash disc, same procedure). The system boots normally.

I tried to create bootable USB disk based on original ubuntu-server-16.04 ISO. The OS after installation booted normally, so it must be something related to GIS.lab ISO creation process. Is xenial installer expected to work?

See also related discussion at https://lists.osgeo.org/pipermail/gis.lab/2016-June/000130.html

mpastor commented 8 years ago

could you try to boot with "nomodeset" kernel parameter? after the initial POST test press "escape" key (more time) to enter GRUB menu. move cursor on "*Ubuntu" and press "e" key. find line with something like:

linux /vmlinuz-4.4... root=/dev/... ro quite...

and append "nomodeset" to the end of this line and press "f10" key. eventually you can press "escape" key during boot.

landam commented 8 years ago

@mpastor thanks for tip, I tried that but it had no effect (silent black screen)

landam commented 8 years ago

Anyway, the system boots. I discovered that when I choosing "Advanced options for Ubuntu" -> Ubuntu (recovery mode)". So, something related to video card? Strangely I don't have this issue when installing OS from original Ubuntu ISO.

landam commented 8 years ago

Regardless a black screen I am able to login via ssh normally. So the OS is running.

mpastor commented 8 years ago

try to remove "splash" parameter and add "nomodeset".

mpastor commented 8 years ago

if it still did not work, try add another parameter "i915.modeset=0".

landam commented 8 years ago

@mpastor none of them helped, but I discovered that removing $vt_handoff helps. Do you know how to modify providers/gislab-unit/iso to remove this parameter from GRUB setparams? Ideally splash parameter should be also removed.

landam commented 8 years ago

Regarding "The installer has detected that the following disks have mounted partitions", see also related https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1347726