You are viewing an old version of this page. View the current version.

Compare with Current View Page History

Version 1 Next »

Blancco Mobile Device Eraser version 3.7.2 will introduce two different kernel versions in the software to provide better hardware support for variety of Nvidia GPUs and Coffeelake based Intel processors. By default the older version of the kernel will be used. Newer kernel should be used if there is issue booting with the older kernel (especially with Nvidia GPUs and Coffeelake based processors).

In order to change the kernel version in use, follow below steps:

  1. During the Grub boot menu, press "e" to edit the booting parameters.
  2. Locate line starting with "linux /isolinux/vmlinuz".
  3. Edit the line and add "_latest" (without quotation marks) after "linux /isolinux/vmlinuz".
  4. Continue the booting process by pressing F10 key.





We couldnt get all NVidia GPU's and Coffeelakes to work with old kernel, nor could we make all the old PC's to work with new kernel. Thus 3.7.2 is going out with two different kernel version. By default the old version is used.

 

To change from old to new, bootmenu editor needs to be opened when booted by hitting 'e'. Then the opened grubconfig needs to modified so that line 'linux /isolinux/vmlinuz' needs to changed to 'linux /isolinux/vmlinuz_latest'. Once BMDE boots up it will check if the grubconfig has been changed and will modify the one in harddisk and change the kernel, so this modification only needs to be done one time. Updates etc, will pick the running kernel version and modify grubmenu if needed so not even then should manual modifications be needed.

 

This is hopefully only temporary solution until usbcreator can start picking up the grubconfig from our ISO so we can have the new kernel appearing as menuitem by default.

 

With the new kernel there is most probably going to be bunch of questions with misbehaving HW.  What we have seen so far...

1) usbconnectivity does not work on some machines. This is fixed by adding 'iommu=pt' or 'iommu=soft' to kernel parameters in bootmenu

2) Some nvidia cards dont like to co-live with nouveau (opensource nvidia driver). If X fails to start add 'modprobe.blacklist=nouveau'

  • No labels