Dell Chromebook 5190 - Disk Partition Map

The Developer Mode switch turns o veried boot (at the Kernel stage) to enable users to run Chromium OS (or other OS). The BIOS is
always veried.
Disk Partition Map
There are two copies of Chrome OS on disk: an active copy and a backup copy. Each copy consists of a kernel partition and a root le
system. The backup copy is updated automatically in the background. Users only need to reboot. The partition contains encrypted user
data and is also used in the factory for storing test software.
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Software