Step "Device for boot loader installation"

Nothing appears inside the window that should show the partitions. It's a huge white square. And bellow the window, the "already selected" option is "dev/sda. And when I press "Continue", this is the message:

Traceback (most recent call last):
File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 1524, in on_partition_list_new_activate
self.partman_dialog(devpart, partition)
File "/usr/lib/ubiquity/ubiquity/plugin.py", line 48, in wrapper
return target(self, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib/ubiquity/plugins/ubi-partman.py", line 1187, in partman_dialog
if create and partition['parted']['type'] == 'pri/log':
~~~~~~~~~^^^^^^^^^^
TypeError: 'NoneType' object is not subscriptable

Someone help, please?

Are you wiping the disk in order to install?
Or are you booting alongside an existing OS?

1 Like

Welcome to the Forum!

Are Secure Boot and Fast Boot in BIOS disabled? Could You post a Screenshot from the Install Step?