Comment 20 for bug 1851955

Steve,
 I downloaded (downgraded) libefiboot1 and libefivar1 per your suggestion in comment #14, and here is the output (no change from previous results).

$ sudo dpkg -i libefiboot1_34-1_amd64.deb
dpkg: warning: downgrading libefiboot1:amd64 from 37-2ubuntu2 to 34-1
(Reading database ... 398727 files and directories currently installed.)
Preparing to unpack libefiboot1_34-1_amd64.deb ...
Unpacking libefiboot1:amd64 (34-1) over (37-2ubuntu2) ...
Setting up libefiboot1:amd64 (34-1) ...
Processing triggers for libc-bin (2.30-0ubuntu2) ...
$
$ sudo dpkg -i libefivar1_34-1_amd64.deb
dpkg: warning: downgrading libefivar1:amd64 from 37-2ubuntu2 to 34-1
(Reading database ... 398727 files and directories currently installed.)
Preparing to unpack libefivar1_34-1_amd64.deb ...
Unpacking libefivar1:amd64 (34-1) over (37-2ubuntu2) ...
Setting up libefivar1:amd64 (34-1) ...
Processing triggers for libc-bin (2.30-0ubuntu2) ...
$
$ sudo efibootmgr -o 0000,0003,0004,0001; echo $?
Invalid BootOrder order entry value0000,0003,0004
                                               ^
efibootmgr: entry 0004 does not exist
8
$
$ sudo efibootmgr -o 0000,0003,0001; echo $?
Could not set BootOrder: Invalid argument
8
$

Please let me know if you want me to run any more tests.

Regards,
Sri