I got a similar problem after upgrading to 18.04 (kernel 4.15.0-20). In my case the error returned by the efibootmgr is "Could not add entry to BootOrder: Interrupted system call". Also, BIOS is not accessible. I realize that the problem might be really major and it may be related to the problem caused by Intel SPI driver in 17.10.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767025 Title: package shim-signed 1.34.9+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1767025/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
