On the off chance that this issue has a broader impact I will leave a reference to https://answers.launchpad.net/ubuntu/+question/708251 wherein similar behaviours are being observed with 6.5.0-9-generic on amd64.
efivar -l returns: "efivar: error listing variables: Function not implemented", yet `ls /sys/firmware/efi` returns entries. I noticed this after upgrading from Ubuntu 23.04 when efibootmgr stopped working. Ubuntu 23.10 x86_64, 6.5.0-9-generic (Plasma 5.27.8 if that makes a difference). Happy to provide any other info on request. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-meta-riscv in Ubuntu. https://bugs.launchpad.net/bugs/2034705 Title: efivar fails to read variables Status in efivar package in Ubuntu: Invalid Status in linux-meta-riscv package in Ubuntu: In Progress Bug description: On riscv64 StarFive VisionFive 2 with U-Boot v2023.10-rc4 and kernel 6.5.0-2-generic we see this output: root@ubuntu-server:/var# ls /sys/firmware/efi/efivars/ AuditMode-8be4df61-93ca-11d2-aa0d-00e098032b8c DeployedMode-8be4df61-93ca-11d2-aa0d-00e098032b8c OsIndicationsSupported-8be4df61-93ca-11d2-aa0d-00e098032b8c PlatformLang-8be4df61-93ca-11d2-aa0d-00e098032b8c PlatformLangCodes-8be4df61-93ca-11d2-aa0d-00e098032b8c SecureBoot-8be4df61-93ca-11d2-aa0d-00e098032b8c SetupMode-8be4df61-93ca-11d2-aa0d-00e098032b8c VendorKeys-8be4df61-93ca-11d2-aa0d-00e098032b8c root@ubuntu-server:/var# efivar -l efivar: error listing variables: Function not implemented root@ubuntu-server:/var# efibootmgr -v EFI variables are not supported on this system. Expected behavior would be to display the variables. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/efivar/+bug/2034705/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
