Date: Sat, 16 Aug 2025 09:49:49 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 288900] loader.efi: System won't boot without kvm or console=comconsole in loader.conf Message-ID: <bug-288900-227@https.bugs.freebsd.org/bugzilla/>
index | next in thread | raw e-mail
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=288900 Bug ID: 288900 Summary: loader.efi: System won't boot without kvm or console=comconsole in loader.conf Product: Base System Version: 13.5-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: grembo@FreeBSD.org On Hetzner AX102 hosts (Ryzen based), only EFI boot is supported. With a console connected (kvm) the systems boot just fine. With the console removed, they (presumably, since it cannot be perceived) get stuck in the boot loader or end up in a reboot loop (after a while the system shuts down). This can be worked around by setting: console="comconsole" in /boot/loader.conf. Other settings do not work (e.g., console="comconsole,efi" will get stuck as well). The downside of the workaround is that there is no console output during boot, even if a kvm is connected. While experimenting with this, I read the loader code and noticed that the loader.conf(5) man page doe not distinguish between various loaders. It appears that many settings are not supported in loader.efi (inclusing some of the settings for console). System information: BIOS Information Vendor: American Megatrends International, LLC. Version: 20.11 Release Date: 10/24/2024 Address: 0xF0000 Runtime Size: 64 kB ROM Size: 32 MB Characteristics: PCI is supported BIOS is upgradeable BIOS shadowing is allowed Boot from CD is supported Selectable boot is supported BIOS ROM is socketed EDD is supported Japanese floppy for NEC 9800 1.2 MB is supported (int 13h) Japanese floppy for Toshiba 1.2 MB is supported (int 13h) 5.25"/360 kB floppy services are supported (int 13h) 5.25"/1.2 MB floppy services are supported (int 13h) 3.5"/720 kB floppy services are supported (int 13h) 3.5"/2.88 MB floppy services are supported (int 13h) Print screen service is supported (int 5h) Serial services are supported (int 14h) Printer services are supported (int 17h) CGA/mono video services are supported (int 10h) ACPI is supported USB legacy is supported BIOS boot specification is supported Targeted content distribution is supported UEFI is supported BIOS Revision: 5.35 Handle 0x0002, DMI type 2, 15 bytes Base Board Information Manufacturer: ASRockRack Product Name: B665D4U-1L Version: 3.03 -- You are receiving this mail because: You are the assignee for the bug.home | help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-288900-227>