https://bugzilla.suse.com/show_bug.cgi?id=1228808 Bug ID: 1228808 Summary: grub error: ../../grub-core/script/function.c:119:can't find command `None'. error: ../../grub-core/commands/terminal.c:113:terminal `serial' isn't found. error: ../../grub-core/commands/terminal.c:113:terminal `serial' isn't found. Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.5 Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: vinaygahlout@google.com QA Contact: qa-bugs@suse.de Target Milestone: --- Found By: --- Blocker: --- Hello, currently instance built with openSUSE-15.5 and 15.6 images provided on GCP have below errors in Serial console logs: [0m[37m[40merror: ../../grub-core/script/function.c:119:can't find command `None'. error: ../../grub-core/commands/terminal.c:113:terminal `serial' isn't found. error: ../../grub-core/commands/terminal.c:113:terminal `serial' isn't found. [0m[30m[40m[2J[01;01H[0m[37m[40m[02;30HGNU GRUB version 2.06 Although instance is able to boot without any issue, but a customer reached out asking why its happening. Is this expected behaviour for openSuse-leap-15.5 instance ? ================================================= Kernel version: 5.14.21-150500.55.62-default opensuse-leap-15-5:~ # cat /etc/os-release NAME="openSUSE Leap" VERSION="15.5" ID="opensuse-leap" ID_LIKE="suse opensuse" VERSION_ID="15.5" PRETTY_NAME="openSUSE Leap 15.5" ANSI_COLOR="0;32" CPE_NAME="cpe:/o:opensuse:leap:15.5" BUG_REPORT_URL="https://bugs.opensuse.org" HOME_URL="https://www.opensuse.org/" DOCUMENTATION_URL="https://en.opensuse.org/Portal:Leap" LOGO="distributor-logo-Leap" opensuse-leap-15-5:~ # opensuse-leap-15-5:~ # cat /etc/default/grub # If you change this file, run 'grub2-mkconfig -o /boot/grub2/grub.cfg' afterwards to update # /boot/grub2/grub.cfg. # Uncomment to set your own custom distributor. If you leave it unset or empty, the default # policy is to determine the value from /etc/os-release # GRUB_DISTRIBUTOR="" GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=1 GRUB_CMDLINE_LINUX_DEFAULT="console=ttyS0,38400n8 net.ifnames=0 dis_ucode_ldr multipath=off" GRUB_CMDLINE_LINUX="root=LABEL=ROOT" # Uncomment to automatically save last booted menu entry in GRUB2 environment # variable `saved_entry' #GRUB_SAVEDEFAULT="true" # Uncomment to enable BadRAM filtering, modify to suit your needs # This works with Linux (no patch required) and with any kernel that obtains # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' #GRUB_GFXMODE=640x480 # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux #GRUB_DISABLE_LINUX_UUID=true # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1" GRUB_DISABLE_LINUX_UUID=true GRUB_DISTRIBUTOR="openSUSE-Leap-15.5" GRUB_ENABLE_LINUX_LABEL=true GRUB_GFXMODE=auto #GRUB_SERIAL_COMMAND="None" GRUB_TERMINAL_INPUT="console" GRUB_TERMINAL_OUTPUT="console" SUSE_REMOVE_LINUX_ROOT_PARAM=true ================================================= I tested with one of the instance, and this can be fixed by changing options in /etc/default/grub from GRUB_SERIAL_COMMAND="None" GRUB_TERMINAL_INPUT="serial" GRUB_TERMINAL_OUTPUT="serial" to #GRUB_SERIAL_COMMAND="None" GRUB_TERMINAL_INPUT="console" GRUB_TERMINAL_OUTPUT="console" Can someone please confirm if this is a bug and if we can permanently fix this in image. -- You are receiving this mail because: You are on the CC list for the bug.