Ubuntu 22.10, Unknown kernel command line parameters

heynnema

3/6/24, 5:39 PM

Ubuntu 22.10 Desktop

Seeing these messages in /var/log/syslog...

Mar  6 09:09:09 al-Inspiron-7700-AIO kernel: [    0.062877] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.19.0-35-generic root=UUID=f0db2226-e28d-46dd-9b5a-457c87987ed2 ro quiet splash systemd.restore_state=0 acpi_backlight=vendor acpi_osi=Linux vt.handoff=7

Mar  6 09:09:09 al-Inspiron-7700-AIO kernel: [    0.062945] Unknown kernel command line parameters "splash BOOT_IMAGE=/boot/vmlinuz-5.19.0-35-generic", will be passed to user space.

Here's my /etc/default/grub...

    GRUB_DEFAULT=saved
    GRUB_SAVEDEFAULT=true
    GRUB_TIMEOUT_STYLE=hidden
    GRUB_TIMEOUT=10
    GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
    
    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash systemd.restore_state=0 acpi_backlight=
    vendor acpi_osi=Linux"
    GRUB_CMDLINE_LINUX=""

I've tried (even) commenting out the last two lines, and I still get the error message.

This is in /boot/grub/grub.cfg...

        linux   /boot/vmlinuz-5.19.0-35-generic root=UUID=f0db2226-e28d-46dd-9b5a-457c87987ed2 ro  quiet splash systemd.restore_state=0 acpi_backlight=vendor acpi_osi=Linux $vt_handoff
        linux   /boot/vmlinuz-5.19.0-35-generic root=UUID=f0db2226-e28d-46dd-9b5a-457c87987ed2 ro recovery nomodeset dis_ucode_ldr

Any ideas where this error is coming from?

608

0 + 1

grub2

kernel

22.10

steeldriver

3/6/24, 6:24 PM

I don't think it's an error exactly - just an informational message telling you that those parameters are ignored by the kernel and hence passed to `init` (i.e. `systemd`). See somewhat related [Systemd invocation parameters](https://unix.stackexchange.com/questions/333297/systemd-invocation-parameters)

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Ubuntu 22.10, Unknown kernel command line parameters

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.