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Views: 4,368β€…    Votes:  5β€…    βœ… Solution
Tags: dual-boot   18.04   system-installation   live-usb   acpi  
Link: πŸ” See Original Answer on Ask Ubuntu πŸ”—

URL: https://askubuntu.com/q/1064531
Title: Can't install Ubuntu from an USB stick: AE_NOT_FOUND, AE_ALREADY_EXISTS
ID: /2018/08/11/Can_t-install-Ubuntu-from-an-USB-stick_-AE_NOT_FOUND_-AE_ALREADY_EXISTS
Created: August 11, 2018    Edited:  June 12, 2020
Upload: November 24, 2022    Layout:  post
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As per this Arch Linux thread it’s not an error:

These kinds of β€œerrors” have been discussed ad nauseam, it’s simply
the kernel telling you that the ACPI information received from the
system seems to be incomplete in some way, update your BIOS/UEFI in
hopes for a proper fix or ignore the error if you don’t notice
anything off with your system.

(And please don’t do something dumb like setting acpi=off just to get
rid of these messages)

What is causing the freeze is AFTER the ACPI messages

Below is a β€œgood” boot log. What you need to figure out is which program after the ACPI entries is causing the lock up:

Aug 11 15:28:35 alien kernel: [    0.004000] pid_max: default: 32768 minimum: 301
Aug 11 15:28:35 alien kernel: [    0.004000] ACPI: Core revision 20170531
Aug 11 15:28:35 alien kernel: [    0.025175] ACPI Error: [\_SB_.PCI0.XHC_.RHUB.HS11] Namespace lookup failure, AE_NOT_FOUND (20170531/dswload-210)
Aug 11 15:28:35 alien kernel: [    0.025179] ACPI Exception: AE_NOT_FOUND, During name lookup/catalog (20170531/psobject-252)
Aug 11 15:28:35 alien kernel: [    0.025206] ACPI Exception: AE_NOT_FOUND, (SSDT:xh_rvp10) while loading table (20170531/tbxfload-228)
Aug 11 15:28:35 alien kernel: [    0.032753] ACPI Error: 1 table load failures, 9 successful (20170531/tbxfload-246)
Aug 11 15:28:35 alien kernel: [    0.033477] Security Framework initialized
Aug 11 15:28:35 alien kernel: [    0.033479] Yama: becoming mindful.
Aug 11 15:28:35 alien kernel: [    0.033493] AppArmor: AppArmor initialized
Aug 11 15:28:35 alien kernel: [    0.034589] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
Aug 11 15:28:35 alien kernel: [    0.035039] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
Aug 11 15:28:35 alien kernel: [    0.035066] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
Aug 11 15:28:35 alien kernel: [    0.035081] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes)
Aug 11 15:28:35 alien kernel: [    0.035221] CPU: Physical Processor ID: 0
Aug 11 15:28:35 alien kernel: [    0.035222] CPU: Processor Core ID: 0
Aug 11 15:28:35 alien kernel: [    0.035226] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
Aug 11 15:28:35 alien kernel: [    0.035227] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)
Aug 11 15:28:35 alien kernel: [    0.035228] FEATURE SPEC_CTRL Present
⇧ Directly selecting text on hyperlinks? (In Windows with Alternate+Drag cursor, no drag/drop) Cpufrequtils available frequencies  β‡©