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[SOLVED] kernel updates - error messages

Posted: Mon Jul 15, 2019 12:52 pm
by elmarts
Booting with grub into mint 19.1 I was using an older kernal (4.15.0-47-generic), and tried to update to the new 4.5 series kernal with ukuu. That resulted in a very unhappy system, with jerky mouse lagging reactions to command inputs, etc. So I tried to revert to the latest of the 4.15 series (4.15.18-041518-generic). I got my system back, but during the boot before the login window there was a series of error messages, one of which said something about acpi not found, and 1 table not loaded (or something like that). Questions: are the boot errors logged somewhere and where can I find them? I will post those errors and ask about them when I find out how to capture the error messages. thanks.

Re: kernel updates - error messages

Posted: Tue Jul 16, 2019 7:12 am
by elmarts
Can't find a log, but the first line of the 3 lines of error start with "namespace lookup failure" -

Re: kernel updates - error messages

Posted: Tue Jul 16, 2019 7:16 am
by deepakdeshp
When I boot the system, the kernel gives some errors.But the system works flawlessly and I just ignore these errors.

Re: kernel updates - error messages

Posted: Tue Jul 16, 2019 8:27 am
by gm10
How about you use a supported kernel instead of installing super-outdated testing kernels via ukuu? Those kernels you are installing went end-of-life a year ago.

Update Manager > View > Linux kernels for all your kernel needs.

PS: But to actually answer your question: /var/log/kern.log

Re: kernel updates - error messages

Posted: Wed Jul 17, 2019 10:24 am
by elmarts
gm10 wrote:
Tue Jul 16, 2019 8:27 am
How about you use a supported kernel instead of installing super-outdated testing kernels via ukuu? Those kernels you are installing went end-of-life a year ago.
Because using a 5 series kernel borks my system while 4.15.0-54-generic at least lets it run OK?
[/quote]PS: But to actually answer your question: /var/log/kern.log[/quote]
That worked - here is the error:
Jul 15 07:14:39 Shinobi-L kernel: [ 0.000000] ACPI: Core revision 20170831
Jul 15 07:14:39 Shinobi-L kernel: [ 0.000000] ACPI Error: [\_SB_.PCI0.XHC_.RHUB.HS11] Namespace lookup failure, AE_NOT_FOUND (20170831/dswload-210)
Jul 15 07:14:39 Shinobi-L kernel: [ 0.000000] ACPI Exception: AE_NOT_FOUND, During name lookup/catalog (20170831/psobject-253)
Jul 15 07:14:39 Shinobi-L kernel: [ 0.000000] ACPI Exception: AE_NOT_FOUND, (SSDT:xh_rvp08) while loading table (20170831/tbxfload-228)
Jul 15 07:14:39 Shinobi-L kernel: [ 0.000000] ACPI Error: 1 table load failures, 5 successful (20170831/tbxfload-246)

Re: kernel updates - error messages

Posted: Wed Jul 17, 2019 10:40 am
by gm10
elmarts wrote:
Wed Jul 17, 2019 10:24 am
gm10 wrote:
Tue Jul 16, 2019 8:27 am
How about you use a supported kernel instead of installing super-outdated testing kernels via ukuu? Those kernels you are installing went end-of-life a year ago.
Because using a 5 series kernel borks my system while 4.15.0-54-generic at least lets it run OK?
4.15.0-54-generic is Mint's current default kernel and not anything you'd need Ukuu for. It is perfectly up to date. On the other hand, the kernel you explicitly mentioned in the OP (4.15.18-041518-generic) is an unsupported test kernel that's long outdated.
elmarts wrote:
Wed Jul 17, 2019 10:24 am
here is the error:
Jul 15 07:14:39 Shinobi-L kernel: [ 0.000000] ACPI: Core revision 20170831
Jul 15 07:14:39 Shinobi-L kernel: [ 0.000000] ACPI Error: [\_SB_.PCI0.XHC_.RHUB.HS11] Namespace lookup failure, AE_NOT_FOUND (20170831/dswload-210)
Jul 15 07:14:39 Shinobi-L kernel: [ 0.000000] ACPI Exception: AE_NOT_FOUND, During name lookup/catalog (20170831/psobject-253)
Jul 15 07:14:39 Shinobi-L kernel: [ 0.000000] ACPI Exception: AE_NOT_FOUND, (SSDT:xh_rvp08) while loading table (20170831/tbxfload-228)
Jul 15 07:14:39 Shinobi-L kernel: [ 0.000000] ACPI Error: 1 table load failures, 5 successful (20170831/tbxfload-246)
That shouldn't be a problem, but go look for a BIOS update that might fix this.

Re: kernel updates - error messages

Posted: Wed Jul 17, 2019 8:47 pm
by elmarts
4.15.0-54-generic is Mint's current default kernel and not anything you'd need Ukuu for. It is perfectly up to date
Oh thank you! That tells me what I need to do :) I'll call this solved