Tiny Core Linux
General TC => General TC Talk => Topic started by: PDP-8 on March 15, 2018, 05:03:24 AM
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One for you kernel hackers ...
I've been investigating the use of booting TC with a few different kernel boot parameters (to avoid manufacturer botched bios patch bugs) such as
acpi_osi=
and
acpi_osi=Linux
and seeing if they are accepted or rejected when also using the syslog parameter and taking a peek at /var/log/messages after boot.
At first I used syslog by itself with no other parameters on a stock TC, and found this when I grepped Linux from /var/log/messages:
<snip>
Mar 15 08:25:01 box user.notice.kernel: ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored <snip>
Does this mean that the acpi_osi=Linux parameter is *already* hardcoded into the TC kernel and is getting ignored/munged somehow, or is this normal for a stock install?
Note that when I DO pass the kernel parameter manually at boot time, acpi_osi=Linux by myself
I get this out of /var/log/messages:
Mar 15 08:16:31 box user.info.kernel: ACPI: Added _OSI(Linux)
Mar 15 08:16:31 box user.notice.kernel: ACPI: [Firmware Bug]: BIOS _OSI(Linux) query honored via cmdline
Just wondering if I caught something, or if I'm just observing normal behaviour in the stock TC boot.
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The TC kernel does not differ from upstream on those parameters.
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Ok, thanks for making me dig :)
Right - not a TC thing, but a general kernel thing. That default kernel response to the bios is actually the smartest response for various reasons, as is in conversation:
Kernel: "Don't probe me bro, you just keep thinking you are talking to a windows whatever box, and we'll take it from there..thanks."
TC makes me learn something every day...