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OpenBSD Installation and Upgrading Installing and upgrading OpenBSD. |
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Problem booting on i386
Hi,
I'm trying to get a look at OpenBSD 4.9 but it won't boot after installing. Kernel messages scroll past and then it goes black. The computer then goes into a power on/power off cycle every few seconds until I force a power off by holding down the power button. I've got a PL2303 USB serial port connected to a second PC but I can't figure out what it is called and don't know if it is recognised at boot for the set tty parameter. I've mounted the drive on a Linux box but all the files in /var/log are 0 length so it seems there is no kernel message logging on boot. Any other ideas ? thanks |
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These are tough to troubleshoot. If you can try to watch the kernel messages and catch the last message to post. Other things to try:
1) Use ukc to disable acpi ukc 2) Fiddle with the BIOS settings |
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Using ukc to disable ACPI worked, as did booting with the ramdisk kernel and chrooting. I'm now up and running. Thanks for the excellent advice.
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Unless your BIOS also happens to support APM, you should not be running with ACPI disabled for any length of time. ACPI controls your cooling; your processor may overheat. Your dmesg will tell you if APM is available, only if it does not find ACPI support or if ACPI is disabled.
(OpenBSD can use either ACPI or APM for fan management. Machines built during the ACPI transition years will have both.) |
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