Ctrl key doesn't interrupt boot
Hi folks, according to boot(8) holding the Ctrl key is supposed to interrupt boot before /etc/boot.conf is read. But it doesn't. I see boot's message on VGA that it switches over to serial (as mentioned in boot.conf), and then it doesn't boot for a reason I would like to investigate. The screen stays black. I am sure that console redirection is turned off in the BIOS. OpenBSD is version 7.2. USB Keyboard. Every helpful hint is highly appreciated. Harri
Re: Ctrl key doesn't interrupt boot
On 11/14/22 06:40, Harald Dunkel wrote: Hi folks, according to boot(8) holding the Ctrl key is supposed to interrupt boot before /etc/boot.conf is read. But it doesn't. I see boot's message on VGA that it switches over to serial (as mentioned in boot.conf), and then it doesn't boot for a reason I would like to investigate. The screen stays black. I am sure that console redirection is turned off in the BIOS. OpenBSD is version 7.2. USB Keyboard. Every helpful hint is highly appreciated. Harri Wild guess, but I suspect that your BIOS isn't setting the marker that /boot uses to see the pressing of the CTRL key on your system with a USB keyboard. /boot is pretty much dependent upon your system BIOS doing The Right Thing, as the OS hasn't loaded yet. So other than looking at Other Things, I'm not sure there's an OpenBSD fix for this. Does your machine accept a PS/2 keyboard? If so, does CTRL work as expected there? Nick.
Re: Ctrl key doesn't interrupt boot
On 2022-11-14 13:54:18, Nick Holland wrote: Wild guess, but I suspect that your BIOS isn't setting the marker that /boot uses to see the pressing of the CTRL key on your system with a USB keyboard. /boot is pretty much dependent upon your system BIOS doing The Right Thing, as the OS hasn't loaded yet. So other than looking at Other Things, I'm not sure there's an OpenBSD fix for this. Do you think it would be possible to introduce a 3sec timeout to press the fabulous "any" key on pc0 to avoid that boot switches over to com0? Apparently boot can read the USB keyboard if the boot prompt is not redirected to com0. Does your machine accept a PS/2 keyboard? If so, does CTRL work as expected there? No PS/2 socket. Its an Axiomtek network appliance. Regards Harri
Re: Ctrl key doesn't interrupt boot
On 2022-11-14, Harald Dunkel wrote: > Hi folks, > > according to boot(8) holding the Ctrl key is supposed to interrupt > boot before /etc/boot.conf is read. But it doesn't. I see boot's > message on VGA that it switches over to serial (as mentioned in > boot.conf), and then it doesn't boot for a reason I would like to > investigate. The screen stays black. > > I am sure that console redirection is turned off in the BIOS. > OpenBSD is version 7.2. USB Keyboard. Timing for this is extremely touchy on some machines. You may do better if you tap it repeatedly starting from a little before the time the bios hands over to the boot loader. -- Please keep replies on the mailing list.
