В Wed, 08 Apr 2015 16:55:35 +0200 Jelle de Jong <[email protected]> пишет:
> On 08/04/15 15:54, Andrei Borzenkov wrote: > > On Wed, Apr 8, 2015 at 3:52 PM, Jelle de Jong <[email protected]> > > wrote: > >> > >> So my question is, can I use an PCI or PCI-E serial adapter (specific > >> drivers?) to make sure the GRUB serial output is shown. > >> > > > > grub supports standard ns8250 UART; it will probe for the first 4 > > ports. As long as your PCI card is compatible and can be set to answer > > to one of first COM ports address, it has good chances to work. > > I think I use a generic pci serial adaptor, how can I figure this out? > > 37:09.0 Serial controller [0700]: Titan Electronics Inc VScom 100L 1 > port serial adaptor [14d2:8010] > > # grep tty /var/log/dmesg > [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-4-amd64 > root=UUID=705b5c0f-4274-459f-ba16-60dc64d27eac ro console=ttyS0,115200 quiet > [ 0.000000] Kernel command line: > BOOT_IMAGE=/boot/vmlinuz-3.2.0-4-amd64 > root=UUID=705b5c0f-4274-459f-ba16-60dc64d27eac ro console=ttyS0,115200 quiet > [ 0.000000] console [ttyS0] enabled > [ 2.348085] 0000:37:09.0: ttyS0 at I/O 0xe008 (irq = 21) is a 16550A > That looks good. Do you use legacy BIOS or UEFI boot? Which distribution? > http://en.wikipedia.org/wiki/16550_UART > http://en.wikipedia.org/wiki/8250_UART > > "Both the computer hardware and software interface of the 16550 are > backward compatible with the earlier 8250 UART" > > > _______________________________________________ > > Help-grub mailing list > > [email protected] > > https://lists.gnu.org/mailman/listinfo/help-grub > > _______________________________________________ > Help-grub mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/help-grub _______________________________________________ Help-grub mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-grub
