Serial console not working
Lluís Vilanova
vilanova at ac.upc.edu
Tue Dec 22 19:18:09 CET 2015
Lluís Vilanova writes:
> Hi there! I'm trying to find out why my setup is not booting on a real machine
> (some Dell PowerEdge R210 node; ned says it cannot find rom/l4re), but I'm
> unable to redirect output to the serial console.
> I'm able to use the serial console for both grub and linux, so it's not a
> hardware issue. An excerpt of my grub2 configuration:
> serial --unit=1 --speed=115200 --word=8 --parity=no --stop=1
> terminal_input serial
> terminal_output serial
> # ...
> # for the linux entry
> linux /vmlinuz-3.16.0-4-amd64 root=UUID=7573ed62-a910-4b97-a577-dde47a16f87a ro console=ttyS1,115200n8 quiet
> Now, here's the entry I'm using for L4, which never gets me any output on the
> serial console:
> menuentry 'Test' {
> set root=(hd0,1)
> multiboot /l4/bootstrap -serial
> module /l4/fiasco -serial_esc -comspeed 115200 -comport 1
> module /l4/sigma0
> module /l4/moe rom/test.cfg
> module /l4/l4re
> module /l4/ned
> module /l4/test.cfg
> module /l4/bin/test
> }
For the record, I've fixed it by moving the serial console arguments to
bootstrap. There was a message on the console admonishing of the change, which I
saw when booting with QEMU.
Cheers,
Lluis
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