[ipxe-devel] serial arrow keys broken

Michael Brown mcb30 at ipxe.org
Wed Apr 23 00:40:02 BST 2014


On 23/04/14 00:13, Peter Pickford wrote:
> This is what I get on kvm with serial console
>
> http://pastie.org/9101958
>
> <snip>
>
> vm has no video drivers and uses controller virtio  serial and serial 1
> as primary console
>
> ipxe is loaded via gpxe from tftp ipxe.pxe
>
> as you can see double chars

You have serial console output enabled in the BIOS.  Your serial port 
output includes lines such as

   Booting from Hard Disk...
   Boot failed: not a bootable disk

which are definitely coming from the BIOS, rather than from iPXE.  When 
iPXE starts up, each character gets written twice: once from the BIOS's 
console output and once from iPXE's own serial output.

Since you have serial console output enabled in the BIOS anyway, you 
could just disable iPXE's serial console support and you would still see 
output on the serial port.

Michael


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