This patch also not help :-(
07.786: Booting from Floppy... 07.786: enter handle_13: 07.786: a=00000201 b=00000000 c=00000001 d=00000000 ds=0000 es=07c0 ss=df80 07.798: si=00000000 di=00000000 bp=00000000 sp=0000f900 cs=f000 ip=cb97 f=0202 07.798: disk_op d=0x000f54f0 lba=0 buf=0x00007c00 count=1 cmd=2 07.798: Floppy_drive_recal 0 07.798: Floppy_enable_controller 07.798: handle_0e 07.798: handle_0e 08.171: handle_0e 08.171: Floppy_media_sense on drive 0 found rate 0 08.369: handle_0e 08.369: Booting from 0000:7c00 08.369: enter handle_13: 08.369: a=00000000 b=00000000 c=00000000 d=00000000 ds=7c00 es=0000 ss=df80 08.369: si=00000000 di=00000000 bp=00000000 sp=0000f900 cs=0000 ip=7cc0 f=0202 08.369: disk_op d=0x000f54f0 lba=514 buf=0x0000f879 count=0 cmd=0 08.370: Floppy_disable_controller 08.370: Floppy_enable_controller 08.370: handle_0e 08.370: enter handle_13: 08.370: a=00000800 b=00000000 c=00000000 d=00000000 ds=7c00 es=0000 ss=df80 08.370: si=00000000 di=00000000 bp=00000000 sp=0000f900 cs=0000 ip=7cc8 f=0202 08.370: enter handle_13: 08.370: a=00000204 b=00000000 c=00000001 d=00000000 ds=7c00 es=5000 ss=df80 08.370: si=00000000 di=00005690 bp=00000000 sp=0000f900 cs=0000 ip=7cde f=0202 08.370: disk_op d=0x000f54f0 lba=0 buf=0x00050000 count=4 cmd=2 08.370: Floppy_drive_recal 0 08.386: handle_0e 08.386: handle_0e 08.386: Floppy_media_sense on drive 0 found rate 0 08.544: handle_0e 11.637: i8042_command cmd=ae 11.637: i8042_wait_write 11.637: enter handle_13: 11.637: a=00000201 b=00000000 c=00001c01 d=00000000 ds=5000 es=6000 ss=df80 11.637: si=00000000 di=00005690 bp=0000001e sp=0000f900 cs=5000 ip=0188 f=0246 11.639: disk_op d=0x000f54f0 lba=1008 buf=0x00060000 count=1 cmd=2 11.686: i8042_command cmd=ae 11.686: i8042_wait_write 11.808: handle_0e 12.282: handle_0e 12.282: enter handle_13: 12.282: a=00000201 b=00000000 c=00001c02 d=00000000 ds=5000 es=6020 ss=df80 12.282: si=00000000 di=00005690 bp=0000001e sp=0000f900 cs=5000 ip=0188 f=0246 12.283: disk_op d=0x000f54f0 lba=1009 buf=0x00060200 count=1 cmd=2 14.287: WARNING - Timeout at floppy_wait_irq:206! 14.287: Floppy_disable_controller 14.287: invalid basic_access:96: 14.287: a=00000200 b=00000000 c=00001c02 d=00000000 ds=5000 es=6020 ss=df80 14.289: si=00000000 di=00005690 bp=0000001e sp=0000f900 cs=5000 ip=0188 f=0246 14.289: handle_0e
The disk is certainly good - once I checked in another PC. Maybe this is not fault SeaBIOS only coreboot?