Bug#792540: Wifi netinstall fails with flashing screen on Lenovo X220

["W. Martin Borgert" <debacle@debian.org>]

On 2015-07-15 23:47, Steve McIntyre wrote:
> regularly on various X220 machines for *ages* and never seen this. Is
> there anything special at all about your SD card? Is the machine
> locked, or can you get to logs?

I'm so much used to a perfectly working d-i, that I didn't even
remember the 4th console :~)

It says more or less:

Jul 16 19:28:10 kernel: [  110.811848] main-menu[9666]: segfault at 1 ip 00007f16b6dccd8 sp 00007f
fe7cd124e8 error 4 in libc-2.19.so[7f1202d825000+19f000]

The SD card had - according to GParted a small unallocated area
first, and then an almost 4 GB fat32 partition. I changed this
to one partition and the problem is gone!

Thanks for the hint with the SD card - it was the real culprit.