I installed Debian with kernel 2.6.32-5-686 on a Hyper-V virtual machine. I had to add a legacy network card. I follow this tutorial http://www.yusufozturk.info/linux-server/debian-2-6-36-kernel-upgrade-for-hyper-v-client-drivers.html to add Hyper-V driver but when I reboot with the new kernel i got this error:
BLKVSC_DRV: blkvsc_probe() ERROR!! register_blkdev() failed! ret -16
And at the very first boot log (that i can not copy because i did not find it in dmesg or boot log) i see a mount /dev error.