On 17/05/16 14:21, Vlad Orlov wrote: > Hi, > > This doesn't happen even in VirtualBox working on a host with an old Core 2 > Duo > (both host and guest Debian installations are 64-bit). The upgrade went fine.
This is because your CPU architecture is not 32 bit, and not i586 or lower. I'm sure if you set that by hand, you will be able to reproduce that.
