This shows you the differences between two versions of the page.

err:1c25e0 [2013/05/04 18:55] Autocreated
err:1c25e0 [2016/07/10 20:51] (current)
Line 1: Line 1:
 +This error indicates that the cryptographic random bit generator could not be initialised.  This usually indicates that there is no good source of entropy available.
 +There is a known bug in the Microsoft Hyper-V hypervisor (as used for Microsoft Azure virtual machines), in which the emulated CMOS RTC hardware seems to be incapable of generating an interrupt.  This breaks the entropy generation mechanism used by iPXE, and will result in this error.  There are some indications that this problem affects only AMD hardware, though this has not been proved conclusively.  If you are using Microsoft Azure, then you may be able to work around the problem by using a larger instance (which is more likely to use an Intel CPU).
err/1c25e0.txt · Last modified: 2016/07/10 20:51 by mcb30
Recent changes RSS feed Donate Powered by PHP Valid XHTML 1.0 Valid CSS Driven by DokuWiki
All uses of this content must include an attribution to the iPXE project and the URL http://ipxe.org
References to "iPXE" may not be altered or removed.