Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > When it happens, I can do a rebuild, and the build will say > > X.509 certificate list changed > > which is kind of odd, since the list should *always* be just that > single key for me (ie "./signing_key.509"). Did you by any chance set aside a build tree that went wrong? If so, could you have a look to see what's in: <builddir>/kernel/.x509.list <builddir>/kernel/x509_certificate_list (note this is binary) <builddir>/x509.genkey and make sure that: <builddir>/signing_key.priv <builddir>/signing_key.x509 both exist. I wonder if the problem might perhaps be due to one of signing_key.priv or signing_key.x509 getting removed somehow - but not both. Make seems a bit weird on targets that produce two files, one of which isn't depended on (it might remove it under some circumstances, I think). Btw, do you use O=<builddir> when you're building? That causes a certain amount of pain to get right because: (1) the auto-generated keys have to be placed into the build dir, not the source dir; (2) we still need to scrape extra X.509 certs from the source dir; and (3) we don't want to see the autogenerated X.509 certificate twice if the build dir is the same as the source dir. Actually, we could simplify the makefile a bit and waive (3) if we weeded out duplicate X.509 certs by X.509 parameter value rather than by filename before adding them into the kernel. > (Side note: the HHGTTG references are cute, but I suspect we should > rename the key so that it just says something boring like "build-time > autogenerated kernel key" instead. Just so that the error messages are > a bit more readable to people who aren't kernel engineers) Awww... My main point was to try and encourage distributions to supply an x509.genkey with fields filled in with appropriate info. I guess that's probably achieved by now, so I could make it something else. It has to be specified by an X.400/X.500 DN, though, so maybe: @echo >>x509.genkey "O = Your company name" @echo >>x509.genkey "CN = Build time autogenerated kernel key" @echo >>x509.genkey "emailAddress = you@your.company" I would really like to leave O, CN and emailAddress in here because these are the fields that x509_fabricate_name() uses in the kernel. David -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html