On Tue, Feb 3, 2015 at 5:54 PM, Dan Mossor <danofsatx@xxxxxxxxx> wrote: > On 02/03/2015 06:13 PM, Adam Williamson wrote: >> >> On Tue, 2015-02-03 at 18:27 -0500, Joerg Lechner wrote: >>> >>> Hi, >>> silly question: >>> I would like to test now F22-Rawhide i.e. LXDE. My system ist a fast >>> laptop with Win 8.1 and Fedora on an external disk. I don't want to >>> test in a sandbox. >>> Is in this stage of development of F22-Rawhide danger that Fedora >>> could damage the windows installation? F22-Rawhide will be on a >>> seperate spare external disk connected via USB to the Windows laptop. >>> Kind Regards >> >> >> Nothing's 100% guaranteed, but if you don't select the internal drive >> as a target disk during installation, it's very unlikely that >> installing F22 to the external drive will affect your existing Windows >> install in any way. >> > However, Fedora has been known to modify UEFI boot settings in such a way > that the system will not boot at all without that external drive attached. > [1] > > > 1- https://fedoraproject.org/wiki/User:Dmossor/uefi-recovery Oops. This is a problem. What you describe could be a firmware bug. Thing is, the BootOrder is reported identically before and after anaconda ran efibootmgr. Possibly something is getting corrupted behind the scenes. There's a problem with the advice to run grub2-install, however. This obliterates the signed grubx64.efi that's installed by the grub2-efi package. The grubx64.efi binary that pops out of grub2-install isn't signed, so it can't boot a UEFI Secure Boot system until, at minimum, a hash for it is registered via mokmanager. There's no reason to do this unless you're e.g. experimenting with upstream GRUB and secure boot, or you just don't want to have to disable secure boot in between booting Fedora and Windows 8. gru2-install also writes an entry in NVRAM, and this additional write might be kicking the firmware in the pants and getting it to cooperate. Anyway, this kinda needs more testing and refinement. In the meantime I suggest modifying the advice so that people are aware that as written, Fedora will not boot with secure boot enabled. If grub2-efi package is reinstalled again, however, this would restore the Fedora signed grubx64.efi. -- Chris Murphy -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
