On 02/06/2012 10:40 PM, Brian C. Lane wrote: > In Fedora 16 we changed to using GPT as the default disklabel for new > installs. In a few cases, mostly limited to Lenovo hardware, we found > that some BIOS's would not boot from GPT. We blacklisted Lenovo, falling > back to msdos labels in order to solve this. > > Thanks to Matthew Garrett we found that switching on the boot flag of > the GPT's protective MBR these BIOS's would then boot from GPT. Matthew > wrote a patch for parted to allow controlling this flag using the > disk_set pmbr_boot command in parted. This is in parted-3.0-7 > > In anaconda-17.6 I have reverted the Lenovo blacklist and changed things > so that pmbr_boot is always set on GPT labeled installs. This should > ensure that thing boot correctly. > > If this still causes problems the symptom will be that grub never starts > and the bios may complain about not being able to find an OS. If you > have problems with this please open a bug with the output from dmidecode > > You can still force usage of msdos partitions by passing nogpt on the > kernel cmdline. Hmm, I tried that workaround I think on my Lenovo T520 with BIOS 1.29, and it didn't help. I.E. point (1.) from the link referenced here: https://bugzilla.redhat.com/show_bug.cgi?id=735733#c31 Fingers crossed I just missed something at the time. I'll try out again tomorrow maybe. cheers, Pádraig. -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
