On 02/07/2012 12:54 AM, Adam Williamson wrote: > On Mon, 2012-02-06 at 23:19 +0000, Pádraig Brady wrote: >> 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. > > Yes, I remember that. Please do test the change out and let us know the > results, we'd definitely like to know. Yep as expected F17 alpha is broken in the same way on my laptop. cheers, Pádraig. _______________________________________________ Anaconda-devel-list mailing list Anaconda-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/anaconda-devel-list
