Description of problem: Version-Release number of selected component (if applicable): How reproducible: Install Fedora 18 RC 1 from DVD. On reboot, the grub menu does not show all other distributions. Steps to Reproduce: 1. 2. 3. Actual results: Fedora 17 missing from the grub.cfg. Expected results: Expected F17 to be includedé Additional info: Logged into root and reran the grub2-mkconfig > /tmp/grub.cfg. Verified that the /tmp/grub.cfg included the missing distributions. Replaced /boot/grub.cfg and rebooted. Note. For full inclusion with multi=boot, all alternate partitions should be mounted.
Please show the output from os-prober. If possible then please also try it from the install dvd. The problem is most likely caused by lvm/dm not being initialized correctly when running from the install dvd.
Please specify where the undetected distributions are located (partition type/file system type). I can think of two reasons for not detecting other OSes during installation: 1. OSes on file systems not supported in Anaconda 2. OSes on LVM partitions due to bug #825236 (in this case your bug will be duplicate of that bug).
Created attachment 653982 [details] The original grub.cfg created by Fedora 18 Rc1 with btfrs as default file system
Created attachment 653983 [details] The grub.cfg after Fedora 18 RC1 was installed. This grub.cfg was created after I mounted the unmounted partitions. I used grub2-mkconfig The file system is btfrs, the system is dual core 32bit (I can redo to 64bit if you need a 64bit version. The Intel dual core system has 3.5gig of ddr2. Anything else such as > *os-prober > /dev/sdb6:Ubuntu 12.04.1 LTS (12.04):Ubuntu:linux > /dev/mapper/vg_lesliedesktop-lv_root:Fedora release 17 (Beefy > Miracle):Fedora:linux > * Can be provided.
Yeah, I'm quite sure that is bug #825236. To confirm that please boot up on the install media and run 'os-prober' manually, perhaps on a ctrl+alt+Fsomething terminal.
*** This bug has been marked as a duplicate of bug 825236 ***