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The installation of Fedora 17 on my new desktop system hanged in the grub install. It turns out that the os-prober part of grub2-mkconfig hangs for some reason. $ ps aux|grep grub root 5207 0.0 0.0 112180 1620 pts/0 S+ 00:10 0:00 /bin/sh /sbin/grub2-mkconfig root 5458 0.0 0.0 112052 1516 pts/0 S+ 00:10 0:00 /bin/sh /etc/grub.d/30_os-prober root 5470 0.0 0.0 112052 656 pts/0 S+ 00:10 0:00 /bin/sh /etc/grub.d/30_os-prober During the install the prober had worked for 10+ minutes, and nothing had happened. My partitioning is Disk /dev/sda: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x25afb2d5 Device Boot Start End Blocks Id System /dev/sda1 * 2048 718847 358400 7 HPFS/NTFS/exFAT /dev/sda2 718848 1023999999 511640576 7 HPFS/NTFS/exFAT /dev/sda3 1024000000 1025023999 512000 83 Linux /dev/sda4 1025024000 3907028991 1441002496 5 Extended /dev/sda5 1025028096 2663428095 819200000 83 Linux /dev/sda6 2663430144 2790242303 63406080 83 Linux /dev/sda7 2790244352 2790309887 32768 82 Linux swap / Solaris and partitions 1 and 2 contain a Windows 7 installation (for playing Civilization V). $ rpm -q grub2 grub2-1.99-19.fc17.x86_64
Well, this is fixed in grub2-2.0-0.24.beta4.fc17.x86_64.
FWIW, I'm sure that it was something else than grub2 than fixed it: https://bugzilla.redhat.com/show_bug.cgi?id=812914 https://bugzilla.redhat.com/show_bug.cgi?id=812798