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dracut shell after grub fixing

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After booting Windows in Recovery Mode, my bootloader disappeared. I tried a lot to finally fix it "somehow", here's how - I booted to Fedora 17 Live and in terminal:
Code:

su
install -d /mnt/image
mount /dev/sda5 /mnt/image
grub2-install --root-directory=/mnt/image /dev/sda
mv /boot /xboot
ln -s /mnt/image/boot /
grub2-mkconfig -o /boot/grub2/grub.cfg

The output of the last command was not completely ok:
Code:

Generating grub.cfg ...
/usr/share/grub/grub-mkconfig_lib: line 53:  2857 Segmentation fault    (core dumped) "${grub_probe}" -t fs "$path" > /dev/null 2>&1
/usr/share/grub/grub-mkconfig_lib: line 53:  2859 Segmentation fault    (core dumped) "${grub_probe}" -t fs "$path" > /dev/null 2>&1
/usr/share/grub/grub-mkconfig_lib: line 53:  2861 Segmentation fault    (core dumped) "${grub_probe}" -t fs "$path" > /dev/null 2>&1
/usr/share/grub/grub-mkconfig_lib: line 53:  2863 Segmentation fault    (core dumped) "${grub_probe}" -t fs "$path" > /dev/null 2>&1
Found Microsoft Windows XP Professional on /dev/sda1
Found Windows Recovery Environment (loader) on /dev/sda3
Found Fedora release 17 (Beefy Miracle) on /dev/mapper/vg_petrhp-lv_root
done

After reboot, the bootloader was back, Win boots correctly, but Fedora boots in unordinary text mode and ends up in dracut debug shell. The last lines are:
Code:

[  36.762600] dracut Warning: Unable to process initqueue

dracut Warning: Unable to process initqueue

dracut Warning: Unable to process initqueue
[  36.773624] dracut Warning: /dev/dm-4 does not exist
dracut Warning: /dev/dm-4 does not exist

Dropping to debug shell.

dracut:/#

Any ideas how to fix it, please?

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