[bug #41301] Cannot boot a btrfs root partition with autogenerated grub.cfg

[John Audia]

URL:
  <http://savannah.gnu.org/bugs/?41301>

                 Summary: Cannot boot a btrfs root partition with
autogenerated grub.cfg
                 Project: GNU GRUB
            Submitted by: graysky
            Submitted on: Wed 22 Jan 2014 11:59:33 AM GMT
                Category: Booting
                Severity: Major
                Priority: 5 - Normal
              Item Group: Software Error
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: 2.02~beta1
         Reproducibility: Every Time
         Planned Release: None

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Details:

Using the autogenerated grub.cfg renders the system unable to boot to a btrfs
root partition. Downgrading to version 2.00.1282.g5ae5c54 and regenerating
grub.cfg restores the functionality.  Both the non-functional and the
functional grub.cfg is attached for comparison.

The message displayed when attempting to boot to the autogenerated entry:

"ERROR: Boot device mounted successfully but /sbin/init does not exist.
Bailling out, you are on your own. Good luck.

sh: can't access tty: job control turned off
[rootfs /]#"

I have also opened a task in the Arch Linux bug tracker, but wanted to give
upstream a chance to see this as well (hence this ticket).

Link to Arch bug report: https://bugs.archlinux.org/task/38566

Steps to reproduce:
1) Install package on an EFI system that uses a btrfs root partition (I cannot
try on an non-EFI system as I do not own one).
2) Mount /boot/efi to $esp.
3) grub-install --target=x86_64-efi --efi-directory=/boot/efi
--bootloader-id=grub --recheck
4) chmod -x /etc/grub.d/10_linux ### this is known to produce bogus entries on
Arch Linux, see flyspray #38455, https://bugs.archlinux.org/task/38455
5) grub-mkconfig -o /boot/grub/grub.cfg
6) Reboot and try to boot the system

My system is an EFI motherboard running Arch Linux x86_64 using all distro
provided packages.





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File Attachments:


-------------------------------------------------------
Date: Wed 22 Jan 2014 11:59:33 AM GMT  Name: grub.cfg-1-2.02.beta2-1  Size:
7kB   By: graysky

<http://savannah.gnu.org/bugs/download.php?file_id=30338>
-------------------------------------------------------
Date: Wed 22 Jan 2014 11:59:33 AM GMT  Name: grub.cfg-1-2.00.1282.g5ae5c54-1 
Size: 6kB   By: graysky

<http://savannah.gnu.org/bugs/download.php?file_id=30339>

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