[bug #52746] An extra trailing slash is added to ZFS root pool and it's not bootable

[Jozsef Fejes]

URL:
  <http://savannah.gnu.org/bugs/?52746>

                 Summary: An extra trailing slash is added to ZFS root pool
and it's not bootable
                 Project: GNU GRUB
            Submitted by: fejesjoco
            Submitted on: Tue 26 Dec 2017 09:21:40 PM UTC
                Category: Configuration
                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
         Reproducibility: Every Time
         Planned Release: None

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Details:

I have a ZFS pool named "rpool". There are no datasets under it, the pool
itself is a normal dataset.

I'm running Debian Buster and it's update-grub script. It calls
/etc/grub.d/10_linux which produces the root parameter.

I end up with this: root=ZFS=rpool/

This prevents the system from booting with the following message: cannot open
'rpool/': trailing slash in name

When I hand-edit the generated /boot/grub/grub.cfg, and remove the trailing
slash, the system boots normally.

There are several issues like this already reported for zfsonlinux, but I
believe the file producing this error is part of grub, hence I'm reporting it
here. Eg:
https://github.com/zfsonlinux/grub/issues/15
https://github.com/zfsonlinux/grub/issues/25

If you can confirm you can own this bug, I'll hop over to github to tell them
to follow this instead.




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