URL:
<http://savannah.gnu.org/bugs/?43653>
Summary: grub-probe fails to find ZFS VDEVs in /dev/mapper
Project: GNU GRUB
Submitted by: bkus
Submitted on: Fri 21 Nov 2014 01:26:54 AM GMT
Category: Disk & Partition
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:
When the root filesystem is a ZFS composed of VDEVs from /dev/mapper (eg:
/dev/mapper/cryptroot), grub-probe fails to find the underlying device(s).
This is because it calls out to zpool to find the VDEVs of rpool, but they're
listed as non-absolute names in zpool's output, and grub-probe then tries to
find the full paths in /dev, but not any sub-dir of /dev, like /dev/mapper.
A workaround is to create symlinks in /dev using the exact same device names
as listed in zpool's output. grub-probe then succeeds and things like
grub-mkconfig start working.
Please enhance grub-probe's support for ZFS by searching deeper in the /dev
tree, or find an alternate more precise way of obtaining the VDEV information
from ZFS.
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