bugGNU GRUB - Bugs: bug #50896, grub-probe zfs bug: failed to get...

 
 

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bug #50896: grub-probe zfs bug: failed to get canonical path

Submitted by:  Jens Elkner <jelmd>
Submitted on:  Sat 29 Apr 2017 12:11:11 AM UTC
Votes:  100  
 
Category:  Disk & Partition Severity:  Major
Priority:  5 - Normal Item Group:  Software Error
Status:  Duplicate Privacy:  Public
Assigned to:  None Originator Name: 
Open/Closed:  Closed Release: 
Release:  * 2.02~beta1 Reproducibility:  Every Time
Planned Release:  2.03+
* Mandatory Fields

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Sat 29 Apr 2017 04:59:42 AM UTC, comment #1: 
Andrei Borzenkov <arvidjaar>
Project Member
Sat 29 Apr 2017 12:11:11 AM UTC, original submission:  

grub-probe /

fails with grub-probe: error: failed to get canonical path of `/dev/HDD0p2'. This is simply because grub makes the wrong assumption, that "zpool status $pool" lists the vdevs in use only with the '/dev/' prefix stripped off. It probably assumes something like /dev/sda etc., which is discouraged to use.

Instead, grub should use "zpool status -P $pool" to get the full device path. This would probably result into a symlink, e.g. /dev/disk-by-id/$bla . If this is not sufficient, grub should use realpath() to get the final blockdev entry like /dev/sda1 .

The current setup I use is:

      433      0 drwxr-xr-x   4 root     root           80 Apr 28 20:22 /dev/chassis/SYS
      434      0 drwxr-xr-x   2 root     root          200 Apr 28 23:06 /dev/chassis/SYS/HDD0
      435      0 lrwxrwxrwx   1 root     root           12 Apr 28 23:16 /dev/chassis/SYS/HDD0/HDD0 -> ../../../sda
      417      0 lrwxrwxrwx   1 root     root           13 Apr 28 23:16 /dev/chassis/SYS/HDD0/HDD0p1 -> ../../../sda1
      442      0 lrwxrwxrwx   1 root     root           13 Apr 28 23:16 /dev/chassis/SYS/HDD0/HDD0p2 -> ../../../sda2
      423      0 lrwxrwxrwx   1 root     root           13 Apr 28 23:16 /dev/chassis/SYS/HDD0/HDD0p9 -> ../../../sda9
      436      0 lrwxrwxrwx   1 root     root           12 Apr 28 23:16 /dev/chassis/SYS/HDD0/disk -> ../../../sda
      418      0 lrwxrwxrwx   1 root     root           13 Apr 28 23:16 /dev/chassis/SYS/HDD0/p1 -> ../../../sda1
      443      0 lrwxrwxrwx   1 root     root           13 Apr 28 23:16 /dev/chassis/SYS/HDD0/p2 -> ../../../sda2
      424      0 lrwxrwxrwx   1 root     root           13 Apr 28 23:16 /dev/chassis/SYS/HDD0/p9 -> ../../../sda9
      437      0 drwxr-xr-x   2 root     root           80 Apr 28 20:22 /dev/chassis/SYS/HDD1
      438      0 lrwxrwxrwx   1 root     root           12 Apr 28 23:16 /dev/chassis/SYS/HDD1/HDD1 -> ../../../sdb
      439      0 lrwxrwxrwx   1 root     root           12 Apr 28 23:16 /dev/chassis/SYS/HDD1/disk -> ../../../sdb

with 'zpool create ... rpool /dev/chassis/SYS/HDD0/HDD0p2'

PS: The full version is 2.02~beta2-36ubuntu3.9 (Ubuntu xenial 16.04).

Jens Elkner <jelmd>

 

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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2017-04-29 arvidjaar StatusNone => Duplicate
        Open/ClosedOpen => Closed
        Planned ReleaseNone => 2.03+
    2017-04-29 jelmd Carbon-Copy- => Added jelmd

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