Renaming a zvol with partition(s) does not move/rename the ”-partX” entries in /dev/zvol.

[cumafo]

spl & zfs: 0.6.5.4-1~trusty

[loli10K]

Sometimes udev needs a little push in the right direction:

[root@centos ~]# POOLNAME="testpool"
[root@centos ~]# TMPDIR='/var/tmp'
[root@centos ~]# #
[root@centos ~]# mountpoint -q $TMPDIR || mount -t tmpfs tmpfs $TMPDIR
[root@centos ~]# zpool destroy $POOLNAME
[root@centos ~]# rm -f $TMPDIR/zpool.dat
[root@centos ~]# fallocate -l 128m $TMPDIR/zpool.dat
[root@centos ~]# zpool create $POOLNAME $TMPDIR/zpool.dat
[root@centos ~]# #
[root@centos ~]# zfs create -V 64M -s $POOLNAME/zvol
[root@centos ~]# udevadm trigger
[root@centos ~]# udevadm settle
[root@centos ~]# parted /dev/zvol/$POOLNAME/zvol -s -- mklabel gpt
[root@centos ~]# parted /dev/zvol/$POOLNAME/zvol -s -- mkpart part0 1cyl 1cyl
[root@centos ~]# udevadm trigger
[root@centos ~]# udevadm settle
[root@centos ~]# #
[root@centos ~]# ls -l /dev/zvol/$POOLNAME/
total 0
lrwxrwxrwx. 1 root root  9 Aug 17 14:05 zvol -> ../../zd0
lrwxrwxrwx. 1 root root 11 Aug 17 14:05 zvol-part1 -> ../../zd0p1
[root@centos ~]# #
[root@centos ~]# zfs rename $POOLNAME/zvol $POOLNAME/new
[root@centos ~]# #
[root@centos ~]# ls -l /dev/zvol/$POOLNAME/
total 0
lrwxrwxrwx. 1 root root  9 Aug 17 14:06 new -> ../../zd0
lrwxrwxrwx. 1 root root 11 Aug 17 14:05 zvol-part1 -> ../../zd0p1
[root@centos ~]# #
[root@centos ~]# udevadm trigger
[root@centos ~]# udevadm settle
[root@centos ~]# ls -l /dev/zvol/$POOLNAME/
total 0
lrwxrwxrwx. 1 root root  9 Aug 17 14:06 new -> ../../zd0
lrwxrwxrwx. 1 root root 11 Aug 17 14:06 new-part1 -> ../../zd0p1
[root@centos ~]# 

I don't know if there's anything we can do in zfs via libudev, leaving this open in case someone wants to work on this.

[stale]

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