ZFS rename with associated snapshot present: odd error message

Mark Millard marklmi at yahoo.com
Tue May 4 22:59:18 UTC 2021

I had a:

# zfs list -tall
NAME                                       USED  AVAIL     REFER  MOUNTPOINT
. . .
zroot/DESTDIRs/13_0R-CA72-instwrld-norm              1.44G   117G       96K  /usr/obj/DESTDIRs/13_0R-CA72-instwrld-norm
zroot/DESTDIRs/13_0R-CA72-instwrld-norm at dirty-style  1.44G      -     1.44G  -. . .
. . .

(copied/pasted from somewhat earlier) and then attempted:

# zfs rename zroot/DESTDIRs/13_0R-CA72-instwrld-norm zroot/DESTDIRs/13_0R-CA72-instwrld-alt-0
cannot open 'zroot/DESTDIRs/13_0R-CA72-instwrld-norm at dirty-style': snapshot delimiter '@' is not expected here

Despite the "cannot open" message, the result looks like:

# zfs list -tall
NAME                                                       USED  AVAIL     REFER  MOUNTPOINT
. . .
zroot/DESTDIRs/13_0R-CA72-instwrld-alt-0                  1.44G   114G       96K  /usr/obj/DESTDIRs/13_0R-CA72-instwrld-alt-0
zroot/DESTDIRs/13_0R-CA72-instwrld-alt-0 at dirty-style      1.44G      -     1.44G  -
. . .

Still, it leaves me wondering if everything is okay
given that internal attempt to use the old name with
@dirty-style when it was apparently no longer
available under that naming.

For reference:

# uname -apKU
FreeBSD CA72_4c8G_ZFS 13.0-RELEASE FreeBSD 13.0-RELEASE #0 releng/13.0-n244733-ea31abc261ff-dirty: Thu Apr 29 21:53:20 PDT 2021     root at CA72_4c8G_ZFS:/usr/obj/BUILDs/13_0R-CA72-nodbg-clang/usr/13_0R-src/arm64.aarch64/sys/GENERIC-NODBG-CA72  arm64 aarch64 1300139 1300139

Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)

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