bin/56631: rdump fails to back up to remote file

[greywolf%starwolf.com@localhost]

>Number:         56631
>Category:       bin
>Synopsis:       rdump fails to back up to file on remote host
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jan 16 03:25:00 +0000 2022
>Originator:     Greywolf
>Release:        NetBSD 9.99.93
>Organization:
Meh.
>Environment:
System: NetBSD valentina.serenity.starwolf.com 9.99.93 NetBSD 9.99.93 (VALENTINA) #11: Thu Jan 13 11:45:10 PST 2022 greywolf%valentina.serenity.starwolf.com@localhost:/usr/src/sys/arch/amd64/compile/VALENTINA amd64
Architecture: x86_64
Machine: amd64
>Description:
# rdump 0uaf dumphost:/backupdir/_root.0 /
  DUMP: Found /dev/rld0a on / in /etc/fstab
  DUMP: Date of this level 0 dump: Sat Jan 15 18:49:08 2022
  DUMP: Date of last level 0 dump: the epoch
  DUMP: Dumping /dev/rld0a (/) to /backupdir/_root.0 on host dumphost
  DUMP: Label: none
  DUMP: mapping (Pass I) [regular files]
  DUMP: mapping (Pass II) [directories]
  DUMP: estimated 341149 tape blocks.
rdump: Lost connection to remote host.

# export | grep RCMD_CMD
RCMD_CMD
# echo "<${RCMD_CMD}>"
</usr/bin/ssh>
#

>How-To-Repeat:
	rdump 0uaf remote:/path /filesystem
>Fix: