git: dumpon(8): Make error messages clearer

Aaron LI aly at
Sat Sep 22 21:35:58 PDT 2018

commit bfbb599bba9fbf988628bb6dd678cd03d68dfda5
Author: Aaron LI <aly at>
Date:   Sun Sep 23 12:26:33 2018 +0800

    dumpon(8): Make error messages clearer
    Before this patch, when a dump device is already configured, dumpon(8)
    only complains with 'Device busy', which isn't helpful.  Now, dumpon(8)
    will tell whether the dump device is already configured or whether need
    to run 'dumpoff' first.
    Always show verbose information.  The utility still accepts the '-v'
    option for backward compatibility, but don't mention the option in the
    man page anymore.

Summary of changes:
 sbin/dumpon/dumpon.8 | 22 ++++++++++---------
 sbin/dumpon/dumpon.c | 60 +++++++++++++++++++++++++++++++++++++++-------------
 2 files changed, 57 insertions(+), 25 deletions(-)

DragonFly BSD source repository

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