The following reply was made to PR bin/54467; it has been noted by GNATS.
From: "John D. Baker" <jdbaker%consolidated.net@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc:
Subject: Re: bin/54467: new tar overwrites symlinks to directories
Date: Sat, 17 Aug 2019 20:40:07 -0500 (CDT)
On Thu, 15 Aug 2019 16:25:00 +0000 (UTC), martin%NetBSD.org@localhost wrote:
> The new tar(1) is overeager in restoring directories if those already
> exist as a symlink to another directory.
> This kills updates on machines that have /usr as a symlink to someplace
> else
This also kills 'named' if one has it running chrooted. The migration
process copies "/etc/namedb/*" to "/var/chroot/named/etc/namedb/" and
replaces "/etc/namedb" with a symlink.
After an update, "/etc/namedb" is overwritten back to a directory and
the subsequent 'etcupdate' reports "root.cache", "bind.keys", etc. as
missing.