Date: Sat, 20 Feb 2021 11:48:04 +0000 From: Graham Perrin <grahamperrin@gmail.com> To: Chris Rees <crees@bayofrum.net> Cc: freebsd-current@freebsd.org Subject: (232921) somewhat random pw-related errors following system upgrades (was: freebsd-update(8) without an echo of "You must be root to run this.") Message-ID: <c5e7e5d7-e785-100d-c681-c70de8e4e368@gmail.com> In-Reply-To: <BAA5410A-FAC7-45D1-9295-CB1CD3A47F6A@bayofrum.net> References: <1d5a4d6b-b857-d5c5-070f-8d13f4ae3deb@gmail.com> <BAA5410A-FAC7-45D1-9295-CB1CD3A47F6A@bayofrum.net>
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On 19/02/2021 21:59, Chris Rees wrote: > Hey, > > On 16 February 2021 08:53:29 GMT, Graham Perrin <grahamperrin@gmail.com> wrote: >> <https://cgit.freebsd.org/src/tree/usr.sbin/freebsd-update/freebsd-update.sh?id=48ffe56ac5b7adb5b851d32be12b2ec0f13705a4#n555>; >> >> echo "You must be root to run this." >> >> Below: is this my PEBKAM, or (with a system that is preconfigured to >> deny login as root) _should_ there be an echo of the requirement to run >> >> as root? >> >> ---- >> >> mowa219-gjp4-vm-hellosystem-eol-freebsd% su - >> Password: >> su: Sorry >> mowa219-gjp4-vm-hellosystem-eol-freebsd% sudo grep LOCKED >> /etc/master.passwd >> root:*LOCKED*:0:0::0:0:Charlie &:/root:/bin/csh >> mowa219-gjp4-vm-hellosystem-eol-freebsd% sudo freebsd-update upgrade -r > Sudo means that you are root. *LOCKED* just disables the root password. > > Chris Thanks for the clarification. ---- As background: I spent many hours repeatedly testing freebsd-update upgrade from 12.1-RELEASE to 12.2-RELEASE-p3 (and greater) in virtual machines, trying to understand why (a bug) mysql57-server would not install following an upgrade with the root password _disabled_. Later tests included multiple consecutive successes (bug-free) with the root password _enabled_ – enough consecutive successes for me to assume that the bug was somehow caused by the *LOCKED* aspect. That period of consistent success was followed by reproduction of the bug with the root password _enabled_, at which point I realised the wrongness of my assumption. Confused by the randomness, I began to wonder whether – in rare situations – sudo might be not entirely effective. Eventually I realised, the failures to install mysql57-server were symptomatic of FreeBSD bug 232921 <https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=232921>, which involves pwd_mkdb(8). I'll not attempt to understand why bug 232921 was not consistently reproducible during my tests, but I'm glad that it's unrelated to disabling the root password; and I no longer doubt the usefulness of sudo :-)
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