To: ~alpine/users@lists.alpinelinux.org
From: David Demelier <markand@malikania.fr>
Subject: crontab -e discards changes
Message-ID: <0a0034b6-06dd-11ac-ec76-5d302b7ba3d8@malikania.fr>
Date: Mon, 20 Jan 2020 15:32:29 +0100
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Hello,

I've installed Alpine on my raspberry pi (but as sys mode) so / is 
mounted rw all the time.

I use crond from busybox as default, and wanted to edit the root's 
crontab. As root I ran `crontab -e` and it opened up vim with the 
default rules.

I've added a new line at the end as usual

0 6 * * * mycommand

And saved, but once I re-opened `crontab -e` the file was as original 
and my changes discarded.

There are no messages in /var/log/messages related to this trouble. 
Also, as simple user I get the error saying that crontab isn't setuid:

crontab: must be suid to work properly

So I suppose I simply need to `chmod 4755 $(which crontab)` but wanted 
to be sure I don't do something wrong :)

Regards,

-- 
David