linux-ext4 - Remount with journal

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <afdaa035-9f02-bcb4-cde9-d9e30bf2fc54@nh2.me>
Date:   Sun, 27 May 2018 23:42:54 +0200
From:   Niklas Hambüchen <mail@....me>
To:     linux-ext4@...r.kernel.org
Subject: Remount with journal_path option in fstab

I'm using ext4 with external journal on Linux 4.9.

For being explicit I would like to set the journal_path=/dev/... option in /etc/fstab.

However when I do so, then some OS scripts fail.
This is because `systemd-remount-fs` calls `mount / -o remount`, which fails with

  EXT4-fs (md126): Cannot specify journal on remount

(How) is this supposed to work? Can `journal_path` be given in fstab?

Also, should it really fail with `Cannot specify journal on remount` even when the journal given is the one that is already being used?

Thanks for your insights!