duplicate mountpoint /mnt/cryptfs in /etc/fstab

[FrankBusse]

on startup, Bullseye complains

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$ dmesg | grep cryptfs
[    7.458956] systemd-fstab-generator[450]: Failed to create unit file '/run/systemd/generator/mnt-cryptfs.mount', as it already exists. Duplicate entry in '/etc/fstab'?
[  168.243606] systemd-fstab-generator[3863]: Failed to create unit file '/run/systemd/generator/mnt-cryptfs.mount', as it already exists. Duplicate entry in '/etc/fstab'?

... and in fact, there is a duplicate entry in /etc/fstab:

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$ more /etc/fstab | grep cryptfs
/dev/kubuntu-vg/root                        /mnt/cryptfs   ext4        ro,users,noauto     0 0 
/dev/sdc2                                   /mnt/cryptfs   erweitert   ro,noauto           0 0 

However, I have noticed no further negative effect. What should I do (apart from "never change a running system")?

[arzgi]

Just edit the /etc/fstab, it is needed only at boot.

[Aki]

Hello @FrankBusse,

I assume you have resolved it.

Please, mark the discussion as "solved" manually adding the text tag "[Solved]" at the beginning of the subject of the first message (after other tags, if any).

Thanks.

[FrankBusse]

Thanks @arzgi, for your quick response - and sorry for the delay

Just edit the /etc/fstab, it is needed only at boot.

To avoid misunderstanding:
Which of the two entries for /mnt/cryptfs should I remove?
You mention that "it" (I assume the one to preserve) "is needed at boot".