Solved Cannot mount in the installer's shell

[aragats]

I tried using FreeBSD 15.1 installer to fix some stuff in the root filesystem.
However, I get:

# mount /dev/ada1s2a /mnt/
mount: /dev/ada1s2a: Operation not permitted

It's formatted as UFS, I ran fsck on it, no errors found.

Thanks for advises!

 

[balanga]

How about booting from a USB stick to examine the system?

 

[aragats]

That's what I did: I used USB stick to boot and selected "shell".
I can mount that partition in Linux in read-only mode.

 

[Phishfry]

Have you looked at disabling labels on the disk in loader.conf.

kern.geom.label.ufs.enable=0
kern.geom.label.ufsid.enable=0
kern.geom.label.gptid.enable=0
kern.geom.label.gpt.enable=0
kern.geom.label.disk_ident.enable="0"

I bet you cannot mount it because it has a label or is mounted at label name. Checkout your fstab.

 

[aragats]

My bad: ada0 and ada1 where swapped, and I was trying to mount the read-only USB stick partition. In fact, I was able to mount it with explicit -o ro, and realized that's I'm doing a wrong thing.
This a Linode VPS, and "installer" and "production" configurations map disks differently.