Hi,
I went to Rpi4, since 32 bits is have no support anymore.
Everything went fine even if I had some problem with compose (I was on a portainer on rpi2). I was able to retrieve my transmssion files and almots my plex 
I followed guides from omvextras (thanks again for your job !)
Here is one problem
sudo cat /etc/shadow | grep '^[^:]*:[^\*!]'I'm stucked with users in OMv and permission on my SD Card (the data are on an external hard drive)
it seems that I have 3 users for ssh : mynickname, admin (does not show up in omv, i's the webgui one ) and appuser (the one for the docker compose part).
I can't open config.xml (it's a root owner), and can't use su on mynickname ssh. (I ghave the root enable on ssh in OMV)
Same on some files on my harddrive created by the docker parts.
ssh_config
This file is auto-generated by openmediavault (https://www.openmediavault.org)
# WARNING: Do not edit this file, your changes will get lost.
Protocol 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
SyslogFacility AUTH
LogLevel INFO
LoginGraceTime 120
StrictModes yes
IgnoreRhosts yes
HostbasedAuthentication no
PermitEmptyPasswords no
ChallengeResponseAuthentication no
X11Forwarding yes
X11DisplayOffset 10
PrintMotd no
PrintLastLog yes
TCPKeepAlive yes
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server
UsePAM yes
AllowGroups root _ssh
AddressFamily any
Port 22
PermitRootLogin yes
AllowTcpForwarding no
Compression no
PasswordAuthentication yes
AuthorizedKeysFile .ssh/authorized_keys .ssh/authorized_keys2 /var/lib/openmediavault/ssh/authorized_keys/%u
PubkeyAuthentication yesThanks !
Edit : here some authentication logs
16/12/2024 15:29:53
su[329398]: FAILED SU (to root) mynickname on pts/0
16/12/2024 15:29:51
su[329398]: pam_unix(su:auth): authentication failure; logname=mynickname uid=1000 euid=0 tty=/dev/pts/0 ruser=mynickname rhost= user=root
16/12/2024 15:24:33
sudo[327922]: pam_unix(sudo:session): session closed for user root
16/12/2024 15:24:33
sudo[327922]: pam_unix(sudo:session): session opened for user root(uid=0) by mynickname(uid=1000)
16/12/2024 15:24:33
sudo[327922]: mynickname : TTY=pts/0 ; PWD=/home/mynickname ; USER=root ; COMMAND=/usr/bin/cat /etc/shadow
16/12/2024 15:24:29
sshd[327837]: pam_env(sshd:session): deprecated reading of user environment enabled
16/12/2024 15:24:28
(systemd)[327864]: pam_unix(systemd-user:session): session opened for user mynickname(uid=1000) by (uid=0)
16/12/2024 15:24:28
systemd-logind[674]: New session 135 of user mynickname.
16/12/2024 15:24:28
sshd[327837]: pam_unix(sshd:session): session opened for user mynickname(uid=1000) by (uid=0)
16/12/2024 15:24:28
sshd[327837]: Accepted password for mynickname from 192.168.1.54 port 46468 ssh2