hello,
Little update. The problem I had was… It’s a qwerty and not Azerty !!! That’s why I couldn’t write my password in emergency mode…
Anyway, this is solved. I could enter the server by commenting the lines of my external drive in /etc/fstab, I’m via ssh now. I ran all the upgrade of the system today.
but still no access to my portal, I then checked and run a diagnosis. Lot of services doesn’t work, the only 2 which can’t be restarted are “nginx” and “redis-server”. It looks like it can’t write a file which should be on my external drive.
I then took the drive off, plugged in my macbook and looking what’s happend. It’s not mounting properlly, can’t see it in the finder, but find it in the disk manager, I see it’s full full, no one Byte left.
It’s a 4TB, I have /home, /var/mail & /var/log on it and the server was using 250GB before the problem.
Well, I don’t really know where to look for now.
I get a kind of line :
"ssl_stapling" ignored, no OCSP responder URL in the certificate "/etc/yunohost/certs/myURL/crt.pem
[emerg] 1183#1183: mkdir() "/home/yunohost.app/my_webdav/tmp/" failed (2: No such file or directory)
Jul 31 06:15:55 nginx[1183]: nginx: configuration file /etc/nginx/nginx.conf test failed
some help would be cool !
I find this on an other post, but the fix didn’t helped in my case :
[1] 11366
proc /proc proc defaults 0 0
PARTUUID=a811d99a-01 /boot vfat defaults 0 2
PARTUUID=a811d99a-02 / ext4 defaults,noatime 0 1
#UUID="b1cfe83c-16d4-4508-80c5-0a302b376e7b" /mnt/hdd ext4 defaults,nofail 0 0
#/mnt/hdd/home/ /home/ none defaults,bind 0 0
#/mnt/hdd/var/mail /var/mail none defaults,bind 0 0
#/mnt/hdd/var/log /var/log none defaults,bind 0 0
root@florentcurk:/# total 96984
150339 drwxr-xr-x 9 root root 4096 Jul 31 06:15 .
29 drwxr-xr-x 13 root root 4096 May 14 08:43 ..
168371 -rw-r--r-- 1 root root 4062 Jul 31 06:16 alternatives.log
367160 drwxr-xr-x 2 root root 4096 Jul 30 19:45 apt
168367 -rw-r----- 1 root adm 2572496 Jul 31 06:54 auth.log
141468 -rw-r----- 1 root adm 1232 Jul 6 17:19 auth.log.1
126059 -rw-rw---- 1 root utmp 1441600 Jul 31 06:35 btmp
149590 -rw-r----- 1 root adm 190630 Jul 31 06:54 cron.log
168369 -rw-r----- 1 root adm 133984 Jul 30 23:59 cron.log.1
168403 -rw-r--r-- 1 root root 74873 Jul 30 20:03 dpkg.log
149544 -rw------- 1 root root 1900 Jul 31 06:16 fail2ban.log
168366 -rw-r----- 1 root adm 55480 Jul 31 06:17 kern.log
141466 -rw-r----- 1 root adm 50920 Jul 30 19:28 kern.log.1
126060 -rw-rw-r-- 1 root utmp 11021856 Jul 31 06:17 lastlog
168365 -rw-r----- 1 root adm 22905073 Jul 31 06:54 mail.log
141471 -rw-r----- 1 root adm 94 Jul 30 19:28 mail.log.1
367151 drwxr-xr-x 3 root root 4096 Jul 31 05:11 nginx
168372 -rw------- 1 root root 10876 Jul 31 06:16 openvpn-client.log
168373 -rw------- 1 root root 186 Jul 31 06:54 openvpn-client.status
149589 -rw------- 1 root root 535 Jul 31 06:23 php8.3-fpm.log
168370 -rw------- 1 root root 751 Jul 30 20:03 php8.3-fpm.log.1
245048 drwxrwxr-t 2 root postgres 4096 Jul 30 19:28 postgresql
245049 drwx------ 2 root root 4096 Jul 6 15:17 private
126057 lrwxrwxrwx 1 root root 39 Jul 6 15:17 README -> ../../usr/share/doc/systemd/README.logs
547205 drwxr-x--- 2 root adm 4096 Jul 11 09:21 samba
168364 -rw-r----- 1 root adm 71594389 Jul 31 06:54 syslog
141465 -rw-r----- 1 root adm 133426 Jul 30 19:28 syslog.1
367140 drwxr-xr-x 2 root root 4096 Jul 30 19:39 unattended-upgrades
168368 -rw-r----- 1 root adm 2173 Jul 31 06:25 user.log
141467 -rw-r----- 1 root adm 1033 Jul 6 17:19 user.log.1
126058 -rw-rw-r-- 1 root utmp 8000 Jul 31 06:17 wtmp
141469 -rw------- 1 root root 1265 Jul 31 06:16 ynh-vpnclient.log
367139 drwxr-x--- 3 root root 4096 Jul 31 00:00 yunohost
Ideas ? 
Thank you all !