Это то же самое, что Ubuntu 14.04 не подключается к серверу NFS v4 ?

Не удается подключить меня из Ubuntu 14.04 к NFS Ubuntu 18.04. Более новые версии ОС работают безупречно.

Сервер (Ubuntu 18.04)

sudo apt update && sudo apt install nfs-kernel-server

/ etc / exports

# ...
/opt/lala         *(crossmnt,rw,no_root_squash,sync,no_subtree_check)
# ...

sudo reboot

Клиент (Ubuntu 14.04)

sudo apt update && sudo apt install autofs

/etc/auto.master

# ...
lala      -rw     10.0.0.1:/opt/lala/
# ...

/ etc / default / autofs

# ...
APPEND_OPTIONS="--debug"
# ...

sudo service autofs restart
bash -c 'sleep 10; cd /mnt/lala' &
sudo tail -F /var/log/syslog

Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: gssd_refresh_krb5_machine_credential: no usable keytab entry found in keytab /etc/krb5.keytab for connection with host 10.0.0.1
Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: No credentials found for connection to server 10.0.0.1
Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: gssd_refresh_krb5_machine_credential: no usable keytab entry found in keytab /etc/krb5.keytab for connection with host 10.0.0.1
Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: No credentials found for connection to server 10.0.0.1
Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: gssd_refresh_krb5_machine_credential: no usable keytab entry found in keytab /etc/krb5.keytab for connection with host 10.0.0.1
Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: No credentials found for connection to server 10.0.0.1
Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: gssd_refresh_krb5_machine_credential: no usable keytab entry found in keytab /etc/krb5.keytab for connection with host 10.0.0.1
Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: No credentials found for connection to server 10.0.0.1
Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: gssd_refresh_krb5_machine_credential: no usable keytab entry found in keytab /etc/krb5.keytab for connection with host 10.0.0.1
Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: No credentials found for connection to server 10.0.0.1
Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: gssd_refresh_krb5_machine_credential: no usable keytab entry found in keytab /etc/krb5.keytab for connection with host 10.0.0.1
Dec 30 12:38:25 lolserver rpc.gssd[890]: ERROR: No credentials found for connection to server 10.0.0.1
bash: line 0: cd: /mnt/lala: No such file or directory

Я знаю, что Ubuntu 14.04 на самом деле больше не поддерживается, но есть ESM.

Мой вопрос: как мне как можно проще вернуть Ubuntu 14.04 в мою NFS без необходимости экспериментировать непосредственно в / etc / fstab?