1. with /var/lib/dpkg/lock locked:
dpkg: error: dpkg status database is locked by another process
2. with lock-frontend locked (not yet recognized):
dpkg: error: --install needs at least one package archive file argument
3. same as 2
after upgrade to 1.18.4ubuntu1.5:
1.
root@xxx:~# dpkg -i /var/cache/apt/archives/dpkg_1.18.4ubuntu1.5_amd64.deb
dpkg: error: dpkg status database is locked by another process
2.
root@xxx:~# dpkg -i /var/cache/apt/archives/dpkg_1.18.4ubuntu1.5_amd64.deb
dpkg: error: dpkg frontend is locked by another process
3.
root@xxx:~# DPKG_FRONTEND_LOCKED=1 dpkg -i /var/cache/apt/archives/dpkg_1.18.4ubuntu1.5_amd64.deb
(Reading database ... 25800 files and directories currently installed.)
Preparing to unpack .../dpkg_1.18.4ubuntu1.5_amd64.deb ...
Unpacking dpkg (1.18.4ubuntu1.5) over (1.18.4ubuntu1.5) ...
Setting up dpkg (1.18.4ubuntu1.5) ...
Processing triggers for man-db (2.7.5-1) ...
Before:
1. with /var/lib/dpkg/lock locked:
dpkg: error: dpkg status database is locked by another process
2. with lock-frontend locked (not yet recognized):
dpkg: error: --install needs at least one package archive file argument
3. same as 2
after upgrade to 1.18.4ubuntu1.5:
1. apt/archives/ dpkg_1. 18.4ubuntu1. 5_amd64. deb
root@xxx:~# dpkg -i /var/cache/
dpkg: error: dpkg status database is locked by another process
2. apt/archives/ dpkg_1. 18.4ubuntu1. 5_amd64. deb
root@xxx:~# dpkg -i /var/cache/
dpkg: error: dpkg frontend is locked by another process
3. LOCKED= 1 dpkg -i /var/cache/ apt/archives/ dpkg_1. 18.4ubuntu1. 5_amd64. deb 1.18.4ubuntu1. 5_amd64. deb ...
root@xxx:~# DPKG_FRONTEND_
(Reading database ... 25800 files and directories currently installed.)
Preparing to unpack .../dpkg_
Unpacking dpkg (1.18.4ubuntu1.5) over (1.18.4ubuntu1.5) ...
Setting up dpkg (1.18.4ubuntu1.5) ...
Processing triggers for man-db (2.7.5-1) ...
=> Verified.