Ubuntu 相关命令、配置、问题

 

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查看 ubuntu 硬件信息

  1. 查看系统内核: uname -a
  2. 查看 CPU: cat /proc/cpuinfo | grep model\ name
  3. 查看内存: cat /proc/meminfo | grep MemTotal
  4. 查看硬盘: df -lh

apt-get update 碰到以下错误:

Get:1 http://repo.radeon.com/rocm/apt/debian xenial InRelease [1814 B]
Get:2 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Err:1 http://repo.radeon.com/rocm/apt/debian xenial InRelease
  Couldn't create temporary file /tmp/apt.conf.RpjjUo for passing config to apt-key
Err:2 http://security.ubuntu.com/ubuntu bionic-security InRelease
  Couldn't create temporary file /tmp/apt.conf.IvhgJr for passing config to apt-key
Get:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Err:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
  Couldn't create temporary file /tmp/apt.conf.F98B6M for passing config to apt-key
Get:5 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
Err:5 http://archive.ubuntu.com/ubuntu bionic-backports InRelease
  Couldn't create temporary file /tmp/apt.conf.WWtE1d for passing config to apt-key
Get:3 http://archive.ubuntu.com/ubuntu bionic InRelease [242 kB]
Err:3 http://archive.ubuntu.com/ubuntu bionic InRelease
  Couldn't create temporary file /tmp/apt.conf.TP8dgO for passing config to apt-key
Reading package lists... Done
W: GPG error: http://repo.radeon.com/rocm/apt/debian xenial InRelease: Couldn't create temporary file /tmp/apt.conf.RpjjUo for passing config to apt-key
E: The repository 'http://repo.radeon.com/rocm/apt/debian xenial InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://security.ubuntu.com/ubuntu bionic-security InRelease: Couldn't create temporary file /tmp/apt.conf.IvhgJr for passing config to apt-key
E: The repository 'http://security.ubuntu.com/ubuntu bionic-security InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://archive.ubuntu.com/ubuntu bionic-updates InRelease: Couldn't create temporary file /tmp/apt.conf.F98B6M for passing config to apt-key
E: The repository 'http://archive.ubuntu.com/ubuntu bionic-updates InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://archive.ubuntu.com/ubuntu bionic-backports InRelease: Couldn't create temporary file /tmp/apt.conf.WWtE1d for passing config to apt-key
E: The repository 'http://archive.ubuntu.com/ubuntu bionic-backports InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://archive.ubuntu.com/ubuntu bionic InRelease: Couldn't create temporary file /tmp/apt.conf.TP8dgO for passing config to apt-key
E: The repository 'http://archive.ubuntu.com/ubuntu bionic InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

解决:StackOverflow-sudo apt-get update couldn’t create temporary file

  • 改变 /tmp 目录的权限: chmod 1777 /tmp