root@6527d9173397:/# apt update Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease Ign:2 http://security.ubuntu.com/ubuntu jammy-security InRelease Ign:2 http://security.ubuntu.com/ubuntu jammy-security InRelease Ign:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease Ign:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease Ign:2 http://security.ubuntu.com/ubuntu jammy-security InRelease Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease Err:2 http://security.ubuntu.com/ubuntu jammy-security InRelease Temporary failure resolving 'security.ubuntu.com' Ign:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease Ign:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease Ign:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease Ign:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease Err:1 http://archive.ubuntu.com/ubuntu jammy InRelease Temporary failure resolving 'archive.ubuntu.com' Err:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease Temporary failure resolving 'archive.ubuntu.com' Err:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease Temporary failure resolving 'archive.ubuntu.com' Reading package lists... Done Building dependency tree... Done Reading state information... Done All packages are up to date. W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/jammy/InRelease Temporary failure resolving 'archive.ubuntu.com' W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/jammy-updates/InRelease Temporary failure resolving 'archive.ubuntu.com' W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/jammy-backports/InRelease Temporary failure resolving 'archive.ubuntu.com' W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/jammy-security/InRelease Temporary failure resolving 'security.ubuntu.com' W: Some index files failed to download. They have been ignored, or old ones used instead.

MySQL无法重启报错Warning: World-writable config file ‘/etc/my.cnf’ is ignored的解决方法

修复此问题的关键在于调整/etc/my.cnf的权限，确保只有所有者（通常是root用户）和所属组可以读取和写入，而其他用户只能读取。这可以通过chmod命令来实现： bash sudo chmod 644 /etc/my.cnf 这将设置...

tealinux-control-center.ign:tealinux-control-center.ign

这个名为 "tealinux-control-center.ign" 的文件看起来像是一个 ignition 文件，通常与初启配置或云实例的自动化部署相关。Ignition 是 CoreOS 开发的一种配置工具，用于在系统启动时确保服务器或虚拟机具有正确的...

root@6527d9173397:/# apt update Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease Ign:2 http://security.ubuntu.com/ubuntu jammy-security InRelease Ign:2 http://security.ubuntu.com/ubuntu jammy-security InRelease Ign:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease Ign:4 http://archive.ubuntu.com/ubuntu jammy-backports InRelease Ign:2 http://security.ubuntu.com/ubuntu jammy-security InRelease

有几个软件源分别是：http://archive.ubuntu.com/ubuntu jammy、http://security.ubuntu.com/ubuntu jammy-security、http://archive.ubuntu.com/ubuntu jammy-updates、http://archive.ubuntu.com/ubuntu jammy-...

命令报错： sudo apt update Hit:1 http://mirrors.aliyun.com/ubuntu bionic InRelease Hit:2 http://mirrors.aliyun.com/ubuntu bionic-updates InRelease Hit:3 http://mirrors.aliyun.com/ubuntu bionic-backports InRelease Hit:4 http://mirrors.aliyun.com/ubuntu bionic-security InRelease Get:5 https://mirrors.aliyun.com/docker-ce/linux/ubuntu bionic InRelease [64.4 kB] Ign:6 https://pkg.jenkins.io/debian-stable binary/ InRelease Get:7 https://pkg.jenkins.io/debian-stable binary/ Release [2,044 B] Get:8 https://pkg.jenkins.io/debian-stable binary/ Release.gpg [833 B] Ign:8 https://pkg.jenkins.io/debian-stable binary/ Release.gpg Reading package lists... Done W: GPG error: https://pkg.jenkins.io/debian-stable binary/ Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5BA31D57EF5975CA E: The repository 'http://pkg.jenkins.io/debian-stable binary/ Release' 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.

这个错误是因为缺少 Jenkins 仓库的公钥。...3. 重新运行 sudo apt update 命令以更新软件包列表。现在，您应该能够成功更新软件包列表，然后继续安装 Jenkins。请尝试执行之前的步骤，并告诉我是否还遇到问题。

Ign:1 http://mirrors.tuna.tsinghua.edu.cn/ros/ubuntu bionic/main arm64 ros-melodic-camera-calibration-parsers arm64 1.11.13-0bionic.20221025.222229 Err:2 http://mirrors.aliyun.com/ubuntu-ports bionic/main arm64 libv4l2rds0 arm64 1.14.2-1 Temporary failure resolving 'mirrors.aliyun.com' Ign:3 http://mirrors.tuna.tsinghua.edu.cn/ros/ubuntu bionic/main arm64 ros-melodic-camera-info-manager arm64 1.11.13-0bionic.20221025.222546 Err:4 http://mirrors.aliyun.com/ubuntu-ports bionic/universe arm64 libyaml-cpp0.5v5 arm64 0.5.2-4ubuntu1 Temporary failure resolving 'mirrors.aliyun.com' Err:1 http://packages.ros.org/ros/ubuntu bionic/main arm64 ros-melodic-camera-calibration-parsers arm64 1.11.13-0bionic.20221025.222229 Temporary failure resolving 'mirrors.tuna.tsinghua.edu.cn' Ign:5 http://mirrors.tuna.tsinghua.edu.cn/ros/ubuntu bionic/main arm64 ros-melodic-usb-cam arm64 0.3.7-1bionic.20230322.235948 Err:6 http://mirrors.aliyun.com/ubuntu-ports bionic/universe arm64 libyaml-cpp-dev arm64 0.5.2-4ubuntu1 Temporary failure resolving 'mirrors.aliyun.com' Err:3 http://packages.ros.org/ros/ubuntu bionic/main arm64 ros-melodic-camera-info-manager arm64 1.11.13-0bionic.20221025.222546 Temporary failure resolving 'mirrors.tuna.tsinghua.edu.cn' Err:7 http://mirrors.aliyun.com/ubuntu-ports bionic/universe arm64 v4l-utils arm64 1.14.2-1 Temporary failure resolving 'mirrors.aliyun.com' Err:5 http://packages.ros.org/ros/ubuntu bionic/main arm64 ros-melodic-usb-cam arm64 0.3.7-1bionic.20230322.235948 Temporary failure resolving 'mirrors.tuna.tsinghua.edu.cn' E: Failed to fetch http://mirrors.aliyun.com/ubuntu-ports/pool/main/v/v4l-utils/libv4l2rds0_1.14.2-1_arm64.deb Temporary failure resolving 'mirrors.aliyun.com' E: Failed to fetch http://mirrors.aliyun.com/ubuntu-ports/pool/universe/y/yaml-cpp/libyaml-cpp0.5v5_0.5.2-4ubuntu1_arm64.deb Temporary failure resolving 'mirrors.aliyun.com' E: Failed to fetch http://mirrors.aliyun.com/ubuntu-ports/pool/universe/y/yaml-cpp/libyaml-cpp-dev_0.5.2-4ubuntu1_arm64.deb Temporary failure resolving 'mirrors.aliyun.com' E: Failed to fetch http://packages.ros.org/ros/ubuntu/pool/main/r/ros-melodic-camera-calibration-parsers/ros-melodic-camera-calibration-parsers_1.11.13-0bionic.20221025.222229_arm64.deb Temporary failure resolving 'mirrors.tuna.tsinghua.edu.cn' E: Failed to fetch http://packages.ros.org/ros/ubuntu/pool/main/r/ros-melodic-camera-info-manager/ros-melodic-camera-info-manager_1.11.13-0bionic.20221025.222546_arm64.deb Temporary failure resolving 'mirrors.tuna.tsinghua.edu.cn' E: Failed to fetch http://mirrors.aliyun.com/ubuntu-ports/pool/universe/v/v4l-utils/v4l-utils_1.14.2-1_arm64.deb Temporary failure resolving 'mirrors.aliyun.com' E: Failed to fetch http://packages.ros.org/ros/ubuntu/pool/main/r/ros-melodic-usb-cam/ros-melodic-usb-cam_0.3.7-1bionic.20230322.235948_arm64.deb Temporary failure resolving 'mirrors.tuna.tsinghua.edu.cn' E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

5. 运行 apt-get update 命令来更新软件包索引文件，然后再次尝试安装软件包。 6. 如果以上方法都无效，你可以尝试使用 --fix-missing 参数运行 apt-get 命令，例如：sudo apt-get --fix-missing install。 ...

Ign:1 http://mirrors.aliyun.com/ubuntu bionic InRelease连接不上啊

如果在使用Ubuntu系统时，连接阿里云镜像源时出现“连接不上”的问题，可能是由于网络连接问题导致的。以下是一些可能的解决方法： 1. 检查你的网络连接是否正常。你可以使用ping命令来测试你的网络连接是否正常。...

Ign:1 http://mirrors.tuna.tsinghua.edu.cn/ros/ubuntu bionic/main arm64 ros-melodic-image-geometry arm64 1.13.1-1bionic.20221025.222313 Ign:2 http://mirrors.tuna.tsinghua.edu.cn/ros/ubuntu bionic/main arm64 ros-melodic-camera-calibration arm64 1.15.2-1bionic.20221025.223849 Err:1 http://packages.ros.org/ros/ubuntu bionic/main arm64 ros-melodic-image-geometry arm64 1.13.1-1bionic.20221025.222313 Temporary failure resolving 'mirrors.tuna.tsinghua.edu.cn' Err:2 http://packages.ros.org/ros/ubuntu bionic/main arm64 ros-melodic-camera-calibration arm64 1.15.2-1bionic.20221025.223849 Temporary failure resolving 'mirrors.tuna.tsinghua.edu.cn' E: Failed to fetch http://packages.ros.org/ros/ubuntu/pool/main/r/ros-melodic-image-geometry/ros-melodic-image-geometry_1.13.1-1bionic.20221025.222313_arm64.deb Temporary failure resolving 'mirrors.tuna.tsinghua.edu.cn' E: Failed to fetch http://packages.ros.org/ros/ubuntu/pool/main/r/ros-melodic-camera-calibration/ros-melodic-camera-calibration_1.15.2-1bionic.20221025.223849_arm64.deb Temporary failure resolving 'mirrors.tuna.tsinghua.edu.cn' E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

你可以尝试运行 "apt-get update" 命令来更新软件包源，以便重新获取存档。请在终端中执行以下命令： sudo apt-get update 这将更新软件包列表并重新获取存档。如果仍然遇到问题，你可以尝试使用 "--fix-...

After this operation, 393 kB of additional disk space will be used. Ign:1 https://mirrors.tuna.tsinghua.edu.cn/debian bullseye/main amd64 unzip amd64 6.0-26+deb11u1 Err:1 https://mirrors.tuna.tsinghua.edu.cn/debian bullseye/main amd64 unzip amd64 6.0-26+deb11u1 Cannot initiate the connection to mirrors.tuna.tsinghua.edu.cn:443 (2402:f000:1:400::2). - connect (101: Network is unreachable) Could not connect to mirrors.tuna.tsinghua.edu.cn:443 (101.6.15.130), connection timed out E: Failed to fetch https://mirrors.tuna.tsinghua.edu.cn/debian-security/pool/updates/main/u/unzip/unzip_6.0-26%2bdeb11u1_amd64.deb Cannot initiate the connection to mirrors.tuna.tsinghua.edu.cn:443 (2402:f000:1:400::2). - connect (101: Network is unreachable) Could not connect to mirrors.tuna.tsinghua.edu.cn:443 (101.6.15.130), connection timed out E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

sudo apt-get update sudo apt-get install unzip 这将会更新软件包列表并尝试重新安装 unzip。如果仍然无法连接到清华大学的镜像站，你可以尝试更换为其他的软件源。在 Debian 系统中，你可以编辑 /etc/apt/...

Ign:1 https://mirrors.tuna.tsinghua.edu.cn/debian

Ign:1 https://mirrors.tuna.tsinghua.edu.cn/debian 是一个apt源的错误提示信息，表示某个特定的源在更新软件包列表时被忽略。这通常是因为该源的配置文件存在问题或者被系统忽略引起的。在这个特定的错误中，Ign...

apt update Ign

"apt update" 是 Linux 系统中用于更新包列表的命令，它会检查系统中存储的软件包索引，并从远程仓库下载...2. "apt update" 命令中 "Ign" 选项的具体用法是什么？ 3. 如何查看 apt update 时被忽略更新的详细原因？

详细分析以下代码#include <stdio.h> #include <signal.h> #include <unistd.h> #include <stdlib.h> #include <sys/wait.h> int pid1, pid2; int endflag = 0, pf1 = 0, pf2 = 0; void intdelete() { kill(pid1, 16); kill(pid2, 17); endflag = 1; } void int1() { printf("child process 1 is killed by parent!\n"); exit(0); } void int2() { printf("child process 2 is killed by parent!\n"); exit(0); } int main() { int exitpid; signal(SIGINT, SIG_IGN); signal(SIGQUIT, SIG_IGN); while ((pid1 = fork()) == -1); if (pid1 == 0) { printf("p1\n"); signal(SIGUSR1, int1); signal(16, SIG_IGN); pause(); exit(0); } else { while ((pid2 = fork()) == -1); if (pid2 == 0) { printf("p2\n"); signal(SIGUSR2, int2); signal(17, SIG_IGN); pause(); exit(0); } else { printf("parent\n"); signal(SIGINT, intdelete); /接收DEL信号，并转intdelete()/ waitpid(-1, &exitpid, 0); printf("parent process is killed!\n"); exit(0); } } }

程序中创建了两个子进程pid1和pid2，并且在父进程中对这两个子进程进行了控制。程序中使用了信号处理函数来控制子进程的运行和退出。当父进程接收到SIGINT信号时，会调用intdelete函数，该函数会向子进程pid1和pid...

Ubuntu报错 Ign开头是什么错误

Ubuntu报错 Ign开头通常是由于软件包列表或存储库无法更新而导致的，可能是由于网络连接问题或存储库不可用引起的。 Ign 表示忽略，意味着 Ubuntu 在尝试更新时无法获取必要的信息并忽略该存储库。您可以尝试以下...

详细分析以下代码# include<stdlib.h> #include<sys/wait.h> #include <stdio.h> #include <signal.h> #include <unistd.h> void waiting(),stop(); int wait_mark; int main() { int p1,p2; while ((p1=fork())==-1); if (p1>0) { while ((p2=fork())==-1); if (p2>0) { printf("parent\n"); wait_mark=1; signal(SIGINT,stop); /接收DEL信号，并转stop()/ waiting(); kill(p1,16); /向P1发中断信号16/ kill(p2,17); /向P2发中断信号17/ wait(0); wait(0); printf("parent process is killed!\n"); exit(0); } else { printf("p2\n"); wait_mark=1; signal(17,stop); signal(SIGINT,SIG_IGN); waiting(); lockf(fileno(stdout),1,0); printf("child process 2 is killed by parent!\n"); lockf(fileno(stdout),0,0); exit(0); } } else { printf("p1\n"); wait_mark=1; signal(16,stop); signal(SIGINT,SIG_IGN); waiting(); lockf(fileno(stdout),1,0); printf("child process 1 is killed by parent!\n"); lockf(fileno(stdout),0,0); exit(0); } } void waiting() { while (wait_mark!=0); } void stop() { wait_mark=0; }

1. 引入头文件 #include <stdlib.h> #include <sys/wait.h> #include <stdio.h> #include <signal.h> #include <unistd.h> 这些头文件包含了进程控制和信号处理相关的函数。 2. 声明函数 waiting 和 stop...

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