关于【openvz】的问题- 第1页

Kokizzu

Asked: 2019-01-17 07:56:49 +0800 CST

将 16.04 openvz 升级到 18.04 但保持内核到 2.6

3

由于 OpenVZ 无法从虚拟机客户端（我只租用）内部升级。是否可以从 16.04.5 LTS 升级到 18.04 LTS？

问题在于 libc/locales

This version of libc requires kernel version 3.2 or later. Plase upgrade your kernel before installing glibc

试图apt-mark hold libc6和locales，do-release-upgrade拒绝继续。

pa4080

Asked: 2019-01-16 04:36:21 +0800 CST

SSH 服务器在重启后停止工作，原因是缺少 /var/run/sshd

31

我的 VPS 大约 3 个月没有重新启动。它托管在具有 OpenVZ 虚拟化类型的服务器上，操作系统为 Ubuntu 16.04。由于某种原因，我重新启动了 VPS，之后，我无法通过 ssh 连接到服务器，我收到的消息是：

ssh: connect to host srvname.com port 22: Connection refused

所以我在 VPS 上打开了一个串行控制台并开始调查......我已经清除并重新安装了但openssh-server没有成功。我花了两个小时在互联网上阅读有关类似问题的文章、问题和答案。

最后我设法理解/var/run/sshd在系统启动期间没有创建目录。一旦我手动创建它，我就可以毫无问题地启动 SSH 服务，但在下次重新启动时问题仍然存在。所以我的问题是：

这个问题的原因可能是什么？为什么/var/run/sshd系统启动时没有创建？
我怎样才能以适当的方式解决这个问题？我找到了本文末尾提到的临时解决方案。
这个问题可能与 VPS 的 OpenVZ 主机有关吗？我应该要求托管服务提供商解决吗？

和的输出为systemctl status ssh.service：sshd -Ddp 22journalctl -xe

# systemctl status ssh.service
● ssh.service - OpenBSD Secure Shell server
   Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
   Active: failed (Result: start-limit-hit) since вт 2019-01-15 12:58:08 EET; 22s ago
  Process: 407 ExecStartPre=/usr/sbin/sshd -t (code=exited, status=255)

яну 15 12:58:07 srvname systemd[1]: Failed to start OpenBSD Secure Shell server.
яну 15 12:58:07 srvname systemd[1]: ssh.service: Unit entered failed state.
яну 15 12:58:07 srvname systemd[1]: ssh.service: Failed with result 'exit-code'.
яну 15 12:58:08 srvname systemd[1]: ssh.service: Service hold-off time over, scheduling restart.
яну 15 12:58:08 srvname systemd[1]: Stopped OpenBSD Secure Shell server.
яну 15 12:58:08 srvname systemd[1]: ssh.service: Start request repeated too quickly.
яну 15 12:58:08 srvname systemd[1]: Failed to start OpenBSD Secure Shell server.
яну 15 12:58:08 srvname systemd[1]: ssh.service: Unit entered failed state.
яну 15 12:58:08 srvname systemd[1]: ssh.service: Failed with result 'start-limit-hit'.


# $(which sshd) -Ddp 22
debug1: sshd version OpenSSH_7.2, OpenSSL 1.0.2g  1 Mar 2016
debug1: private host key #0: ssh-rsa SHA256:...
debug1: private host key #1: ssh-dss SHA256:...
debug1: private host key #2: ecdsa-sha2-nistp256 SHA256:...
debug1: private host key #3: ssh-ed25519 SHA256:...
Missing privilege separation directory: /var/run/sshd


# journalctl -xe
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit ssh.service has begun starting up.
яну 15 13:21:21 srvname sshd[1688]: Missing privilege separation directory: /var/run/sshd
яну 15 13:21:21 srvname systemd[1]: ssh.service: Control process exited, code=exited status=255
яну 15 13:21:21 srvname systemd[1]: Failed to start OpenBSD Secure Shell server.
-- Subject: Unit ssh.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit ssh.service has failed.
-- 
-- The result is failed.
яну 15 13:21:21 srvname systemd[1]: ssh.service: Unit entered failed state.
яну 15 13:21:21 srvname systemd[1]: ssh.service: Failed with result 'exit-code'.
яну 15 13:21:22 srvname systemd[1]: ssh.service: Service hold-off time over, scheduling restart.
яну 15 13:21:22 srvname systemd[1]: Stopped OpenBSD Secure Shell server.
-- Subject: Unit ssh.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit ssh.service has finished shutting down.
яну 15 13:21:22 srvname systemd[1]: Starting OpenBSD Secure Shell server...
-- Subject: Unit ssh.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit ssh.service has begun starting up.
яну 15 13:21:22 srvname sshd[1691]: Missing privilege separation directory: /var/run/sshd
яну 15 13:21:22 srvname systemd[1]: ssh.service: Control process exited, code=exited status=255
яну 15 13:21:22 srvname systemd[1]: Failed to start OpenBSD Secure Shell server.
-- Subject: Unit ssh.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit ssh.service has failed.
-- 
-- The result is failed.
яну 15 13:21:22 srvname systemd[1]: ssh.service: Unit entered failed state.
яну 15 13:21:22 srvname systemd[1]: ssh.service: Failed with result 'exit-code'.
яну 15 13:21:22 srvname systemd[1]: ssh.service: Service hold-off time over, scheduling restart.
яну 15 13:21:22 srvname systemd[1]: Stopped OpenBSD Secure Shell server.
-- Subject: Unit ssh.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit ssh.service has finished shutting down.
яну 15 13:21:22 srvname systemd[1]: ssh.service: Start request repeated too quickly.
яну 15 13:21:22 srvname systemd[1]: Failed to start OpenBSD Secure Shell server.
-- Subject: Unit ssh.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit ssh.service has failed.
-- 
-- The result is failed.
яну 15 13:21:22 srvname systemd[1]: ssh.service: Unit entered failed state.
яну 15 13:21:22 srvname systemd[1]: ssh.service: Failed with result 'start-limit-hit'.

/usr/lib/tmpfiles.d/sshd.conf和的内容/etc/init/ssh.conf是：

# cat /usr/lib/tmpfiles.d/sshd.conf 
d /var/run/sshd 0755 root root

# cat /etc/init/ssh.conf | sed '/^#/ d'

description "OpenSSH server"

start on runlevel [2345]
stop on runlevel [!2345]

respawn
respawn limit 10 5
umask 022

env SSH_SIGSTOP=1
expect stop

console none

pre-start script
    test -x /usr/sbin/sshd || { stop; exit 0; }
    test -e /etc/ssh/sshd_not_to_be_run && { stop; exit 0; }

    mkdir -p -m0755 /var/run/sshd
end script

exec /usr/sbin/sshd -D

有关系统的其他信息：

# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.5 LTS
Release:    16.04
Codename:   xenial

# uname -a
Linux srvname 2.6.32-042stab127.2 #1 SMP Thu Jan 4 16:41:44 MSK 2018 x86_64 x86_64 x86_64 GNU/Linux

# apt show openssh-server | grep 'Version'
Version: 1:7.2p2-4ubuntu2.6

临时解决方案： 我发现这/var/run是一个符号链接/run，我不知道为什么需要这样做，但是当我从以下位置修改文件内容时/usr/lib/tmpfiles.d/sshd.conf：

d /var/run/sshd 0755 root root

至：

d /run/sshd 0755 root root

系统启动一切顺利，SSH服务正常启动，我可以通过SSH登录。

Rowno

Asked: 2010-11-28 22:43:59 +0800 CST

MySQL服务器Upstart脚本在启动时不起作用

5

由于某种原因，当我启动我的服务器时，MySQL 服务器的 Upstart 脚本不起作用，但是一旦服务器启动并且我sudo start mysql手动执行它就可以工作。

我正在运行安装了 Ubuntu 10.04 和 MySQL 版本 5.1.41（来自存储库的最新稳定版）的 OpenVZ VPS。MySQL 是全新安装的，没有更改配置。

/etc/init/mysql.conf：

# MySQL Service

description     "MySQL Server"
author          "Mario Limonciello <[email protected]>"

start on (net-device-up
          and local-filesystems
      and runlevel [2345])
stop on runlevel [016]

respawn

env HOME=/etc/mysql
umask 007

pre-start script
    #Sanity checks
    [ -r $HOME/my.cnf ]
    [ -d /var/run/mysqld ] || install -m 755 -o mysql -g root -d /var/run/mysqld
    # Load AppArmor profile
    if aa-status --enabled 2>/dev/null; then
        apparmor_parser -r /etc/apparmor.d/usr.sbin.mysqld || true
    fi
    LC_ALL=C BLOCKSIZE= df --portability /var/lib/mysql/. | tail -n 1 | awk '{ exit ($4<4096) }'
end script

exec /usr/sbin/mysqld

post-start script
    for i in `seq 1 30` ; do
        /usr/bin/mysqladmin --defaults-file="${HOME}"/debian.cnf ping && {
            exec "${HOME}"/debian-start
            # should not reach this line
            exit 2
        }
        sleep 1
    done
    exit 1
end script

将 16.04 openvz 升级到 18.04 但保持内核到 2.6

SSH 服务器在重启后停止工作，原因是缺少 /var/run/sshd

MySQL服务器Upstart脚本在启动时不起作用

如何运行 .sh 脚本？

如何安装 .tar.gz（或 .tar.bz2）文件？

如何列出所有已安装的软件包

无法锁定管理目录 (/var/lib/dpkg/) 是另一个进程在使用它吗？

问题[openvz](ubuntu)

将 16.04 openvz 升级到 18.04 但保持内核到 2.6

SSH 服务器在重启后停止工作，原因是缺少 /var/run/sshd

MySQL服务器Upstart脚本在启动时不起作用

如何运行 .sh 脚本？

如何安装 .tar.gz（或 .tar.bz2）文件？

如何列出所有已安装的软件包

无法锁定管理目录 (/var/lib/dpkg/) 是另一个进程在使用它吗？