stumblebee's questions

今天当我启动系统时，收到以下错误消息：

Jan 07 19:38:25 ubuntu20 systemd[1]: Condition check resulted in System Security Services Daemon being skipped.
Jan 07 19:38:25 ubuntu20 systemd[1]: Reached target User and Group Name Lookups.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-nss.socket: Bound to unit sssd.service, but unit isn't active.
Jan 07 19:38:25 ubuntu20 systemd[1]: Dependency failed for SSSD NSS Service responder socket.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-nss.socket: Job sssd-nss.socket/start failed with result 'dependency'.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-autofs.socket: Bound to unit sssd.service, but unit isn't active.
Jan 07 19:38:25 ubuntu20 systemd[1]: Dependency failed for SSSD AutoFS Service responder socket.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-autofs.socket: Job sssd-autofs.socket/start failed with result 'dependency'.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-pac.socket: Bound to unit sssd.service, but unit isn't active.
Jan 07 19:38:25 ubuntu20 systemd[1]: Dependency failed for SSSD PAC Service responder socket.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-pac.socket: Job sssd-pac.socket/start failed with result 'dependency'.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-pam-priv.socket: Bound to unit sssd.service, but unit isn't active.
Jan 07 19:38:25 ubuntu20 systemd[1]: Dependency failed for SSSD PAM Service responder private socket.
Jan 07 19:38:25 ubuntu20 systemd[1]: Dependency failed for SSSD PAM Service responder socket.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-pam.socket: Job sssd-pam.socket/start failed with result 'dependency'.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-pam-priv.socket: Job sssd-pam-priv.socket/start failed with result 'dependency'.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-ssh.socket: Bound to unit sssd.service, but unit isn't active.
Jan 07 19:38:25 ubuntu20 systemd[1]: Dependency failed for SSSD SSH Service responder socket.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-ssh.socket: Job sssd-ssh.socket/start failed with result 'dependency'.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-sudo.socket: Bound to unit sssd.service, but unit isn't active.
Jan 07 19:38:25 ubuntu20 systemd[1]: Dependency failed for SSSD Sudo Service responder socket.
Jan 07 19:38:25 ubuntu20 systemd[1]: sssd-sudo.socket: Job sssd-sudo.socket/start failed with result 'dependency'.
Jan 07 19:38:25 ubuntu20 systemd[1]: Starting Accounts Service...

似乎sudo也因为这个原因停止了工作。我现在得到了sudo: 3 incorrect password attempts。昨天一切都很好，我没有对系统进行任何更改或安装任何软件。

更新：

~$ systemctl status sssd
○ sssd.service - System Security Services Daemon
     Loaded: loaded (/lib/systemd/system/sssd.service; enabled; vendor preset: enabled)
     Active: inactive (dead)
  Condition: start condition failed at Tue 2025-01-07 19:38:24 EST; 30min ago
             ├─ ConditionPathExists=|/etc/sssd/sssd.conf was not met
             └─ ConditionDirectoryNotEmpty=|/etc/sssd/conf.d was not met

Jan 07 19:38:25 ubuntu20 systemd[1]: Condition check resulted in System Security Services Daemon being skipped.

~$ systemctl start sssd

它提示我“需要身份验证”，我的密码被接受了。

~$ systemctl status sssd
○ sssd.service - System Security Services Daemon
     Loaded: loaded (/lib/systemd/system/sssd.service; enabled; vendor preset: enabled)
     Active: inactive (dead)
  Condition: start condition failed at Tue 2025-01-07 20:12:37 EST; 15min ago
             ├─ ConditionPathExists=|/etc/sssd/sssd.conf was not met
             └─ ConditionDirectoryNotEmpty=|/etc/sssd/conf.d was not met

Jan 07 19:38:25 ubuntu20 systemd[1]: Condition check resulted in System Security Services Daemon being skipped.
Jan 07 20:12:37 ubuntu20 systemd[1]: Condition check resulted in System Security Services Daemon being skipped.

现在sudo可以正常工作。为什么 SSSD 会干扰sudo功能？

~$ journalctl -xeu sssd.service
░░ Support: http://www.ubuntu.com/support
░░ 
░░ A start job for unit sssd.service has finished successfully.
░░ 
░░ The job identifier is 199.
-- Boot 12bc6c7bf6f14ab8a277022b764c4482 --
Jan 07 19:27:30 ubuntu20 systemd[1]: Condition check resulted in System Security Services Daemon being skipped.
░░ Subject: A start job for unit sssd.service has finished successfully
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░ 
░░ A start job for unit sssd.service has finished successfully.
░░ 
░░ The job identifier is 183.
-- Boot 002196eb090942a8bf85fb57d3466b96 --
Jan 07 19:38:25 ubuntu20 systemd[1]: Condition check resulted in System Security Services Daemon being skipped.
░░ Subject: A start job for unit sssd.service has finished successfully
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░ 
░░ A start job for unit sssd.service has finished successfully.
░░ 
░░ The job identifier is 103.
Jan 07 20:12:37 ubuntu20 systemd[1]: Condition check resulted in System Security Services Daemon being skipped.
░░ Subject: A start job for unit sssd.service has finished successfully
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support

我按照Mozilla 支持网站上的说明进行操作：

为基于 Debian 的发行版安装 Firefox .deb 包（推荐）

.deb要通过 APT 存储库安装该软件包，请执行以下操作：

1. 如果不存在，则创建一个目录来存储 APT 存储库密钥：

   sudo install -d -m 0755 /etc/apt/keyrings
   

2. 导入 Mozilla APT 存储库签名密钥：

   wget -q https://packages.mozilla.org/apt/repo-signing-key.gpg -O- | sudo tee /etc/apt/keyrings/packages.mozilla.org.asc > /dev/null

   如果你还没有wget安装，你可以使用以下命令安装：sudo apt-get install wget

3. 指纹应该是35BAA0B33E9EB396F59CA838C0BA5CE6DC6315A3。您可以使用以下命令检查它：

   gpg -n -q --import --import-options import-show /etc/apt/keyrings/packages.mozilla.org.asc | awk '/pub/{getline; gsub(/^ +| +$/,""); if($0 == "35BAA0B33E9EB396F59CA838C0BA5CE6DC6315A3") print "\nThe key fingerprint matches ("$0").\n"; else print "\nVerification failed: the fingerprint ("$0") does not match the expected one.\n"}'

4. 接下来，将 Mozilla APT 存储库添加到您的源列表中：

   echo "deb [signed-by=/etc/apt/keyrings/packages.mozilla.org.asc] https://packages.mozilla.org/apt mozilla main" | sudo tee -a /etc/apt/sources.list.d/mozilla.list > /dev/null

5. 配置 APT 以优先考虑来自 Mozilla 存储库的软件包：

   echo '
   Package: *
   Pin: origin packages.mozilla.org
   Pin-Priority: 1000
   ' | sudo tee /etc/apt/preferences.d/mozilla
   

6. 更新您的软件包列表，并安装 Firefox.deb软件包：

   sudo apt-get update && sudo apt-get install firefox
   

所以现在我有：

$ apt list --installed | grep firefox
firefox/mozilla,now 132.0~build1 amd64 [installed]

$ snap list | grep firefox
firefox                    131.0.2-1                    5091   latest/stable
mozilla**         -

我不介意在我的系统上同时安装apt和snap版本。问题是，apt即使完成了“配置 APT 以优先处理来自 Mozilla 存储库的软件包”步骤，版本也会在软件更新完成后被卸载。

如何阻止版本被卸载并被软件更新apt替换？snap

我编辑/etc/default/grub并更改了这一行：

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

至：

GRUB_CMDLINE_LINUX_DEFAULT=""

然后运行sudo update-grub并重新启动。

Ramdisk 消息在引导过程中显示如下：

但引导消息正确显示：

如果我进入“恢复模式”，Ramdisk 启动消息会正确显示。有没有我缺少的设置？我在运行 Ubuntu 18.04.6 时没有遇到这个问题。

根据要求，这是我的 CPU 信息：

inxi -C

CPU:
  Topology: Dual Core model: Intel Celeron N3050 bits: 64 type: MCP 
  L2 cache: 1024 KiB 
  Speed: 547 MHz min/max: 480/2160 MHz Core speeds (MHz): 1: 538 2: 480 

我在我的网络上使用中继器。我的系统设置只显示一个用于 WIFI 连接的设备名称。它默认我的 WIFI 连接到中继器而不是我的路由器。iwlist scan显示中继器和路由器。如何更改与路由器的默认连接？我以某种方式通过MAC地址猜测？

nmcli device wifi list返回-

我的系统正在选择最弱但速率最高的信号。我不想要那个。我的路由器离我的笔记本电脑有 10 英尺远。

这是 的简短版本iwlist：

iwlist scan
wlp2s0    Scan completed :
          Cell 01 - Address: 3C:37:86:12:A3:A8
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=48/70  Signal level=-62 dBm  
                    Encryption key:on
                    ESSID:"trinity"

      Cell 03 - Address: C0:C5:22:4C:9E:D0
                Channel:1
                Frequency:2.412 GHz (Channel 1)
                Quality=61/70  Signal level=-49 dBm  
                Encryption key:on
                ESSID:"trinity"

C0:C5:22:4C:9E:D0我更喜欢连接的是 MAC 。