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user1041353
Asked: 2021-09-01 05:55:31 +0800 CST

Ubuntu 21.04 冻结

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每次启动和重新启动后，我的 Ubuntu 21.04 都可以正常工作。然而 3-4 小时后，它“冻结”了。除了强制重启没有任何帮助。如何避免后者？

终端运行：

<free -h
              total        used        free      shared  buff/cache   available
Mem:          3.5Gi       2.2Gi       243Mi       278Mi       1.1Gi       832Mi
Swap:         2.0Gi        17Mi       2.0Gi

vm.swappiness = 60

Filename                Type        Size    Used    Priority
/swapfile                               file        2097148 17772   -2

top - 09:32:34 up 26 min,  1 user,  load average: 0.26, 0.59, 1.18
Tasks: 203 total,   3 running, 200 sleeping,   0 stopped,   0 zombie
%Cpu(s): 42.9 us,  0.0 sy,  0.0 ni, 57.1 id,  0.0 wa,  0.0 hi,  0.0 si,  0top - 09:33:54 up 27 min,  1 user,  load average: 0.72, 0.73, 1.18
Tasks: 203 total,   3 running, 200 sleeping,   0 stopped,   0 zombie
%Cpu(s): 25.0 us, 18.8 sy,  0.0 ni, 56.2 id,  0.0 wa,  0.0 hi,  0.0 si, top - 09:33:54 up 27 min,  1 user,  load average: 0.72, 0.73, 1.18
Tasks: 203 total,   4 running, 199 sleeping,   0 stopped,   0 zombie
%Cpu(s): 40.0 us, 20.0 sy,  0.0 ni, 40.0 id,  0.0 wa,  0.0 hi,  0.0 si,top - 09:33:54 up 27 min,  1 user,  load average: 0.72, 0.73, 1.18
Tasks: 203 total,   2 running, 201 sleeping,   0 stopped,   0 zombie
%Cpu(s): 33.3 us, 33.3 sy,  0.0 ni, 33.3 id,  0.0 wa,  0.0 hi,  0.0 si,top - 09:33:54 up 27 min,  1 user,  load average: 0.72, 0.73, 1.18
Tasks: 203 total,   5 running, 198 sleeping,   0 stopped,   0 zombie
%Cpu(s): 28.6 us, 42.9 sy,  0.0 ni, 28.6 id,  0.0 wa,  0.0 hi,  0.0 si,
MiB Mem :   3623.3 total,    139.9 free,   2286.0 used,   1197.4 buff/c
MiB Swap:   2048.0 total,   2029.4 free,     18.6 used.    822.0 avail> 


# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda1 during installation
UUID=28539ebd-a6e3-4fa7-8dcc-8bdc31b0f505 /               ext4    errors=remount-ro 0       1
/swapfile                                 none            swap    sw

首先，最有价值的东西应该放在硬盘上（例如 Transcend），并且每天都在修改（关闭 Internet）。准备好安装工具。当冻结不好并且无法获得建议时，请强制关闭，插入安装工具，然后按F2启动。从启动菜单中，选择上述工具并重新安装系统。首选 LTS 版本。介意 Livepatch。这在我的情况下有效。

restart

1 个回答

  1. Best Answer

    您没有足够的 RAM 或足够的交换空间。

                  total        used        free      shared  buff/cache   available
Mem:          3.5Gi       2.2Gi       243Mi       278Mi       1.1Gi       832Mi
Swap:         2.0Gi        17Mi       2.0Gi

    我们会将您的交换从 2G 增加到 4G，看看是否有帮助...

    注意rm：和命令的错误使用dd会导致数据丢失。建议复制/粘贴。

    在terminal...

    sudo swapoff -a           # turn off swap
sudo rm -i /swapfile      # remove old /swapfile

sudo dd if=/dev/zero of=/swapfile bs=1M count=4096

sudo chmod 600 /swapfile  # set proper file protections
sudo mkswap /swapfile     # init /swapfile
sudo swapon /swapfile     # turn on swap
free -h                   # confirm 4G RAM and 4G swap

    编辑 /etc/fstab，使用sudo -H gedit /etc/fstab或sudo pico /etc/fstab。

    在 /etc/fstab 中确认此 /swapfile 行...并确认没有其他“交换”行...在此行中使用空格...确认 NO TABS...

    /swapfile  none  swap  sw  0  0

    reboot                    # reboot and verify operation

    更新#1：

    重新安装 Ubuntu 以解决问题。

    • 1

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