数组、矩阵和张量都是在计算机科学和数学领域中用于表示和处理数据的重要概念，它们之间有以下关系：
综上所述，数组是矩阵和张量的基础，矩阵是二维数组的特殊形式，而张量是多维数组的扩展。在实际应用中，矩阵和张量常用于表示和处理复杂的数学和科学数据，例如图像、声音和文本等。
逻辑电路中的 AND 门（与门）是一种基本的逻辑门，它具有两个输入和一个输出。AND 门的输出取决于其两个输入的状态，当且仅当所有输入都为高电平时，输出才为高电平；否则，输出为低电平。
AND 门的真值表如下所示：
| 输入 A | 输入 B | 输出 |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
其中，0 表示低电平（或假），1 表示高电平（或真）。
AND 门的符号通常用一个符号表示，如下所示：
A ------\
AND ---- Output
B ------/AND 门的运作原理是，当且仅当所有输入信号都为高电平时，输出信号才为高电平；否则，输出为低电平。这可以用晶体管等电子元件实现，也可以通过逻辑门电路来实现。
在数字电子系统中，AND 门是非常基础且重要的逻辑门之一，它常用于构建更复杂的逻辑电路，如加法器、多路选择器、计数器等。
在数学中，符号 θ（读作 theta）通常表示角度。θ 是希腊字母中的第八个字母，被广泛用于表示角度，特别是在几何学、三角学和物理学中。θ 通常用来表示平面角或空间角的大小。
在统计学和机器学习中，θ 也经常用作参数的符号，特别是在表示模型参数或未知参数时。例如，在线性回归中，θ 可以代表回归系数。在概率论中，θ 也可以表示分布的参数。
总之，θ 在不同的数学和科学领域中有不同的含义，但通常用于表示角度或参数。
二分类是一种分类问题，其中待分类的样本只能归类到两个不同的类别中的一个。这种问题通常涉及将输入数据划分为两个互斥的类别。例如：
在二分类问题中，每个样本都有一个已知的类别标签，通常表示为正类别和负类别（或类别 1 和类别 0）。算法的目标是通过学习训练数据集中的模式和特征，对新的未知样本进行分类，并尽可能地将其正确地归类到正确的类别中。
感知机（Perceptron）是一种最简单的人工神经网络模型，用于二分类问题。它由美国心理学家 Frank Rosenblatt 在 1957 年提出，是受到对生物神经元的研究启发而产生的。
感知机的原理如下：
感知机模型的局限性在于它只能处理线性可分的问题，即数据可以通过一条直线或超平面进行划分。因此，对于复杂的非线性问题，单层感知机无法解决。然而，通过堆叠多个感知机，可以构建出更复杂的神经网络模型，如多层感知机（Multilayer Perceptron，MLP），用于解决更复杂的分类和回归问题。
安装epel软件源仓库
[root@localhost ~]# dnf install epel-release Last metadata expiration check: 0:03:00 ago on Tue 12 Dec 2023 09:01:45 AM CST. Dependencies resolved. ================================================================================ Package Architecture Version Repository Size ================================================================================ Installing: epel-release noarch 9-7.el9 extras 19 k Transaction Summary ================================================================================ Install 1 Package Total download size: 19 k Installed size: 26 k Is this ok [y/N]:
安装编译工具及内核开发库
[root@localhost ~]# dnf install gcc make perl kernel-devel kernel-headers bzip2 dkms Extra Packages for Enterprise Linux 9 - x86_64 2.6 MB/s | 20 MB 00:07 Extra Packages for Enterprise Linux 9 openh264 1.2 kB/s | 2.5 kB 00:02 Dependencies resolved. ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: bzip2 x86_64 1.0.8-8.el9 baseos 52 k dkms noarch 3.0.12-1.el9 epel 80 k gcc x86_64 11.4.1-2.1.el9 appstream 32 M kernel-devel x86_64 5.14.0-362.8.1.el9_3 appstream 20 M kernel-headers x86_64 5.14.0-362.8.1.el9_3 appstream 6.5 M make x86_64 1:4.3-7.el9 baseos 530 k perl x86_64 4:5.32.1-480.el9 appstream 13 k Upgrading: elfutils-libelf x86_64 0.189-3.el9 baseos 192 k elfutils-libs x86_64 0.189-3.el9 baseos 254 k glibc x86_64 2.34-83.el9.7 baseos 1.9 M glibc-common x86_64 2.34-83.el9.7 baseos 309 k glibc-gconv-extra x86_64 2.34-83.el9.7 baseos 1.6 M glibc-langpack-en x86_64 2.34-83.el9.7 baseos 567 k libgcc x86_64 11.4.1-2.1.el9 baseos 94 k libgomp x86_64 11.4.1-2.1.el9 baseos 270 k libstdc++ x86_64 11.4.1-2.1.el9 baseos 736 k openssl x86_64 1:3.0.7-24.el9 baseos 1.2 M openssl-libs x86_64 1:3.0.7-24.el9 baseos 2.1 M zlib x86_64 1.2.11-40.el9 baseos 90 k Installing dependencies: annobin x86_64 12.12-1.el9 appstream 977 k binutils x86_64 2.35.2-42.el9 baseos 4.5 M binutils-gold x86_64 2.35.2-42.el9 baseos 734 k bison x86_64 3.7.4-5.el9 appstream 921 k cpp x86_64 11.4.1-2.1.el9 appstream 11 M dwz x86_64 0.14-3.el9 appstream 127 k efi-srpm-macros noarch 6-2.el9_0 appstream 22 k elfutils-debuginfod-client x86_64 0.189-3.el9 baseos 36 k elfutils-libelf-devel x86_64 0.189-3.el9 appstream 21 k flex x86_64 2.6.4-9.el9 appstream 308 k fonts-srpm-macros noarch 1:2.0.5-7.el9.1 appstream 27 k gcc-c++ x86_64 11.4.1-2.1.el9 appstream 13 M gcc-plugin-annobin x86_64 11.4.1-2.1.el9 appstream 48 k ghc-srpm-macros noarch 1.5.0-6.el9 appstream 7.8 k glibc-devel x86_64 2.34-83.el9.7 appstream 50 k glibc-headers x86_64 2.34-83.el9.7 appstream 450 k go-srpm-macros noarch 3.2.0-2.el9 appstream 26 k kernel-core x86_64 5.14.0-362.8.1.el9_3 baseos 20 M kernel-devel-matched x86_64 5.14.0-362.8.1.el9_3 appstream 5.1 M kernel-modules-core x86_64 5.14.0-362.8.1.el9_3 baseos 32 M kernel-srpm-macros noarch 1.0-13.el9 appstream 15 k libdatrie x86_64 0.2.13-4.el9 appstream 32 k libmpc x86_64 1.2.1-4.el9 appstream 61 k libpkgconf x86_64 1.7.3-10.el9 baseos 35 k libstdc++-devel x86_64 11.4.1-2.1.el9 appstream 2.2 M libthai x86_64 0.1.28-8.el9 appstream 208 k libxcrypt-devel x86_64 4.4.18-3.el9 appstream 28 k libzstd-devel x86_64 1.5.1-2.el9 appstream 46 k llvm-libs x86_64 16.0.6-4.el9 appstream 24 M lua-srpm-macros noarch 1-6.el9 appstream 8.5 k m4 x86_64 1.4.19-1.el9 appstream 294 k ocaml-srpm-macros noarch 6-6.el9 appstream 7.8 k openblas-srpm-macros noarch 2-11.el9 appstream 7.3 k openssl-devel x86_64 1:3.0.7-24.el9 appstream 3.0 M perl-Algorithm-Diff noarch 1.2010-4.el9 appstream 47 k perl-Archive-Tar noarch 2.38-6.el9 appstream 71 k perl-Archive-Zip noarch 1.68-6.el9 appstream 106 k perl-Attribute-Handlers noarch 1.01-480.el9 appstream 28 k perl-AutoLoader noarch 5.74-480.el9 appstream 21 k perl-AutoSplit noarch 5.74-480.el9 appstream 22 k perl-B x86_64 1.80-480.el9 appstream 179 k perl-Benchmark noarch 1.23-480.el9 appstream 27 k perl-CPAN noarch 2.29-3.el9 appstream 556 k perl-CPAN-Meta noarch 2.150010-460.el9 appstream 176 k perl-CPAN-Meta-Requirements noarch 2.140-461.el9 appstream 31 k perl-CPAN-Meta-YAML noarch 0.018-461.el9 appstream 26 k perl-Carp noarch 1.50-460.el9 appstream 29 k perl-Class-Struct noarch 0.66-480.el9 appstream 22 k perl-Compress-Bzip2 x86_64 2.28-5.el9 appstream 69 k perl-Compress-Raw-Bzip2 x86_64 2.101-5.el9 appstream 34 k perl-Compress-Raw-Lzma x86_64 2.101-3.el9 appstream 50 k perl-Compress-Raw-Zlib x86_64 2.101-5.el9 appstream 60 k perl-Config-Extensions noarch 0.03-480.el9 appstream 12 k perl-Config-Perl-V noarch 0.33-4.el9 appstream 21 k perl-DBM_Filter noarch 0.06-480.el9 appstream 32 k perl-DB_File x86_64 1.855-4.el9 appstream 81 k perl-Data-Dumper x86_64 2.174-462.el9 appstream 55 k perl-Data-OptList noarch 0.110-17.el9 appstream 26 k perl-Data-Section noarch 0.200007-14.el9 appstream 25 k perl-Devel-PPPort x86_64 3.62-4.el9 appstream 211 k perl-Devel-Peek x86_64 1.28-480.el9 appstream 32 k perl-Devel-SelfStubber noarch 1.06-480.el9 appstream 15 k perl-Devel-Size x86_64 0.83-10.el9 appstream 31 k perl-Digest noarch 1.19-4.el9 appstream 25 k perl-Digest-MD5 x86_64 2.58-4.el9 appstream 36 k perl-Digest-SHA x86_64 1:6.02-461.el9 appstream 61 k perl-Digest-SHA1 x86_64 2.13-34.el9 appstream 52 k perl-DirHandle noarch 1.05-480.el9 appstream 13 k perl-Dumpvalue noarch 2.27-480.el9 appstream 19 k perl-DynaLoader x86_64 1.47-480.el9 appstream 26 k perl-Encode x86_64 4:3.08-462.el9 appstream 1.7 M perl-Encode-devel x86_64 4:3.08-462.el9 appstream 41 k perl-English noarch 1.11-480.el9 appstream 14 k perl-Env noarch 1.04-460.el9 appstream 19 k perl-Errno x86_64 1.30-480.el9 appstream 15 k perl-Exporter noarch 5.74-461.el9 appstream 31 k perl-ExtUtils-CBuilder noarch 1:0.280236-4.el9 appstream 46 k perl-ExtUtils-Command noarch 2:7.60-3.el9 appstream 14 k perl-ExtUtils-Constant noarch 0.25-480.el9 appstream 47 k perl-ExtUtils-Embed noarch 1.35-480.el9 appstream 18 k perl-ExtUtils-Install noarch 2.20-4.el9 appstream 44 k perl-ExtUtils-MM-Utils noarch 2:7.60-3.el9 appstream 12 k perl-ExtUtils-MakeMaker noarch 2:7.60-3.el9 appstream 289 k perl-ExtUtils-Manifest noarch 1:1.73-4.el9 appstream 34 k perl-ExtUtils-Miniperl noarch 1.09-480.el9 appstream 15 k perl-ExtUtils-ParseXS noarch 1:3.40-460.el9 appstream 182 k perl-Fcntl x86_64 1.13-480.el9 appstream 20 k perl-File-Basename noarch 2.85-480.el9 appstream 17 k perl-File-Compare noarch 1.100.600-480.el9 appstream 13 k perl-File-Copy noarch 2.34-480.el9 appstream 20 k perl-File-DosGlob x86_64 1.12-480.el9 appstream 20 k perl-File-Fetch noarch 1.00-4.el9 appstream 30 k perl-File-Find noarch 1.37-480.el9 appstream 26 k perl-File-HomeDir noarch 1.006-4.el9 appstream 57 k perl-File-Path noarch 2.18-4.el9 appstream 35 k perl-File-Temp noarch 1:0.231.100-4.el9 appstream 59 k perl-File-Which noarch 1.23-10.el9 appstream 21 k perl-File-stat noarch 1.09-480.el9 appstream 17 k perl-FileCache noarch 1.10-480.el9 appstream 15 k perl-FileHandle noarch 2.03-480.el9 appstream 16 k perl-Filter x86_64 2:1.60-4.el9 appstream 81 k perl-Filter-Simple noarch 0.96-460.el9 appstream 27 k perl-FindBin noarch 1.51-480.el9 appstream 14 k perl-GDBM_File x86_64 1.18-480.el9 appstream 23 k perl-Getopt-Long noarch 1:2.52-4.el9 appstream 60 k perl-Getopt-Std noarch 1.12-480.el9 appstream 16 k perl-HTTP-Tiny noarch 0.076-461.el9 appstream 53 k perl-Hash-Util x86_64 0.23-480.el9 appstream 34 k perl-Hash-Util-FieldHash x86_64 1.20-480.el9 appstream 38 k perl-I18N-Collate noarch 1.02-480.el9 appstream 14 k perl-I18N-LangTags noarch 0.44-480.el9 appstream 55 k perl-I18N-Langinfo x86_64 0.19-480.el9 appstream 23 k perl-IO x86_64 1.43-480.el9 appstream 87 k perl-IO-Compress noarch 2.102-4.el9 appstream 256 k perl-IO-Compress-Lzma noarch 2.101-4.el9 appstream 74 k perl-IO-Socket-IP noarch 0.41-5.el9 appstream 42 k perl-IO-Socket-SSL noarch 2.073-1.el9 appstream 217 k perl-IO-Zlib noarch 1:1.11-4.el9 appstream 19 k perl-IPC-Cmd noarch 2:1.04-461.el9 appstream 39 k perl-IPC-Open3 noarch 1.21-480.el9 appstream 23 k perl-IPC-SysV x86_64 2.09-4.el9 appstream 42 k perl-IPC-System-Simple noarch 1.30-6.el9 appstream 40 k perl-Importer noarch 0.026-4.el9 appstream 39 k perl-JSON-PP noarch 1:4.06-4.el9 appstream 65 k perl-Locale-Maketext noarch 1.29-461.el9 appstream 94 k perl-Locale-Maketext-Simple noarch 1:0.21-480.el9 appstream 18 k perl-MIME-Base64 x86_64 3.16-4.el9 appstream 30 k perl-MIME-Charset noarch 1.012.2-15.el9 appstream 48 k perl-MRO-Compat noarch 0.13-15.el9 appstream 19 k perl-Math-BigInt noarch 1:1.9998.18-460.el9 appstream 188 k perl-Math-BigInt-FastCalc x86_64 0.500.900-460.el9 appstream 27 k perl-Math-BigRat noarch 0.2614-460.el9 appstream 38 k perl-Math-Complex noarch 1.59-480.el9 appstream 47 k perl-Memoize noarch 1.03-480.el9 appstream 57 k perl-Module-Build noarch 2:0.42.31-9.el9 appstream 255 k perl-Module-CoreList noarch 1:5.20210320-3.el9 appstream 81 k perl-Module-CoreList-tools noarch 1:5.20210320-3.el9 appstream 18 k perl-Module-Load noarch 1:0.36-4.el9 appstream 17 k perl-Module-Load-Conditional noarch 0.74-4.el9 appstream 22 k perl-Module-Loaded noarch 1:0.08-480.el9 appstream 14 k perl-Module-Metadata noarch 1.000037-460.el9 appstream 35 k perl-Module-Signature noarch 0.88-1.el9 appstream 83 k perl-Mozilla-CA noarch 20200520-6.el9 appstream 12 k perl-NDBM_File x86_64 1.15-480.el9 appstream 22 k perl-NEXT noarch 0.67-480.el9 appstream 21 k perl-Net noarch 1.02-480.el9 appstream 26 k perl-Net-Ping noarch 2.74-5.el9 appstream 49 k perl-Net-SSLeay x86_64 1.92-2.el9 appstream 365 k perl-ODBM_File x86_64 1.16-480.el9 appstream 23 k perl-Object-HashBase noarch 0.009-7.el9 appstream 25 k perl-Opcode x86_64 1.48-480.el9 appstream 36 k perl-POSIX x86_64 1.94-480.el9 appstream 96 k perl-Package-Generator noarch 1.106-23.el9 appstream 23 k perl-Params-Check noarch 1:0.38-461.el9 appstream 22 k perl-Params-Util x86_64 1.102-5.el9 appstream 33 k perl-PathTools x86_64 3.78-461.el9 appstream 85 k perl-Perl-OSType noarch 1.010-461.el9 appstream 23 k perl-PerlIO-via-QuotedPrint noarch 0.09-4.el9 appstream 22 k perl-Pod-Checker noarch 4:1.74-4.el9 appstream 32 k perl-Pod-Escapes noarch 1:1.07-460.el9 appstream 20 k perl-Pod-Functions noarch 1.13-480.el9 appstream 14 k perl-Pod-Html noarch 1.25-480.el9 appstream 27 k perl-Pod-Perldoc noarch 3.28.01-461.el9 appstream 83 k perl-Pod-Simple noarch 1:3.42-4.el9 appstream 215 k perl-Pod-Usage noarch 4:2.01-4.el9 appstream 40 k perl-Safe noarch 2.41-480.el9 appstream 25 k perl-Scalar-List-Utils x86_64 4:1.56-461.el9 appstream 71 k perl-Search-Dict noarch 1.07-480.el9 appstream 13 k perl-SelectSaver noarch 1.02-480.el9 appstream 12 k perl-SelfLoader noarch 1.26-480.el9 appstream 22 k perl-Socket x86_64 4:2.031-4.el9 appstream 54 k perl-Software-License noarch 0.103014-12.el9 appstream 128 k perl-Storable x86_64 1:3.21-460.el9 appstream 95 k perl-Sub-Exporter noarch 0.987-27.el9 appstream 66 k perl-Sub-Install noarch 0.928-28.el9 appstream 22 k perl-Symbol noarch 1.08-480.el9 appstream 14 k perl-Sys-Hostname x86_64 1.23-480.el9 appstream 17 k perl-Sys-Syslog x86_64 0.36-461.el9 appstream 47 k perl-Term-ANSIColor noarch 5.01-461.el9 appstream 48 k perl-Term-Cap noarch 1.17-460.el9 appstream 22 k perl-Term-Complete noarch 1.403-480.el9 appstream 13 k perl-Term-ReadLine noarch 1.17-480.el9 appstream 19 k perl-Term-Size-Perl x86_64 0.031-12.el9 appstream 21 k perl-Term-Table noarch 0.015-8.el9 appstream 35 k perl-Test noarch 1.31-480.el9 appstream 29 k perl-Test-Harness noarch 1:3.42-461.el9 appstream 267 k perl-Test-Simple noarch 3:1.302183-4.el9 appstream 525 k perl-Text-Abbrev noarch 1.02-480.el9 appstream 12 k perl-Text-Balanced noarch 2.04-4.el9 appstream 48 k perl-Text-Diff noarch 1.45-13.el9 appstream 41 k perl-Text-Glob noarch 0.11-15.el9 appstream 13 k perl-Text-ParseWords noarch 3.30-460.el9 appstream 16 k perl-Text-Tabs+Wrap noarch 2013.0523-460.el9 appstream 23 k perl-Text-Template noarch 1.59-5.el9 appstream 60 k perl-Thread noarch 3.05-480.el9 appstream 18 k perl-Thread-Queue noarch 3.14-460.el9 appstream 21 k perl-Thread-Semaphore noarch 2.13-480.el9 appstream 16 k perl-Tie noarch 4.6-480.el9 appstream 32 k perl-Tie-File noarch 1.06-480.el9 appstream 43 k perl-Tie-Memoize noarch 1.1-480.el9 appstream 14 k perl-Tie-RefHash noarch 1.40-4.el9 appstream 23 k perl-Time noarch 1.03-480.el9 appstream 19 k perl-Time-HiRes x86_64 4:1.9764-462.el9 appstream 57 k perl-Time-Local noarch 2:1.300-7.el9 appstream 33 k perl-Time-Piece x86_64 1.3401-480.el9 appstream 41 k perl-URI noarch 5.09-3.el9 appstream 108 k perl-Unicode-Collate x86_64 1.29-4.el9 appstream 732 k perl-Unicode-Normalize x86_64 1.27-461.el9 appstream 91 k perl-Unicode-UCD noarch 0.75-480.el9 appstream 79 k perl-User-pwent noarch 1.03-480.el9 appstream 21 k perl-autodie noarch 2.34-4.el9 appstream 94 k perl-autouse noarch 1.11-480.el9 appstream 14 k perl-base noarch 2.27-480.el9 appstream 16 k perl-bignum noarch 0.51-460.el9 appstream 42 k perl-blib noarch 1.07-480.el9 appstream 13 k perl-constant noarch 1.33-461.el9 appstream 23 k perl-debugger noarch 1.56-480.el9 appstream 134 k perl-deprecate noarch 0.04-480.el9 appstream 15 k perl-devel x86_64 4:5.32.1-480.el9 appstream 660 k perl-diagnostics noarch 1.37-480.el9 appstream 211 k perl-doc noarch 5.32.1-480.el9 appstream 4.5 M perl-encoding x86_64 4:3.00-462.el9 appstream 62 k perl-encoding-warnings noarch 0.13-480.el9 appstream 17 k perl-experimental noarch 0.022-6.el9 appstream 21 k perl-fields noarch 2.27-480.el9 appstream 16 k perl-filetest noarch 1.03-480.el9 appstream 15 k perl-if noarch 0.60.800-480.el9 appstream 14 k perl-inc-latest noarch 2:0.500-20.el9 appstream 24 k perl-interpreter x86_64 4:5.32.1-480.el9 appstream 71 k perl-less noarch 0.03-480.el9 appstream 13 k perl-lib x86_64 0.65-480.el9 appstream 15 k perl-libnet noarch 3.13-4.el9 appstream 125 k perl-libnetcfg noarch 4:5.32.1-480.el9 appstream 17 k perl-libs x86_64 4:5.32.1-480.el9 appstream 2.0 M perl-local-lib noarch 2.000024-13.el9 appstream 67 k perl-locale noarch 1.09-480.el9 appstream 14 k perl-macros noarch 4:5.32.1-480.el9 appstream 11 k perl-meta-notation noarch 5.32.1-480.el9 appstream 10 k perl-mro x86_64 1.23-480.el9 appstream 28 k perl-open noarch 1.12-480.el9 appstream 17 k perl-overload noarch 1.31-480.el9 appstream 46 k perl-overloading noarch 0.02-480.el9 appstream 13 k perl-parent noarch 1:0.238-460.el9 appstream 14 k perl-perlfaq noarch 5.20201107-4.el9 appstream 372 k perl-ph x86_64 5.32.1-480.el9 appstream 42 k perl-podlators noarch 1:4.14-460.el9 appstream 112 k perl-sigtrap noarch 1.09-480.el9 appstream 16 k perl-sort noarch 2.04-480.el9 appstream 14 k perl-srpm-macros noarch 1-41.el9 appstream 8.2 k perl-subs noarch 1.03-480.el9 appstream 12 k perl-threads x86_64 1:2.25-460.el9 appstream 57 k perl-threads-shared x86_64 1.61-460.el9.0.1 appstream 44 k perl-utils noarch 5.32.1-480.el9 appstream 55 k perl-vars noarch 1.05-480.el9 appstream 13 k perl-version x86_64 7:0.99.28-4.el9 appstream 62 k perl-vmsish noarch 1.04-480.el9 appstream 14 k pkgconf x86_64 1.7.3-10.el9 baseos 40 k pkgconf-m4 noarch 1.7.3-10.el9 baseos 14 k pkgconf-pkg-config x86_64 1.7.3-10.el9 baseos 10 k pyproject-srpm-macros noarch 1.9.0-1.el9 appstream 14 k python-srpm-macros noarch 3.9-52.el9 appstream 22 k python3-pyparsing noarch 2.4.7-9.el9 baseos 150 k qt5-srpm-macros noarch 5.15.9-1.el9 appstream 7.9 k redhat-rpm-config noarch 201-1.el9 appstream 66 k rust-srpm-macros noarch 17-4.el9 appstream 9.3 k sombok x86_64 2.4.0-16.el9 appstream 47 k systemtap-sdt-devel x86_64 4.9-3.el9 appstream 73 k tar x86_64 2:1.34-6.el9_1 baseos 876 k unzip x86_64 6.0-56.el9 baseos 180 k zip x86_64 3.0-35.el9 baseos 263 k zlib-devel x86_64 1.2.11-40.el9 appstream 44 k Installing weak dependencies: perl-CPAN-DistnameInfo noarch 0.12-23.el9 appstream 14 k perl-Encode-Locale noarch 1.05-21.el9 appstream 19 k perl-Term-Size-Any noarch 0.002-35.el9 appstream 13 k perl-TermReadKey x86_64 2.38-11.el9 appstream 36 k perl-Unicode-LineBreak x86_64 2019.001-11.el9 appstream 120 k Transaction Summary ================================================================================ Install 283 Packages Upgrade 12 Packages Total download size: 210 M Is this ok [y/N]:
执行挂载安装
[root@localhost ~]# mount /dev/cdrom /mnt/ mount: /mnt: WARNING: source write-protected, mounted read-only. [root@localhost ~]# /mnt/VBoxLinuxAdditions.run Verifying archive integrity... 100% MD5 checksums are OK. All good. Uncompressing VirtualBox 7.0.12 Guest Additions for Linux 100% VirtualBox Guest Additions installer Copying additional installer modules ... Installing additional modules ... VirtualBox Guest Additions: Starting. VirtualBox Guest Additions: Setting up modules VirtualBox Guest Additions: Building the VirtualBox Guest Additions kernel modules. This may take a while. VirtualBox Guest Additions: To build modules for other installed kernels, run VirtualBox Guest Additions: /sbin/rcvboxadd quicksetup <version> VirtualBox Guest Additions: or VirtualBox Guest Additions: /sbin/rcvboxadd quicksetup all VirtualBox Guest Additions: Kernel headers not found for target kernel 5.14.0-284.11.1.el9_2.x86_64. Please install them and execute /sbin/rcvboxadd setup VirtualBox Guest Additions: reloading kernel modules and services VirtualBox Guest Additions: unable to load vboxguest kernel module, see dmesg VirtualBox Guest Additions: kernel modules and services were not reloaded The log file /var/log/vboxadd-setup.log may contain further information. [root@localhost ~]#
重启系统并查看服务状态
[root@localhost ~]# systemctl status vboxadd.service
● vboxadd.service
Loaded: loaded (/opt/VBoxGuestAdditions-7.0.12/init/vboxadd; enabled; preset: disabled)
Active: active (exited) since Tue 2023-12-12 09:28:56 CST; 51s ago
Process: 733 ExecStart=/opt/VBoxGuestAdditions-7.0.12/init/vboxadd start (code=exited, status=0/SUCCESS)
Main PID: 733 (code=exited, status=0/SUCCESS)
CPU: 1.195s
Dec 12 09:28:54 localhost systemd[1]: Starting vboxadd.service...
Dec 12 09:28:54 localhost vboxadd[733]: VirtualBox Guest Additions: Starting.
Dec 12 09:28:56 localhost.localdomain systemd[1]: Finished vboxadd.service.
[root@localhost ~]#
错误提示
libssl.so.1.1: cannot open shared object file:
安装兼容包
[root@localhost ~]# rpm -lq compat-openssl11 /etc/pki/tls /etc/pki/tls/openssl11.cnf /usr/lib/.build-id /usr/lib/.build-id/1c /usr/lib/.build-id/1c/3767ddaa4d1def25adad2b7381dd9f64c398ea /usr/lib/.build-id/8d /usr/lib/.build-id/8d/871848498766a795a3dfd8fd6a65e1da922e70 /usr/lib/.build-id/8f /usr/lib/.build-id/8f/41514e4e08e283ef0e9f264b9d8f5b65885aae /usr/lib/.build-id/a7 /usr/lib/.build-id/a7/a80f68249faa8cbcb4b7ea61ec4bd12a3b007c /usr/lib64/engines-1.1 /usr/lib64/engines-1.1/afalg.so /usr/lib64/engines-1.1/padlock.so /usr/lib64/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1.1k /usr/lib64/libssl.so.1.1 /usr/lib64/libssl.so.1.1.1k /usr/share/doc/compat-openssl11 /usr/share/doc/compat-openssl11/FAQ /usr/share/doc/compat-openssl11/NEWS /usr/share/doc/compat-openssl11/README /usr/share/licenses/compat-openssl11 /usr/share/licenses/compat-openssl11/LICENSE [root@localhost ~]#
查看客户机列表
[ops@localhost ~]$ sudo virsh list --all
Id Name State
----------------------------------
39 windows04 running
52 windows05 running
53 fileserver01 running
65 windows03 running
79 windows-desktop running
80 windows02 running
- ubuntu shut off
- windows01 shut off
- windows06 shut off
[ops@localhost ~]$
查看指定vm的块设备列表
[ops@localhost ~]$ sudo virsh domblklist ubuntu
Target Source
-------------------------------------------------
vda /var/lib/libvirt/images/ubuntu.qcow2
sda -
[ops@localhost ~]$
查看磁盘信息
[ops@localhost ~]$ sudo qemu-img info /var/lib/libvirt/images/ubuntu.qcow2
image: /var/lib/libvirt/images/ubuntu.qcow2
file format: qcow2
virtual size: 100 GiB (107374182400 bytes)
disk size: 68.5 GiB
cluster_size: 65536
Format specific information:
compat: 1.1
compression type: zlib
lazy refcounts: true
refcount bits: 16
corrupt: false
extended l2: false
Child node '/file':
filename: /var/lib/libvirt/images/ubuntu.qcow2
protocol type: file
file length: 100 GiB (107390828544 bytes)
disk size: 68.5 GiB
Format specific information:
extent size hint: 1048576
[ops@localhost ~]$
块设备容量调整命令参数
[ops@localhost ~]$ sudo virsh blockresize --help
NAME
blockresize - Resize block device of domain.
SYNOPSIS
blockresize <domain> <path> <size>
DESCRIPTION
Resize block device of domain.
OPTIONS
[--domain] <string> domain name, id or uuid
[--path] <string> Fully-qualified path of block device
[--size] <number> New size of the block device, as scaled integer (default KiB)
[ops@localhost ~]$
必须在启动状态下执行命令
[ops@localhost ~]$ sudo virsh blockresize ubuntu /var/lib/libvirt/images/ubuntu.qcow2 200G
error: Failed to resize block device '/var/lib/libvirt/images/ubuntu.qcow2'
error: Requested operation is not valid: domain is not running
[ops@localhost ~]$
启动服务并执行命令
[ops@localhost ~]$ sudo virsh start ubuntu
Domain 'ubuntu' started
[ops@localhost ~]$ sudo virsh blockresize ubuntu /var/lib/libvirt/images/ubuntu.qcow2 200G
Block device '/var/lib/libvirt/images/ubuntu.qcow2' is resized
[ops@localhost ~]$
重新查看磁盘信息
[ops@localhost ~]$ sudo qemu-img info /var/lib/libvirt/images/ubuntu.qcow2
image: /var/lib/libvirt/images/ubuntu.qcow2
file format: qcow2
virtual size: 200 GiB (214748364800 bytes)
disk size: 68.5 GiB
cluster_size: 65536
cleanly shut down: no
Format specific information:
compat: 1.1
compression type: zlib
lazy refcounts: true
refcount bits: 16
corrupt: false
extended l2: false
Child node '/file':
filename: /var/lib/libvirt/images/ubuntu.qcow2
protocol type: file
file length: 100 GiB (107390828544 bytes)
disk size: 68.5 GiB
Format specific information:
extent size hint: 1048576
[ops@localhost ~]$