21.10 中的 curl 动态链接问题

21.10 中的 curl 动态链接问题

我最近买了一台装有 ubuntu 20.04 的 Dell Precision 3450,并分两步升级到 ubuntu 21.10(20.04 -> 21.04 -> 21.10)。这需要/usr/lib/os-release手动升级文件,如所述这里,可能是因为戴尔对 OEM 安装进行了定制。

无论如何,系统现在运行良好,异常。当我curl在终端(第二次升级后安装的终端)中输入时,出现以下错误消息。

curl:加载共享库时出错:libldap_r-2.4.so.2:无法打开共享对象文件:没有此文件或目录

因此,curl 似乎正在尝试加载未安装的 2.4 版 libldap。我问过一位朋友,他也使用 ubuntu 21.10,curl他使用相同版本的curl(7.74.0-1.3ubuntu2) 和libldap(2.5.6+dfsg-1~exp1ubuntu1) 运行正常。

我还尝试安装旧版本的 libldap - 特别是libldap-2.4-2_2.4.57+dfsg-2ubuntu1_amd64.deb来自 21.04 repo 的文件 - 但是这样做之后,curl出现了一条新的错误消息:

curl:符号查找错误:curl:未定义符号:curl_multi_poll,版本URL_OPENSSL_4

所以这没有帮助。

有人知道发生了什么事吗?

我不明白动态链接是如何工作的,而且谷歌搜索也没有真正的帮助。本网站建议简单地做sudo /sbin/ldconfig -v但没有用。

我不知道该问题是否特定于 ubuntu 的 OEM 安装和“强制”升级,但令人惊讶的是,除此之外的一切curl似乎都有效。

编辑:

ldd $(type -p curl)这是系统正常运行的输出curl

 linux-vdso.so.1 (0x00007ffe043f1000)
libcurl.so.4 => /lib/x86_64-linux-gnu/libcurl.so.4 (0x00007fc870cbb000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fc870c9f000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fc870a77000)
libnghttp2.so.14 => /lib/x86_64-linux-gnu/libnghttp2.so.14 (0x00007fc870a49000)
libidn2.so.0 => /lib/x86_64-linux-gnu/libidn2.so.0 (0x00007fc870a28000)
librtmp.so.1 => /lib/x86_64-linux-gnu/librtmp.so.1 (0x00007fc870a09000)
libssh.so.4 => /lib/x86_64-linux-gnu/libssh.so.4 (0x00007fc87099a000)
libpsl.so.5 => /lib/x86_64-linux-gnu/libpsl.so.5 (0x00007fc870986000)
libssl.so.1.1 => /lib/x86_64-linux-gnu/libssl.so.1.1 (0x00007fc8708ee000)
libcrypto.so.1.1 => /lib/x86_64-linux-gnu/libcrypto.so.1.1 (0x00007fc870613000)
libgssapi_krb5.so.2 => /lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x00007fc8705c1000)
libldap-2.5.so.0 => /lib/x86_64-linux-gnu/libldap-2.5.so.0 (0x00007fc870562000)
liblber-2.5.so.0 => /lib/x86_64-linux-gnu/liblber-2.5.so.0 (0x00007fc87054f000)
libbrotlidec.so.1 => /lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x00007fc870541000)
/lib64/ld-linux-x86-64.so.2 (0x00007fc870db5000)
libunistring.so.2 => /lib/x86_64-linux-gnu/libunistring.so.2 (0x00007fc8703bf000)
libgnutls.so.30 => /lib/x86_64-linux-gnu/libgnutls.so.30 (0x00007fc8701da000)
libhogweed.so.6 => /lib/x86_64-linux-gnu/libhogweed.so.6 (0x00007fc870192000)
libnettle.so.8 => /lib/x86_64-linux-gnu/libnettle.so.8 (0x00007fc87014a000)
libgmp.so.10 => /lib/x86_64-linux-gnu/libgmp.so.10 (0x00007fc8700c7000)
libkrb5.so.3 => /lib/x86_64-linux-gnu/libkrb5.so.3 (0x00007fc86fffe000)
libk5crypto.so.3 => /lib/x86_64-linux-gnu/libk5crypto.so.3 (0x00007fc86ffd1000)
libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x00007fc86ffcb000)
libkrb5support.so.0 => /lib/x86_64-linux-gnu/libkrb5support.so.0 (0x00007fc86ffbb000)
libsasl2.so.2 => /lib/x86_64-linux-gnu/libsasl2.so.2 (0x00007fc86ffa0000)
libbrotlicommon.so.1 => /lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x00007fc86ff7d000)
libp11-kit.so.0 => /lib/x86_64-linux-gnu/libp11-kit.so.0 (0x00007fc86fe43000)
libtasn1.so.6 => /lib/x86_64-linux-gnu/libtasn1.so.6 (0x00007fc86fe2d000)
libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x00007fc86fe24000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007fc86fe0f000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fc86fe0a000)
libffi.so.8 => /lib/x86_64-linux-gnu/libffi.so.8 (0x00007fc86fdfe000)

ldd $(type -p curl)这是系统curl不起作用时的输出。

linux-vdso.so.1 (0x00007fffa0f86000)
libcurl.so.4 => /usr/lib/dcaenabler/libcurl.so.4 (0x00007fc1b789f000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fc1b7883000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fc1b765b000)
libnghttp2.so.14 => /lib/x86_64-linux-gnu/libnghttp2.so.14 (0x00007fc1b762d000)
libidn2.so.0 => /lib/x86_64-linux-gnu/libidn2.so.0 (0x00007fc1b760c000)
librtmp.so.1 => /lib/x86_64-linux-gnu/librtmp.so.1 (0x00007fc1b75ed000)
libpsl.so.5 => /lib/x86_64-linux-gnu/libpsl.so.5 (0x00007fc1b75d7000)
libssl.so.1.1 => /usr/lib/dcaenabler/libssl.so.1.1 (0x00007fc1b734a000)
libcrypto.so.1.1 => /usr/lib/dcaenabler/libcrypto.so.1.1 (0x00007fc1b6e7f000)
libgssapi_krb5.so.2 => /lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x00007fc1b6e2d000)
libldap_r-2.4.so.2 => not found
liblber-2.4.so.2 => not found
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fc1b6e26000)
/lib64/ld-linux-x86-64.so.2 (0x00007fc1b7b74000)
libunistring.so.2 => /lib/x86_64-linux-gnu/libunistring.so.2 (0x00007fc1b6ca4000)
libgnutls.so.30 => /lib/x86_64-linux-gnu/libgnutls.so.30 (0x00007fc1b6abf000)
libhogweed.so.6 => /lib/x86_64-linux-gnu/libhogweed.so.6 (0x00007fc1b6a77000)
libnettle.so.8 => /lib/x86_64-linux-gnu/libnettle.so.8 (0x00007fc1b6a31000)
libgmp.so.10 => /lib/x86_64-linux-gnu/libgmp.so.10 (0x00007fc1b69ac000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fc1b69a7000)
libkrb5.so.3 => /lib/x86_64-linux-gnu/libkrb5.so.3 (0x00007fc1b68de000)
libk5crypto.so.3 => /lib/x86_64-linux-gnu/libk5crypto.so.3 (0x00007fc1b68b1000)
libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x00007fc1b68ab000)
libkrb5support.so.0 => /lib/x86_64-linux-gnu/libkrb5support.so.0 (0x00007fc1b689d000)
libp11-kit.so.0 => /lib/x86_64-linux-gnu/libp11-kit.so.0 (0x00007fc1b6761000)
libtasn1.so.6 => /lib/x86_64-linux-gnu/libtasn1.so.6 (0x00007fc1b674b000)
libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x00007fc1b6744000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007fc1b672f000)
libffi.so.8 => /lib/x86_64-linux-gnu/libffi.so.8 (0x00007fc1b6723000)

which curl有问题的系统上的输出:

/usr/bin/curl

有问题的系统的输出aptitude search ~o

i   dca-enabler                                                                            - Provides the DELL Client Agent Enabler software.                                                
i   dca-enabler-packages                                                                   - Provides the DELL Client Agent Enabler Dependencies.                                            
i   dell-canonical-logo                                                                    - Install the dell-canonical-logo in gnome-control-center.                                        
i   dell-super-key                                                                         - Disables the super key by default.                                                              
i   djvu2pdf                                                                               - Script to convert Djvu files to PDF files                                                       
i   fist                                                                                   - Factory Install System Test                                                                     
i A gir1.2-unity-5.0                                                                       - GObject introspection data for the Unity library                                                
i A linux-headers-5.10.0-1031-oem                                                          - Linux kernel headers for version 5.10.0 on 64 bit x86 SMP                                       
i A linux-headers-5.10.0-1050-oem                                                          - Linux kernel headers for version 5.10.0 on 64 bit x86 SMP                                       
i A linux-headers-oem-20.04b                                                               - OEM Linux kernel headers                                                                        
i A linux-image-5.10.0-1031-oem                                                            - Signed kernel image oem                                                                         
i A linux-image-5.10.0-1050-oem                                                            - Signed kernel image oem                                                                         
i A linux-image-oem-20.04b                                                                 - OEM Linux kernel image                                                                          
i A linux-modules-5.10.0-1031-oem                                                          - Linux kernel extra modules for version 5.10.0 on 64 bit x86 SMP                                 
i A linux-modules-5.10.0-1050-oem                                                          - Linux kernel extra modules for version 5.10.0 on 64 bit x86 SMP                                 
i   linux-oem-20.04b                                                                       - Complete OEM Linux kernel and headers                                                           
i A linux-oem-5.10-headers-5.10.0-1031                                                     - Header files related to Linux kernel version 5.10.0                                             
i A linux-oem-5.10-headers-5.10.0-1050                                                     - Header files related to Linux kernel version 5.10.0                                             
i A linux-oem-5.10-tools-5.10.0-1031                                                       - Linux kernel version specific tools for version 5.10.0-1031                                     
i   linux-tools-5.10.0-1031-oem                                                            - Linux kernel version specific tools for version 5.10.0-1031                                     
i   lsd                                                                                    - An ls command with a lot of pretty colors.                                                      
i   manage-distro-upgrade                                                                  - Disable upgrade for OEM.                                                                        
i A manage-estar-settings                                                                  - Energy Star related settings                                                                    
i A oem-fix-misc-cnl-tlp-estar-conf                                                        - customized configuration for tlp.                                                               
i   oem-ouagadougou-meta                                                                   - Meta package for the OEM mainstreams image.                                                     
i   oem-release                                                                            - Show oem release version                                                                        
i   oem-somerville-butterfree-meta                                                         - hardware support for Somerville Butterfree platform                                             
i   oem-somerville-factory-butterfree-meta                                                 - hardware support for Somerville Butterfree platform (factory)                                   
i   oem-somerville-factory-meta                                                            - hardware support for Somerville platform                                                        
i   oem-somerville-meta                                                                    - hardware support for Somerville platform                                                        
i A oem-somerville-partner-archive-keyring                                                 - Somerville project keyrings                                                                     
i   slack-desktop                                                                          - Slack Desktop                                                                                   
i   sosreport-oem                                                                          - OEM image releated sosreport plugins and utilities.                                             

aptitude search ~b不输出任何内容——没有破损的包裹。

以下是 的输出tree /usr/local/

/usr/local/
├── bin
├── etc
├── games
├── include
├── lib
│   └── python3.9
│       └── dist-packages
├── man -> share/man
├── sbin
├── share
│   ├── ca-certificates
│   ├── fonts
│   ├── man
│   ├── sgml
│   │   ├── declaration
│   │   ├── dtd
│   │   ├── entities
│   │   ├── misc
│   │   └── stylesheet
│   ├── texmf
│   └── xml
│       ├── declaration
│       ├── entities
│       ├── misc
│       └── schema
├── src
└── stow

输出dpkg -S /usr/lib/dcaenabler/libcurl.so.4 /usr/lib/dcaenabler/libssl.so.1.1 /usr/lib/dcaenabler/libcrypto.so.1.1

dca-enabler-packages: /usr/lib/dcaenabler/libcurl.so.4
dca-enabler-packages: /usr/lib/dcaenabler/libssl.so.1.1
dca-enabler-packages: /usr/lib/dcaenabler/libcrypto.so.1.1

最有可能相关的是:我刚刚观察到重复的线条形式

10 Nov 2021 15:36:59    j-dell  env[10851]  /usr/sbin/dcae: error while loading shared libraries: libldap_r-2.4.so.2: cannot open shared object file: No such file or directory

/var/log/syslog如果我dcae在命令行中运行,我会收到错误消息

dcae: error while loading shared libraries: libldap_r-2.4.so.2: cannot open shared object file: No such file or directory

就像 一样curl

答案1

输出分析ldd /usr/bin/curl显示 Dell 软件包导致了此问题。要修复系统,我们需要通过以下方式删除它们:

sudo apt-get purge --autoremove dca-enabler-packages dca-enabler

注意:ldd 输出分析工具在此问答。它对我以编程方式检测您的问题有很大帮助。

答案2

我找到了另一个简单的解决方案,使用 snap 版本的 curl sudo snap install curl,我刚刚在我的戴尔电脑上遇到了这个问题,snap 版本对我来说很好用

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