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nzsql：加载共享库时出错：libcom_err.so.2：错误的 ELF 类：Ubuntu 18.04 上的 ELFCLASS64

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nzsql：加载共享库时出错：libcom_err.so.2：错误的 ELF 类：Ubuntu 18.04 上的 ELFCLASS64

我正在尝试在 Ubuntu 18.04 系统上安装 Netezza Client。安装后我们检查了一下，发现出现了下面的错误信息

/usr/local/nz$ nzsql
nzsql: error while loading shared libraries: libcom_err.so.2: wrong ELF class: ELFCLASS64

我的诊断步骤：

  1. 查找共享库

    /usr/local/nz$ ldd ./bin/nzsql
linux-gate.so.1 (0xf7f13000)
libz.so.1 => /lib/i386-linux-gnu/libz.so.1 (0xf7ee0000)
libkrb5.so.3 => /usr/local/nz/./bin/../lib/libkrb5.so.3 (0xf7e3a000)
libcrypt.so.1 => /lib/i386-linux-gnu/libcrypt.so.1 (0xf7e08000)
libssl.so.10 => /usr/local/nz/./bin/../lib/libssl.so.10 (0xf7da5000)
libcrypto.so.10 => /usr/local/nz/./bin/../lib/libcrypto.so.10 (0xf7bf2000)
libresolv.so.2 => /lib/i386-linux-gnu/libresolv.so.2 (0xf7bda000)
libnsl.so.1 => /lib/i386-linux-gnu/libnsl.so.1 (0xf7bbf000)
libdl.so.2 => /lib/i386-linux-gnu/libdl.so.2 (0xf7bba000)
libncurses.so.5 => /lib/i386-linux-gnu/libncurses.so.5 (0xf7b94000)
libm.so.6 => /lib/i386-linux-gnu/libm.so.6 (0xf7a92000)
libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xf78b4000)
libcom_err.so.3 => /usr/local/nz/./bin/../lib/libcom_err.so.3 (0xf78b1000)
libk5crypto.so.3 => /usr/local/nz/./bin/../lib/../lib/libk5crypto.so.3 (0xf7882000)
libkrb5support.so.0 => /usr/local/nz/./bin/../lib/../lib/libkrb5support.so.0 (0xf7879000)
libgssapi_krb5.so.2 => /usr/local/nz/./bin/../lib/libgssapi_krb5.so.2 (0xf783e000)
/lib/ld-linux.so.2 (0xf7f15000)
libcom_err.so.2 => not found
libtinfo.so.5 => /lib/i386-linux-gnu/libtinfo.so.5 (0xf781b000)

    我看到了“未找到”消息

    libcom_err.so.2 => not found

  2. 尝试安装包

    /usr/local/nz$ sudo apt-get install libcomerr2
[sudo] password for ocmsapp:
Reading package lists... Done
Building dependency tree
Reading state information... Done
libcomerr2 is already the newest version (1.44.1-1ubuntu1.2).
The following packages were automatically installed and are no longer required:
  linux-headers-4.15.0-65 linux-headers-4.15.0-65-generic linux-image-4.15.0-65-generic linux-modules-4.15.0-65-generic
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 36 not upgraded.

    它说包已经在那里。

  3. 检查已安装的版本

    :~$ dpkg --listfiles libcom-err2
/.
/lib
/lib/x86_64-linux-gnu
/lib/x86_64-linux-gnu/libcom_err.so.2.1
/usr
/usr/share
/usr/share/doc
/usr/share/doc/libcom-err2
/usr/share/doc/libcom-err2/changelog.Debian.gz
/usr/share/doc/libcom-err2/copyright
/lib/x86_64-linux-gnu/libcom_err.so.2

  4. 创建软链接

    sudo ln -s /lib/x86_64-linux-gnu/libcom_err.so.2 libcom_err.so.2

    然后我们再检查，ldd ./bin/nzsql仍然看到未找到的消息

     libcom_err.so.2 => not found

    一旦我们尝试运行nzsql命令，我们就会收到以下消息

    /usr/local/nz$ nzsql
nzsql: error while loading shared libraries: libcom_err.so.2: wrong ELF class: ELFCLASS64

可能存在什么问题？我该如何解决？

答案1

您应该通过运行来确认这一点

file /usr/local/nz/bin/nzsql

但您的 netazza 应用程序很可能是 x86-64（即 64 位）安装上的 32 位应用程序；您将需要安装 32 位版本的 libcomerr2，如下所示：

sudo apt install libcomerr2:i386

以及它所依赖的任何其他系统库。

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