降级内核

是个人版本V20的系统，设置系统更新的，降级到那个内核，现在内核是5.45也不高啊

本来是可以的，我可能手残唉，到现在还没有解决呢

能否详细说明3.20安装的详细过程。3.20我安装不进去，老说缺什么依赖就不会安了，你想能不能详细说一下安装过程在这里先谢了。

我的也不知道怎么安装的，现在驱动也没有，打印机出错误，着急解决，原来默认的打印机可以直接打的

INSTALL MISSING REQUIRED DEPENDENCIES
-------------------------------------
note: Installation of dependencies requires an active internet connection.
warning: Missing REQUIRED dependency: cups-devel (CUPS devel- Common Unix Printing System development files)
warning: This installer cannot install 'cups-devel' for your distro/OS and/or version.
error: Installation cannot continue without this dependency. Please manually install this dependency and re-run this installer.

更新后是5.4.70,原来是50

安装出错信息里显示缺少一个软件包, cups-devel. 这个名称是RHEL/CentOS发行版的.  在深度, Debian版上, 这个软件包的名称是libcups2-dev.

安装libcups2-dev以后再试试安装HP的软件包.

sudo apt install libcups2-dev

安装那个后再安装又出现问题
INSTALL MISSING REQUIRED DEPENDENCIES
-------------------------------------
note: Installation of dependencies requires an active internet connection.
warning: Missing REQUIRED dependency: libusb (libusb - USB library)
warning: This installer cannot install 'libusb' for your distro/OS and/or version.
error: Installation cannot continue without this dependency. Please manually install this dependency and re-run this installer.

试试安装libusb-dev

如果深度自带hplip支持打印机, 没有必要再手动更新hplip.

被我不知道怎么弄的弄得不行了

note: Installation of dependencies requires an active internet connection.
warning: Missing REQUIRED dependency: libnetsnmp-devel (libnetsnmp-devel - SNMP networking library development files)
warning: This installer cannot install 'libnetsnmp-devel' for your distro/OS and/or version.
error: Installation cannot continue without this dependency. Please manually install this dependency and re-run this installer.

本人小白一个，前两天刚折腾一遍hplip的最新版，各种百度和谷歌还是失败没成功，提示各种依赖缺失，用新立德搜索缺失的软件包盲狙添加，最后提示pytq5没有安装怎么也不成功，最后放弃，从命令提示行里删除holip，再安装官方源的3.18.12，用打印管理器添加打印机。楼主你要是成功了请分享下经验。

官方3.18.12那个包从那下载

感谢删除后，自动联网下载驱动了，可以正常打印了