马春杰杰想切换不同系统内核怎么办？按下面步骤即可：
第一步：查找内核：grep submenu /boot/grub/grub.cfg
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submenu 'Ubuntu 高级选项' $menuentry_id_option 'gnulinux-advanced-3f5e97d5-cd08-4560-94df-613149aac32e' { |
第二步：查找想要使用的内核 grep gnulinux /boot/grub/grub.cfg
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$ grep gnulinux /boot/grub/grub.cfg set default="gnulinux-advanced-3f5e97d5-cd08-4560-94df-613149aac32e>gnulinux-4.4.248-0404248-generic-advanced-3f5e97d5-cd08-4560-94df-613149aac32e" menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-3f5e97d5-cd08-4560-94df-613149aac32e' { submenu 'Ubuntu 高级选项' $menuentry_id_option 'gnulinux-advanced-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu，Linux 4.15.1-041501-lowlatency' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.1-041501-lowlatency-advanced-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu, with Linux 4.15.1-041501-lowlatency (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.1-041501-lowlatency-init-upstart-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu, with Linux 4.15.1-041501-lowlatency (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.1-041501-lowlatency-recovery-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu，Linux 4.15.1-041501-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.1-041501-generic-advanced-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu, with Linux 4.15.1-041501-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.1-041501-generic-init-upstart-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu, with Linux 4.15.1-041501-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.15.1-041501-generic-recovery-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu，Linux 4.4.248-0404248-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.248-0404248-generic-advanced-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu, with Linux 4.4.248-0404248-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.248-0404248-generic-init-upstart-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu, with Linux 4.4.248-0404248-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.248-0404248-generic-recovery-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu，Linux 4.4.0-141-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-141-generic-advanced-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu, with Linux 4.4.0-141-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-141-generic-init-upstart-3f5e97d5-cd08-4560-94df-613149aac32e' { menuentry 'Ubuntu, with Linux 4.4.0-141-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-141-generic-recovery-3f5e97d5-cd08-4560-94df-613149aac32e' { |
选择我们想要切换的内核，这里我选择的为：gnulinux-4.4.248-0404248-generic-advanced-3f5e97d5-cd08-4560-94df-613149aac32e
第三步：修改grub文件，切换内核：vim /etc/default/grub，根据第一步和第二步得到的内核，修改为下面高亮行：
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# If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: # info -f grub -n 'Simple configuration' #GRUB_DEFAULT="gnulinux-advanced-3f5e97d5-cd08-4560-94df-613149aac32e>gnulinux-4.4.0-141-generic-recovery-3f5e97d5-cd08-4560-94df-613149aac32e" #GRUB_DEFAULT="gnulinux-4.4.0-141-generic-recovery-3f5e97d5-cd08-4560-94df-613149aac32e>gnulinux-advanced-3f5e97d5-cd08-4560-94df-613149aac32e" GRUB_DEFAULT="gnulinux-advanced-3f5e97d5-cd08-4560-94df-613149aac32e>gnulinux-4.4.248-0404248-generic-advanced-3f5e97d5-cd08-4560-94df-613149aac32e" GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX="" # Uncomment to enable BadRAM filtering, modify to suit your needs # This works with Linux (no patch required) and with any kernel that obtains # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' #GRUB_GFXMODE=640x480 # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux #GRUB_DISABLE_LINUX_UUID=true # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1" |
第四步：更新grub：sudo update-grub
更新完之后，重启即可。
重启之后检查一下内核：uname -r，可以发现，内核已改。
升级内核：
Ubuntu升级系统内核
由于很多原因，比如兼容更新的驱动程序，需要升级系统内核，下面是步骤，整个步骤还是非常简单的： 转到此处： http://kernel.ubuntu.com/~kernel-ppa/mainline/ ...
时间:2020/12/19 分类:Linux 人气:661 评论:0
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