Linux基础——BCLinuxOE21.10配置默认启动内核

# 查看内核菜单
[root@harbor kernel]# cat /boot/grub2/grub.cfg |grep "menuentry"
if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
  menuentry_id_option=""
export menuentry_id_option
menuentry 'BigCloud Enterprise Linux (4.19.90-2107.6.0.0100.oe1.bclinux.x86_64) 21.10 (LTS-SP2)' --class bigcloud --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-rescue-d24f36113bef4feb89c6b7fe93b524d4-advanced-1624fa73-8ed0-4870-bfc6-d98748252a89' {
menuentry 'BigCloud Enterprise Linux (0-rescue-d24f36113bef4feb89c6b7fe93b524d4) 21.10 (LTS-SP2)' --class bigcloud --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-0-rescue-d24f36113bef4feb89c6b7fe93b524d4-advanced-1624fa73-8ed0-4870-bfc6-d98748252a89' {
# 查看当前内核
[root@harbor kernel]# grub2-editenv list
saved_entry=BigCloud Enterprise Linux (4.19.90-2107.6.0.0100.oe1.bclinux.x86_64) 21.10 (LTS-SP2)
boot_success=0
# 根据grub中的内核条目设置默认启动内核
[root@harbor kernel]# grub2-set-default 'BigCloud Enterprise Linux (4.19.90-2107.6.0.0100.oe1.bclinux.x86_64) 21.10 (LTS-SP2)'
# 重启
[root@harbor kernel]# reboot