如何编译Linux内核rpm包

第第页如何编译Linux内核rpm包

五、设置默认启动的内核

首先，查看系统安装的全部内核：

grubby--info=ALL执行结果如下：

[root@localhost~]#grubby--info=ALLindex=0kernel="/boot/vmlinuz-6.3.0_20230506"args="rocrashkernel=512Mrhgbquietintermap=oniommu=ptconsole=ttyS0,115200console=ttyS1,115200（intel）_iommu=onpci=reallocdefault_hugepagesz=1Ghugepagesz=1Ghugepages=16hugepagesz=2Mhugepages=1375isol（cpu）s=1,3,5,7,9,11,13,17nohz_full=1,3,5,7,9,11,13,17rcu_nocbs=1,3,5,7,9,11,13,17$tuned_pa（ram）s"root="/dev/mapper/bel-root"initrd="/boot/initramfs-6.3.0_20230506.img$tuned_initrd"title="BigCloudEnterpriseLinux(6.3.0_20230506)8.2(Core)"id="613790481f5a48e0b1608a83a3c399f7-6.3.0_20230506"index=1kernel="/boot/vmlinuz-6.3.0-rc7+"args="rocrashkernel=512Mrhgbquietintermap=oniommu=ptconsole=ttyS0,115200console=ttyS1,115200intel_iommu=onpci=reallocdefault_hugepagesz=1Ghugepagesz=1Ghugepages=16hugepagesz=2Mhugepages=1375isolcpus=1,3,5,7,9,11,13,17nohz_full=1,3,5,7,9,11,13,17rcu_nocbs=1,3,5,7,9,11,13,17$tuned_params"root="/dev/mapper/bel-root"initrd="/boot/initramfs-6.3.0-rc7+.img$tuned_initrd"title="BigCloudEnterpriseLinux(6.3.0-rc7+)8.2(Core)"id="613790481f5a48e0b1608a83a3c399f7-6.3.0-rc7+"index=2kernel="/boot/vmlinuz-6.3.0+"args="rocrashkernel=512Mrhgbquietintermap=oniommu=ptconsole=ttyS0,115200console=ttyS1,115200intel_iommu=onpci=reallocdefault_hugepagesz=1Ghugepagesz=1Ghugepages=16hugepagesz=2Mhugepages=1375isolcpus=1,3,5,7,9,11,13,17nohz_full=1,3,5,7,9,11,13,17rcu_nocbs=1,3,5,7,9,11,13,17$tuned_params"root="/dev/mapper/bel-root"initrd="/boot/initramfs-6.3.0+.img$tuned_initrd"title="BigCloudEnterpriseLinux(6.3.0+)8.2(Core)"id="613790481f5a48e0b1608a83a3c399f7-6.3.0+"index=3kernel="/boot/vmlinuz-6.2.0-rc5+"args="rocrashkernel=512Mrhgbquietintermap=oniommu=ptconsole=ttyS0,115200console=ttyS1,115200intel_iommu=onpci=reallocdefault_hugepagesz=1Ghugepagesz=1Ghugepages=16hugepagesz=2Mhugepages=1375isolcpus=1,3,5,7,9,11,13,17nohz_full=1,3,5,7,9,11,13,17rcu_nocbs=1,3,5,7,9,11,13,17$tuned_params"root="/dev/mapper/bel-root"initrd="/boot/initramfs-6.2.0-rc5+.img$tuned_initrd"title="BigCloudEnterpriseLinux(6.2.0-rc5+)8.2(Core)"id="613790481f5a48e0b1608a83a3c399f7-6.2.0-rc5+"index=4kernel="/boot/vmlinuz-5.4.240-1.el8.elrepo.x86_64"args="rocrashkernel=512Mrhgbquietintermap=oniommu=ptconsole=ttyS0,115200console=ttyS1,115200intel_iommu=onpci=reallocdefault_hugepagesz=1Ghugepagesz=1Ghugepages=16hugepagesz=2Mhugepages=1375isolcpus=1,3,5,7,9,11,13,17nohz_full=1,3,5,7,9,11,13,17rcu_nocbs=1,3,5,7,9,11,13,17$tuned_params"root="/dev/mapper/bel-root"initrd="/boot/initramfs-5.4.240-1.el8.elrepo.x86_64.img$tuned_initrd"title="EnterpriseLinux(5.4.240-1.el8.elrepo.x86_64)8.7"id="613790481f5a48e0b1608a83a3c399f7-5.4.240-1.el8.elrepo.x86_64"index=5kernel="/boot/vmlinuz-5.4.67-300.el8.bclinux.x86_64"args="rocrashkernel=512Mrhgbquietintermap=oniommu=ptconsole=ttyS0,115200console=ttyS1,115200intel_iommu=onpci=reallocdefault_hugepagesz=1Ghugepagesz=1Ghugepages=16hugepagesz=2Mhugepages=1375isolcpus=1,3,5,7,9,11,13,17nohz_full=1,3,5,7,9,11,13,17rcu_nocbs=1,3,5,7,9,11,13,17$tuned_params"root="/dev/mapper/bel-root"initrd="/boot/initramfs-5.4.67-300.el8.bclinux.x86_64.img$tuned_initrd"title="BigCloudEnterpriseLinux(5.4.67-300.el8.bclinux.x86_64)8.1(Core)"id="613790481f5a48e0b1608a83a3c399f7-5.4.67-300.el8.bclinux.x86_64"index=6kernel="/boot/vmlinuz-4.19.0-240.23.18.el8_2.bclinux.x86_64"args="rocrashkernel=512Mrhgbquietintermap=oniommu=ptconsole=ttyS0,115200console=ttyS1,115200intel_iommu=onpci=reallocdefault_hugepagesz=1Ghugepagesz=1Ghugepages=16hugepagesz=2Mhugepages=1375isolcpus=1,3,5,7,9,11,13,17nohz_full=1,3,5,7,9,11,13,17rcu_nocbs=1,3,5,7,9,11,13,17$tuned_params"root="/dev/mapper/bel-root"initrd="/boot/initramfs-4.19.0-240.23.18.el8_2.bclinux.x86_64.img$tuned_initrd"title="BigCloudEnterpriseLinux(4.19.0-240.23.18.el8_2.bclinux.x86_64)8.2(Core)"id="613790481f5a48e0b1608a83a3c399f7-4.19.0-240.23.18.el8_2.bclinux.x86_64"index=7kernel="/boot/vmlinuz-4.19.0-240.23.11.el8_2.bclinux.x86_64"args="rocrashkernel=512Mrhgbquietintermap=oniommu=ptconsole=ttyS0,115200console=ttyS1,115200intel_iommu=onpci=reallocdefault_hugepagesz=1Ghugepagesz=1Ghugepages=16hugepagesz=2Mhugepages=1375isolcpus=1,3,5,7,9,11,13,17nohz_full=1,3,5,7,9,11,13,17rcu_nocbs=1,3,5,7,9,11,13,17$tuned_params"root="/dev/mapper/bel-root"initrd="/boot/initramfs-4.19.0-240.23.11.el8_2.bclinux.x86_64.img$tuned_initrd"title="BigCloudEnterpriseLinux(4.19.0-240.23.11.el8_2.bclinux.x86_64)8.2(Core)"id="613790481f5a48e0b1608a83a3c399f7-4.19.0-240.23.11.el8_2.bclinux.x86_64"index=8kernel="/boot/vmlinuz-0-rescue-613790481f5a48e0b1608a83a3c399f7"args="rocrashkernel=512Mrhgbquietintermap=oniommu=ptconsole=ttyS0,115200console=ttyS1,115200intel_iommu=onpci=reallocdefault_hugepagesz=1Ghugepagesz=1Ghugepages=16hugepagesz=2Mhugepages=1375isolcpus=1,3,5,7,9,11,13,17nohz_full=1,3,5,7,9,11,13,17rcu_nocbs=1,3,5,7,9,11,13,17"root="/dev/mapper/bel-root"initrd="/boot/initramfs-0-rescue-613790481f5a48e0b1608a83a3c399f7.img"title="BigCloudEnterpriseLinux(0-rescue-613790481f5a48e0b1608a83a3c399f7)8.1(Core)"id="613790481f5a48e0b1608a83a3c399f7-0-rescue"设置新的默认启动内核，方法如下：

#方法一：使用路径来指定内核，可以使用--set-default=kernel-path[root@localhost~]#grubby--set-default=/boot/vmlinuz-6.3.0+...[root@localhost~]#grubby--default-kernel/boot/vmlinuz-6.3.0+#方法二：使用index来指定内核，则使用--set-default-index=entry-index[root@localhost~]#grubby--set-default-index=2...[root@local