Initramfs is the new way of doing stuff before the root partition is mounted. This is useful if you need to do something special to get your root partition visible to the kernel. For example, if it is an lvm partition, encrypted or on USB. You can a
linux内核配置文件说明参考 中英文说明 如： Kernel->user space relay support (formerly relayfs) 在某些文件系统上(比如debugfs)提供从内核空间向用户空间传递大量数据的接口 Initramfs source file(s) initrd已经被initramfs取代,如果你不明白这是什么意思,请保持空白 Optimize for size (Look out for broken compilers!) 编译时优化内核尺寸(使用
