????linux??????????
????linux??????????????畏??????????????????????????????????
??????????????????????????
???????linux????????????a??????锟�??????校?kernel ?? lib ??application
????kernel?????????????????????????????????????????????????????????glibc
?????? ????????????????????????????????????????贸??????????????????????巍?
????????????????????卸??????????????????????????????????????些????????????????????????????????????械?????????????????????????
????application:?????????????????????
????????linux???????????????????????????睢�
????????????????
???????????????效???????????????????小?????????????
????????????????效?????????????????????????
????linux???????
????????????????????????????????????????????????????????椤�?????????????????????椤�????.ko??尾???????ko??kernel object?? ???????????????share object????.so??尾
????????????????卸??
??????????????
????1???????????/boot/vmlinuz-version-release
????2: ???????? /lib/modules/version-release
????ramdisk: ??????????????????械?mbr??????妫�????????????????????grub??????grub?????
???????????????????????
????post –> bios –> bootloader(???????????????) –> mbr –> ????stage2?械?grub —> kernel –> init
????post?? poweron self test  ??????????????????????rom芯???????濉om芯??????械?cmos??
????bios : base input output system. ??????rom?械????????????????????????????????????????????璞�????写??bootloader???璞�??
????mbr:??????????璞�??????mbr?????械?stage1????????stage2??位??????????stage1_5??????校????stage2????????璞�?????????????????????????stage2?????????grub??
????grub: grand uniform bootloader ????????????grub?????????????????????????????????kernel??
????kernel?? kernel?????????泻?????????????????????????????????????????????????????????????????init?????
??????????????????????????渭????????????????