Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Linux Command Line ½âÎö

0
´¦Àí
Ä£ÐÍ
Linux kernel
µÄÆô¶¯°ü
À¨ºÜ¶à×é¼þµÄ³õʼ»¯ºÍÏà¹ØÅäÖã¬ÕâЩÅäÖòÎÊýÒ»°ãÊÇͨ¹ýcommand line
½ø
ÐÐÅäÖõġ£ÔÚ½øÐкóÐø·ÖÎö֮ǰ£¬ÏÈÀ´Àí½âÒ»ÏÂcommand line
µÄ´¦Àí
Ä£ÐÍ£º
Òª´¦ÀíµÄ¶ÔÏóÊÇÒ»¸ö×Ö·û´®£¬ÆäÖаüº¬Á˸÷ÖÖÅäÖÃÐÅÏ¢£¬Í¨³£¸÷¸öÅäÖÃÖ®¼äͨ¹ý¿Õ¸ñ½øÐзÖÀ룬ÿ¸öÅäÖõıí´ïÐÎʽÊÇ
È磺param=value1,value2
»òÕߺܼòµ¥¾ÍÊÇÒ»¸örw
¡£
ÄÇôkernel
¾ÍÐèÒªÌṩ¶ÔÕâЩ
²ÎÊý½øÐд¦ÀíµÄ´¦Àíº¯ÊýÁÐ±í¡£¸ù¾Ý²ÎÊýµÄ×÷ÓÃÒÔ¼°Ö´ÐÐÆÚµÄÏȺó²»Í¬£¬ÕâЩ´¦Àíº¯Êý±»¶¨Òåµ½²»Í¬µÄ¶ÎÖС£Õë¶Ôÿһ¸ö²ÎÊý£¬Kernel
¶¼»áµ½ÏàÓ¦µÄ¶ÎÖвéÕÒÏàÓ¦µÄ´¦Àíº¯Êý£¬×îÖÕ½øÐи÷¸ö×é¼þµÄÅäÖá£
1
ÅäÖÃ
¸ñʽ
³£¼ûµÄÅäÖøñʽÈ磺
 
console=ttySAC0,115200 root=nfs nfsroot=192.168.1.9:/source/rootfs
initrd=0x10800000,0x14af47
 
2
ÅäÖÃ
·½Ê½
2.1 Bootloader
¶¯
̬ÅäÖÃ
ÓÉbootloader
½øÐвÎÊýÅä
Öã¬command line
½«×öΪatag_list
µÄÒ»¸ö½Úµã´«µÝµ½Kernel
¡£
2.2 Kernel
¾²Ì¬ÅäÖÃ
ͨ¹ýmake menuconfig
½ø
ÐÐÅäÖãºÔËÐкóÅäÖÃboot options->Default kernel
command string
¡£¸ÃÅäÖý«±»¾²Ì¬±àÒëµ½Kernel
ÖУ¬
ͨ¹ý±äÁ¿default_command_line
·ÃÎÊ¡£

½â
ÎöÅäÖÃ
3.1
Ïà¹Ø¶¨Òå
¸ù¾ÝÖ´ÐеÄÏȺó˳Ðò£¬¿ÉÒÔ½«´¦Àíº¯Êý·ÖΪÈý¸ö´óÀ࣬ËûÃÇ·Ö±ð´æÔÚÓÚÏÂÃæÈý¸ö¶ÎÖУ¨²Î¿¼top/arch/arm/kernel/vmlinux.lds
£©:
 
__setup_start = .; *(.init.setup) __setup_end = .;
 
__early_begin = .; *(.early_param.init) __early_end = .;
 
__start___param = .; *(__param) __stop___param = .;
 
Õâ
Èý¸ö¶ÎÄÚ´æ´¢µÄ²»ÊDzÎÊý£¬¶øÊÇcommand line
²ÎÊýËùÐèÒªµÄ´¦Àíº¯
Êý¡£
3.1.1
.early_param.init
¶Î
“.early_param.init

Ëù¶¨ÒåµÄ´¦ÀíÏà¶Ô¿¿Ç°Ò»Ð©£¬ËüËù´¦ÀíµÄ²ÎÊýÀýÈ磺initrd=
£¬cachepolicy=
£¬nocache
£¬ nowb
£¬ ecc=
£¬ vmalloc=
£¬
mem=
£¬µÈµÈ¡£
ÕâЩ´¦Àíº¯ÊýÊÇͨ¹ý__early_param
ºê
À´¶¨ÒåµÄ£¬ÀýÈ磺
static void __init early_initrd(char **p)
{
…… }
__early_param("initrd=", early_initrd);
¶ÔÓÚºê__early_param
£¬
¿ÉÒÔÔÚtop/arch/arm/include/asm/Setup.h
ÖÐ
ÕÒµ½Èç϶¨Ò壺
 
struct early_params {
    const char
*arg;
   &n


Ïà¹ØÎĵµ£º

LINUXÏÂÐÂÓ²Å̹ÒÔØ

¹ØÓÚÐÂÓ²Å̵ĹÒÔØÖ÷ÒªÓм¸¸ö²½×ࣺ£¨ÎÒÓõÄÊÇUbuntu9.10£©
Ò».Ê×ÏȲ鿴×Ô¼ºµÄÉ豸£¬ÓÃÃüÁî fdisk -l
   youlong@ubuntu:~$ sudo fdisk -l
   Disk /dev/sda: 10.7 GB, 10737418240 bytes
   255 heads, 63 sectors/track, 1305 cylinders
   Units = cylinders of 16065 * 51 ......

ÔÚARM LinuxÉÏʹÓÃOpenGL

ÏÈÈ«¾Ö½éÉÜÏ£¬Ê×ÏÈ£¬Ê²Ã´ÊÇOpenGLºÍOpenGL|ES¡£OpenGLÊÇÒ»Ì×»æÍ¼º¯ÊýµÄ±ê×¼£¬OpenGL|ESÊÇOpenGLÖÐÕë¶ÔǶÈëʽϵͳµÄÒ»Ì׺¯Êý×Ó¼¯¡£OpenGL|ESµÄ¹Ù·½ÊÇhttp://www.khronos.org/opengles/£¬ÉÏÃæÓиü¶àµÄÐÅÏ¢¡£ÐèҪעÒâµÄÊÇ£¬OpenGL½ö½öÊDZê×¼£¬¶øÈç¹ûÄãҪʹÓÃOpenGL£¬ÔòÐèÒªÕÒµ½¿ÉÒÔʵÏÖÕâЩOpenGL±ê×¼º¯ÊýµÄ³ÌÐò¿â»òÔ´´úÂë¡£Ä ......

linux ÏÂracµÄ°²×°

   LinuxÏÂracµÄ°²×°
1£¬»·¾³×¼±¸
 192.168.5.10  rac1
 192.168.5.100 prac1
 10.20.0.10 vrac1
 192.168.5.20 rac2
 192.168.5.200 prac2
 10.20.0.20 vrac2
2.Íø¿¨ÉèÖÃǰÌáÊÇÁ½¿éÍø¿¨
 cd /etc/sysconfig/network-scripts
& ......

Linux SSHÃüÁî´óÈ«

http://hugege.com/2009/06/24/linux-ssh/
Linux SSHÃüÁî´óÈ«
rm
-rf mydir /* ɾ³ýmydirĿ¼ */
cd mydir /* ½øÈëmydirĿ¼ */
cd – /*
»ØÉÏÒ»¼¶Ä¿Â¼ */
cd ~ /* »Ø¸ùĿ¼ */
mv tools tool /* °ÑtoolsĿ¼¸ÄÃûΪtool */
ln -s tool bac
/*
¸øtoolĿ¼´´½¨ÃûΪbacµÄ·ûºÅÁ´½Ó,×îÊìϤµÄÓ¦¸Ã¾ÍÊÇFTP ......

linux×Ô¶¯Æô¶¯ÊسÌÉèÖÃ

aep1000
Ö§³Ö¿ìËÙ¼ÓÃÜ´¦Àí¿¨ÒÔ¼ÓËÙ°²È«Ì×½Ó×ֲ㣨SSL£©¼ÓÃÜ£¬ÔÚ±¾ÊéÖв»ÓÃÓÚ½¨Á¢¼¯Èº¡£
anacron
ÓëcronºÍatÀàËÆ£¬¶¼ÊÇÔÚÌØ¶¨Ê±¼ä¡¢ÉõÖÁÔÚϵͳûÓÐÁ¬ÐøÔËÐÐʱÆô¶¯ÃüÁîµÄ£¬ÔÚRed HatÉÏ£¬/etc/anacrontabÎļþÁгöÁËÿÌìÖ´ÐеÄcron×÷ÒµµÄÑ­»·³£¹æÈÕÖ¾£¬Èç¹ûÄã½ûÓÃÁËËü£¬Ä㽫²»ÄÜÔÙÖ´ÐÐÈÕ־ѭ»·£¬ÄãµÄϵͳ´ÅÅÌ×îºó½«±»ÌîÂú£¬Ô ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ