怎样更改routeros默认的shell?

wsgtrsys

routeros是一种强大的路由软件,基于linux开发.它在启动的时候能自动认识硬件设备并驱动它.routeros使用了自己的ash这个shell,这个shell只能支持特定的命令,可是我想在其中运行linux命令就不行了.

于是我想怎样用我自己的shell去替换它默认的shell?是更改它的getty吗?或者,请高手指教!
其网站地址 :
http://www.mikrotik.com/

附启动时各脚本文件:
inittab

1. id:3:initdefault:
   
2. 
   
3. # System initialization.
   
4. si::sysinit:/etc/rc.d/rc.sysinit
   
5. 
   
6. # halt
   
7. l0:0:wait:/etc/rc.d/rc.halt
   
8. # starting
   
9. l3:3:wait:/etc/rc.d/rc.start
   
10. # rebooting
    
11. l6:6:wait:/etc/rc.d/rc.reboot
    
12. 
    
13. # Things to run in every runlevel.
    
14. ud::once:/sbin/update
    
15. 
    
16. # Trap CTRL-ALT-DELETE
    
17. ca::ctrlaltdel:/sbin/shutdown -t3 -r now
    
18. 
    
19. # Consoles
    
20. 1:3:respawn:/sbin/getty 38400 tty1
    
21. 2:3:respawn:/sbin/getty 38400 tty2
    
22. # Serial lines
    
23. #s1:3:respawn:/sbin/getty -L 9600 ttyS0 vt100

复制代码

rc.sysinit

1. #!/bin/bash
   
2. #
   
3. # /etc/rc.d/rc.sysinit - run once at boot time
   
4. #
   
5. 
   
6. # Set the hostname.
   
7. /bin/hostname localhost
   
8. 
   
9. /sbin/fsck -v -T -A -R -y >/dev/null 2>&1
   
10. 
    
11. CHECK=no
    
12. FSCK_ARGS=
    
13. 
    
14. if [ -f /.fsck ]; then
    
15.    CHECK=yes
    
16.    FSCK_ARGS=-f
    
17. elif ! /sbin/diskman --big-disk; then
    
18.    CHECK=yes
    
19. elif [ ! -f /.asked ]; then
    
20.    echo
    
21.    echo "It is recomended to check your disk drive for errors,"
    
22.    echo "but it may take a while (~1min for 1Gb)."
    
23.    echo "It can be done later with "/system check-disk"."
    
24.    if /bin/ask -t 10 "Do you want to do it now?"; then CHECK=yes; fi
    
25.    echo
    
26. fi
    
27. 
    
28. RC=
    
29. if [ "$CHECK" = "yes" ]; then
    
30.    echo "Checking disk integrity..."
    
31.    /sbin/fsck $FSCK_ARGS -v -T -y / >/dev/null 2>&1
    
32.    RC=$?
    
33. elif [ ! -f /.nofsck ]; then
    
34.    echo "Doing full check..."
    
35.    /sbin/fsck -v -T -p -y / >dev/null 2>&1
    
36.    RC=$?
    
37. fi
    
38. 
    
39. if [ "$RC" = "" ]; then
    
40.    echo -n
    
41. elif [ $RC -eq 0 ]; then
    
42.    echo "No errors found."
    
43.    echo
    
44. elif [ $RC -eq 1 ] || [ $RC -eq 2 ] || [ $RC -eq 3 ]; then
    
45.    echo "Found errors, corrected."
    
46.    kill -INT 1
    
47.    exit 1
    
48. else
    
49.    echo "ERROR: Your disk file system is corrupted!"
    
50.    echo "Please, reinstall your router"
    
51.    kill -WINCH 1
    
52.    exit 1
    
53. fi
    
54. 
    
55. # Remount the root filesystem read-write.
    
56. echo "Remounting root filesystem in read-write mode." >/dev/null
    
57. /bin/mount -n -o remount,rw,noatime /
    
58. rm -f /.fsck
    
59. echo >/.asked
    
60. 
    
61. # Clear mtab
    
62. : >/etc/mtab
    
63. 
    
64. # Enter root into mtab.
    
65. /bin/mount -f /
    
66. 
    
67. # Should be removed later
    
68. /bin/ln -f /etc/ld.so.cache /etc/ld.so.cache.old
    
69. /sbin/ldconfig 2>/dev/null
    
70. 
    
71. # Mount all other filesystems (except for NFS). Contrary to standard usage,
    
72. # filesystems are NOT unmounted in single user mode.
    
73. /bin/mount -a -t nonfs
    
74. /bin/mkdir -p /ram
    
75. /bin/mount -t tmpfs tmpfs /ram
    
76. 
    
77. /sbin/diskman --to-ext3
    
78. 
    
79. # Clean out /etc.
    
80. /bin/rm -f /etc/mtab~ /fastboot /etc/nologin
    
81. /bin/rm -f /var/log/* /var/run/*
    
82. /bin/rm -f /var/lock/*
    
83. : >/var/run/utmp
    
84. 
    
85. #make device nodes that get modified
    
86. /bin/mknod /ram/ptmx c 5 2
    
87. 
    
88. # Cleanup tmp files
    
89. /bin/rm -rf /tmp/*
    
90. 
    
91. # Cleanup core files
    
92. /bin/rm -rf /core
    
93. 
    
94. # Remove unneeded stuff
    
95. rm -f /bin/sh
    
96. 
    
97. # Set the system clock.
    
98. /sbin/hwclock --hctosys --localtime --noadjfile >/dev/null
    
99. /bin/date >/dev/null
    
100. 
     
101. # Turn on routing
     
102. echo "1" >/proc/sys/net/ipv4/ip_forward
     
103. 
     
104. # Set maximum opened file limit
     
105. echo "32768" >/proc/sys/fs/file-max
     
106. 
     
107. if [ ! -f /nova/etc/logo ]; then
     
108. cp /nova/etc/logo.org /nova/etc/logo
     
109. fi
     
110. /nova/bin/mkissue /etc/issue
     
111. if [ ! -f /nova/etc/url ]; then
     
112. cp /nova/etc/url.org /nova/etc/url
     
113. fi
     
114. if [ ! -f /home/web/index2.html ]; then
     
115. cp /home/web/index2.html.org /home/web/index2.html
     
116. fi
     
117. if [ ! -f /nova/lib/console/logo.txt ]; then
     
118. cp /nova/lib/console/logo.txt.org /nova/lib/console/logo.txt
     
119. fi
     
120. 
     
121. if [ ! -f /etc/issue ]; then
     
122. /nova/bin/mkissue /etc/issue
     
123. fi
     
124. 
     
125. # set hostname
     
126. if [ ! -f /etc/ident ]; then
     
127. echo -n $(cat /nova/etc/logo) >>/etc/ident
     
128. fi
     
129. 
     
130. hostname "$(cat /etc/ident)"
     
131. 
     
132. # fix some perms
     
133. chmod a+x /var
     
134. chmod a+x /var/pdb
     
135. chmod a+x /var/pdb/system
     
136. 
     
137. exit 0

复制代码

kiron

用whereis ash得到ash的绝对路径，并把它当成用户的主shell
修改/etc/passwd文件，把对应用户记录的最后一项更改为ash的路径

wsgtrsys

passwd文件内容为：

1. nobody:*:99:99:nobody:/tmp:/bin/sh
   
2. root::0:0:root:/home/root:/bin/sh

复制代码

看来routeros使用的是一个所谓的它自己开发的sh ,不是标准的sh吧。

我需要编译一个sh安装到系统中吗？

kiron

是的，从你的介绍来看，是它自己开发的shell
你把ash的绝对路径代替上面的/bin/sh就可以了

nait

把/bin/sh链接到你的shell不就行了

wsgtrsys

问题是我没有它的源代码，不知道它用哪个版本的glibc,难道要用静态编译一个shell?

kiron

Post by nait
把/bin/sh链接到你的shell不就行了

那别人还怎么用/bin/sh？

nait

Post by kiron
那别人还怎么用/bin/sh？

哦,是了
我一向是一个人独占自己的pc的