运行LDD3的例程scull中的scull_load时，出现了很多错误

运行LDD3的例程scull中的scull_load时，出现了很多错误：

awk: 0: unexpected character ‘\’

awk: line 1: syntax error at or near ==

mknod: missing operand after

0'

Try

mknod –help’ for more information.

mknod: missing operand after

1'

Try

mknod –help’ for more information.

mknod: missing operand after

2'

Try

mknod –help’ for more information.

mknod: missing operand after

3'

Try

mknod –help’ for more information.

chgrp: cannot access

/dev/scull[0-3]': No such file or directory

chmod: cannot access

/dev/scull[0-3]’: No such file or directory

mknod: missing operand after

4'

Try

mknod –help’ for more information.

mknod: missing operand after

5'

Try

mknod –help’ for more information.

mknod: missing operand after

6'

Try

mknod –help’ for more information.

mknod: missing operand after

7'

Try

mknod –help’ for more information.

chgrp: cannot access

/dev/scullpipe[0-3]': No such file or directory

chmod: cannot access

/dev/scullpipe[0-3]’: No such file or directory

mknod: missing operand after

8'

Try

mknod –help’ for more information.

chgrp: cannot access

/dev/scullsingle': No such file or directory

chmod: cannot access

/dev/scullsingle’: No such file or directory

mknod: missing operand after

9'

Try

mknod –help’ for more information.

chgrp: cannot access

/dev/sculluid': No such file or directory

chmod: cannot access

/dev/sculluid’: No such file or directory

mknod: missing operand after

10'

Try

mknod –help’ for more information.

chgrp: cannot access

/dev/scullwuid': No such file or directory

chmod: cannot access

/dev/scullwuid’: No such file or directory

mknod: missing operand after

11'

Try

mknod –help’ for more information.

chgrp: cannot access

/dev/scullpriv': No such file or directory

chmod: cannot access

/dev/scullpriv’: No such file or directory

解决办法：

原因：ubuntu里面的awk有点问题

办法：

1）apt-get install gawk

2）将scull_load中的

major=$(awk "\\$2==\"$module\" {print \\$1}" /proc/devices)

改为：

major=$(awk "\$2==\"$module\" {print \$1}" /proc/devices)

之后，再次运行scull_load就可以了。