NTP升级，升级RedHat时很顺利，升级完成后会默认覆盖掉原有文件，重启服务后，使用ntpd --version查看验证上即可，可在升级SUSE Linux时却发现错误频频，以下是我再升级时遇到的一些问题，小结之后希望有和我遇到同样错误的亲们可以作为参考：
一. 由于NTP包有漏洞，需下载4.2.7之后版本，网络下ntp-dev-4.2.7p26.tar.gz 1.解压 # tar –zxf ntp-dev-4.2.7p26.tar.gz –C /usr/src 2.编译 # cd/usr/src/ntp-dev-4.2.7p26 #./configure --prefix=/usr/local/ntp-dev-4.2.7p26--enable-all-clocks --enable-parse-clocks 如果生成Makefile文件时报错，提示信息为usge –-host skip在./configure 参数后添加--host=x86_64，这个参数（x86_64）来源于uname –m后得出的结果
3. #make 如果make报错，信息如下 ntp_loopfilter.c: In function ‘local_clock’: ntp_loopfilter.c:516: error: ‘MOD_NANO’ undeclared (first use in this function) ntp_loopfilter.c:516: error: (Each undeclaredidentifier is reported only once ntp_loopfilter.c:516: error: for each function itappears in.) make[3]: *** [ntp_loopfilter.o] Error 1 make[3]: Leaving directory`/usr/src/ntp-dev-4.2.7p26/ntpd' make[2]: *** [all] Error 2 make[2]: Leaving directory`/usr/src/ntp-dev-4.2.7p26/ntpd' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/usr/src/ntp-dev-4.2.7p26' make: *** [all] Error 2
解决方法如下： vim include/ntp_syscall.h.patch
--- ntp-4.2.4p7/include/ntp_syscall.h ntp-4.2.4p7/include/ntp_syscall.h @@ -14,5 14,13 @@ #include<sys/timex.h> #endif #if defined(ADJ_NANO) && !defined(MOD_NANO) #define MOD_NANO ADJ_NANO #endif #if defined(ADJ_TAI) && !defined(MOD_TAI) #define MOD_TAI ADJ_TAI #endif #ifndefNTP_SYSCALLS_LIBC #ifdefNTP_SYSCALLS_STD
# cd include # patch -p0 < ntp_syscall.h.patch patch file to:ntp_syscall.h # cd .. # make && make install 编译安装OK 4.生成环境变量 # echo '#ntp seting' >> /etc/profile.local # echo 'export PATH=$PATH:/usr/local/ntp/bin'>> /etc/profile.local #echo /usr/local/ntp/bin/ntpd -c /etc/ntp.conf -p/tmp/ntpd.pid >> /etc/profile.local # source /etc/profile.local 5 验证 # ntpd –version 版本已升级为4.2.7p26
ps:
vim include/ntp_syscall.h.patch ，里的内容有的需要缩进，以#开关内容须缩进
