在FC yum update时出现问题．请大侠帮忙看一下！

zhang10369

都是fedora 的系统.现在有三台机器update时出错.　上网也查不出是什么原因.
只能在此发帖求助大家

第一台的错误信息：
--> Populating transaction set with selected packages. Please wait.
---> Package kernel-PAE.i686 0:2.6.17-1.2358.fc6 set to be erased
--> Running transaction check
--> Processing Dependency: libcurl.so.3 for package: php
--> Processing Dependency: libcurl.so.3 for package: php-cli
--> Finished Dependency Resolution
Error: Missing Dependency: libcurl.so.3 is needed by package php
Error: Missing Dependency: libcurl.so.3 is needed by package php-cli


第二台
Error Downloading Packages:
  crash - 4.0-3.3.i386: failure: Fedora/RPMS/crash-4.0-3.3.i386.rpm from development: [Errno 256] No more mirrors to try.

第三台
--> Running transaction check
--> Processing Conflict: hal conflicts kernel < 2.6.17
--> Finished Dependency Resolution
Error: hal conflicts with kernel < 2.6.17

谢谢大家啦！！