yum update不了 - Linux

裝了fedora...可是package都不能用yum
沒有repos.d folder why?

[root@Linux25 etc]# yum update
Gathering header information file(s) from server(s)
Server: Fedora Core 1 - i386 - Base
retrygrab() failed for:
ftp://apt.nc.hcc.edu.tw/pub/fedora/linux/core/1/i386/os/headers/header.info
Executing failover method
failover: out of servers to try
Error getting file ftp://apt.nc.hcc.edu.tw/pub/fedora/linux/core/1/i386/os/headers/header.info
[Errno 4] IOError: [Errno ftp error] 550 Failed to change directory.

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