为什么会有这个提示:
Setting up Update Process
Setting up repositories
ftp://emos:linuxfly@emos.linuxfl ... epodata/repomd.xml: [Errno 4] IOError: [Errno ftp error] timed out
Trying other mirror.
Cannot open/read repomd.xml file for repository: EMOS-OS
failure: repodata/repomd.xml from EMOS-OS: [Errno 256] No more mirrors to try.
Error: failure: repodata/repomd.xml from EMOS-OS: [Errno 256] No more mirrors to try.