请问如何从10.1c升级到10.1o呢？

ts305

可以通过网络升级吗？
下面这些话没有说10.1c怎么办，我试了一下，没有成功，说找不到hdlist。

Mandrakelinux 10.1 (with 35MB updates):

No matter how you've installed your Mandrakelinux 10.1 Official, you may:
# rm -rf /var/lib/urpmi/*
# urpmi.addmedia --distrib ftp://202.38.75.11/FreeOS/Mandrakelinux/official/10.1/i586/
# urpmi.addmedia updates ftp://202.38.75.11/FreeOS/Mandra ... /10.1/main_updates/

After that, your daily work is:
# urpmi.update updates
# urpmi --auto-select
(Remember to keep an eye on http://www.mandrakesoft.com/security/advisories?dis=10.1)

If you are to have a fresh installation, please choose "Specify the mirror manually"
when you are asked "lease select a medium from the list below":
    FTP server: 202.38.75.11
    Mandrake Linux directory: /FreeOS/Mandrakelinux/official/10.1/i586/

ts305

有人知道怎么办吗？