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I can Not use the chinese input method, so bad, but I have to memorize some stuff about using ubuntu,
yesterday I found i can not login my ubuntu system, i donnot know why ,so search any Q/A in website, some advice listed:
1. environment is wrong, directory in etc/profile, etc/env, etc/bashrc
2.system disk is full
I am pretty sure my question is 2. so i went to recovery mode to check my diskspace,but under root user any file and command can not use, file is readonly ,command no authority,fuck.so search website again , oh ,god there is a command can change this:"mount -o remount, rw /",now i can use everything
second, where to found my big file which stuck the whole memory, just cd /
df
ls -l
and i found directory /var/log/cups is so so big,
so i use rm to del these log files .and then i can login my ubuntu again ,till now ,I made it .
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原文地址：http://my.oschina.net/yusi/blog/470524
