1. UnicodeDecodeError: ‘ascii‘ codec can‘t decode byte 0xbc in position 3746: ordinal not in range(128)

解决：

1. cd /var/lib/rpm/

2. rm -i __db.*

3. yum clean all

4. yum history new

yum报错：UnicodeDecodeError: 'ascii' codec can't decode byte 0xbc