MySQL installation has been stuck here for a long time. Do you think it has crashed and the program has been installed incorrectly? If you are smart, you may have discovered that MYSQL has actually been installed successfully and it will be fine after a while, but do you know the reason? Haha, let me tell you "This is caused by mysql's self-compilation and testing"
make[2]: Entering directory `/down/webinstall/mysql-5.1.57/mysql-test
make[3]: Entering directory `/down /webinstall/mysql-5.1.57/mysql-test
make[3]: Nothing to be done for `install-exec-am.
make INSTALL_TO_DIR="/usr/local/mysql/mysql-test" install_test_files
make[ 4]: Entering directory `/down/webinstall/mysql-5.1.57/mysql-test