5-2.Make the file systems  1. Build the filesystems to target directory   $cd /mnt/target1   $mkdir -p bin dev home lib mnt proc sbin usr boot etc root tmp var   $cd var   $mkdir -p lock log run spool   $cd ../usr   $mkdir -p bin include lib local sbin share src   $cd share   $mkdir -p man   $cd man   $mkdir -p man1 man2 man3 man4 man5 man6 man7 man8 man9   $cd ../..   $ln -s share/man man