如果大家按照作者的详细步骤操作时出现如下之类的问题： warning: No executable has been specified and target does not support determining executable automatically. Try using the "file" command. /etc/gdb/gdbinit:3: Error in sourced command file: Remote 'g' packet reply is too long (expected 308 bytes, got 608 bytes): 0000000000000000685301020080ffff0000000000000000ac2d00020080fffffe000000000000000000000000000000b0ff08000080ffff88ff08000080ffffff0000000000000000000000000000000000000000000000b025010000000000000000000000000000000000000000000000000000000000685301020080ffffe52d00020080ffff4600200008000000100000001000 这个问题是GDB调试64位Kernel时才有的，解决的方法是在进行gdb操作前先在(gdb)后面执行如下语句： (gdb) set architecture i386:x86-64:intel (gdb) target remote:1234 Remote debugging using :1234 (gdb) symbol-file Cosmos/build/Cosmos.elf Reading symbols from Cosmos/build/Cosmos.elf... (gdb) b *0x04000000 Breakpoint 1 at 0x4000000 (gdb) b *0x04000068 Breakpoint 3 at 0x4000068 (gdb) c Continuing. 玩吧！