sudo make modules_install error

[zhanggenex]

make -C /lib/modules/uname -r/build M=pwd modules_install
make[1]: Entering directory '/usr/src/linux-headers-4.10.0-19-generic'
INSTALL /home/zhanggen/simple-pt/simple-pt.ko
At main.c:158:
** - SSL error:02001002:system library:fopen:No such file or directory: bss_file.c:175

• SSL error:2006D080:BIO routines:BIO_new_file:no such file: bss_file.c:178**
  sign-file: certs/signing_key.pem: No such file or directory
  INSTALL /home/zhanggen/simple-pt/test-ftrace.ko
  At main.c:158:
  **- SSL error:02001002:system library:fopen:No such file or directory: bss_file.c:175
• SSL error:2006D080:BIO routines:BIO_new_file:no such file: bss_file.c:178**
  sign-file: certs/signing_key.pem: No such file or directory
  DEPMOD 4.10.0-19-generic
  make[1]: Leaving directory '/usr/src/linux-headers-4.10.0-19-generic'

[andikleen]

It's some generic problem with your kernel build setup is missing the keys to sign modules.
Not simple-pt specific.

I don't use module signing myself so I don't know what could be wrong.

You could rebuild your kernel without CONFIG_MODULE_SIG, or somehow install the missing keys