LFS Charter 8.3 ver8.4 make defconfig

zoopi · 11-10-2019, 02:39 PM

I am now in chapter 8.4 of Linux for scratch ver8.4, when I try to enter a command "make defconfig, an error

Code:

HOSTCC  scripts/basic/fixdep
/mnt/lfs/tools/bin/../lib/gcc/x86_64-pc-linux-gnu/8.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find crt1.o: No such file or directory
/mnt/lfs/tools/bin/../lib/gcc/x86_64-pc-linux-gnu/8.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find crti.o: No such file or directory
/mnt/lfs/tools/bin/../lib/gcc/x86_64-pc-linux-gnu/8.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lgcc_s
/mnt/lfs/tools/bin/../lib/gcc/x86_64-pc-linux-gnu/8.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lc
/mnt/lfs/tools/bin/../lib/gcc/x86_64-pc-linux-gnu/8.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lgcc_s
/mnt/lfs/tools/bin/../lib/gcc/x86_64-pc-linux-gnu/8.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find crtn.o: No such file or directory
collect2: error: ld returned 1 exit status
make[1]: *** [scripts/Makefile.host:90: scripts/basic/fixdep] Error 1
make: *** [Makefile:476: scripts_basic] Error 2
bash-5.0#

how to fix?

if you enter d chroot and execute the command, then exit

Code:

(lfs chroot) root:/sources/linux-5.0.1# make defconfig
  HOSTCC  scripts/basic/fixdep
/usr/libexec/gcc/x86_64-pc-linux-gnu/8.3.0/cc1: error while loading shared libraries: libmpc.so.3: cannot open shared object file: No such file or directory
make[1]: *** [scripts/Makefile.host:90: scripts/basic/fixdep] Error 1
make: *** [Makefile:476: scripts_basic] Error 2
(lfs chroot) root:/sources/linux-5.0.1#

hazel · 11-11-2019, 07:03 AM

Where did your first output come from? You have to do this in chroot because you can't boot the new system at this stage. Or were you trying to use your host system?

It looks as if gcc can't find libmpc. This is one of the three essential mathematical libraries that gcc uses. They should all have been built and installed in the previous chapter. MPC is installed in 6.19. Please check for it in /usr/lib.

hendrickxm · 11-12-2019, 01:10 AM

I guess you are in 8.3 trying to build the kernel?
Try make menuconfig.

mateomiller002 · 11-12-2019, 01:25 AM

Building the kernel involves a few steps—configuration, compilation, and installation. Read the README file in the kernel source tree for alternative methods to the way this book configures the kernel.

Prepare for compilation by running the following command:make mrproper

Luridis · 11-24-2019, 11:58 PM

Your toolchain may be broken. Building the kernel in chapter 8 needs the fully functional final system toolchain.

/mnt/lfs/tools/bin/../lib/gcc/x86_64-pc-linux-gnu/8.3.0.... etc. etc. etc.

That's part of the temporary toolchain. Either your compiler from chapter 6 hasn't taken over because it's broke, or you forgot-to/didn't-do logout and back in at step 6.79.

Code:

chroot "$LFS" /usr/bin/env -i          \
    HOME=/root TERM="$TERM"            \
    PS1='(lfs chroot) \u:\w\$ '        \
    PATH=/bin:/usr/bin:/sbin:/usr/sbin \
    /bin/bash --login

Notice that there is no reference to /tools/* in the search path for that final chroot. At no point in chapter 7 and onward should you be running anything from /tools. In fact, your best bet is to rm -rf /tools after that last chroot in 6.79.