On Fri, Jun 05, 2020 at 01:05:35PM +0200, Corentin Labbe wrote:
> Hello
>
> For reinstalling an old SPARC machine , I need a netboot image.
> I tried to create it via make tftpboot.img but got:
> BUILD: sparc to /home/compile/crossbuild/next/sparc/sparc64/defconfig
> make[1]: Entering directory '/usr/src/crossbuild/next/sparc/sparc64/defconfig'
> GEN Makefile
> scripts/kconfig/conf --syncconfig Kconfig
> GEN Makefile
> CALL /linux-next/scripts/atomic/check-atomics.sh
> CALL /linux-next/scripts/checksyscalls.sh
> <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
> CHK include/generated/compile.h
> GZIP kernel/config_data.gz
> CC kernel/configs.o
> AR kernel/built-in.a
> GEN .version
> CHK include/generated/compile.h
> UPD include/generated/compile.h
> CC init/version.o
> AR init/built-in.a
> LD vmlinux.o
> MODPOST vmlinux.symvers
> WARNING: modpost: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
> MODINFO modules.builtin.modinfo
> GEN modules.builtin
> LD .tmp_vmlinux.kallsyms1
> KSYM .tmp_vmlinux.kallsyms1.o
> LD .tmp_vmlinux.kallsyms2
> KSYM .tmp_vmlinux.kallsyms2.o
> LD vmlinux
> SYSMAP System.map
> MODPOST Module.symvers
> STRIP arch/sparc/boot/image
> kernel: arch/sparc/boot/image is ready
> ELFTOAOUT arch/sparc/boot/tftpboot.img
> PT 0 Entry: Loadable to 0x400000[0x5288d0] from 0x0[0x4ca694] align 0x100000
> PT 1 Entry: Note
> PT 2 Entry: unknown
> PIGGY arch/sparc/boot/tftpboot.img
> lseek: Invalid argument
> make[2]: *** [/linux-next/arch/sparc/boot/Makefile:72: arch/sparc/boot/tftpboot.img] Error 1
> make[2]: *** Deleting file 'arch/sparc/boot/tftpboot.img'
> make[1]: *** [arch/sparc/Makefile:76: tftpboot.img] Error 2
> make[1]: Leaving directory '/usr/src/crossbuild/next/sparc/sparc64/defconfig'
> make: *** [Makefile:185: __sub-make] Error 2
>
> I got this result on both linux-next and 5.6.15
>
> I have straced the process:
> 22495 openat(AT_FDCWD, "arch/sparc/boot/tftpboot.img", O_RDWR) = 3
> 22495 read(3, "\1\3\1\7\0\0\0\0\0Lf\224\0\0\0\0\0\0\0\0\0\0\0\0\0\5\342<\0\0\0\0"..., 512) = 512
> 22495 lseek(3, 0, SEEK_SET) = 0
> 22495 read(3, "\1\3\1\7\0\0\0\0\0Lf\224\0\0\0\0\0\0\0\0\0\0\0\0\0\5\342<\0\0\0\0"..., 1024) = 1024
> 22495 lseek(3, -480, SEEK_SET) = -1 EINVAL (Argument invalide)
> 22495 dup(2) = 4
> 22495 fcntl(4, F_GETFL) = 0x402 (flags O_RDWR|O_APPEND)
> 22495 fstat(4, {st_mode=S_IFCHR|0620, st_rdev=makedev(0x88, 0x1a), ...}) = 0
> 22495 write(4, "lseek: Invalid argument\n", 24) = 24
> 22495 close(4) = 0
>
> Regards
The problem was a too old elftoaout binary.
I will send a patch for printing a better error message.
Regards
