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13e1df0928
If the cpio command is not available the error emitted by gen_kheaders.so is not clear as all output of the call to cpio is discarded: GNU make 4.4: GEN kernel/kheaders_data.tar.xz find: 'standard output': Broken pipe find: write error make[2]: *** [kernel/Makefile:157: kernel/kheaders_data.tar.xz] Error 127 make[1]: *** [scripts/Makefile.build:504: kernel] Error 2 GNU make < 4.4: GEN kernel/kheaders_data.tar.xz make[2]: *** [kernel/Makefile:157: kernel/kheaders_data.tar.xz] Error 127 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [scripts/Makefile.build:504: kernel] Error 2 Add an explicit check that will trigger a clear message about the issue: CHK kernel/kheaders_data.tar.xz ./kernel/gen_kheaders.sh: line 17: type: cpio: not found The other commands executed by gen_kheaders.sh are part of a standard installation, so they are not checked. Reported-by: Amy Parker <apark0006@student.cerritos.edu> Link: https://lore.kernel.org/lkml/CAPOgqxFva=tOuh1UitCSN38+28q3BNXKq19rEsVNPRzRqKqZ+g@mail.gmail.com/ Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Nicolas Schier <n.schier@avm.de> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.