4

I am trying to compile RPi kernel on Kali Linux. I have downloaded GIT & the tools-master from git. Can anyone help me in resolving this issue & understand why this error comes?

Below is the environment variable setup.

$ export CCPREFIX=arm-linux-gnueabihf-
$ export PATH=/media/6605-F597/toolchain/tools-master/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/:$PATH
$ make ARCH=arm CROSS_COMPILE=$CCPREFIX bcmrpi_defconfig

While running last command I get following error. 

HOSTCC  scripts/basic/fixdep
/bin/sh: 1: scripts/basic/fixdep: Permission denied
make[1]: *** [scripts/basic/fixdep] Error 126
make: *** [scripts_basic] Error 2

I tried goggling it but could not resolve this issue. I have this code in my vfat partition.

/dev/sda3 on /media/6605-F597 type vfat (rw,nosuid,nodev,relatime,fmask=0022,dmask=0077,codepage=437,iocharset=utf8,shortname=mixed,showexec,utf8,errors=remount-ro,uhelper=udisks)
0x07FC
  • 141
  • 3
  • You sir need root permissions to run fixdep whatever your last command was, do $sudo command – j0h Aug 10 '14 at 01:12
  • I tried running as root also but it din't help. Then I moved my code to my home directory along with the toolchain & this this error was gone. But I can't understand this logic. – 0x07FC Aug 10 '14 at 16:02
  • I am now facing some other error with my code & toolchain in my home directory. error is :- make: execvp: arm-bcm2708-linux-gnueabi-gcc: Permission denied – 0x07FC Aug 10 '14 at 16:03
  • Man, when ever you see permission denied, on anything in mean you need root privilege. sudo that. (Super User DO...sudo) – j0h Aug 10 '14 at 16:33
  • I did use root permission & could not solve this issue, so i posted this question. – 0x07FC Aug 10 '14 at 16:48
  • what is the output that file command gives on fixdep?

    file <path_to_kernel_source>/scripts/basic/fixdep

     – fadedreamz Mar 04 '15 at 05:10

1 Answers1

1

showexec is problematic:

showexec
    If set, the execute permission bits of the file will be allowed only if      
    the extension part of the name is .EXE, .COM, or .BAT. Not set by default.

use umask=000 (requires to umount and mount, remount doesn't help):

umount /dev/sdb1
mount -o umask=000 -t vfat /dev/sdb1 /media/sdb1

BTW I'd wouldn't clone / compile kernel on vfat (or other non-native fs).

Source: section "Mount options for fat" in mount(8), wiki.linuxquestions.org.

pevik
  • 113
  • 5
  • 1
    A second reason never to compile on FAT filesystems is the time stamps are only two-second granularity, which breaks the working of make. Randomly. The MS-Windows make tool is aware of that. The Linux build of the tools is not. – Janka Oct 05 '18 at 23:37