Bug#864525: flash-kernel: fails on fat32

[Heinrich Schuchardt <xypron.glpk@gmx.de>]

Package: flash-kernel
Version: 3.79
Severity: normal

Dear Maintainer,

flash-kernel currently fails if the boot partition is FAT32.

On FAT32 symbolic links cannot be created.

flash-kernel in this case should simply copy the file.

Best regards

Heinrich Schuchardt

-- System Information:
Debian Release: 9.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: arm64 (aarch64)

Kernel: Linux 4.11.1-R005-arm64 (PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=locale: Cannot
set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
ANSI_X3.4-1968) (ignored: LC_ALL set to en_US.UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=locale: Cannot set LC_CTYPE to default
locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
ANSI_X3.4-1968) (ignored: LC_ALL set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: unable to detect

Versions of packages flash-kernel depends on:
ii  debconf [debconf-2.0]  1.5.61
ii  devio                  1.2-1.2+b1
ii  initramfs-tools        0.130
ii  linux-base             4.5
ii  mtd-utils              1:2.0.0-1
ii  ucf                    3.0036

Versions of packages flash-kernel recommends:
ii  u-boot-tools  2016.11+dfsg1-4

flash-kernel suggests no packages.

-- debconf information:
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = (unset),
        LC_ALL = "en_US.UTF-8",
        LC_TIME = "de_DE.UTF-8",
        LC_CTYPE = "en_US.UTF-8",
        LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
  flash-kernel/linux_cmdline: quiet