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d03ef97c1b
It's being used only in x86 target to produce combined images, where it's mandatory to have padded images in order to produce working squashfs combined images usable in QEMU. Currently we're producing unusable x86 combined squashfs images (18.06.1, 18.06.2 and snapshots) as we don't enable TARGET_IMAGES_PAD, thus providing very small space for the overlay filesystem, leading to the following with OpenWrt 18.06.1 r7258-5eb055306f images on x86 QEMU: root@(none):/# mount | egrep 'root|overlay' /dev/root on /rom type squashfs /dev/loop0 on /overlay type ext4 overlayfs:/overlay on / type overlay root@(none):/# df -h | egrep 'root|overlay|Size' Filesystem Size Used Available Use% Mounted on /dev/root 2.5M 2.5M 0 100% /rom /dev/loop0 113.0K 8.0K 97.0K 8% /overlay overlayfs:/overlay 113.0K 8.0K 97.0K 8% / So we should rather ensure proper image padding in image generation code and we shouldn't rely on config options in order to generate usable images. Signed-off-by: Petr Štetiar <ynezz@true.cz>
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|__| W I R E L E S S F R E E D O M
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This is the buildsystem for the OpenWrt Linux distribution.
To build your own firmware you need a Linux, BSD or MacOSX system (case
sensitive filesystem required). Cygwin is unsupported because of the lack
of a case sensitive file system.
You need gcc, binutils, bzip2, flex, python, perl, make, find, grep, diff,
unzip, gawk, getopt, subversion, libz-dev and libc headers installed.
1. Run "./scripts/feeds update -a" to obtain all the latest package definitions
defined in feeds.conf / feeds.conf.default
2. Run "./scripts/feeds install -a" to install symlinks for all obtained
packages into package/feeds/
3. Run "make menuconfig" to select your preferred configuration for the
toolchain, target system & firmware packages.
4. Run "make" to build your firmware. This will download all sources, build
the cross-compile toolchain and then cross-compile the Linux kernel & all
chosen applications for your target system.
Sunshine!
Your OpenWrt Community
http://www.openwrt.org