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Dirk Neukirchen 622f8ef577 grub2: disable liblzma dependency 
Florian Ekert reported:

"I have build a fresh master branch recently, Since your last change [1]
on grub2, I have now a new dependency on liblzma for the install package
grub2-editenv.

root@st-dev-07 /usr/lib # ldd /root/grub-editenv
       /lib/ld-musl-x86_64.so.1 (0x7f684b088000)
       liblzma.so.5 => /usr/lib/liblzma.so.5 (0x7f684b06d000)
       libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x7f684b059000)
       libc.so => /lib/ld-musl-x86_64.so.1 (0x7f684b088000)

This was not the case before your update.

root@st-dev-07 /usr/sbin # ldd /usr/sbin/grub-editenv
       /lib/ld-musl-x86_64.so.1 (0x7fd970176000)
       libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x7fd970162000)
       libc.so => /lib/ld-musl-x86_64.so.1 (0x7fd970176000)

My build complains that it cannot satisfy the runtime package dependency
for grub2-editenv.

install -d -m0755 /home/feckert/workspace/openwrt/LDM-master-x86_64/build/openwrt/build_dir/target-x86_64_musl/linux-x86_64/grub-pc/grub-2.06~rc1/ipkg-x86_64/grub2-editenv/usr/sbin
install -m0755 /home/feckert/workspace/openwrt/LDM-master-x86_64/build/openwrt/build_dir/target-x86_64_musl/linux-x86_64/grub-pc/grub-2.06~rc1/grub-editenv /home/feckert/workspace/openwrt/LDM-master-x86_64/build/openwrt/build_dir/target-x86_64_musl/linux-x86_64/grub-pc/grub-2.06~rc1/ipkg-x86_64/grub2-editenv/usr/sbin/
find /home/feckert/workspace/openwrt/LDM-master-x86_64/build/openwrt/build_dir/target-x86_64_musl/linux-x86_64/grub-pc/grub-2.06~rc1/ipkg-x86_64/grub2-editenv -name 'CVS' -o -name '.svn' -o -name '.#*' -o -name '*~'| xargs -r rm -rf
Package grub2-editenv is missing dependencies for the following libraries:
liblzma.so.5
make[2]: *** [Makefile:166: /home/feckert/workspace/openwrt/LDM-master-x86_64/build/openwrt/bin/APOS/feckert/master/master-Maggie-455-ga5edc0e8e/x86_64/targets/x86/64/packages/grub2-editenv_2.06~rc1-1_x86_64.ipk] Error 1
make[2]: Leaving directory '/home/feckert/workspace/openwrt/LDM-master-x86_64/build/openwrt/package/boot/grub2'
time: package/boot/grub2/pc/compile#78.64#9.79#83.88
   ERROR: package/boot/grub2 failed to build (build variant: pc).
make[1]: *** [package/Makefile:116: package/boot/grub2/compile] Error 1
make[1]: Leaving directory '/home/feckert/workspace/openwrt/LDM-master-x86_64/build/openwrt'
make: *** [/home/feckert/workspace/openwrt/LDM-master-x86_64/build/openwrt/include/toplevel.mk:230: package/boot/grub2/compile] Error 2

If I add the following changes to the package all works as expected.

<snip>
-  DEPENDS:=@TARGET_x86
+  DEPENDS:=@TARGET_x86 +liblzma
  VARIANT:=pc
endef

This is a hotfix but I dont´t think this is the final solution, because lzma is provided by the package xz.
And This is maintained in the package feed [not the core]"

Dirk stated & offered his patch to disable liblzma and thus resolve the
'out of core dependency' problem:

"LZMA is used in mkimage.c
disabling it prints
Without liblzma (no support for XZ-compressed mips images) (explicitly disabled)
(see configure.ac)

liblzma is autodetected so this issue was present but hidden somehow

[unsure: grep/image generation does not use grub with that option]
OpenWrt does not use that feature currently

[!] some scripts and examples use --compression=xz or -C xz and those will break

grub has an internal xzlib for different "lzma" functionality
(ext. LIBLZMA from XZ (GRUB_COMPRESSION_XZ) vs. GRUB_COMPRESSION_LZMA)"

Hopefully fixes e74d81ece2 and doesn't
break anything else.

Signed-off-by: Dirk Neukirchen <plntyk.lede@plntyk.name>
[include Florian's description of how problem 1st encountered]
[bump package release]
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2021-05-21 09:17:59 +01:00
.github build: Update README & github help 2018-07-08 09:41:53 +01:00
config treewide: fix spelling 'seperate' -> 'separate' 2021-02-28 23:59:21 +00:00
include kernel: bump 5.10 to 5.10.37 2021-05-14 14:50:03 +01:00
LICENSES LICENSES: include all used licenses in LICENSES directory 2021-02-14 19:21:38 +01:00
package grub2: disable liblzma dependency 2021-05-21 09:17:59 +01:00
scripts build: introduce $(MKHASH) 2021-05-13 15:13:15 +02:00
target imx6: image: cleanup variables order within device's defines 2021-05-20 13:45:12 +02:00
toolchain toolchain/gdb: fix broken configure test for ELF support 2021-05-18 12:52:52 +02:00
tools firmware-utils: fix coverity zytrx.c resource leak 2021-05-20 11:56:38 +01:00
.gitattributes
.gitignore gitignore: add .vscode for VS Code users 2021-03-08 10:46:06 +01:00
BSDmakefile build: use SPDX license tags 2021-02-05 14:54:47 +01:00
Config.in build: use SPDX license tags 2021-02-05 14:54:47 +01:00
COPYING COPYING: add COPYING file to specify project licenses 2021-02-14 19:21:38 +01:00
feeds.conf.default feeds: management: remove dead and out of project feed 2021-05-01 00:37:15 +02:00
Makefile Revert "build: replace which with Bash command built-in" 2021-03-03 22:51:39 +01:00
README.md README: add install command to build requirements 2021-03-26 19:57:20 +01:00
rules.mk build: introduce $(MKHASH) 2021-05-13 15:13:15 +02:00

README.md

OpenWrt logo

OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.

Sunshine!

Development

To build your own firmware you need a GNU/Linux, BSD or MacOSX system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.

Requirements

You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.

binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.6+ rsync subversion unzip which

Quickstart

  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 GNU/Linux kernel & all chosen applications for your target system.

Related Repositories

The main repository uses multiple sub-repositories to manage packages of different categories. All packages are installed via the OpenWrt package manager called opkg. If you're looking to develop the web interface or port packages to OpenWrt, please find the fitting repository below.

Support Information

For a list of supported devices see the OpenWrt Hardware Database

Documentation

Support Community

  • Forum: For usage, projects, discussions and hardware advise.
  • Support Chat: Channel #openwrt on freenode.net.

Developer Community

License

OpenWrt is licensed under GPL-2.0