Difference between revisions of "BusyBox"

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The [https://wiki.archlinux.org/index.php/DeveloperWiki:Core-Repository base]2[http://www.archlinux.org/packages/community/x86_64/busybox/ busybox] project aims to offer drop-in replacements for various central parts of the Arch linux base system.
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[[Category:System administration]]
 +
 
 +
The [https://wiki.archlinux.org/index.php/DeveloperWiki:Core-Repository base]2[https://www.archlinux.org/packages/community/x86_64/busybox/ busybox] project aims to offer drop-in replacements for various central parts of the Arch linux base system.
  
 
'''IMPORTANT: Do not expect 100% drop-in replacement and compatibility. Certain utilities may not exist and for those that do, there may be missing options. One purpose of this Wiki is to document missing features and the problems they cause (in order to device work-arounds). Make sure that the replacement(s) that you install fill your needs before proceeding.'''
 
'''IMPORTANT: Do not expect 100% drop-in replacement and compatibility. Certain utilities may not exist and for those that do, there may be missing options. One purpose of this Wiki is to document missing features and the problems they cause (in order to device work-arounds). Make sure that the replacement(s) that you install fill your needs before proceeding.'''
  
 
Busybox commands are simply symlinks to the busybox binary and are thus extremely light weight. For a low footprint system, this could be quite valuable.
 
Busybox commands are simply symlinks to the busybox binary and are thus extremely light weight. For a low footprint system, this could be quite valuable.
 +
 +
 +
----
  
 
==gnu2busybox-coreutils==
 
==gnu2busybox-coreutils==
  
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This [https://aur.archlinux.org/packages.php?ID=48187 package] offers a nearly pain-free drop-in replacement of the GNU coreutils. Some commands lack options present in the corresponding coreutils binaries (current problems: Yaourt and readline).
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Package {{AUR|gnu2busybox-coreutils}} offers a nearly pain-free drop-in replacement of the GNU coreutils. Some commands lack options present in the corresponding coreutils binaries.
  
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Gain from replacing coreutils with busybox: GNU [http://www.archlinux.org/packages/core/x86_64/coreutils/ coreutils]: 13.1 MB installed, symlinks to busybox: approximately 0.
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Gain from replacing coreutils with busybox: GNU {{Pkg|coreutils}}: 13.1 MB installed, symlinks to busybox: approximately 0.
  
 
'''Missing utilities:'''
 
'''Missing utilities:'''
 +
 
/bin
 
/bin
−
     dir dircolors shred vdir
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     dircolors
  
 
/usr/bin  
 
/usr/bin  
−
     chcon csplit factor fmt join link nl nproc paste pinky pr ptx runcon sha224sum sha256sum sha384sum sha512sum shuf
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     chcon csplit factor fmt join nl nproc paste pinky pr ptx runcon shuf
−
     stdbuf timeout truncate tsort unlink users
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     stdbuf timeout truncate tsort users
 +
 
 +
'''Missing utilities that are mapped to corresponding Busybox functions or ash script files'''
 +
 
 +
/bin
 +
    dir --> ls
 +
    shred --> rm
 +
    vdir --> ls
 +
 
 +
/usr/bin
 +
    link --> ln
 +
    unlink --> rm
 +
    sha224sum --> script: perl-digest-sha
 +
    sha256sum --> script: perl-digest-sha
 +
    sha384sum --> script: perl-digest-sha
 +
    sha512sum --> script: perl-digest-sha
  
 
'''Missing features that cause problems:'''
 
'''Missing features that cause problems:'''
 +
 +
      readlink: missing option [-e, -m, -q or -s] causes problems for Yaourt
 
      
 
      
 +
----
 +
 +
==base2busybox-util-linux==
 +
 +
Package {{AUR|base2busybox-util-linux}} offers an alternative to util-linux.
 +
 +
Gain from replacing util-linux with busybox: {{Pkg|util-linux}}:  7.5 MB installed, symlinks to busybox: approximately 0.
 +
 +
'''Missing utilities:'''
 +
 +
/bin
 +
    arch findmnt lsblk
 +
 +
/sbin
 +
    agetty blkid cfdisk ctrlaltdel findfs fsck.cramfs fsfreeze fstrim mkfs
 +
    mkfs.bfs mkfs.cramfs raw sfdisk swaplabel wipefs
 +
 +
/usr/bin
 +
  chkdupexe col colcrt colrm column cytune ddate fallocate i386 ionice ipcmk
 +
  isosize line look lscpu mcookie namei pg rename scriptreplay setterm tailf
 +
  taskset ul unshare uuidgen whereis write x86_64
 +
 +
/usr/sbin
 +
    addpart delpart ldattach partx tunelp uuidd
 +
 +
'''Missing features that cause problems:'''
  
 
==gnu2busybox-findutils==
 
==gnu2busybox-findutils==
  
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This [https://aur.archlinux.org/packages.php?ID=48353 package] offers functionality corresponding to the binaries found in GNU [http://www.archlinux.org/packages/core/x86_64/findutils/ findutils].
+
Package {{AUR|gnu2busybox-findutils}} offers functionality corresponding to the binaries found in GNU {{Pkg|findutils}}.
  
 
Gain from replacing findutils with busybox: GNU findutils: 1.7 MB installed, symlinks to busybox: approximately 0.
 
Gain from replacing findutils with busybox: GNU findutils: 1.7 MB installed, symlinks to busybox: approximately 0.
  
 
'''Missing utilities:'''
 
'''Missing utilities:'''
−
      
+
 
 +
/usr/bin
 +
     oldfind
  
 
'''Missing features that cause problems:'''
 
'''Missing features that cause problems:'''
−
   
+
 
 +
----
  
 
==gnu2busybox-diffutils==
 
==gnu2busybox-diffutils==
  
−
This [https://aur.archlinux.org/packages.php?ID=48363 package] offers functionality corresponding to the binaries found in GNU [http://www.archlinux.org/packages/core/x86_64/diffutils/ diffutils].
+
Package {{AUR|gnu2busybox-diffutils}} offers functionality corresponding to the binaries found in GNU {{Pkg|diffutils}}.
  
 
Gain from replacing diffutils with busybox: GNU diffutils: 1.4 MB installed, symlinks to busybox: approximately 0.
 
Gain from replacing diffutils with busybox: GNU diffutils: 1.4 MB installed, symlinks to busybox: approximately 0.
  
 
'''Missing utilities:'''
 
'''Missing utilities:'''
−
      
+
 
 +
/usr/bin
 +
     diff3 sdiff
  
 
'''Missing features that cause problems:'''
 
'''Missing features that cause problems:'''
−
   
 
  
 
==FUTURE PLANS==
 
==FUTURE PLANS==

Revision as of 07:39, 7 December 2012


The base2busybox project aims to offer drop-in replacements for various central parts of the Arch linux base system.

IMPORTANT: Do not expect 100% drop-in replacement and compatibility. Certain utilities may not exist and for those that do, there may be missing options. One purpose of this Wiki is to document missing features and the problems they cause (in order to device work-arounds). Make sure that the replacement(s) that you install fill your needs before proceeding.

Busybox commands are simply symlinks to the busybox binary and are thus extremely light weight. For a low footprint system, this could be quite valuable.


gnu2busybox-coreutils

Package gnu2busybox-coreutilsAUR offers a nearly pain-free drop-in replacement of the GNU coreutils. Some commands lack options present in the corresponding coreutils binaries.

Gain from replacing coreutils with busybox: GNU coreutils: 13.1 MB installed, symlinks to busybox: approximately 0.

Missing utilities:

/bin 

    dircolors

/usr/bin 

    chcon csplit factor fmt join nl nproc paste pinky pr ptx runcon shuf
    stdbuf timeout truncate tsort users

Missing utilities that are mapped to corresponding Busybox functions or ash script files

/bin 

   dir --> ls
   shred --> rm
   vdir --> ls

/usr/bin 

   link --> ln
   unlink --> rm
   sha224sum --> script: perl-digest-sha
   sha256sum --> script: perl-digest-sha
   sha384sum --> script: perl-digest-sha
   sha512sum --> script: perl-digest-sha

Missing features that cause problems: 

     readlink: missing option [-e, -m, -q or -s] causes problems for Yaourt

base2busybox-util-linux

Package base2busybox-util-linuxAUR offers an alternative to util-linux.

Gain from replacing util-linux with busybox: util-linux: 7.5 MB installed, symlinks to busybox: approximately 0.

Missing utilities:

/bin 

    arch findmnt lsblk

/sbin 

   agetty blkid cfdisk ctrlaltdel findfs fsck.cramfs fsfreeze fstrim mkfs
   mkfs.bfs mkfs.cramfs raw sfdisk swaplabel wipefs

/usr/bin 

  chkdupexe col colcrt colrm column cytune ddate fallocate i386 ionice ipcmk
  isosize line look lscpu mcookie namei pg rename scriptreplay setterm tailf
  taskset ul unshare uuidgen whereis write x86_64

/usr/sbin 

    addpart delpart ldattach partx tunelp uuidd

Missing features that cause problems:

gnu2busybox-findutils

Package gnu2busybox-findutilsAUR offers functionality corresponding to the binaries found in GNU findutils.

Gain from replacing findutils with busybox: GNU findutils: 1.7 MB installed, symlinks to busybox: approximately 0.

Missing utilities:

/usr/bin 

    oldfind

Missing features that cause problems:

gnu2busybox-diffutils

Package gnu2busybox-diffutilsAUR offers functionality corresponding to the binaries found in GNU diffutils.

Gain from replacing diffutils with busybox: GNU diffutils: 1.4 MB installed, symlinks to busybox: approximately 0.

Missing utilities:

/usr/bin 

    diff3 sdiff

Missing features that cause problems:

FUTURE PLANS

  • Busybox-init: a very simple (only 1 runlevel) init system, ash init scripts
  • Meta-package and/or group to easily convert an Arch base system to a busybox base system.
Retrieved from "https://wiki.archlinux.org/index.php?title=BusyBox&oldid=239294"