Red Hat UBI Compatibility

Differences between Chainguard Containers and Red Hat UBI third-party images

4 min read

Chainguard Containers and Red Hat UBI base images have different binaries and scripts included in their respective busybox and coreutils packages. Note that Red Hat UBI images by default do not have a busybox package.

The following table lists common tools and their corresponding package(s) in both Wolfi and Red Hat distributions.

Note that $PATH locations like /usr/bin or /sbin are not included here. If you have compatibility issues with tools that are included in both busybox and coreutils, be sure to check $PATH order and confirm which version of a tool is being run.

Generally, if a tool exists in busybox but does not have a coreutils counterpart, there will be a specific package that includes it. For example the zcat utility is included in the gzip package in both Wolfi and Red Hat.

You can use the apk search command in Wolfi, or the yum search or dnf search commands in Red Hat to find out which package includes a tool.

Utility	Wolfi busybox	Wolfi coreutils	Redhat-ubi coreutils
`[`	✅	✅	✅
`[[`	✅
`add-shell`	✅
`addgroup`	✅
`adduser`	✅
`adjtimex`	✅
`arch`	✅		✅
`arping`	✅
`ash`	✅
`awk`	✅
`b2sum`		✅	✅
`base32`		✅	✅
`base64`	✅	✅	✅
`basename`	✅	✅	✅
`basenc`		✅
`bbconfig`	✅
`bc`	✅
`beep`	✅
`bunzip2`	✅
`bzcat`	✅
`bzip2`	✅
`cal`	✅
`cat`	✅	✅	✅
`chattr`	✅
`chcon`		✅	✅
`chgrp`	✅	✅	✅
`chmod`	✅	✅	✅
`chown`	✅	✅	✅
`chpasswd`	✅
`chroot`	✅	✅	✅
`chrt`	✅
`cksum`	✅	✅	✅
`clear`	✅
`cmp`	✅
`comm`	✅	✅	✅
`coreutils`		✅	✅
`cp`	✅	✅	✅
`cpio`	✅
`cryptpw`	✅
`csplit`		✅	✅
`cut`	✅	✅	✅
`date`	✅	✅	✅
`dc`	✅
`dd`	✅	✅	✅
`delgroup`	✅
`deluser`	✅
`df`	✅	✅	✅
`diff`	✅
`dir`		✅	✅
`dircolors`		✅	✅
`dirname`	✅	✅	✅
`dmesg`	✅
`dnsdomainname`	✅
`dos2unix`	✅
`du`	✅	✅	✅
`echo`	✅	✅	✅
`ed`	✅
`egrep`	✅
`env`	✅	✅	✅
`expand`	✅	✅	✅
`expr`	✅	✅	✅
`factor`	✅	✅	✅
`fallocate`	✅
`false`	✅	✅	✅
`fgrep`	✅
`find`	✅
`findfs`	✅
`flock`	✅
`fmt`		✅	✅
`fold`	✅	✅	✅
`free`	✅
`fsync`	✅
`fuser`	✅
`getopt`	✅
`getty`	✅
`grep`	✅
`groups`	✅		✅
`gunzip`	✅
`gzip`	✅
`hd`	✅
`head`	✅	✅	✅
`hexdump`	✅
`hostid`	✅	✅	✅
`hostname`	✅
`id`	✅	✅	✅
`inotifyd`	✅
`install`	✅	✅	✅
`ionice`	✅
`iostat`	✅
`ipcrm`	✅
`ipcs`	✅
`join`		✅	✅
`kill`	✅
`killall`	✅
`killall5`	✅
`less`	✅
`link`	✅	✅	✅
`linux32`	✅
`linux64`	✅
`ln`	✅	✅	✅
`logger`	✅
`login`	✅
`logname`		✅	✅
`ls`	✅	✅	✅
`lsattr`	✅
`lsof`	✅
`lzcat`	✅
`lzma`	✅
`lzop`	✅
`lzopcat`	✅
`md5sum`	✅	✅	✅
`microcom`	✅
`mkdir`	✅	✅	✅
`mkfifo`	✅	✅	✅
`mknod`	✅	✅	✅
`mkpasswd`	✅
`mktemp`	✅	✅	✅
`more`	✅
`mountpoint`	✅
`mpstat`	✅
`mv`	✅	✅	✅
`netstat`	✅
`nice`	✅	✅	✅
`nl`	✅	✅	✅
`nmeter`	✅
`nohup`	✅	✅	✅
`nologin`	✅
`nproc`	✅	✅	✅
`nsenter`	✅
`numfmt`		✅	✅
`od`	✅	✅	✅
`passwd`	✅
`paste`	✅	✅	✅
`pathchk`		✅	✅
`pgrep`	✅
`pidof`	✅
`ping`	✅
`ping6`	✅
`pinky`		✅	✅
`pipe_progress`	✅
`pivot_root`	✅
`pkill`	✅
`pmap`	✅
`pr`		✅	✅
`printenv`	✅	✅	✅
`printf`	✅	✅	✅
`ps`	✅
`pstree`	✅
`ptx`		✅	✅
`pwd`	✅	✅	✅
`pwdx`	✅
`rdev`	✅
`readahead`	✅
`readlink`	✅	✅	✅
`realpath`	✅	✅	✅
`remove-shell`	✅
`renice`	✅
`reset`	✅
`resize`	✅
`rev`	✅
`rm`	✅	✅	✅
`rmdir`	✅	✅	✅
`run-parts`	✅
`runcon`		✅	✅
`sed`	✅
`seq`	✅	✅	✅
`setpriv`	✅
`setserial`	✅
`setsid`	✅
`sh`	✅
`sha1sum`	✅	✅	✅
`sha224sum`		✅	✅
`sha256sum`	✅	✅	✅
`sha384sum`		✅	✅
`sha3sum`	✅
`sha512sum`	✅	✅	✅
`shred`	✅	✅	✅
`shuf`	✅	✅	✅
`sleep`	✅	✅	✅
`sort`	✅	✅	✅
`split`	✅	✅	✅
`stat`	✅	✅	✅
`stdbuf`		✅	✅
`strings`	✅
`stty`	✅	✅	✅
`su`	✅
`sum`	✅	✅	✅
`sync`	✅	✅	✅
`sysctl`	✅
`tac`	✅	✅	✅
`tail`	✅	✅	✅
`tar`	✅
`tee`	✅	✅	✅
`test`	✅	✅	✅
`time`	✅
`timeout`	✅	✅	✅
`top`	✅
`touch`	✅	✅	✅
`tr`	✅	✅	✅
`traceroute`	✅
`traceroute6`	✅
`tree`	✅
`true`	✅	✅	✅
`truncate`	✅	✅	✅
`tsort`	✅	✅	✅
`tty`	✅	✅	✅
`ttysize`	✅
`tunctl`	✅
`uname`	✅	✅	✅
`unexpand`	✅	✅	✅
`uniq`	✅	✅	✅
`unix2dos`	✅
`unlink`	✅	✅	✅
`unlzma`	✅
`unlzop`	✅
`unxz`	✅
`unzip`	✅
`uptime`	✅
`users`		✅	✅
`usleep`	✅
`uudecode`	✅
`uuencode`	✅
`vconfig`	✅
`vdir`		✅	✅
`vi`	✅
`vlock`	✅
`watch`	✅
`wc`	✅	✅	✅
`which`	✅
`who`	✅	✅	✅
`whoami`	✅	✅	✅
`xargs`	✅
`xxd`	✅
`xzcat`	✅
`yes`	✅	✅	✅
`zcat`	✅

Last updated: 2024-03-08 15:56

Red Hat UBI Compatibility

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