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Out of curiosity, I got the slackware pkgtool.txz package, decompressed it and installed it on slitaz. I also added the /var/log directories that installpkg and pkgtool expect to find. When I used them, I got error messages related to busybox utilities that mimic gnu utilities, but without all the gnu options. It is theoretically possible to install slackware programs like gkrellm, acpitool and lm_sensors on slitaz, but not this way.
Also, busybox may be implicated in making cpufreq-set not work. Acpitool reports that loading frequency governor modules does not make the cpu work under the module, so I assumed this kernel requires cpufreq-set.
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Technically busybox is a multi-command binary that emulates many of the commands provided by the gnu coreutils binaries but with a smaller size and resources foot print.
That said, do all programs work with it? No. The majority does and compile fine with busybox tools, but others require the real thing. For instances like that SliTaz provides the real command with the coreutils-* packages or you could just install the meta package named coreutils-7.6 to get all of them. Add to that the bash shell and it should work exactly like you'd expect.
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