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Cake day: March 22nd, 2024

  • I don’t know how Debian’s solution works, so I couldn’t say for certain. Gentoo usually installs the different package versions to their own directories, and there are methods for selecting a “system python” (or lua, etc) which is the target of the /usr/bin/python symlink. Other versions have to be called with qualifiers (for instance, python3.10). Python libraries installed through the package manager may install to one or several versions depending on the content of a couple of environment variables, and applications that need python can request a specific version if they need to, or accept the system python if they don’t care. (Note that python2 is no longer eligible to be the system python—you need at least one python3, although 2.7.18 remains in the package repository and can be installed as well if you really need it.)

    Of course, if you’re not a programmer, you can leave the defaults for everything alone, and most of the time it should Just Work.


  • One problem with distro packages is that you can only install one version.

    This isn’t technically true for all distros—Gentoo has a mechanism that will allow multiple package versions to be installed in parallel. I have multiple distro-packaged Python and Lua interpreter versions on my system, for instance. But it does require some extra work by the packager, so it isn’t done universally for all packages.


  • It used to be much, much more difficult than it is today, but your experiences will still vary according to what type of printer you have. The problem is drivers. There are still printers out there that have no working Linux driver (mostly old, non-Postscript-supporting, with no Mac drivers either). Some will work with a generic driver, but some features aren’t available. The more annoying case is the one where the manufacturer put out a driver once, many years ago, it doesn’t work properly with modern versions of CUPS, and they can’t be arsed to revise it.

    But most printers these days will do basic one-sided 100%-size prints out of the box, and that’s all many people need.



  • One thing people reading this should remember is that you cannot guarantee all packages on a Gentoo system will be updated simultaneously. It just can’t be done. Because several of the arches affected by this are old, slow, and less-used (32-bit PowerPC, anyone?), it’s also impossible to test all combinations of USE flags for all arches in advance, so sooner or later someone will have something break in mid-compile. For this change, that could result in an unbootable system, or a badly broken one that can’t continue the upgrade because, for example, Python is broken and so portage can’t run.

    The situation really is much more complicated than it would be on a binary distro whose package updates are atomic. Not intractable, but complicated.

    That being said, even a completely borked update would not make the system unrecoverable—you boot from live media, copy a known-good toolchain from the install media for that architecture over the borked install, chroot in, and try again (possibly with USE flag tweaks) until you can get at least emerge --emptytree system or similar to run to completion. It’s a major, major pain in the ass, though, and I can understand why the developers want to reduce the number of systems that have to be handled in that way to as few as possible.



  • Yup, called it: non-mandatory piece of software. Plus you have to have been dumb enough to deliberately forward the port at your router for the general-case attack, and you have to print something (which I do maybe twice a month) for any command injection to take place.

    This does need to be patched, since there is some risk if you have CUPS running and another device on your LAN has already been compromised, but it’s definitely not the earthshattering kaboom the discoverer misrepresented it as.



  • To be exact, OpenRC was developed to be run on top of sysV init, and still can be. (Many distros had their own “on top of sysV” things, but most of them stopped being maintained as systemd became common. OpenRC started its life as Gentoo’s “on top of sysV”, but was then cleaned up and made distro-agnostic.)

    s6 is apparently a daemontools-like process supervisor that can be run as an init or in company with some other init.

    Gentoo’s comparison of init systems lists Artix as the preferred service file supplier for s6 (although that may be outdated), so I expect it is or was used extensively by that distro.