Hi,
Tails runs without any swap space (obviously, to maintain amnesia), the entire system may lock up at any moment due to heavy memory usage and opening of many Web browser tabs (which I usually do), the Magic Sysrq functionality of manually invoking the OOM killer in such emergency situations is disabled by default in Tails (and there's no way to enable without rebooting, and it's not recommended to enable it when connecting to the Internet as it's insecure), and Tails bundles no userspace early OOM daemon enabled out-of-the-box (such as systemd-oomd). *The very least you can do is ship a new version of Tails *with a slightly modified configuration value under /proc *to enable the Magic Sysrq-F key combination*. I request that you also consider shipping *systemd-oomd enabled by default* in the next major release of Tails (i.e. version 6.0).Thanks for the suggestion. Would you mind explaining in what kind of scenarios relying on Linux kernel built-in OOM killer gave you a bad UX?
I have a USB flash drive with Tails, installed using Tails installer, with an encrypted persistence, up-to-date as of around 2019-2020, with an early (stable) version of Tails 4.x if I remember right. My question is this: Can I do a manual upgrade to the latest stable version of Tails 5?
yes
*Should I back up my encrypted persistence *before doing anything,
yes -- boyska
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