{"action":"opened","issue":{"url":"https://api.github.com/repos/NixOS/nixpkgs/issues/24158","repository_url":"https://api.github.com/repos/NixOS/nixpkgs","labels_url":"https://api.github.com/repos/NixOS/nixpkgs/issues/24158/labels{/name}","comments_url":"https://api.github.com/repos/NixOS/nixpkgs/issues/24158/comments","events_url":"https://api.github.com/repos/NixOS/nixpkgs/issues/24158/events","html_url":"https://github.com/NixOS/nixpkgs/issues/24158","id":215696400,"number":24158,"title":"When and why did NixOS stop keeping the booted-system bootable?","user":{"login":"8573","id":3662816,"avatar_url":"https://avatars3.githubusercontent.com/u/3662816?v=3","gravatar_id":"","url":"https://api.github.com/users/8573","html_url":"https://github.com/8573","followers_url":"https://api.github.com/users/8573/followers","following_url":"https://api.github.com/users/8573/following{/other_user}","gists_url":"https://api.github.com/users/8573/gists{/gist_id}","starred_url":"https://api.github.com/users/8573/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/8573/subscriptions","organizations_url":"https://api.github.com/users/8573/orgs","repos_url":"https://api.github.com/users/8573/repos","events_url":"https://api.github.com/users/8573/events{/privacy}","received_events_url":"https://api.github.com/users/8573/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2017-03-21T10:49:05Z","updated_at":"2017-03-21T10:49:05Z","closed_at":null,"body":"I note that at [one point][1], NixOS apparently prevented\ngarbage-collection from causing the system profile corresponding to\n`/run/booted-system` — a known-bootable system generation — to be\nremoved from the list of system generations presented to the user from\nwhich to choose on boot.\n\nAs I note that NixOS no longer seems to do this, and I've failed to\nfind any seemingly relevant issues between the aforelinked one and the\npresent, I'd like to ask: when and why did NixOS stop keeping the\nlast-booted system generation available for booting?\n\n[1]: <https://github.com/NixOS/nixpkgs/issues/6175>\n\n"}}
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