20.04 snapd问题：“系统不完全支持snapd：无法挂载squashfs映像...”

Question

我在 VPS 上运行 Ubuntu 20.04。我想安装 certbot，但我遇到了 squashfs 问题 - 这是我在尝试安装 certbot 时遇到的问题sudo systemctl status snapd（显然，我在尝试安装 certbot 时遇到了此错误）：

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\xe2\x97\x8f snapd.service - Snap Daemon\n     Loaded: loaded (/lib/systemd/system/snapd.service; enabled; vendor preset: enabled)\n     Active: inactive (dead) since Wed 2021-05-26 10:56:39 EDT; 16min ago\nTriggeredBy: \xe2\x97\x8f snapd.socket\n   Main PID: 166 (code=exited, status=42)\n\nMay 26 10:56:34 vps70508.inmotionhosting.com systemd[1]: Starting Snap Daemon...\nMay 26 10:56:34 vps70508.inmotionhosting.com snapd[166]: AppArmor status: apparmor not enabled\nMay 26 10:56:34 vps70508.inmotionhosting.com snapd[166]: daemon.go:347: started snapd/2.48.3+20.04 (series 16; classic; devmode) ubuntu/20.04 (amd64) linux/5.4.0.\nMay 26 10:56:34 vps70508.inmotionhosting.com snapd[166]: main.go:129: system does not fully support snapd: cannot mount squashfs image using "squashfs": mount: /tmp/sanity-mountpoint-635561883: mount failed: Operation not permitted.\n\n\nMay 26 10:56:34 vps70508.inmotionhosting.com snapd[166]: daemon.go:440: adjusting startup timeout by 30s (pessimistic estimate of 30s plus 5s per snap)\nMay 26 10:56:34 vps70508.inmotionhosting.com systemd[1]: Started Snap Daemon.\nMay 26 10:56:39 vps70508.inmotionhosting.com snapd[166]: daemon.go:589: gracefully waiting for running hooks\nMay 26 10:56:39 vps70508.inmotionhosting.com snapd[166]: daemon.go:591: done waiting for running hooks\nMay 26 10:56:39 vps70508.inmotionhosting.com snapd[166]: daemon stop requested to wait for socket activation\nMay 26 10:56:39 vps70508.inmotionhosting.com systemd[1]: snapd.service: Succeeded.\n

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sudo apt install fuse squashfuse对我的情况没有帮助。

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Answer 1

由于您使用的是 VPS，您的环境可能不支持快照。我在letcrypt上找到了这篇文章，有人说：

snaps 依赖于某些 Linux 内核功能，这些功能在容器化服务器（例如在 openvz 下运行的服务器）下不可用。

https://community.letsencrypt.org/t/system-does-not-filled-support-snapd-cannot-mount-squashfs-image-using-squashfs/132689

希望这有帮助。