根卷 fs (ext4) 在每次启动时都会重新安装内核

Question

[UEFI/GPT 启动上的 Arch 系统]

每次启动时，我的盒子的根卷（位于其自己的 ext4 分区中）都会重新安装，（我认为）在我上次更新之前从未发生过（内核 5.8.5 -> 5.9.3）。

我对应的/etc/fstab行是：

UUID=xxxxxxxxxxxxxxxxxxxxxxxx   /   ext4   errors=remount-ro,relatime,data=ordered,acl,user_xattr   0 1

下面包含唯一相关的日记日志条目。它们以记录的第一次安装的跟踪开始，以重新安装的跟踪日志结束（journalctl -b输出中没有中间日志条目）：

Nov 06 09:35:27 HOST kernel: EXT4-fs (nvme0n1p8): mounted filesystem with ordered data mode. Opts: (null)
Nov 06 09:35:27 HOST systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
Nov 06 09:35:27 HOST systemd[1]: Mounting Huge Pages File System...
Nov 06 09:35:27 HOST systemd[1]: Mounting POSIX Message Queue File System...
Nov 06 09:35:27 HOST systemd[1]: Mounting Kernel Debug File System...
Nov 06 09:35:27 HOST systemd[1]: Mounting Kernel Trace File System...
Nov 06 09:35:27 HOST systemd[1]: Condition check resulted in File System Check on Root Device being skipped.
Nov 06 09:35:27 HOST systemd[1]: Starting Remount Root and Kernel File Systems...
Nov 06 09:35:27 HOST systemd[1]: Mounted Huge Pages File System.
Nov 06 09:35:27 HOST systemd[1]: Mounted POSIX Message Queue File System.
Nov 06 09:35:27 HOST systemd[1]: Mounted Kernel Debug File System.
Nov 06 09:35:27 HOST systemd[1]: Mounted Kernel Trace File System.
Nov 06 09:35:27 HOST systemd[1]: proc-sys-fs-binfmt_misc.automount: Got automount request for /proc/sys/fs/binfmt_misc, triggered by 251 (systemd-binfmt)
Nov 06 09:35:27 HOST systemd[1]: Mounting Arbitrary Executable File Formats File System...
Nov 06 09:35:27 HOST systemd[1]: Mounted Arbitrary Executable File Formats File System. 
Nov 06 09:35:27 HOST kernel: EXT4-fs (nvme0n1p8): re-mounted. Opts: errors=remount-ro,data=ordered,acl,user_xattr
Nov 06 09:35:27 HOST systemd[1]: Finished Remount Root and Kernel File Systems.

有任何关于为什么会发生这种情况的指示吗？
看起来好像systemd首先按root原样安装分区，以便完成大页表、消息队列、内核调试和跟踪的设置，然后再花时间使用root指定的正确安装分区（/dev/nvme0n1p8）安装选项。这很可能是我们朋友正常启动顺序的一部分systemd，但我对此并不熟悉。

一个解释会很好。或者这只是从 USB 启动、安装卷/mnt/并fsck进行/修复的情况？