今天无意中在 journalctl 的输出中看到一条消息说我的 EFI 分区没有正确卸载，可能有数据损坏，需要运行 fsck 修复一下。上 Google 一搜立即就找到了完整的解决方法。这次搜索体验真好 :D

那条消息大致如下，

kernel: FAT-fs (nvme0n1p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.

解决的方法是使用 root 身份对有问题的分区运行 fsck，只是需要加选项 -a。

# fsck -va /dev/nvme0n1p1
fsck from util-linux 2.34
fsck.fat 4.1 (2017-01-24)
Checking we can access the last sector of the filesystem
0x41: Dirty bit is set. Fs was not properly unmounted and some data may be corrupt.
Automatically removing dirty bit.
Boot sector contents:
System ID "MSDOS5.0"
Media byte 0xf8 (hard disk)
512 bytes per logical sector
4096 bytes per cluster
7166 reserved sectors
First FAT starts at byte 3668992 (sector 7166)
2 FATs, 32 bit entries
262656 bytes per FAT (= 513 sectors)
Root directory start at cluster 2 (arbitrary size)
Data area starts at byte 4194304 (sector 8192)
65536 data clusters (268435456 bytes)
63 sectors/track, 255 heads
2048 hidden sectors
532480 sectors total
Reclaiming unconnected clusters.
Checking free cluster summary.
Performing changes.
/dev/nvme0n1p1: 201 files, 7447/65536 clusters

最近频繁遇到内核崩溃，整个电脑只有屏幕亮着、风扇狂转和大小写锁定键上的 LED 不停闪烁。估计最近再次用到这个的机会还是挺多的。©

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