我的 SD 卡有一个 FAT32 分区和一个用于 Android 的 EXT 分区。我不再需要 EXT 分区，因此我使用 GParted 删除它并增加 FAT32 以使用额外空间，但 Windows 7 不再看到它：
但是 Ubuntu 仍然能够正常查看它，包括所有文件：
磁盘应用程序的“修复文件系统”和 GParted 的“检查”也没有修复它。
这表明parted：
(parted) print
Model: Generic- Multi-Card (scsi)
Disk /dev/sdb: 31.4GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:
Number Start End Size Type File system Flags
1 4194kB 31.4GB 31.4GB primary fat32 lba
dosfsck说：
fsck.fat 4.1 (2017-01-24)
Checking we can access the last sector of the filesystem
Boot sector contents:
System ID "MSWIN4.1"
Media byte 0xf8 (hard disk)
512 bytes per logical sector
65536 bytes per cluster
184 reserved sectors
First FAT starts at byte 94208 (sector 184)
2 FATs, 32 bit entries
1918976 bytes per FAT (= 3748 sectors)
Root directory start at cluster 6 (arbitrary size)
Data area starts at byte 3932160 (sector 7680)
479620 data clusters (31432376320 bytes)
32 sectors/track, 64 heads
8192 hidden sectors
61399040 sectors total
Reclaiming unconnected clusters.
Checking free cluster summary.
/dev/sdb1: 92610 files, 408037/479620 clusters
还尝试了 TestDisk，它说：
TestDisk 7.1-WIP, Data Recovery Utility, April 2018
Christophe GRENIER <[email protected]>
https://www.cgsecurity.org
Disk /dev/sde - 31 GB / 29 GiB - CHS 3822 255 63
Current partition structure:
Partition Start End Size in sectors
Invalid FAT boot sector
1 P FAT32 LBA 0 130 3 3822 107 61 61399040
1 P FAT32 LBA 0 130 3 3822 107 61 61399040
No partition is bootable
此驱动器不需要可启动。快速搜索找到了我已删除并重新调整大小的 Linux 分区，但我想这并不重要：
TestDisk 7.1-WIP, Data Recovery Utility, April 2018
Christophe GRENIER <[email protected]>
https://www.cgsecurity.org
Disk /dev/sde - 31 GB / 29 GiB - CHS 3822 255 63
Partition Start End Size in sectors
>* Linux 3692 99 56 3822 107 61 2088960 [Link2SD]
这似乎更重要：
TestDisk 7.1-WIP, Data Recovery Utility, April 2018
Christophe GRENIER <[email protected]>
https://www.cgsecurity.org
Disk /dev/sde - 31 GB / 29 GiB - CHS 3822 255 63
Partition Start End Size in sectors
1 P FAT32 LBA 0 130 3 3822 107 61 61399040
Boot sector
Bad
Backup boot sector
Bad
Second sectors (cluster information) are not identical.
Third sectors (second part of boot code) are not identical.
A valid FAT Boot sector must be present in order to access
any data; even if the partition is not bootable.
我尝试在 TestDisk 中重建引导扇区，但没有效果：
TestDisk 7.1-WIP, Data Recovery Utility, April 2018
Christophe GRENIER <[email protected]>
https://www.cgsecurity.org
Disk /dev/sde - 31 GB / 29 GiB - CHS 3822 255 63
Partition Start End Size in sectors
1 P FAT32 LBA 0 130 3 3822 107 61 61399040
FAT : 32
cluster_size 128 128
reserved 184 184
total_sect 61399040 61399040
fat32_length 3748 3748
root_cluster 2 6
free_count uninitialised 71583
next_free uninitialised 2
Extrapolated boot sector and current boot sector are different.
答案1
检查簇大小是否适合 FAT32。请参见Microsoft 文档了解更多详情。64k 可能对于 FAT32 分区来说太大，请尝试使用 16k。否则，您可以尝试允许更大簇大小的 exFAT。