System unknown filesystem

recently, the w10 and deepin of the dual system on the computer have been prompted to update every day, but there is not enough space on disk C. Today, I intend to add partitions to disk C, but after the partition restart, unknown filesystem

appears.

according to some answers on the Internet, but ls (hd0,msdos1) until dos7 has tried, there are no results like those mentioned on the Internet

only msdos5 has one filesystem is ext2 and the others are filesystem is unknown

tragedy, ask everyone to help solve the data in the, deepin system. It doesn"t matter that there is something very important in W10. Alas

Jul.12,2021

has been solved
repair

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b31dd4-2bdc6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b31dd4-2bdc6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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