我有一台运行 Ubuntu 20 的旧电脑突然停止工作。电脑打不开ubuntu，出现这个错误：
ACPI Error: AE_NOT_FOUND. While resolving a named reference package element - SATA (20190816/dspkginit-438)
fsck.ext4: Superblock checksum does not match superblock while trying to open /dev/sdb5
/dev/sdb5:
The superblock could not be read or does not describe a valid ext2/ext3/ext4 filesystem. If the device is valid and it really contains an ext2/ext3/ext4 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck …20.04 ×1