Help me out!! You don' t have any Linux partitions

Changwan

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I am using Centos 7 in the VMware Workstation 15 Player. And I was trying to expand my virtual HDD from 20 G to 40 G and I did, but I could not boot.

When I type journalctl to read system logs in the dracut emergency shell, I could read "Warning: Could not boot."
I also found there: " [sda] Assuming drive cache: write through" and
"Time out waiting for device dev-mapper-cl\x2dswap.device."

Besides, when I type exit in the dracut emergency cell,
I found: "Warning: Not all disks have been found"
"Warning: You might want to regenerate your initramfs."


I found helpful advice from other posts, and I could use rescue mode from ISO image; However it said " You don' have any Linux partitions."

I don't want to lose my precious data set. How can I fix this situation?
I made some red bold texts that I do not know exactly.
I used several linux command lines in the shell: fdisk -l and lsblk and fdisk /dev/sda1. I attached their screenshots to give you some information about this problem.

SOMEBODY HELP ME!
 

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