Accidentally removed /var/db, please help to recover

Hello,
After removal of /var/db directory, the system is unbootable. However i can boot from RecoverHD partition. Is there a way to recover without reinstalling OS?
There is verbose log:
It seems that problem is in BootCacheControl. Is it possible to exclude it from boot process. I tried safe mode but no luck

Unfortunately, you cannot recover a deleted backup, because there is no backup for backups. I am very sorry for you.

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Accidentally removed /var/db, please help to recover

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