All you need to do is, just install Linux Mint on new computer.
Backup you data from Open EMR.
INSTALL OPENEMR 5.0.1 ON MINT
OpenEMR 5.0.1 Ubuntu-Debian Package Installation with PHP7
INTRUCTIONS FOR INSTALL:
https://www.open-emr.org/wiki/index.php/OpenEMR_5.0.1_Ubuntu-Debian_Package_Installation_with_PHP7
THEN FALLOW RESTORE PROCEDURE BELOW
https://www.open-emr.org/wiki/index.php/Backing_Up_Using_the_Built_In_Tools
- Restore script can be found in openemr/contrib/util as an executable file.
- Copy emr_backup.tar and restore script to the home directory.
OPEN TERMINAL
sudo ./restore
/home/your home directory username/emr_backup.tar
in gaglae
/var/www/openemr/gacl.
Terminal Output
nerik@nerik:~$ sudo ./restore
WARNING: This script is experimental.
It may have serious bugs or omissions.
Use it at your own risk!
Now you will be asked for the backup file.
By default this is named emr_backup.tar, although you may have saved it as something else.
Enter path/name of backup file: /home/nerik/emr_backup03262020.tar
Extracting /home/nerik/emr_backup03262020.tar …
tar: Substituting `.’ for empty member name
Extracting /tmp/emr_backup/openemr.tar.gz …
Extracting /tmp/emr_backup/phpgacl.tar.gz …
tar: Substituting `.’ for empty member name
Do you want to specify site ID, locations or database names for the restore? [N/y] Y
Current values are shown in [brackets]. Just hit Enter to leave them as-is.
Site ID [default]? - enter
OpenEMR database name [openemr]? - enter
OpenEMR database user [openemr]?- enter
OpenEMR database password [escargot]?- enter
New OpenEMR web directory [/var/www/openemr]?- enter
New phpGACL web directory [ $phpgacl_location = dirname(FILE).’/…/gacl’;]? /var/www/openemr/gacl.
If you have a particular requirement for the UTF-8 collation to use,
then please specify it here. Hit Enter to accept the default ‘utf8_general_ci’.
Enter ‘none’ if you do not want UTF-8.
UTF-8 collation [utf8_general_ci]?- enter
Your Site ID will be ‘default’.
I will install a new OpenEMR web directory ‘/var/www/openemr’ from the backup.
I will restore the OpenEMR database backup to the MySQL database ‘openemr’.
The OpenEMR database user will be ‘openemr’ with password ‘escargot’.
MySQL will use character set ‘utf8’ with collation ‘utf8_general_ci’.
I will copy the phpGACL web directory backup to ‘/var/www/openemr/gacl.’.
Please check the above very carefully!
Any existing databases and directories matching these names will be DESTROYED.
Do you wish to continue? [N/y] y
In order to create MySQL databases and users on this computer, I will need to
log into MySQL as its ‘root’ user. The next question asks for the MySQL root
user’s password for this server, the one that you are restoring to. This is
a MySQL password, not a system login password. It might be blank.
Enter the password, if any, for the MySQL root user:
Dropping old OpenEMR database if it exists …
Database “openemr” dropped
Restoring OpenEMR database …
mysql: [Warning] Using a password on the command line interface can be insecure.
mysql: [Warning] Using a password on the command line interface can be insecure.
mysql: [Warning] Using a password on the command line interface can be insecure.
Restoring OpenEMR web directory tree …
Modifying /var/www/openemr/sites/default/sqlconf.php …
Restoring phpGACL web directory tree …
Modifying /var/www/openemr/library/acl.inc …
All done. 
UPGRADE TO 5.0.2
Stable Production Release (Version 5.0.2)
https://www.open-emr.org/wiki/index.php/OpenEMR_Downloads
RENAME OPENEMR FOLDER TO OPENEMR_BK
DOWN LOAD: openemr-5.0.2.tar.gz
DOUBLE CLIC ON IT TO UNPACK IT
THAN MOVE IT IN TO VAR/WWW/
THAN GO TO OPENEMR_BK/SITES/DEFAULT/SQLCOFIG.PHP AND COPY IT
THAN GO TO OPENEMR SITES/DEFAULT/SQLCOFIG.PHP AND REPLACE IT
Copy following directories from openemr_bk to - openemr directory (copy in the same order as listed below):
openemr_bk/sites/default/documents (COPY TO) => openemr/sites/default/documents
openemr_bk/sites/default/edi (COPY TO) => openemr/sites/default/documents/edi
openemr_bk/sites/default/era (COPY TO) => openemr/sites/default/documents/era
openemr_bk/sites/default/letter_templates/custom_pdf.php (COPY TO) => openemr/sites/default/custom_pdf.php
openemr_bk/sites/default/letter_templates (COPY TO) => openemr/sites/default/documents/letter_templates
openemr_bk/sites/default/procedure_results (COPY TO) => openemr/sites/default/documents/procedure_results
THAN GO TO : http://localhost/openemr/sql_upgrade.php