curl: (60) server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none

[dyrnq]

curl: (60) server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
More details here: http://curl.haxx.se/docs/sslcerts.html

curl performs SSL certificate verification by default, using a "bundle"
 of Certificate Authority (CA) public keys (CA certs). If the default
 bundle file isn't adequate, you can specify an alternate file
 using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
 the bundle, the certificate verification probably failed due to a
 problem with the certificate (it might be expired, or the name might
 not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
 the -k (or --insecure) option.

gzip: stdin: unexpected end of file
tar: Child returned status 1
tar: Error is not recoverable: exiting now

vagrant@ubuntu-xenial:~$ cat /etc/os-release 
NAME="Ubuntu"
VERSION="16.04.7 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.7 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial

[carica]

Please check:

1. Openssl version, which should be OpenSSL 1.0.2X. If so , please update to Ubuntu 16.04 Change Log
2. Certificates installed, specifically SRG_Root_X1 and DST_Root_CA_X3. If so, remove DST_Root_CA_X3 will do.
   I think Ubuntu 16.04 got this.

[dyrnq]

Please check:

1. Openssl version, which should be OpenSSL 1.0.2X. If so , please update to Ubuntu 16.04 Change Log
2. Certificates installed, specifically SRG_Root_X1 and DST_Root_CA_X3. If so, remove DST_Root_CA_X3 will do.
   I think Ubuntu 16.04 got this.

Great! I will try it. Thans a lot.