NetScaler firmware upgrade to 13.1-42.47 or later versions failing from GUI

Workaround: Below are the available workarounds.

Option-1:

Upgrade NetScaler using CLI (reference article – https://support.citrix.com/article/CTX337105/how-to-upgrade-adc-netscaler-from-cli)

Can use WinSCP or other known utility to upload 13.1-42.47 or later firmware to NetScaler using SFTP. Alternatively SCP command can be used to upload the firmware to the NetScaler

Option-2:

Upgrade NetScaler using GUI after increasing cache limit

1. Login to CLI
2. move to shell
3. cd /usr/local/lib
4. vi php.ini and change upload_max_filesize to 1485760000
5. Save(wq!)
6. Move to cd /etc
7. Open vi httpd.conf and search LimitRequestBody, uncomment this param
8. Change the size to 1500000000 and save(:wq!)
9. Restart apachectl using command “apachectl restart”