I am trying to update a certificate. I generated CSR, got the cert and when i try to upload the file or paste the text, i get following message "File upload failed, please check log file for details".
Also, i checked /var/log, ltm, messages etc, i didn't find any relevant logs for this.
Do you have enough disk space on your BIG IP ?
Try to launch the following command
And verify that there are available space. If you discover that one of the filesystem has a high percentage of used space, you need to delete or increase the space assigned to that particular file system.
Check this documentation : https://support.f5.com/csp/article/K14403
If it is not a disk space issue, try the import of the cert. by command line check this article
Waiting for your feedback
check the /shared/tmp directory. And ensure the permission of this directory is set to 777.
# ls -ld /shared/tmp
drwxrwxrwt. 23 root root 24576 2019-06-11 17:40 /shared/tmp
If not set to 777. Change to 777 using chmod command;
# chmod 777 /shared/tmp