I can't seem to get any of my PIs to update, i'm fairly sure this isn't a network issue on my end as this happens on raspberries both at my hope (fiber gigabit) and at our production facility many miles away. Those aren't raspberries from the same batch nor even running the same iso. All of them are raspberries 2 however and all of them have been burned from some form of raspbian downloaded from the raspberry website.
I'm getting the following output and i'm at loss about what i could do to fix it :
sudo rpi-update -y
*** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
*** Performing self-update
*** Relaunching after update
*** Raspberry Pi firmware updater by Hexxeh, enhanced by AndrewS and Dom
*** Downloading specific firmware revision (this will take a few minutes)
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 130 0 130 0 0 279 0 --:--:-- --:--:-- --:--:-- 364
100 9 100 9 0 0 9 0 0:00:01 --:--:-- 0:00:01 27
gzip: stdin: not in gzip format
tar: Child returned status 1
tar: Error is not recoverable: exiting now
Update : note that neither fixes listed at the end of https://github.com/Hexxeh/rpi-update helped, i'm still getting the same error after syncing the time (which was already very close) as well as installing the ca package (which was already installed)