iTunes is currently downloading software for the iPad "iPad".
has been displayed for more than an hour. (Second update at end.)
Where does iTunes save iOS updates? suggests that the update should be less than a gigabyte and should be put in
~/Library/iTunes/iPhone Software Updates—which is currently empty, owned by me, and writable. UPDATE: There must be either another temporary location, or the 1440-byte packets were something else. Because now (26 minutes later) that directory is 2.6 GB.
tcpdump -vv shows that I am fetching packets of 1440 bytes from
ussea4-vip-bx-006.aaplimg.com.http at about 1.3 GB per hour. And responding to each with a packet of length zero on the same port. (No other packets are shown on any other port, which seems odd.)
sudo lsof have no output—what's up with that?
What is actually happening and what do I do about it?
Latest iTunes and MacOS; IOS 12.4.1
UPDATE TWO: The "iTunes is downloading and will install" went away with no diagnostics, and then iTunes told me that an update is available and do I want to download and install it? (Same question I already answered.). iPad is still 12.4.1. The download filename was
iPad_64bit_TouchID_ASTC_13.1.1_17A854_Restore.ipsw which grew to 3585 MB and stopped. Clicked update again and iTunes started a new file called
.download was not there the previous time.
There were no other files in that directory during the previous attempt although there had been several attempts the day before.
Attempts to have the iPad update itself never got past "update requested" over a several-hour wait. The following things failed to help:
- turning WiFi off and on in the iPad
- rebooting the router and iPad at the same time
- shutting down anything possibly competing for bandwidth
- plugging it into power.
- shut down and restart
- hard reset
- resetting network
- removing used apps to free up four gigabytes of storage (with thirty already free)
- looking for the update in "storage" to delete it (it wasn't there
- asking iTunes to fix it in DFU mode
Five of these suggestions were found on several identical web pages, each finishing with the suggestion that I fix it by running their app. Looked like all these apps were repackaging of the same thing, which reeks of malware or spyware.