I want to run letsencrypt-auto but there comes the error: IOError: [Errno 28] No space left on device You are using pip version 8.0.3, however version 8.1.2 is available. You should consider upgrading via the 'pip install --upgrade pip' command.
and a really long stacktrace.
I have pip 8.1.2 but there it shows 8.0.3.
And I have over 100GB free space!
Today I got a really weird error on my Debian "Squeeze" Linux box -- a processes tried to write a temp file, and it complained that there was No space left on device.
The weird thing is, just yesterday my root parition was full, and I had made about 7GB free space in it.
I checked, there was still plenty of room today. But behold:
$ df -h /tmp/
Filesystem Size Used Avail Use% Mounted on
overflow 1.0M 632K 392K 62% /tmp
So, suddenly my /tmp/ directory was a ram disc with just 1MB of space. And it didn't show up in /etc/fstab, so I had no idea what cause it.
After googling a bit around, I found the likely reason: as a protection against low disc space, some daemon automatically "shadows" the current /tmp/ dir with a ram disc if the the root partition runs out of disc space. Sadly there's no automatic reversion of that process once enough disc space is free again.