Ubuntu
ubuntu-release-upgrader package

  1. Xenial (16.04)
  2. Bug #1640645
  3. Comment #3

Comment 3 for bug 1640645

Revision history for this message
Brian Murray (brian-murray) wrote : Re: subprocess installed post-installation script returned error exit status 2

Looking further in the log files multiple linux-image-4.4* packages are marked for upgrade e.g. "Unpacking linux-image-4.4.0-47-generic (4.4.0-47.68) over (4.4.0-47.68~14.04.1)". However, packages marked for upgrade and not included when calculating the amount of free space needed in boot so we have the following:

2016-11-09 18:57:31,611 DEBUG dir '/boot' needs '0' of '<DistUpgrade.DistUpgradeCache.MyCache.checkFreeSpace.<locals>.FreeSpace object at 0x7fe166fe1be0>' ( 51766272.000000)

It's not clear to me if any free space is actually required in boot to upgrade the kernel.