[mythtv-users] failure on v31 mythplugins on clean install

[Mike Bibbings]

On 07/03/2020 20:24, Bill Meek wrote:
> On 3/6/20 8:57 AM, James Abernathy wrote:
>>
>>> On Mar 6, 2020, at 9:40 AM, Bill Meek <keemllib at gmail.com> wrote:
>>>
>>> On 3/6/20 5:35 AM, Jim Abernathy wrote:
>>>> Since I had a problem upgrading mythweb on my development system 
>>>> again, I tried a fresh build. I wiped the hard drive and 
>>>> reinstalled Ubuntu 18.04.4 and then mythtv.
>>>> However, when I got to mythplugins I got this error on mythweb:
>>>> Selecting previously unselected package mythweb.
>>>> Preparing to unpack 
>>>> .../117-mythweb_2%3a31.0+fixes.202003051106.1460627~ubuntu18.04.1_all.deb 
>>>> ...
>>>> /var/lib/dpkg/tmp.ci/preinst: 7: /var/lib/dpkg/tmp.ci/preinst: php: 
>>>> not found
>>>
>>> ...
>>>
>>> php again. Last time you reported, php was there because
>>> php -r 'echo PHP_MAJOR_VERSION, ".", PHP_MINOR_VERSION;'
>>> worked. I'll comment more in the the related thread
>>> this morning.
>>>
>>> php -r 'echo PHP_MAJOR_VERSION, ".", PHP_MINOR_VERSION;’ didn’t work 
>>> this time on a clean system with no mythplugins installed.
>>
>> I then installed php 7.2 and I could then install mythplugins correctly.
>>
>> I can’t say I know why, but this worked.  Hopefully all this will get 
>> fixed at some point for a clean install of mythtv and mythplugins on 
>> Ubuntu 18.04
>
> Spun up 18.04 today. php7.2 is installed OK. But, there's no entry for 
> php in /etc/alternatives.
>
> php7.2-cli.postinst has code that COULD installing alternatives. 
> Haven't found a solution
> yet. I was testing apt install mythweb though, not mythplugins.
>
>
Bill,

As you may have found out, the problem is due to php not having been 
installed at the time mythweb.preinst is run, so 
CURRENT_PHP_VERSION=$(php -r 'echo PHP_MAJOR_VERSION, ".", 
PHP_MINOR_VERSION;') fails as php not found:

Selecting previously unselected package mythweb.
Preparing to unpack 
.../123-mythweb_2%3a31.0+fixes.202003052109.7097da3~ubuntu18.04.1_all.deb 
...
/var/lib/dpkg/tmp.ci/preinst: 7: /var/lib/dpkg/tmp.ci/preinst: php: not 
found
dpkg: error processing archive 
/tmp/apt-dpkg-install-LbyUJ4/123-mythweb_2%3a31.0+fixes.202003052109.7097da3~ubuntu18.04.1_all.deb 
(--unpack):
  new mythweb package pre-installation script subprocess returned error 
exit status 127
postrm called with unknown argument `abort-install'
dpkg: error while cleaning up:
  new mythweb package post-removal script subprocess returned error exit 
status 1

command used sudo apt install mythtv mythplugins

sudo apt --fix-broken install (run it twice) followed by sudo apt 
install mythplugins seems to resolve.

I am not sure we even need mythweb.preinst to do anything as the only 
thing it does is move 20-mythweb.conf , which mythweb.postinst does 
anyway (but php should have been installed by this time)


Mike