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AP gone after upgrade
Just did an apt-get update/upgrade and now the Pi access point isn't there anymore. There was a warning about hostapd which I didn't pay much attention to, installing this by the looks of it >
hostapd:armhf (2:2.4-1+deb9u2, 2:2.6-21~bpo9~rpt1)
Anyone else seen this? Is there an easy fix?


Start-Date: 2019-03-10  11:09:59
Commandline: apt-get upgrade
Requested-By: pi (1000)
Upgrade: vlc-bin:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), vlc-plugin-video-output:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), vlc-plugin-samba:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), vlc-plugin-qt:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), libpixman-1-0:armhf (0.34.0-1, 0.34.0-1+rpi1), vlc-plugin-skins2:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), vlc-plugin-visualization:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), vlc-l10n:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), openssh-sftp-server:armhf (1:7.4p1-10+deb9u5, 1:7.4p1-10+deb9u6), vlc-plugin-notify:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), libvlc5:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), piclone:armhf (0.11, 0.12), libvlccore9:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), libvlc-bin:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), telegraf:armhf (1.9.5-1, 1.10.0-1), ssh:armhf (1:7.4p1-10+deb9u5, 1:7.4p1-10+deb9u6), vlc:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), vlc-data:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), libsdl1.2debian:armhf (1.2.15+dfsg1-4+rpt1, 1.2.15+dfsg1-4+rpt2), wpasupplicant:armhf (2:2.4-1+deb9u2, 2:2.6-21~bpo9~rpt1), openssh-server:armhf (1:7.4p1-10+deb9u5, 1:7.4p1-10+deb9u6), openssh-client:armhf (1:7.4p1-10+deb9u5, 1:7.4p1-10+deb9u6), hostapd:armhf (2:2.4-1+deb9u2, 2:2.6-21~bpo9~rpt1), vlc-plugin-video-splitter:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), vlc-plugin-base:armhf (3.0.6-0+rpt3+deb9u1, 3.0.6-0+rpt4+deb9u1), wireless-regdb:armhf (2016.06.10-1, 2018.05.09-0~rpt1)
End-Date: 2019-03-10  11:11:47

That was easy Cool

$ sudo su
# apt-cache madison hostapd
hostapd | 2:2.6-21~bpo9~rpt1 | stretch/main armhf Packages
hostapd | 2:2.4-1+deb9u2 | stretch/main armhf Packages
# apt-get install hostapd=2:2.4-1+deb9u2 -V

Back in action again.

sudo systemctl enable hostapd.service
seems to work as well without rolling back.
I have the same. Clicked to fast and the message was gone.
I remember some lines about config files being moved to an other directory

What you suggest is an rollback of the AP software. Isnt it better to move the config files?
As was said in the thread that you posted on, what worked for me was uninstalling hostapd and re-installing it.
Confirmed, I used remove instead of purge to hold the config files.

sudo apt-get remove hostapd
sudo reboot
sudo apt-get install hostapd

To enable at startup:
sudo update-rc.d hostapd enable
sudo reboot
I’m having the upgrade failing on hostapd

Tried the above but the reinstall fails with ‘exit code’ error

Any suggestions?
(03-15-2019, 07:16 AM)Sderbyshire Wrote: I’m having the upgrade failing on hostapd

Tried the above but the reinstall fails with ‘exit code’ error

Any suggestions?

Maybe try running this in a terminal first ( from link in the first post) then run the upgrade?

sudo apt-mark hold hostapd
Thanks for this! As my hdmi output is damaged I had to use a serial console to install the correct hostapd.
I successfully upgraded hostapd to the correct version, 2:2.4-1+deb9u2, and held it

The upgrade then worked successfully

For completeness i then installed usbmuxd and this allowed an iphone to be tethered for mobile internet access.

Thanks for the help guys!
Thanks saved a lot of time, if only i had looked here first.
Thanks @KolonelP 
that procedure fixed the problem (uap0 disassociated after raspbian upgrade) for me as well!

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