Difference between revisions of "Amahi 8 Troubleshooting"
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| − | + | = New Install = | |
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| − | After performing the upgrade, the | + | == Could not resolve host: f21.amahi.org == |
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| + | If you get the error | ||
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| + | Could not resolve host: f21.amahi.org | ||
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| + | this is probably because the system did not get a network connection working. This could be for a number of reasons, including bad cabling, connecting the network cable to the wrong interface or driver incompatibility. Make sure your connectivity and drivers are working well with the OS. | ||
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| + | = Upgrade = | ||
| + | == Virtualization Stack Breaks DNS/DHCP Server == | ||
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| + | This happens on some Fedora 19 to 21 upgrades, but also after installing desktop components or VNC. | ||
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| + | After performing the upgrade, the DHCP/DNS server is not functional. | ||
To verify if the service is functional do the following from a command line: | To verify if the service is functional do the following from a command line: | ||
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</div> | </div> | ||
| − | If its not working you will get a message | + | If its not working you will get a message similar to below with a '''failed''' status: |
<div style="border: 1px solid #A3B1BF; padding: .8em 1em; background-color: #E6F2FF; margin: 0px 1em;"> | <div style="border: 1px solid #A3B1BF; padding: .8em 1em; background-color: #E6F2FF; margin: 0px 1em;"> | ||
:<i>dnsmasq.service - DNS caching server. | :<i>dnsmasq.service - DNS caching server. | ||
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</i></div><br /> | </i></div><br /> | ||
| − | + | This may be caused somehow by libvirtd having being installed during the upgrade to F21. Unfortunately, libvirtd uses dnsmasq for virtual machines in a way that conflicts with Amahi 8. To verify this is the issue do the following commands: | |
<div style="border: 1px solid #A3B1BF; padding: .5em 1em; color: #000; background-color: #E6F2FF; margin: 3px 3px 1em 3px; text-align: left"> | <div style="border: 1px solid #A3B1BF; padding: .5em 1em; color: #000; background-color: #E6F2FF; margin: 3px 3px 1em 3px; text-align: left"> | ||
sudo lsof -i :53 | sudo lsof -i :53 | ||
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</div> | </div> | ||
| + | === The Work-around/Solution === | ||
if you see something like --conf-file=/var/lib/libvirt/dnsmasq/default.conf then you can fix the dnsmasq problem by issuing the following command and then rebooting. | if you see something like --conf-file=/var/lib/libvirt/dnsmasq/default.conf then you can fix the dnsmasq problem by issuing the following command and then rebooting. | ||
<div style="border: 1px solid #A3B1BF; padding: .5em 1em; color: #000; background-color: #E6F2FF; margin: 3px 3px 1em 3px; text-align: left"> | <div style="border: 1px solid #A3B1BF; padding: .5em 1em; color: #000; background-color: #E6F2FF; margin: 3px 3px 1em 3px; text-align: left"> | ||
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sudo reboot | sudo reboot | ||
</div> | </div> | ||
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| − | + | Back to the [[Troubleshooting]] page. | |
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Latest revision as of 00:14, 22 May 2018
Contents
New Install
Could not resolve host: f21.amahi.org
If you get the error
Could not resolve host: f21.amahi.org
this is probably because the system did not get a network connection working. This could be for a number of reasons, including bad cabling, connecting the network cable to the wrong interface or driver incompatibility. Make sure your connectivity and drivers are working well with the OS.
Upgrade
Virtualization Stack Breaks DNS/DHCP Server
This happens on some Fedora 19 to 21 upgrades, but also after installing desktop components or VNC.
After performing the upgrade, the DHCP/DNS server is not functional.
To verify if the service is functional do the following from a command line:
sudo systemctl status dnsmasq.service
If its not working you will get a message similar to below with a failed status:
- dnsmasq.service - DNS caching server.
- Loaded: loaded (/usr/lib/systemd/system/dnsmasq.service; enabled)
- Active: failed (Result: exit-code) since Tue 2015-09-08 10:38:40 MST; 6s ago
- Process: 7798 ExecStart=/usr/sbin/dnsmasq -k (code=exited, status=2)
- Main PID: 7798 (code=exited, status=2)
This may be caused somehow by libvirtd having being installed during the upgrade to F21. Unfortunately, libvirtd uses dnsmasq for virtual machines in a way that conflicts with Amahi 8. To verify this is the issue do the following commands:
sudo lsof -i :53
- COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
- dnsmasq 1308 nobody 6u IPv4 20640 0t0 UDP localhost.localdomain:domain
- dnsmasq 1308 nobody 7u IPv4 20641 0t0 TCP localhost.localdomain:domain (LISTEN)
ps -ef| grep <number in bold above>
- nobody 1308 1 0 10:04 ? 00:00:00 /sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --dhcp-script=/usr/libexec/libvirt_leaseshelper
- root 1309 1308 0 10:04 ? 00:00:00 /sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --dhcp-script=/usr/libexec/libvirt_leaseshelper
The Work-around/Solution
if you see something like --conf-file=/var/lib/libvirt/dnsmasq/default.conf then you can fix the dnsmasq problem by issuing the following command and then rebooting.
sudo systemctl disable libvirtd
sudo reboot
Back to the Troubleshooting page.
