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<div><span class="gmail_quote">On 3/31/07, <b class="gmail_sendername">Michael T. Dean</b> <<a href="mailto:mtdean@thirdcontact.com">mtdean@thirdcontact.com</a>> wrote:</span></div>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">On 03/31/2007 07:00 PM, John Clonts wrote:<br>> On 3/28/07, Michael T. Dean <<a href="mailto:mtdean@thirdcontact.com">
mtdean@thirdcontact.com</a>> wrote:<br>> [snip]<br>>> using the "Delete All" button in mythtv-setup's Video Sources screen.<br>> [snip]<br>>> Definitely true. If you use "Delete All", Myth will take care of all
<br>>> the issues for you.<br>> I've wondered this for a while:<br>> 1) What is the difference between "Delete All" and "Delete All from Myth"<br><br>I'm guessing the hostname of your Myth box is "Myth." :)
<br><br>The Delete All buttons do truncates. "Delete all capture cards on<br><hostname>" deletes only those capture cards on this hostname (and,<br>therefore, does not do truncates--as there may be data for other hosts
<br>in there). So, even if you have only one host, there /is/ a difference.<br><br>Most of the time when people have issues with their capture card/video<br>source/input connections/channels configuration it's due to leaving
<br>around something that shouldn't be there.<br><br>"Delete all capture cards" truncates capturecard and cardinput<br>tables--meaning there's nothing left and you're starting from a clean<br>slate (including card ID's). Since mythtv-setup only displays info
<br>about those capture cards on /this/ host, there may be many you don't<br>see (this happens a lot for single combined frontend/backend setups when<br>people change hostname/IP address without following the instructions on
<br>the HOWTO - <a href="http://mythtv.org/docs/mythtv-HOWTO-23.html#ss23.15">http://mythtv.org/docs/mythtv-HOWTO-23.html#ss23.15</a> ).<br>"Delete all capture cards" will clear out those others, but "Delete all
<br>capture cards on <hostname>" won't.<br><br>As far as video sources go, there should only be a "Delete all video<br>sources" button (video sources are handled by the master backend and<br>don't apply to specific hosts). "Delete all video sources" will
<br>truncate channel, program, videosource, credits, programrating,<br>programgenres, dtv_multiplex, and cardinput. Again, the most common<br>problem with configuration of video sources/input connections/channels<br>is leaving something in the table that shouldn't be there (but that
<br>might not be visible through the interface because Myth thinks it's some<br>other hosts data or ...).<br><br>I shorten the button names to "Delete All" (and for capture cards say,<br>"and not the 'on this host' one") because I never can remember the exact
<br>wording and--to date--haven't felt it worthwhile to look them up every<br>time I type it (I post this suggestion a /lot/). If, however, you feel<br>that my suggestion is confusing, please let me know and I'll do better
<br>about using the exact wording.<br><br>> and<br>> 2) Is there any way to "Delete One". I've tried highlighting and and<br>> hitting delete, D, etc. but can't seem to do it.<br><br>You should be able to do so by just pushing 'D' (unless you've re-mapped
<br>key bindings). However, IMHO, doing so is only asking for trouble. :)<br>So, if you figure out how to make it work and someday you can't fix a<br>broken system using it, I never told you how to delete just one.<br>
<br>Mike</blockquote>
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<div>Thanks for the excellent explanation!</div>
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<p>John</p>
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