Penguin
Diff: CDWritingNotes
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Differences between version 38 and predecessor to the previous major change of CDWritingNotes.

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Newer page: version 38 Last edited on Thursday, June 16, 2005 5:06:19 pm by IanMcDonald Revert
Older page: version 37 Last edited on Wednesday, April 13, 2005 9:50:12 am by IanMcDonald Revert
@@ -157,7 +157,25 @@
  
 mkisofs will generate the boot.catalog file for you. Add '-dummy' to cdrecord if you want a test run first. If cdrecord doesn't know about your cdr then you'll need to add 'dev=x,y,z' and possibly 'speed=n'. If you just want to create the .iso file then you can use '-o boot.iso' with mkisofs instead of piping it to cdrecord. The '.' at the end of mkisofs is still required though. 
  
 There's a file 'README.eltorrito' in /usr/share/doc/mkisofs that explains how to do boot CDs. 
+  
+!! Writing out downloaded (ISO) CDs  
+  
+The command you want to use is something like:  
+<verbatim>  
+# cdrecord dev=/dev/cdwriter abc.iso  
+</verbatim>  
+  
+Where you substitute the device name of your CD writer and file you downloaded.  
+  
+If you do not run as root you get the following message:  
+<verbatim>  
+cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler  
+cdrecord: Permission denied. WARNING: Cannot set priority using setpriority().  
+cdrecord: WARNING: This causes a high risk for buffer underruns.  
+</verbatim>  
+  
+Basically you can still burn the CD but would recommend you don't do other things at the same time that hog CPU or else you may burn a coaster.  
  
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 CategoryDiskNotes