Where does apt-cdrom put the release file?

Please help me use DVDs to install additional packages. I can do a clean install from DVDs, but not add additional packages. 'apt update' says it disables the DVDs because it cannot find their release files. My understanding, the purpose of 'apt-cdrom' is to save summary information from the D

USB controller resets when burning CD

Please help debug a communication problem with my TEAC DV-W5000U CD/DVD burner. It read and wrote reliably with my 686 PC. I retired that machine, and recently tried to move the burner to one of my 64-bit computers. It reads reliably, but when writing, fails after transferring approximately 150

Re: USB controller resets when burning CD

Thanks. That is good advice for a drive that gets its power from the USB port. I should have mentioned this particular drive has its own power supply. On Fri, 22 May 2020, Dan Ritter wrote: My nearly baseless suspicion: the drive needs more power than it is getting from this USB port. Sugges

Re: USB controller resets when burning CD

line of products was the DV-W5000S. A standalone machine with built-in go/nogo display for verifying disks burned on another drive. No computer required! On Fri, 22 May 2020, Thomas Schmitt wrote: Hi, David Farrier wrote: will use cdrskin as an example, as I think its error messages more

Re: USB controller resets when burning CD

deloptes wrote: I would suggest try using usb2 port if the PC has one or unloading the xhci_hcd. Your old pc did not have usb3 for sure and you reported it worked well there. Unfortunately, trying different USB ports does not make any difference, as all my external USB ports belong to the sa

Re: USB controller resets when burning CD

deloptes wrote: Unfortunately, trying different USB ports does not make any difference, as all my external USB ports belong to the same controller. Would like to try your other suggestion, unloading xhci_hcd and let the system fall back to ehci_hcd. How do I do that? I tried blacklisting xh

Re: USB controller resets when burning CD

Since cdrskin-1.5.2 you can inquire whether the drive announces its internal bus controller type and its firmware timestamp: cdrskin dev=/dev/sr0 --list_features | fgrep PhysInterface= cdrskin dev=/dev/sr0 --list_features | fgrep Date= I installed Debian "testing" on an external drive. Main

Re: Re: USB controller resets when burning CD

I now have a workaround for my problem with the Teac W5000U DVD drive and 64 bit computer. Was somewhat hard to find, but I obtained a USB controller card new enough to be PCI express but old enough not to support USB 3.0. So far, have not suffered any more controller resets. The card uses the eh