On 1/29/20 12:34 PM, Jerry Geis wrote: > Sorry for the noise... My machine must not be working. I copied the iso to > > another machine, did the same command as always and worked just fine. not > > sure what is up with my normal box. Has always worked before. > [problem with my subscription, sorry if this is a duplicate.] Just a suggestion - look for "large" files in /dev/ on your old machine. An incorrect output file name will leave a big file there, rather than write to the device you intended. Something like: find /dev -size +1G -ls I use the dd option 'oflag=direct' to do direct I/O on the output. Eliminates the need for sync. Coupled with 'status=progress' you can get a real indication of how fast your storage device is. dd bs=4M oflag=direct status=progress if=some.iso of=/dev/sdX