I'm the maintainer of the G4L disk imaging project since 2004, and I use Fedora as the build platform. Currently using Fedora 27. Have an issue from a user that has me baffled, so am hoping someone here might provide some guidance. The program boots a linux kernel, and basically uses dd to copy the disk/partitions thru a compression program and creates an image file on ftp server or local device. I don't have any physical nvme disks, but using virtualbox I created a 4M disk, and 2 - 2M partitions within it. In testing that, the 4M disk compresses to a 30K file, and the 2M partitions compress to about 15K each. That is what is expected with cleared partitions. The user though, with a real 256G disk doesn't seem to get any compression of the disk or partitions. Them resulting images are close to the same size as the disks or partitions?? He can mount the partitions and see the files, so there must be something going on that I don't see? Would think that accessing the /dev/nvme0n1 or partitions /dev/nvme0n1p1 thru p5 would act the same as accessing /dev/sda or /dev/sdax partitions. The images that are created pass the compression program test, so it is reading data, but in some form that doesn't compress much, and user has used a program to clear the unused space? Thanks for your time, and any ideals. +------------------------------------------------------------+ Michael D. Setzer II - Computer Science Instructor (Retired) mailto:mikes@xxxxxxxx mailto:msetzerii@xxxxxxxxx Guam - Where America's Day Begins G4L Disk Imaging Project maintainer http://sourceforge.net/projects/g4l/ +------------------------------------------------------------+ http://setiathome.berkeley.edu (Original) Number of Seti Units Returned: 19,471 Processing time: 32 years, 290 days, 12 hours, 58 minutes (Total Hours: 287,489) BOINC@HOME CREDITS ROSETTA 65094199.902703 | ABC 16613838.513356 SETI 109335656.779734 | EINSTEIN 140992828.999240 _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
