chill wrote: > So if /dev/mmcblk0 is a 16GB SD card, but I'm only using 1GB for the two > partitions, the 'bs' and 'count' options in dd allow me to make an image > that's only 1GB. If I use gzip to to make a compressed image of > /dev/mmcblk0, all the empty space after 1GB will compress down to > virtually nothing, > That's only the case if the sd card hasn't held any data in that "empty space" previously, as deleting files/partitions/etc doesn't physically set the card's memory to zero - you'd have to explicitly do so (dd if=/dev/zero ...) One of the advantages of fsarchiver is that it will only image the used data of a partition, avoiding this issue.
> > but what will happen if I try to decompress that image onto an SD card > that's smaller the 16GB? > No idea - I'd guess it would work SW: 'Web UI for LMS' (http://forums.slimdevices.com/showthread.php?98186-Announce-Alternative-Web-Interface-(beta)) | 'Playlist Editor / Generator' (http://forums.slimdevices.com/showthread.php?108199-Announce-LMS-Playlist-Editor) | 'Music Classification' (http://forums.slimdevices.com/showthread.php?108278-Announce-Essentia-Integration-music-classification-(moods-genres-)) | 'Similar Music' (http://forums.slimdevices.com/showthread.php?108495-Announce-LMSmusly-play-similar-music) | 'LMSlib2go' (https://www.nexus0.net/pub/sw/lmslib2go/) HowTos: 'build a self-contained LMS' (http://forums.slimdevices.com/showthread.php?99648-Howto-build-a-self-contained-LMS) | 'Ogg Opus' (http://forums.slimdevices.com/showthread.php?107011-Howto-play-Ogg-Opus-files) | 'Bluetooth/ALSA' (http://forums.slimdevices.com/showthread.php?107230-Howto-Bluetooth-streaming-to-from-LMS-(ALSA-only-no-PulseAudio)) ------------------------------------------------------------------------ Roland0's Profile: http://forums.slimdevices.com/member.php?userid=56808 View this thread: http://forums.slimdevices.com/showthread.php?t=110496 _______________________________________________ ripping mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/ripping
