Burning your own Trisquel USB disk ================================= In this explanation, "USB disk" refers to any bootable USB memory device, such as the official wallet-sized card from the FSF, or a USB stick, or USB adapter for an SD/MMC flash memory. This directory contains the exact image file we burned onto the USB Membership cards: -rw-r--r-- 1 az az 4009754624 Jul 2 15:43 trisquel-6.0-4GB-membercard.dd -rw-r--r-- 1 az az 65 Jul 16 17:56 trisquel-6.0-4GB-membercard.dd.md5 You can download the image file and burn it onto any USB disk which has at least the amount of available space needed (4009754624 bytes) using these commands: umount /dev/sdN1 # also /dev/sdN2 etc if the disk has extra partitions dd if=trisquel-6.0-4GB-membercard.dd of=/dev/sdN bs=3932656 md5sum /dev/sdN where sdN refers to the device name supplied by the system when you connect the USB disk to your computer, e.g., /dev/sdc or /dev/sdd. Be careful here if you have more than one disk attached, to be sure you are copying to the USB disk and not one of your other disks. Note that the dd command overwrites any partitioning previously on the USB disk, so don't do this if you have anything you wish to keep on the disk. Also note that this disk image is unpartitioned, meaning that it mounts as /dev/sdN rather than /dev/sdN1 and /dev/sdN2 as previous versions of the member card did. If the disk is larger than the image, use this command instead to check the integrity of the data: dd if=/dev/sdN bs=16777216 count=239 | md5sum 239+0 records in 239+0 records out 4009754624 bytes (4.0 GB) copied ac51f148340c9a9bca6647b080f8af36 - , 161.32 s, 24.9 MB/s (In this example, the output of md5sum was interposed in the output of dd; this is an accident of timing.) The md5sum test can only be used immediately after burning the image. Once the system mounts the USB disk it will probably rewrite some of the sectors on the disk (file system metadata), changing the MD5 signature.