Hi, Andrew M.A. Cater wrote: > > dd if=[iso] of=/dev/sdX bs=4M oflag=sync status=progress
[email protected] wrote: > Yes, thereabouts. [...] For those who do not trust themselves to choose the right /dev/sdX i have prepared a script which asks for plugging in the USB stick and then uses the newly appeared device file in the output of lsblk. https://wiki.debian.org/XorrisoDdTarget It is meanwhile in Debian Testing https://packages.debian.org/unstable/xorriso-dd-target but can also be downloaded for other Linux systems from https://dev.lovelyhq.com/libburnia/libisoburn/raw/master/xorriso-dd-target/xorriso-dd-target https://dev.lovelyhq.com/libburnia/libisoburn/raw/master/xorriso-dd-target/xorriso-dd-target.sig It also unmounts possibly the possibly automounted filesystems on the USB stick and overwrites a possible GPT backup header at the end of the device. Like sudo /bin/umount /dev/sdd1 sudo /bin/umount /dev/sdd2 sudo /bin/umount /dev/sdd3 sudo /bin/dd if=/dev/zero of=/dev/'sdd' bs=512 seek='7864318' count=1 status=none sudo /bin/dd if='debian-10.0.0-amd64-netinst.iso' bs=1M of=/dev/'sdd' status=progress oflag=dsync ; sync > The default, 512, is definitely too small for somewhat-more-or-less > current-ish [1] hardware configurations. I guess dd is from a time when the drives were so slow that this did not matter. There are meanings attributed to the block size which matter with (at least) conv={block,unblock,sync}. So changing the default bs= might break very old and venerable scripts. Have a nice day :) Thomas
