Always
lsblk
beforedd
. The order of /sdX might change from boot to boot. Only /nvme doesn’t change.IMHO, it was a mistake to make USB block storage use the same line of names also used for local hard disks. Sure, the block device drivers for USB mass storage internally hook into the SCSI subsystem to provide block level access, and that’s why the drives are called sd[something], but why should I as an end user have to care about that? A USB drive is very much not the same thing for me as a SCSI harddisk. A NVMe drive on the other hand, kinda sorta is, at least from a practical purpose point of view, yet NVMe drives get a completely different naming scheme.
That aside, suggest you use lsblk before dd.
Yeah lsblk, lsscsi, fdsik -l , go have a coffee, come back later and hit enter on dd
Yeah lsblk, lsscsi, fdsik -l , go have a coffee, come back later and hit enter on dd
Then realize you typed the command wrong and panic when you don’t get an error.
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ls /dev > /tmp/before
<insert usb>
ls /dev > /tmp/after
<repeat two more times>
diff /tmp/before /tmp/after
<sweating>
Commands like
dd
are the best. Good ole greybeard-era spells with arcane syntax and the power to casually wipe out the whole universe (from their perspective ofc) if used haphazardly or not in respectful manner.What do you mean? Explicitly having to set
if=
andof=
is way harder to screw up than mixing up the order of arguments for e.g.cp
.Unless you forget what if and of mean. With
cp
it’s simply “cp what where”. Never had problems remembering that.