Removable USB stick listed as non-removable in /sys/block?

Ok, so to pull this in a list, you can use the same command I gave you before, but just drop the removeable requirement:

% for blk in $(lsblk -ndo name) ; do > udevadm info --query=all --name "$/dev/$blk" |\ > grep -q ID_BUS=usb && printf \ > 'findmnt %s -no TARGET ;'\ > "/dev/$blk" /dev/"$blk"[0-9] > } ; done 2>&- |. /dev/stdin 

It's no big deal - it will now only output active mountpoints for block devices on the usb bus and I, for one, can't think of many examples of non-removable usb block devices anyway.

Regarding why your current device does not register as removeable, the most likely answer is that its driver simply doesn't list it that way. When devices are detected by udev it pulls in information on them as soon as it can based on its rules database. You can see all of those classifications with:

% udevadm info --query=all --name /dev/$BLOCK_DEVICE 

That will return a list of all of the key=value entries the system uses to classify the hardware referenced by /dev/$BLOCK_DEVICE. At the bottom of this post slm advises how this information can be easily parsed to serve your needs - and it's pretty simple indeed. The documentation rightly describes it as "human-readable, grep-friendly." Above I filter all block devices to only those on the usb bus with:

% grep -q ID_BUS=usb 

You can also attribute-walk all the way up the device tree for your current device and another whose attributes you think it should reflect. If it doesn't, it is because udev assigned it differently than you think it should have. Thankfully, though, you can see every datapoint that affected its assignment with:

udevadm info --attribute-walk --name /dev/$BLOCK_DEVICE 

You can use this data to model new assignment rules as you please.

This is F. Hauri's answer adapted for kdialog:

#!/bin/bash DIALOG=kdialog usbKeyChoose() { while [ ! -b /dev/$STICK ] ;do USBKEYS=($( xargs -n1 readlink < <(echo /sys/block/*) | sed -ne 's+^.*/usb[0-9].*/\([^/]*\)$+/sys/block/\1/device/uevent+p' | xargs grep -H ^DRIVER=sd | sed s/device.uevent.*$/size/ | xargs grep -Hv ^0$ | cut -d / -f 4 )) if [ ${#USBKEYS[@]} -eq 0 ];then title="No key found" else title="Choose wich USB stick have to be installed" fi menu=(R "Re scan devices") i=0 for dev in ${USBKEYS[@]} ;do read model </sys/block/$dev/device/model #echo $i $dev "$model" menu+=("$i" "$dev $model") i=$[i + 1] done num=$($DIALOG --menu "$title" "${menu[@]}") #echo "num=$num" #echo "USBKEYS[num]=${USBKEYS[num]}" if [ ! "$num" ] ; then echo "User aborted." exit 0; fi [ ! "$num" = "R" ] && [ "${USBKEYS[num]}" ] && STICK=${USBKEYS[num]} done; } usbKeyChoose echo $STICK