I am trying to format an external drive, but getting the error
/dev/sdb1 is apparently in use by the system; will not make a filesystem here! Based on the internet, I have to
run cat /proc/mounts:
/dev/sda3 /media/backup fusebl w,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096 0 0 /dev/sdc1 /media/movies ext3 rw,relatime,user_xattr,barrier=1,nodelalloc,data=ordered 0 0 run mount:
/dev/sda3 on /media/backup type fuseblk (rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096) /dev/sdc1 on /media/movies type ext3 (rw,relatime,user_xattr,barrier=1,nodelalloc,data=ordered) Also fuser -v dev/sdb1 and nothing is using it.
I don't know what else to check to see why this is still in use.
I was able to run cfdisk on it, and remove the old (NTFS) partition and add a new one, but still cannot format.
