Oh god, my usb is not getting mounted now
mount: /mnt/usb is not a block device
[root@ash aisha]# mount /dev/sdb1 /mnt/usb
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so