I had kali working fine, so i tried to follow the persistence guide (was using a raspi for partitioning & failed to mount). I accidently mounted /dev/sda3 /mnt/my_usb (sda vs sdb) <-- this causing error?

Once partitioned, i plugged usb and booted to kali persistence mode. It was very slow booting and i received the attached error during boot:

Fat-fs (sdb2): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.

Mount: Mounting /dev/sda3 on /live/persistence/sda3 failed: No such device

mount: Mounting /dev/sda on /live/persistence/sda failed: No such device

mount: Mounting /dev/sdb on /live/persistence/sdb failed: No such device

mount: Mounting /dev/sr0 on /live/persistence/sr0 failed: No such device

my fdisk -l:
/dev/sda1 & sda2 & sda3 (500 gb laptop hdd)

/dev/sdb1 "hidden hpfs/ntfs" 4gb
/dev/sdb2 "fat12" (xxx mb)
/dev/sdb3 "linux" 12gb

kali runs and operates, just a little slower than before. Is there an easy way to fix those errors during boot?