chroot to other linux drive from img

┌──(root㉿NaruZKurai)-[~] └─# mmls flag_drive.img 
 mmls flag_drive.img 
 
 DOS Partition Table
Offset Sector: 0
Units are in 512-byte sectors

     Slot      Start        End          Length       Description
000:  Meta      0000000000   0000000000   0000000001   Primary Table (#0)
001:  -------   0000000000   0000002047   0000002048   Unallocated
002:  000:000   0000002048   0000206847   0000204800   Linux (0x83)
003:  000:001   0000206848   0000411647   0000204800   Linux Swap / Solaris x86 (0x82)
004:  000:002   0000411648   0000819199   0000407552   Linux (0x83)
 
 ┌──(root㉿NaruZKurai)-[~] └─# 
 sudo mkdir /mnt/flag_drive
 
 sudo mount -o loop,offset=$((2048*512)) flag_drive.img /mnt/flag_drive #Linux (0x83) is after offset 2047 *512 bytes  so 2048
 
 sudo mount -t proc /proc /mnt/flag_drive/proc
 
 sudo mount -o bind /sys /mnt/flag_drive/sys
 
 sudo mount -o bind /dev /mnt/flag_drive/dev
 
 sudo chroot /mnt/flag_drive #possibly need to add /bin/bash or /bin/sh or depending on the operating system fish or ash or whatever else that system uses. look in /bin/ to see what shell it uses
 
 #and just coz im hella forgetfull 
 find / -type f -name "*words*" 2>/dev/null
 
 #im serious super forgetfull 
 grep -R "picoCTF{" / 2>/dev/null