[Samsung Galaxy S8+ ROMs, Kernels, Recoveries, & Ot] ChrisJK7:
After typing in Mount in step 4 in part 1, I got this message when I'm pretty sure I wasn't supposed to:

rootfs on / type rootfs (rw,seclabel,size=1586716k,nr_inodes=396679)

tmpfs on /dev type tmpfs (rw,seclabel,nosuid,relatime,size=1657428k,nr_inodes=414357,mode=755)

devpts on /dev/pts type devpts (rw,seclabel,relatime,mode=600)

proc on /proc type proc (rw,relatime,gid=3009,hidepid=2)

sysfs on /sys type sysfs (rw,seclabel,relatime)

selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)

debugfs on /sys/kernel/debug type debugfs (rw,seclabel,relatime)

none on /acct type cgroup (rw,relatime,cpuacct)

none on /dev/stune type cgroup (rw,relatime,schedtune)

tmpfs on /mnt type tmpfs (rw,seclabel,relatime,size=1657428k,nr_inodes=414357,mode=755,gid=1000)

none on /config type configfs (rw,relatime)

tmpfs on /mnt/secure type tmpfs (rw,seclabel,relatime,size=1657428k,nr_inodes=414357,mode=700)

tmpfs on /mnt/secure/asec type tmpfs (rw,seclabel,relatime,size=1657428k,nr_inodes=414357,mode=700)

none on /dev/cpuctl type cgroup (rw,relatime,cpu)

none on /dev/cpuset type cgroup (rw,relatime,cpuset,noprefix,release_agent=/sbin/cpuset_release_agent)

pstore on /sys/fs/pstore type pstore (rw,seclabel,relatime)

tmpfs on /tmp type tmpfs (rw,seclabel,relatime,size=1657428k,nr_inodes=414357)

/dev/block/sda19 on /system type ext4 (rw,seclabel,relatime)

/dev/block/sda25 on /data type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc)

/dev/block/sda20 on /cache type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc)

/dev/block/sda23 on /nad_refer type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc)

/dev/block/sda5 on /persist type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc)

/dev/block/sdd7 on /dsp type ext4 (rw,seclabel,nosuid,nodev,relatime,data=ordered)

/dev/block/sda6 on /efs type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc)

/dev/block/sda15 on /firmware type vfat (rw,context=u:object_r:firmware_file:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)

/dev/block/sda16 on /firmware-modem type vfat (ro,context=u:object_r:firmware_file:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)

/dev/block/sda21 on /carrier type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc)

/dev/block/sda22 on /omr type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc)

tmpfs on /storage type tmpfs (rw,seclabel,relatime,size=1657428k,nr_inodes=414357,mode=755,gid=1000)

tracefs on /sys/kernel/debug/tracing type tracefs (rw,seclabel,relatime)

adb on /dev/usb-ffs/adb type functionfs (rw,relatime)

/dev/block/sda19 on /system/carrier type ext4 (ro,seclabel,relatime)

/data/media on /mnt/runtime/default/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,low_uid=1023,low_gid=1023,gid=1015,multi_user,mask=0006,reserved=20MB)

/data/media on /storage/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,low_uid=1023,low_gid=1023,gid=1015,multi_user,mask=0006,reserved=20MB)

/data/media on /mnt/runtime/read/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,low_uid=1023,low_gid=1023,gid=9997,multi_user,mask=0027,reserved=20MB)

/data/media on /mnt/runtime/write/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,low_uid=1023,low_gid=1023,gid=9997,multi_user,mask=0007,reserved=20MB)

Any fix to this or is this normal?