[Samsung Galaxy S8+ ROMs, Kernels, Recoveries, & Ot] steven4107:
Hiya! I am having the same issue this guy was having. I tried a few different things I found in the form and i know I'm getting close! See below.

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dream2qltesq:/ # echo /data/local/tmp/remount2.sh > /sys/kernel/uevent_helper

dream2qltesq:/ # mount

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)

dream2qltesq:/ # sh /data/local/tmp/root.sh

cp: /data/local/tmp/systemroot/Superuser.apk: No such file or directory

cp: bad '/data/local/tmp/systemroot/Superuser.apk': No such file or directory

chmod: /system/app/SuperSU/SuperSU.apk: No such file or directory

chcon: /system/app/SuperSU/SuperSU.apk: No such file or directory

cp: /data/local/tmp/systemroot/install-recovery.sh: No such file or directory

cp: bad '/data/local/tmp/systemroot/install-recovery.sh': No such file or directory

chmod: /system/etc/install-recovery.sh: No such file or directory

chcon: /system/etc/install-recovery.sh: No such file or directory

rm: /system/bin/install-recovery.sh: No such file or directory

cp: /data/local/tmp/systemroot/su: No such file or directory

cp: bad '/data/local/tmp/systemroot/su': No such file or directory

cp: /data/local/tmp/systemroot/su: No such file or directory

cp: bad '/data/local/tmp/systemroot/su': No such file or directory

cp: /data/local/tmp/systemroot/su: No such file or directory

cp: bad '/data/local/tmp/systemroot/su': No such file or directory

cp: /data/local/tmp/systemroot/su: No such file or directory

cp: bad '/data/local/tmp/systemroot/su': No such file or directory

chmod: /system/bin/.ext/.su: No such file or directory

chmod: /system/xbin/daemonsu: No such file or directory

chmod: /system/xbin/sugote: No such file or directory

chcon: /system/bin/.ext/.su: No such file or directory

chcon: /system/xbin/daemonsu: No such file or directory

chcon: /system/xbin/sugote: No such file or directory

cp: /data/local/tmp/systemroot/supolicy: No such file or directory

cp: bad '/data/local/tmp/systemroot/supolicy': No such file or directory

chmod: /system/xbin/supolicy: No such file or directory

chcon: /system/xbin/supolicy: No such file or directory

cp: /data/local/tmp/systemroot/libsupol.so: No such file or directory

cp: bad '/data/local/tmp/systemroot/libsupol.so': No such file or directory

chmod: /system/lib64/libsupol.so: No such file or directory

chcon: /system/lib64/libsupol.so: No such file or directory

/data/local/tmp/root.sh[52]: can't create /data/.supersu: Permission denied

chmod: /data/.supersu: No such file or directory

./system/xbin/su: invalid uid/gid '--install'

Here is where my phone just died. It immediately restarted and kicked me back to my ATT logo and it never leaves there... Any idea what I'm messing up?

Thank you in advance