=====Repair File-system Issues at Boot=====

to fix stuff you need to get in to emergency mode. For this you will need the root password

To boot into emergency to you to interrupt the boot and **edit** the line in grub that begins with linux.  append **systemd.unit=emergency.target**

for example
<code>LINUX=crashkernel=1G-4G:192M,4G-64G:256M,64G-:512M resume=/dev/mapper/rhel-swap \
 rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap rhgb quiet systemd.unit=emergency.target</code>

remount system as rw
<code> mount =o remount,rw /sysroot </code>

change root to /sysroot
<code>chroot /sysroot </code>

try seeing what is mounting or giving errors using the **av** options of mount