I installed Ubuntu 18.04 back in 2017 on 32 bits old laptop. I had to access my cd rom to look up some pictures and cd rom drive was not working. I went /etc/fstab file and monkey around without understanding. Ubuntu was not loading and I was receiving errors. I deleted the fstab file. Ubuntu will not load.The fstab file was saved as /etc/fstab~ under /etc file. I went to recovery modeand took fsck option the prompt came back with finished. I took resume option from recovery menu option. Ubuntu still was not not working. so rebooted in recovery mode and went to root prompt. I issue # mount -o remount,rw / and rebooted again. It is still not working.My fstab file looks as foollow:
# /etc/fstab:Static file system Information##Use 'blkid' to print the universally unique identifie for a#device;this may be used with UUID= as a more robust way to name devices#that works even if disks are added and removed. See fstab(5) .##<file system> <mount point> <type> <option> <dump> <pass>proc /proc proc nodev,noexec,nosuid 0 0# / was on /dev/sda1 during installaonUUID=bc092328-5f07-4614-bc9b-cfbb61fc8a7d / ext4 errors=remount-rw 0#swap was on /dev/sda5 during installaonUUID=6cb7cdbc-7666-48e0-8d34-efcd8c79f7a3 none swap rw 0 0#dev/cdrom /mnt/cdrom iso9660 auto,user 0 0#dev/hdc /media/cdrom0 udf ,iso9660 user 0 0#dev/cdrom /mnt/cdrom auto noauto,user 0 0#dev/sr0 /media/cdrom udf ,iso9660 user ,noauto 0 Permisssion for fstab are rwxrwxrwx. I ubuntu 16.04 cd but It will not boot. I am not sure if CD is bad or I did not mount correctly.