I am expecting the worst, but hoping for a miracle here.
Basically while rebooting my system, the computer goes into emergency mode. I’ve tried to use all the advanced options, but none work.
I’m sure this has something to do with the fact I as partitioning a USB before hand. I was attempting to create a bootable iso for my son’s Windows computer. After repartitioning I was using woe to create the bootable USB, but it gave a failure warning saying the device was already mounted, yet it was unmounted. I verified by unmounting with gparted.
After trying various fixes unsuccessfully, I decided to reboot the computer and try again and that’s when the system crashed.
For what it’s worth, I’ve used gparted many times and I’m sure I was only working on the USB.
Normally I always “safely remove” any USB I’m using before I take it out. In this case I left it in the computer when I shut down, because I wondered if it wasn’t properly unmounting. The reason I rebooted was to hopefully unmount it for sure.
After I ended up in emergency mode, then I did remove the USB to see if that would help. Of course at that time there was no option to use the “safe removal” feature.
Your description suggests to me you need to repair your bootloader by booting 15.0 installation media, without the USB stick attached, choosing to boot installed system. Once booted, you need to use YaST to reconfigure the bootloader. YaST should be able to fix it simply by your opening it and making any kind of change to any setting. Typically the safest and easiest change to make is to increment or decrement the timeout value by one second, and then exit with save.
By installation media he means the .iso you can download for installation, to be transferred to an USB-stick or DVD… But I don’t see where you can find the YaST in this option, never tried. But the internet is full of descriptions how to fix Grub2 using a rescue system from installation media…
I’m guess that’s your USB drive. Your “/etc/fstab” requires that at boot. If you are able to boot to rescue media, and edit that file, I suggest that you comment out that line (insert the ‘#’ character at the beginning).
The second code gave the error: "can’t find command ‘grep’.
That’s because you are stuck at grub, and are not fully into your system.
Your journal image is not all that useful. However, it suggests that you got far enough that you might be able to boot to a command line.
Try booting again. When you see the grub menu, hit the ‘e’ key. Then scroll down until you find a line that begins with “linux” (or maybe “linuxefi”). Hit the END key to get to the end of the line. Insert " 3" (without the quote). That’s to put a “3” at the end of the boot line. Then try CTRL-X, and see if it boots you to a command line. Best to have that USB device plugged in when trying that.
If you succeed, then login as root and edit “/etc/fstab”. You probably have “nano” there as a simple editor. And just insert that “#” character at the beginning of the line for “/dev/sdb1”.
Unsuccessful. I was able to boot then edit and add the 3 as you suggested, but when I booted from there it took me back to the same emergency mode screen. Unable to actually boot in a way to login or use a simple editor.
Is there a way to add the “#” from the grub command line? Other ideas?
I don’t know if it is possible to edit via the grub minimal shell, but I doubt it.
The other way is to boot your install media. One of the boot menu choices there, should to boot the rescue system. Once in the rescue system, you can login as root (no password needed), mount the file system and edit “/etc/fstab” (which would probably be “/mnt/etc/fstab”).
Please clarify the code I should be using. It is: “/mnt/etc/fstab”?
You must first mount your root partition. That would be something like:
mount /dev/sda3 /mnt
Except it might not be “/dev/sda3”. The output from:
parted /dev/sda print
might help you identify the partition to mount. It will be the one using “btrfs”.
With that mounted, edit “/mnt/etc/fstab”. But the rescue system might have only limited editors. I normally use “vi”, but that might be hard if you are not familiar with “vi”
Scroll down to the line that begins with “/dev/sdb1”.
Hit the “i” key (for insert mode).
Hit the “#” key to insert the “#” character.
Hit the ESC key to get out of insert mode.
And then try “:wq” (without the quotes). The “:” should move the cursor to the bottom left for entering a command. And then the “wq” says “write and quit”, so it should save your changes and exit.
shutdown -r now
should attempt to reboot.
I have to get some sleep now. I’ll check in the morning to see if you have posted anything.