[lubuntu] Help! New Lubuntu 15.1 install won't boot after software update and apt-get update

I did a fresh erase disk and install of Wiley a yesterday and it's now dead after ruing apt-get update this moing.
Even yesterday problems were occurring with graphics crashes and a long boot time (9 mins). And previous to this install I had problems with 14.04 graphics and extreme boot times (20+ mins)

I didn't allow updates to run while installing 15.10 this time and got most videos streaming by installing flash plugin installer with synaptic. Then, in the evening, I allowed software updater to run and carried on using the system after reboot, but still seeing occasional graphics crashes. Long boots were only occurring on 14.04 only after long shut downs and the same thing happened this moing with the new system.
Which is why I finally decided to run apt-get update. I then rebooted and it failed. All I could do was take photos of what was on the screen. But When I tried to install Gimp a terminal popped up showing an error. I did as instructed, but afterwards, halfway through editing the images, I had a graphics and system crash. I still have the images, but I'm not starting Gimp again

First screen of the failed boot

BusyBox v1.22.1 (Ubuntu 1:1.22.0-15ubuntu1) built-in shell (ash)
Enter 'help' for a list of built-in commands.

(initramfs)

-------------------

After entering "help" it shows a huge list of single words that I'm not typing out here and I had no idea what to enter.

I have due to bad tiitus and problems paying attention when stuff like this goes on so I often get angry and quit. But I may have entered something random, which didn't work. I did a second reboot after hard shut down. Same result. Messed about somehow, sorry I was getting angry and don't recall what, but ended up seeing this

[ 0.218895] pnp 00:05: can't evaluate _CRS: 12298
Gave up waiting for root device. Common problems:
- Boot args (cat /proc/cmdline)
- Check rootdelay= (did the syatem wait long enough?)
-Check root= (did the system wait for the right device?)
- Missing modules (cat /proc/modules; ls /dev)
ALERT! /dev/disk/byuuid/a98004da-c473-4dce-a447-10ca8ec77 does not exist.
Dropping to a shell!

BusyBox v1.22.1 (Ubuntu 1:1.22.0-15ubuntu1) built-in shell (ash)
Enter 'help' for a list of built-in commands.

(initramfs)

--------------------------------------

After that I gave up and used the older version off the boot screen.

If someone thinks I may have made a mistake in typing out what I see in the images, please tell me and I'll check again, the images aren't perfectly focused..

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My system:

-Computer-
Processor : 2x AMD Athlon(tm) 64 X2 Dual Core Processor 4600+
Memory : 1930MB (582MB used)
Operating System : Ubuntu 15.10
User Name : cheapo (cheapo)
Date/Time : Sun 20 Mar 2016 11:31:07 GMT
-Display-
Resolution : 1280x1024 pixels
OpenGL Renderer : Unknown
X11 Vendor : The X.Org Foundation
-Multimedia-
Audio Adapter : HDA-Intel - HDA NVidia
-Input Devices-
Power Button
Power Button
AT Translated Set 2 keyboard
Microsoft Microsoft Trackball Explorer®
HDA NVidia Front Mic
HDA NVidia Rear Mic
HDA NVidia Line
HDA NVidia Line Out Front
HDA NVidia Line Out Surround
HDA NVidia Line Out CLFE
HDA NVidia Line Out Side
HDA NVidia Front Headphone
-Printers-
No printers found
-SCSI Disks-
ATA WDC WD3200AAJS-6
Generic USB SD Reader
Generic USB CF Reader
Generic USB SM Reader
Generic USB MS Reader
TSSTcorp CDDVDW TS-H653Q

Thanx in advance for your assistance people!
Images of tasty donuts await you!due to bad tiitus