3

Since today, I encounter this error message whenever I boot Ubuntu, and it won't let me boot Ubuntu. 

[    0:000000] [Firmware Bug]: TSC_DEADLINE disabled due to Errata;  
please update microcode to version: 0x52 (or later)
...  
BusyBox v1.22.1 (ubuntu 1:1.22.0-ubuntu2) built-in shell (ash)   
Enter 'help' for a list of built-in commands  
(initramfs) _

and I am now stuck at the BusyBox (initramfs).

I'm guessing I have to update the microcode, and I couldn't figure out how to do this as I can't even boot Ubuntu. The error message appears after it asks me to enter the pass-phrase for my encrypted hard drive.

Before this it also gives me the error message Error: environment block too small Press any key to continue.

I don't want to reinstall Ubuntu from scratch, as I still hope to get to the data I have on the encrypted drive. I have also attempted to access the encrypted drive booting from the live USB, but received errors when attempting to access/mount it. (mount: wrong fs type, bad option, bad superblock on /dev/mapper/ubuntu--vg-root)

A couple of days before this happened, I had installed the latest updates as suggested to me by the Ubuntu Software Center.

karel
  • 122,292
  • 133
  • 301
  • 332
Lilia
  • 41

1 Answers1

0

Microcode isn't updated at [0:000000]. This is what my system revealed:

$ cat /var/log/syslog | grep microcode
Feb  4 15:24:28 alien kernel: [16109.540807] microcode: microcode updated early to revision 0xba, date = 2017-04-09

and from:

$ cat /var/log/syslog.1 | grep microcode
Feb  3 08:08:07 alien kernel: [    1.152389] microcode: sig=0x506e3, pf=0x20, revision=0xba
Feb  3 08:08:07 alien kernel: [    1.152899] microcode: Microcode Update Driver: v2.2.
Feb  3 08:08:53 alien kernel: [    1.150298] microcode: sig=0x506e3, pf=0x20, revision=0xba
Feb  3 08:08:53 alien kernel: [    1.150765] microcode: Microcode Update Driver: v2.2.
Feb  4 08:30:54 alien kernel: [57834.131308] microcode: microcode updated early to revision 0xba, date = 2017-04-09
Feb  4 08:32:28 alien kernel: [    1.143969] microcode: sig=0x506e3, pf=0x20, revision=0xba
Feb  4 08:32:28 alien kernel: [    1.144257] microcode: Microcode Update Driver: v2.2.

...Intel Microcode is updated about 1 second into the boot when using an NVMe M.2 SSD.

Your question might be closed as a duplicate soon and I just wanted to post this information before it was closed.

If you search "TSC_DEADLINE microcode" you'll find a similar question here in Ask Ubuntu that also might be closed as a duplicate soon.

WinEunuuchs2Unix
  • 105,762