Invalid Dell service tag?

[Agent_24]

Yeah, in my case its apparently due to a faulty intel microcode update and adding dis_ucode_ldr to grub.conf was supposed to get around this issue, but didnt seem to do anything, but i may have got the syntax incorrect, as it was a bit unclear how i was supposed to add it, but the way i understood it to be was to add straight after the line that reads "GRUB_CMDLINE_LINUX_DEFAULT"

I don't know what distro you use but for me I'd edit the /etc/default/grub file

The current line for mine (in Xubuntu) is 

Code:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

To add your one I would change it to

Code:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash dis_ucode_ldr"

Then, you have to run the "update-grub" command to actually process that change.