boot-info script error

[afhx]

I have been having boot-up problems. When running boot-info scripts repeatedly over a period I get the following message at the end of the script. I would be grateful if someone could enlighten me about its content and how to solve it..The message is:
unlzma(stdin): compressed data is corrupt

[oldfred]

I think I have seen that error, but is did not make any difference on at least some systems. I think I assumed it was unlzma issue.

Do you get a link to BootInfo report. If so post the link.

I thought boot repair auto added any packages it needs, but it runs bootinfoscript and there was some discussion in changes to boot script that some systems did not have all the needed packages.

What happens if you run this?
sudo apt-get install xz-utils

[afhx]

Thank you for replying. I don't have continuous broadband connection but will try it when I am pay a month's rent on my dongle.

[afhx]

sudo apt-get install xz-utils does not shift error I am afraid.