bugGNU GRUB - Bugs: bug #55718, Command-line interface gotchas

 
 

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bug #55718: Command-line interface gotchas

Submitted by:  jidanni
Submitted on:  Fri 15 Feb 2019 11:59:00 PM UTC  
 
Category:  Documentation Severity:  Major
Priority:  5 - Normal Item Group:  Documentation
Status:  None Privacy:  Public
Assigned to:  None Originator Name: 
Open/Closed:  Open Release: 
Release:  2.02 Reproducibility:  None
Planned Release:  None

Tue 19 Feb 2019 03:06:27 AM UTC, comment #2: 

There are video test commands.
Add audio test commands.
And hopefully ones that will play a sound.
(Yes, we know about GRUB_INIT_TUNE)

jidanni
Tue 19 Feb 2019 02:53:49 AM UTC, comment #1: 

On (info "(grub) echo")

...
     '\t'
          horizontal tab

     '\v'
          vertical tab

     When interpreting backslash escapes, backslash followed by any
     other character will print that character.

Say if you mean "any other character than the above" or not.

P.S., add:
Just as in shell,

> echo \\\\

\\

> echo -e \\\\

\

jidanni
Fri 15 Feb 2019 11:59:00 PM UTC, original submission:  

On (info "(grub) Command-line interface")

      Note that you cannot use the completion functionality in the TFTP
   filesystem.  This is because TFTP doesn't support file name listing for
   the security.
   ^^^ remove "the".

On (info "(grub) echo") give an -e example,
so we know if we should use
echo -e \a  #or
echo -e \\a #or
echo -e '\a'

On (info "(grub) Command-line and menu entry commands")
"exit" is not listed, but indeed "works" from the
grub>
prompt. Be sure to make a page about it...

Indeed, "c" gets a command line. And on top a message saying to use ESC
to get back out. But then subsequent "c" only get the command line, not
the message. Therefore the user might likely try "exit" at the command
line, getting stuck!

By the way the vbe* commands don't have an INFO page.
And *test commands should mention while showing their test results, how
to exit them and get back to the menu.

(info "(grub) videoinfo") should mention what to do if output is too
long for the screen.

2.02+dfsg1-11

jidanni

 

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