bugGNU GRUB - Bugs: bug #44892, grub-mkconfig -o /dev/null delete...

 
 

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bug #44892: grub-mkconfig -o /dev/null delete /dev/null device !

Submitter:  Jean-François Maeyhieux <zentoo>
Submitted:  Tue 21 Apr 2015 08:58:40 AM UTC
   
 
Category:  Filesystem Severity:  Major
Priority:  5 - Normal Item Group:  Software Error
Status:  None Privacy:  Public
Assigned to:  None Originator Name: 
Open/Closed:  Open Release:  2.02~beta1
Release:  Reproducibility:  Every Time
Planned Release:  2.03+

Tue 21 Apr 2015 04:54:47 PM UTC, comment #2: 

@arvidjaar: You're right, I've checked it and grub-mkconfig output is on stderr.



Jean-François Maeyhieux <zentoo>
Tue 21 Apr 2015 04:47:30 PM UTC, comment #1: 

grub-mkconfig and scripts that are included in grub sources output own messages to stderr. If it does not happen, it is a bug; please provide log of grub-mkconfig then.

Andrei Borzenkov <arvidjaar>
Group Member
Tue 21 Apr 2015 08:58:40 AM UTC, original submission:  

To simulate a grub configuration file creation, I do:
grub-mkconfig -o /dev/null because grub-mkconfig write information messages AND configuration on standard output so it's only possible to catch informations without created configuration by creating a real file. By using /dev/null as configuration output, grub-mkconfig delete the device !

Note: if -o argurment is a directory, grub-mkconfig write the file in the directory and don't print an error too.

=> grub-mkconfig need to check if the output path is a real file in order to do not supress special files as character/block devices.

=> grub-mkconfig need to use stderr as output for informationnal messages

Jean-François Maeyhieux <zentoo>

 

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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2017-03-05 phcoder Planned Release2.02 2.03+
    2016-03-02 phcoder Planned ReleaseNone 2.02

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