LinuxQuestions.org - GRUB: failed to add custom entry

- Fedora - Installation (https://www.linuxquestions.org/questions/fedora-installation-39/)

- - GRUB: failed to add custom entry (https://www.linuxquestions.org/questions/fedora-installation-39/grub-failed-to-add-custom-entry-4175495012/)

I just realize that only

Code:

grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

works, and not

Code:

grub2-mkconfig -o /boot/grub2/grub.cfg

as I was doing...

That is why nothing appeared in the initial boot list.

Still, I can't load Windows because of the errors I got

Also, I noted the fedora instalation removed what was there in the EFI partition, and the current one has nothing about windows.

:redface: See my edit to post 13, above.

Well, at least now the entries are appearing, and it narrowed down to these two (each with it's own error)

Code:

# cat /etc/grub.d/40_custom 

#!/bin/sh

exec tail -n +3 $0

# This file provides an easy way to add custom menu entries.  Simply type the

# menu entries you want to add after this comment.  Be careful not to change

# the 'exec tail' line above.

menuentry "Windows-chain" {

insmod part_gpt

insmod fat

insmod search_fs_uuid

insmod chain

search --no-floppy --fs-uuid --set=root 1024008A240074CE 

chainloader (${root})/efi/Microsoft/Boot/bootmgfw.efi

}

which gives the error

Code:

error: no such device: 1024008A240074CE 

error: file: '/efi/Microsoft/Boot/bootmgfw.efi' not found

Press any key to continue...

and also

Code:

# cat /etc/grub.d/bkup40 

#!/bin/sh

exec tail -n +3 $0

# This file provides an easy way to add custom menu entries.  Simply type the

# menu entries you want to add after this comment.  Be careful not to change

# the 'exec tail' line above.

menuentry "Windows-ntldr" --class windows --class os {

insmod part_msdos

insmod ntfs

insmod ntldr

set root='(hd0,msdos4)'

search --no-floppy --fs-uuid --set=root 1024008A240074CE

ntldr ($root)/bootmgr

}

which gives the error

Code:

error: file '/EFI/fedora/x86_64-efi/ntfs.mod' not found

error: file '/EFI/fedora/x86_64-efi/ntldr.mod' not found

error: no such device: 1024008A240074CE 

error: can't find the command 'ntldr'.

Press any key to continue...

I think we are getting closer to the solution now :)

what is on /dev/sda7 and /dev/sda6

sda6 has the label "SAMSUNG_REC" which I believe is related to my laptop recovery options.

In any case, it does seems to be bootable.. the files in it are:

Code:

ls -l 

total 1872

drwxr-xr-x.  2 root root    4096 Aug  3  2012 bg-bg

drwxr-xr-x. 38 root root    4096 Aug  3  2012 Boot

-rwxr-xr-x.  1 root root  398156 Jul 25  2012 bootmgr

-rwxr-xr-x.  1 root root 1350896 Jul 25  2012 bootmgr.efi

drwxr-xr-x.  2 root root    4096 Aug  3  2012 cs-cz

drwxr-xr-x.  2 root root    4096 Aug  3  2012 da-dk

drwxr-xr-x.  2 root root    4096 Aug  3  2012 de-de

drwxr-xr-x.  8 root root    4096 Aug 24  2012 Drivers

drwxr-xr-x.  4 root root    4096 Aug  3  2012 EFI

drwxr-xr-x.  2 root root    4096 Aug  3  2012 el-gr

drwxr-xr-x.  2 root root    4096 Aug  3  2012 en-gb

drwxr-xr-x.  2 root root    4096 Aug  3  2012 en-us

drwxr-xr-x.  2 root root    4096 Aug  3  2012 es-es

drwxr-xr-x.  2 root root    4096 Aug  3  2012 et-ee

drwxr-xr-x.  2 root root    4096 Aug  3  2012 fi-fi

drwxr-xr-x.  2 root root    4096 Aug  3  2012 fr-fr

drwxr-xr-x.  2 root root    4096 Aug  3  2012 hr-hr

drwxr-xr-x.  2 root root    4096 Aug  3  2012 hu-hu

drwxr-xr-x.  2 root root    4096 Aug  3  2012 it-it

drwxr-xr-x.  2 root root    4096 Aug  3  2012 ja-jp

drwxr-xr-x.  2 root root    4096 Aug  3  2012 ko-kr

drwxr-xr-x.  2 root root    4096 Aug  3  2012 lt-lt

drwxr-xr-x.  2 root root    4096 Aug  3  2012 lv-lv

drwxr-xr-x.  2 root root    4096 Aug  3  2012 nb-no

drwxr-xr-x.  2 root root    4096 Aug  3  2012 nl-nl

drwxr-xr-x.  2 root root    4096 Aug  3  2012 pl-pl

drwxr-xr-x.  2 root root    4096 Aug  3  2012 pt-br

drwxr-xr-x.  2 root root    4096 Aug  3  2012 pt-pt

drwxr-xr-x.  2 root root    4096 Aug 24  2012 $RECYCLE.BIN

drwxr-xr-x.  2 root root    4096 Aug  3  2012 ro-ro

drwxr-xr-x.  2 root root    4096 Aug  3  2012 ru-ru

drwxr-xr-x.  2 root root    4096 Aug  3  2012 sk-sk

drwxr-xr-x.  2 root root    4096 Aug  3  2012 sl-si

drwxr-xr-x.  2 root root    4096 Aug  3  2012 sources

drwxr-xr-x.  2 root root    4096 Aug  3  2012 sr-latn-cs

drwxr-xr-x.  2 root root    4096 Aug  3  2012 sv-se

drwxr-xr-x.  2 root root    4096 Aug  3  2012 tr-tr

drwxr-xr-x.  2 root root    4096 Aug  3  2012 uk-ua

drwxr-xr-x.  8 root root    4096 Aug  3  2012 WinClon

drwxr-xr-x.  2 root root    4096 Aug  3  2012 zh-cn

drwxr-xr-x.  2 root root    4096 Aug  3  2012 zh-hk

drwxr-xr-x.  2 root root    4096 Aug  3  2012 zh-tw

whe I tried to mound sda7 ir said:

Code:

mount: /dev/sda7 is write-protected, mounting read-only

mount: wrong fs type, bad option, bad superblock on /dev/sda7,

      missing codepage or helper program, or other error



      In some cases useful info is found in syslog - try

      dmesg | tail or so.

I learned a lot in this thread and now my ideas are more organized, so I will post another cleaner topic with the actual problem, so people don't have to read again all the mistakes I've done.
I checked and it doesn't seem to be against any rule of the forum, so, hope it is okay.