[SOLVED] Grub2 goes into rescue prompt

[aiiaiiio]

Hello,

I have mageia6 sta1 installed. I don't know exactly what triggered my problem (an update maybe?).
Everything was fine for weeks, then one time I halted my computer and the next morning the grub menu didn't appear, instead I was dropped into a grub prompt.

What could have happened? I have Windows 10 installed as well in dual boot, so I could boot into that like this:

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chainloader (hd0,msdos1)+1
boot


I don't know how to boot linux manually, and I also don't know how could I solve this problem. Please help.
What additional info would you need to analyze the situation?

Best regards,
-- Tamás

[gohlip]

I assume you use bios-legacy and msdos partitioning.

Taking Mageia partition as sda5 (change below to correct partition)
Boot up a live cd, at terminal

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# mount /dev/sda5 /mnt
# grub2-install --boot-directory=/mnt/boot /dev/sda

Reboot.

[aiiaiiio]

Hello gohlip,

I assume you use bios-legacy and msdos partitioning.

correct

I already found this procedure on other forums, but didn't help me. I tried it again anyway, and this time it worked! I don't know how, you probably put a bit of mageia into your post, so thank you very much!

This is what I did exactly:
The Mageia6 sta1 livedvd wasn't able to boot for some reason so I used Mageia5 for this.
My linux partition is sda3

grub2-install is not installed on the live system by default, I had to install it first:

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[live@localhost live]# su
[root@localhost live]# urpmi grub2


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[root@localhost live]# mount /dev/sda3 /mnt
[root@localhost live]# grub2-install --boot-directory=/mnt/boot /dev/sda
Installing for i386-pc platform.
Installation finished. No error reported.
[root@localhost live]# reboot


Thanks again!
--

[gohlip]

Good to hear. Welcome. Cheers.