Hi Dear Friends
I am quite newbe at Linux. I would like to back up two dual boot computer Grubs. I was explained that Grub should be backed up separated from the rest of the HD data.
Can you please give some guide?
Thanks in advance
Back up GRUB
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chezydan
Back up GRUB
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
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StanTheMan
Re: Back up GRUB
A grub install consists of --
a writing of the MBR on the Master drive (the drive which BIOS is set to boot)(not a partition)
and a set of files in the Root partition of the Linux that is doing the bootloading.
At start-up BIOS reads the MBR which tells it to next look for a boot list file in the target Root partition.
The boot list is then displayed to the User , who can then target yet another Root partition (including Microsoft if installed.)
If you have your bootloader Linux OS running, you can use this command - -
Terminal
sudo update-grub
(enter your User password)
This will update the boot list.
But there are several grub files in the Root OS
" /boot/grub/grub.cfg
/etc/default/grub
/etc/grub.d/------several text files.
If yioou evere lose your MBR , it can be re-written with a Live disk.
a writing of the MBR on the Master drive (the drive which BIOS is set to boot)(not a partition)
and a set of files in the Root partition of the Linux that is doing the bootloading.
At start-up BIOS reads the MBR which tells it to next look for a boot list file in the target Root partition.
The boot list is then displayed to the User , who can then target yet another Root partition (including Microsoft if installed.)
If you have your bootloader Linux OS running, you can use this command - -
Terminal
sudo update-grub
(enter your User password)
This will update the boot list.
But there are several grub files in the Root OS
" /boot/grub/grub.cfg
/etc/default/grub
/etc/grub.d/------several text files.
If yioou evere lose your MBR , it can be re-written with a Live disk.