bmullan2
November 27th, 2017, 05:34 PM
I have a server with four 2 TB drives on it.
I have installed Ubuntu on Drive A and Drive B.
The BIOS is set to Boot from Drive A and it does that ok.
If I connect a monitor & keyboard to the Server I can use the BIOS to boot from Drive B okay also.
I rebooted to ubuntu on Drive A okay and then ran update-grub but the Grub2 os-prober only seems to search & find ubuntu on Drive A ... it doesn't seem to look at Drive B.
Is this due to both Drive A and B having Ubuntu installed on btrfs and the Grub2 os-prober unable to search Drive B for other Ubuntu installs?
Is the editing & modification of /etc/grub.d/40_custom the only way to accomplish this when you have multiple BTRFS disks each with their own OS installed ?
I had understood Grub2 supported multiple disks each with their own OS installed and would on boot present a menu allowing selection of which OS (and thus which disk) to boot from ?
Thanks for any ideas.
I have installed Ubuntu on Drive A and Drive B.
The BIOS is set to Boot from Drive A and it does that ok.
If I connect a monitor & keyboard to the Server I can use the BIOS to boot from Drive B okay also.
I rebooted to ubuntu on Drive A okay and then ran update-grub but the Grub2 os-prober only seems to search & find ubuntu on Drive A ... it doesn't seem to look at Drive B.
Is this due to both Drive A and B having Ubuntu installed on btrfs and the Grub2 os-prober unable to search Drive B for other Ubuntu installs?
Is the editing & modification of /etc/grub.d/40_custom the only way to accomplish this when you have multiple BTRFS disks each with their own OS installed ?
I had understood Grub2 supported multiple disks each with their own OS installed and would on boot present a menu allowing selection of which OS (and thus which disk) to boot from ?
Thanks for any ideas.