zpool upgrade change bootcode (RESOLVED)

[maremar]

Hi,

We've done a zpool upgrade but we have a question:

Should we do a gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 ada0 or a gpart bootcode -p /boot/boot1.efifat -i 1 ada0 on both disks to do a correct boot upgrade?

Many thanks

 

[chrbr]

Regarding the first command it should be -i 2 because this is where freebsd-boot resides. Without EFI it is most likely -i 1. The examples you can find with a search engine often come from the pre-EFI times. About the second command -i 1 should be ok. But I am not sure if this is necessary.

Please check the meaning of the parameter i in gpart(8) and wait for an advise regarding the second command before updating the boot code and the EFI stuff. I am just a hobbyist .

EDIT: removed the = between i and the number and added a - because this is how it ends up in the command.

 

[Emrion]

Yes, it's -i 2 for the the gpart bootcode command in your case. See here for the whole thing.

 

[maremar]

If I've understood, to upgrade correctly bootcode in my zfs mirror:

first:
#gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 2 ada0
#gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 2 ada1

Second:
#gpart bootcode -p /boot/boot1.efifat -i 1 ada0
#gpart bootcode -p /boot/boot1.efifat -i 1 ada1

am I right?

PS: Second pass is mandatory? <-- It's deprecated, don't do it

Thanks again to all

 

[Cath O'Deray]

am I right?

Is it UEFI boot?

 

[maremar]

I think it is , isn't it?

 

[zirias@]

gpart bootcode -p /boot/boot1.efifat -i 1 ada0

Don't do that, boot1.efifat is deprecated (IIRC removed on FreeBSD 13).

Mount your EFI partition and copy /boot/loader.efi over EFI/BOOT/BOOTx64.efi instead.

PS: Second pass is mandatory?

Your partitions support both UEFI and CSM boot. Best update both bootloaders. You can learn which method you are currently using with sysctl machdep.bootmethod, but anyways it doesn't hurt to have both bootloaders up to date.

 

[Emrion]

Second:
#gpart bootcode -p /boot/boot1.efifat -i 1 ada0
#gpart bootcode -p /boot/boot1.efifat -i 1 ada1

No. Read my howto. This is the old method.

Update both UEFI and Bios bootcodes.

 

[maremar]

I didn't know how to find it out, thanks again

root@crucoli:~ # sysctl machdep.bootmethod
machdep.bootmethod: UEFI

Thanks to all, specialy to Emrion (and his manual) and Zirias. I've doing some tests with a spare machine and I think I have understand something I didn't have very clear:

GPT table, BIOS boot only

GPT Table, UEFI boot only

GPT Table, UEFI and BIOS boot

Thanks again and happy sunday to everybody