On 07/18/2016 12:05 PM, Oliver Paukstadt wrote:
I did a f24 installation using swraid on 4TB disks (predefined swraid
because I am still unhappy with complex tasks and the level disk
abstraction in anaconda, but thats not the point).
I assume you are using raid on the individual partitions and not the
whole disk?
I was not able to write bios boot twice (sda and sdb), it was only
written on sda (there is plenty of space on sdb as well).
Anaconda partitioner did not allow to define two biosboot partitions.
Yes, anaconda has to draw a line somewhere on how complicated it can
get. The installer needs to be very fully tested, so it needs to be
feasible for a human to do so.
Now I want to make the setup fully redundant (booting even without
sda) and so I need to setup biosboot on sdb as well.
With gparted I can create the 1 MB partition on sdb but it does not
support type bios boot.
Since you are creating a bios boot partition, you must be using the
non-GPT partition table. In that case, there is no actual type for a
"bios boot" partition. Look at what gparted identifies the partition on
sda as. However, was there anything else you wanted to keep already on
the drives? If not, then you could just reformat and repartition the
entire drive and you shouldn't need the bios boot partition at all.
With any current partitioning tools, there is a gap between the MBR and
the first partition with enough space to store the required data.
Workaround might be: create an unformatted partition in gparted and
copy biosboot to it (dd from sda-partition or is there a source file
anywhere in the filesystem?)
You could probably dd it from sda.
Are there any grub2 actions required afterwards?
You will need to grub2-install to /dev/sdb.
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