[OpenIndiana-discuss] help needed: reinstall bootloader

[Nikola M]

On 04/13/18 11:27 PM, Till Wegmüller wrote:
> Hi Stephan
>
> Is this a Linux dualboot machine?
>
> Linux has the tendency to overwrite the device section of a zpool when
> importing. /dev/sdc looks like a linux name.
>
> If so you may have killed that zpool by importing it from linux.
> AFAIK there is currently no good solution to fix the device name entry.

Except from, booting from Live media (DVD,USB) , importing pool and 
exporting pool and reboot?


> Also be sure to stick to either slices or partitions p1 != s1 in your
> commands.
> One is the traditional Solaris Slice layout of the disk the other the
> Partitions in DOS style. They do not mix at all.

It means there is a difference if partitions are created under 
illumos/Solaris and Linux.
up to 4 'Slices' can fit insite standard(MBR) partition and when 
creating ZFS partition from OI, it creates one slice inside partition 
for ZFS.
And that is not the same as having ZFS on top of partition.
So it is better to create partition aether during illumos install (and 
not before install) because of that difference.

I had a problem with reinstalling illumos loader while retaining MBR 
partition, With ZFS on it without slice on partition.
Would need to re-check if that works now, but it is always better to 
create ZFS partition with illumos fdisk or OI Install process.

And also there is the question weather Hard disk cache is turned on if 
ZFS uses partition and not the whole drive. Previoiusly, Hard disk 
caching used to be turned OFF if ZFS is on partition and not on the 
whole drive, for UFS compatibility.
Don't know how it is now nor how to explicitlycheck/turn ON Hard disk 
caching if ZFS pool uses partition on drive.