Re: Triple booting Windows/Debian/OpenBSD?

Op 01/11/2022 om 19:37 schreef Noth:
>
> On 01/11/2022 13:27, Ottavio Caruso wrote:
>> Hi,
>>
>> I have some spare space on my laptop (a rubbish Thinkpad E130) that
>> was originally meant for NetBSD, but I gave up on it due
>> suspend/resume not working.
>>
>> This is how it looks from Debian:
>>
>>
>> Device         Start       End   Sectors  Size Type
>> /dev/sda1       2048   1023999   1021952  499M Windows recovery
>> environment
>> /dev/sda2    1024000   1226751    202752   99M EFI System >>> [EFI
>> partition]
>> /dev/sda3    1226752   1259519     32768   16M Microsoft reserved
>> /dev/sda4    1259520  51845119  50585600 24.1G Microsoft basic data
>> /dev/sda5   51845120 124938239  73093120 34.9G NetBSD FFS
>> /dev/sda6  223012864 877277183 654264320  312G Microsoft basic data
>> /dev/sda7  206057472 223012863  16955392  8.1G Linux swap
>> /dev/sda8  877277184 976773119  99495936 47.4G Linux filesystem >>>
>> ]Debian /home partition]
>> /dev/sda9  124938240 206057471  81119232 38.7G Linux filesystem >>>
>> [Debian / root]
>>
>> Questions:
>>
>> 1) Can/should I reuse the EFI partition?
>>
>> 2) Can I reuse and mount the Linux swap partition?
>>
>> 3) I will nuke sda5 and install OpenBSD in there. Anything I need to
>> know or do before installation?
>>
>> I have read the installation guide:
>> https://www.openbsd.org/faq/faq4.html#Multibooting
>>
>> but it's quite short and terse.
>>
>> Is multibooting worth it or is it just a pain in the down under? I did
>> install OpenBSD before but in a VM, so... apples and oranges really.
>>
>> Thanks.
>>
>>
>
> Hi,
>
>   Presumably you are using GRUB to multiboot. Yes you should keep the
> EFI partition and add an OpenBSD directory in there, copy the
> BOOTX64.EFI file to it (available on your local mirror in the 7.2/amd64
> directory) and point your grub.cfg entry to the BOOTX64.EFI file in it.
> It's easiest to edit the /etc/grub.d/40_custom file and add this:
>
> menuentry 'OpenBSD/amd64 normal kernel' {
>  insmod part_gpt
>  insmod search_fs_uuid
>  insmod chain
>  chainloader (hd0,gpt2)/EFI/OpenBSD/BOOTX64.EFI
> }
>
> and run update-grub to modify grub.cfg.
>


Thanks. I'll try that.


--
Ottavio Caruso

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