Hello,

On Wed, 13 Apr 2016 12:27:51 +0200
"Vegar Linge Haaland" <ve...@vegarlh.com> wrote:
>> -----Original Message-----
>> From: owner-t...@openbsd.org [mailto:owner-t...@openbsd.org] On
>> Behalf Of YASUOKA Masahiko
>> Sent: onsdag 13. april 2016 09.58
>> To: ve...@vegarlh.com
>> Cc: tech@openbsd.org
>> Subject: Re: EFIboot and HP Stream 13
>> 
>> On Wed, 13 Apr 2016 09:26:23 +0200
>> "Vegar Linge Haaland" <ve...@vegarlh.com> wrote:
>> > probing: pc0 mem[444K 88K 511M 1374M 19M]
>> > Disk:BlockSize=256 LastBlock=16383
>> > Hit any key to reboot
>> 
>> The result above means the disk is 4MB and its bllock size 256 bytes.
>> This seems strange for me.
> 
> Yes, it is strange. IIRC, this did not happen during legacy boot. I will try
> to confirm this too.
> 
> 
>> > Also, I forgot to mention this in my first post, sorry, not sure if it
>> > is relevant though:
>> > I am testing this using a USB-stick with everything on a encrypted
> softraid.
>> 
>> Did you try an USB stick without softraid?  If the issue doesn't happen
>> without softraid, can you show me the result of "machine diskinfo"
>> command on boot prompt?
>> 
>> --yasuoka
> 
> I will try this later today and revert.

Thanks, I'd like to make sure softraid isn't unrelated with this issue.

> In the meantime, this is the current machine diskinfo (using usb with
> softraid) output and dmesg below.
> --
> (Wiriting this off the screen)
> Disk  BlkSiz  IoAlign Size    Flags   Checksum
> hd0   512     0       14GB    0x4     0xef39964e      Removable
> hd1   512     1       29GB    0x0     0xc03b08e9
> hd2   512     1       4MB     0x0     0x783601b2
> hd3   512     1       4MB     0x0     0x787e01b3
> hd4   256     1       4MB     0x1     0x0

hd2, hd3 and hd4 doesn't seem to be a normal disk.  So as for the boot
loader, it can ignore them.  And actually it almost impossible to
support a disk whose block size < 512.

--yasuoka

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