RE: Installing Windows Server 2019 from a remotely mounted ISO

[Troy Lee <troy_lee@aspeedtech.com>]

Hi Igor,

> -----Original Message-----
> From: i.kononenko <i.kononenko@yadro.com>
> Sent: Wednesday, August 4, 2021 10:11 AM
> To: Troy Lee <troy_lee@aspeedtech.com>; Konstantin Klubnichkin
> <kitsok@yandex-team.ru>
> Cc: openbmc@lists.ozlabs.org
> Subject: Re: Installing Windows Server 2019 from a remotely mounted ISO
> 
> Hello Troy,
> 
> On 04.08.2021 04:50, Troy Lee wrote:
> > Hi Igor,
> >
> > Currently, the remote virtual media emulate the gadget driver as usb
> thumb drive instead of cd-rom.
> > Please have a look on my patch:
> > https://gerrit.openbmc-project.xyz/c/openbmc/openbmc/+/42986
> Please note, the phosphor-misc:usb-ctrl have a way to specify mode
> usb|usb-ro|hdd|dvd which is useful to pick between both usb or cd-rom
> devices. Please, refer to the changes [1].
> 
This looks very useful, good information to know. 
Do frontend (web-vue/phosphor-webui) and backend (bmcweb) support it already?

> The implementation of usb-gadget:mass-storage has a many limitations
> about cd-rom:
>  * Image size should not be significant then 2.1Gb,
>  * Supports only CD-ROM profile
> That does following to failure of installing Windows-like OS, because without
> a number of DVD-ROM profile's features and correct SCSI-command
> handling(TOC/ATIP/PMA) a Windows OS can't load appropriate
> UDF-driver(iso-13346) and will stucks.
> 
> Summary the mentioned in the current subject patchset should solve the
> described issue.
> 
I'll give it a try, this might also solve our virtual media stress issues.

> >
> > Thanks,
> > Troy Lee
> 
> Links:
> * https://gerrit.openbmc-project.xyz/c/openbmc/phosphor-misc/+/36499
> 
> 
> --
> Best regards,
> 
> Igor Kononenko

Thanks,
Troy Lee