2012/6/14 Andrey V. Elsukov <ae_at_freebsd.org>: > On 14.06.2012 17:08, Olivier Smedts wrote: >> 2012/6/14 Andrey V. Elsukov <ae_at_freebsd.org>: >>> Also, our PMBR image doesn't contain any partition entries and >>> writing it to the disk with dd(1) makes the system unbootable. >>> What you think if we will add one partition entry to the PMBR image? >>> I modified your patch (the last hunk added) and it is attached. >> >> Isn't it gpart(8)'s job to write the proper boot code from the pmbr >> image without damaging the partition table ? >> >> ie. "gpart bootcode -b /boot/pmbr ada0" instead of using dd. > > gpart(8) works only when GPT's geom exists, when PMBR is damaged > GEOM_PART_GPT can't detect GPT and thus you can't use it. IMO, GEOM_PART_GPT should not depend on the MBR do detect GPT. That's the problem which should be fixed ; adding a partition to the MBR is only a workaround (and what would happen if the sector 0 was permanently damaged on disk ?). Why does GEOM_PART_GPT depends on the sector LBA 0 while the GPT header is located at sector LBA 1 ? Don't know the feasability of this, just saying... :-) -- Olivier Smedts _ ASCII ribbon campaign ( ) e-mail: olivier_at_gid0.org - against HTML email & vCards X www: http://www.gid0.org - against proprietary attachments / \ "Il y a seulement 10 sortes de gens dans le monde : ceux qui comprennent le binaire, et ceux qui ne le comprennent pas."Received on Thu Jun 14 2012 - 14:05:43 UTC
This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:40:28 UTC