Re: i386-pc target and no block lists

[Andrei Borzenkov]

On Fri, Aug 14, 2015 at 3:29 PM, Olaf Hering <address@hidden> wrote:
> Last night I finally got around to update my grub1 chainloader to grub2.
> During install of the bootloader I ran into this issue:
>
> grub-install: warning: Embedding is not possible.  GRUB can only be installed 
> in this setup by using blocklists.  However, blocklists are UNRELIABLE and 
> their use is discouraged..
>
> I think everyone just gets around this message by always passing
> --do-it-anyway to grub2-install. At least the distro I'm using does
> this.
>
> But since the system I just reinstalled is still fresh I wonder what
> needs to be done to avoid the --do-it-anyway option?

If device onto which you install contains filesystem it has to provide
enough space to embed core.img outside of filesystem space. In
practice this means btrfs - the only besides zfs that reserves enough
space. Or install grub in MBR, 1MiB is enough.

>                                                                              
> Right now I can not
> imagine how the partition/filesystem layout has to look like.
>
> Olaf
>
>
> esprimo:~ #  parted -s /dev/disk/by-id/wwn-0x50014ee2590ff8f9 unit s print
> odel: ATA WDC WD6400BEVT-2 (scsi)
> Disk /dev/sda: 1250263728s
> Sector size (logical/physical): 512B/512B
> Partition Table: msdos
>
> Number  Start       End          Size         Type      File system     Flags
>  1      2048s       4196351s     4194304s     primary   ext3            boot, 
> type=83
>  2      4196352s    6293503s     2097152s     primary   ext2            
> type=83
>  3      6293504s    23070719s    16777216s    primary   linux-swap(v1)  
> type=82
>  4      23070720s   1250263727s  1227193008s  extended                  lba, 
> type=0f
>  5      23072768s   111153151s   88080384s    logical   ext4            
> type=83
>  6      111155200s  199235583s   88080384s    logical   fat32           
> type=83
>  7      199237632s  287318015s   88080384s    logical   ext4            
> type=83
>  8      287320064s  375400447s   88080384s    logical   ext3            
> type=83
>  9      375402496s  463482879s   88080384s    logical   ext4            
> type=83
> 10      463484928s  1250263727s  786778800s   logical   xfs             
> type=83
>

There was really no need to post the whole trace. And such question is
better asked on help-grub.