Booting from vinum RAID 1: How should I edit my disk label?

[Micheas Herman]

On Sun, 2003-12-28 at 20:27, Micheas Herman wrote:
> Hi,
> 
> I am following "13.9.2 Making a Vinum-based Root Volume Accessible to
> the Bootstrap" from the FreeBSD Handbook.
> 
> Here is where I am at:
> 
> (/dev/vinum/root is mounted at /newroot )
> 
> # cat /newroot/boot/loader.conf
> # the following two lines so we can boot from vinum.
>  
> vinum_load="YES"
> vinum.autostart="YES"
> 
> 
> # vinum l -rv root
> Volume root:    Size: 146664960 bytes (139 MB)
>                 State: up
>                 Flags: open
>                 2 plexes
>                 Read policy: round robin
> Plex root.p0:   Size:   146664960 bytes (139 MB)
>                 Subdisks:        1
>                 State: up
>                 Organization: concat
>                 Part of volume root
>  
> Plex root.p1:   Size:   146664960 bytes (139 MB)
>                 Subdisks:        1
>                 State: up
>                 Organization: concat
>                 Part of volume root
>  
> Subdisk root.p0.s0:
>                 Size:        146664960 bytes (139 MB)
>                 State: up
>                 Plex root.p0 at offset 0 (0  B)
>                 Drive vinumdrive2 (/dev/ad6s1d) at offset 135680 (132 kB)
>  
> Subdisk root.p1.s0:
>                 Size:        146664960 bytes (139 MB)
>                 State: up
>                 Plex root.p1 at offset 0 (0  B)
>                 Drive vinumdrive3 (/dev/ad7s1d) at offset 135680 (132 kB)
>  
> 
> 
> # disklabel -e /dev/ad7s1
> 
> gives;
> 
> # /dev/ad7s1:
> 8 partitions:
> #        size   offset    fstype   [fsize bsize bps/cpg]
>   a:  9216000 14966784    4.2BSD     2048 16384 28552
>   b: 20942848 24182784    4.2BSD     2048 16384 28552
>   c: 45126522        0    unused        0     0         # "raw" part, don't edit  
>   d:   286720        0    4.2BSD        0     0     0
>   e:  4194304   286720    4.2BSD     2048 16384 28552
>   f:  4194304  4481024    4.2BSD     2048 16384 28552
>   g:  4194304  8675328    4.2BSD     2048 16384 28552
>   h:  2097152 12869632    4.2BSD     2048 16384 28552
> 
> 
> I am not sure what my disklabel -e /dev/ad7s1 should look like.

Replying to my own post.

Do I need to change partitions "a:" (currently part of volume tmp) and
"d:" (currently part of volume root)

Also with this configuration do I need to shrink the size of any of my
partitions. (I am unclear as to if I have 8k at the beginning of the
drive)
I can delete my current d: partition and make it smaller if that is
needed.

I just don't grok this yet :-(


thanks again for any help.


Micheas

-- 
Micheas Herman              email: micheas at freep.org
Free Print Shop             web:   http://www.FreePrintShop.org
phone: (415)648-3222        fax:   (415)648-3222