2 questions: GEOM_LABEL and partition naming
Valentin Bud
valentin.bud at gmail.com
Tue Jul 7 12:54:27 UTC 2009
On Tue, Jul 7, 2009 at 3:41 PM, Daniel Underwood <djuatdelta at gmail.com>wrote:
> Good morning, folks! (At least, it's morning on the east coast of USA)
>
>
> QUESTION 1: Would someone please explain the /var/run/dmesg.boot excerpt
> below?
>
> Note: I have glanced at both of the following links, but at the
> moment, I do not have time to dig into the documentation and learn all
> about this. I'm hoping to get enough knowledge to understand what's
> going on with this excerpt, and then later invest time in deeper
> learning.
> <http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/geom.html>
> <http://www.freebsd.org/cgi/man.cgi?query=geom&sektion=4>
>
> [BEGIN excerpt from dmesg.boot]
> GEOM_LABEL: Label for provider ad0s1a is ufsid/4a0047d615cb402f.
> GEOM_LABEL: Label for provider ad0s1d is ufsid/4a0047d94598831f.
> GEOM_LABEL: Label for provider ad0s1e is ufsid/4a0047d8017e2a4d.
> GEOM_LABEL: Label for provider ad0s1f is ufsid/4a0047d82cde044f.
> GEOM_LABEL: Label for provider ad0s1g is ufsid/4a0047d6b40e9fa1.
> Trying to mount root from ufs:/dev/ad0s1a
> GEOM_LABEL: Label ufsid/4a0047d615cb402f removed.
> GEOM_LABEL: Label for provider ad0s1a is ufsid/4a0047d615cb402f.
> GEOM_LABEL: Label ufsid/4a0047d6b40e9fa1 removed.
> GEOM_LABEL: Label for provider ad0s1g is ufsid/4a0047d6b40e9fa1.
> GEOM_LABEL: Label ufsid/4a0047d8017e2a4d removed.
> GEOM_LABEL: Label for provider ad0s1e is ufsid/4a0047d8017e2a4d.
> GEOM_LABEL: Label ufsid/4a0047d82cde044f removed.
> GEOM_LABEL: Label for provider ad0s1f is ufsid/4a0047d82cde044f.
> GEOM_LABEL: Label ufsid/4a0047d94598831f removed.
> GEOM_LABEL: Label for provider ad0s1d is ufsid/4a0047d94598831f.
> GEOM_LABEL: Label ufsid/4a0047d615cb402f removed.
> GEOM_LABEL: Label ufsid/4a0047d6b40e9fa1 removed.
> GEOM_LABEL: Label ufsid/4a0047d8017e2a4d removed.
> GEOM_LABEL: Label ufsid/4a0047d82cde044f removed.
> GEOM_LABEL: Label ufsid/4a0047d94598831f removed.
> [END excerpt from dmesg.boot]
This are labels:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/geom-glabel.html.
>
>
> More possibly relevant information:
>
> [BEGIN /etc/fstab]
> # Device Mountpoint FStype Options Dump
> Pass#
> /dev/ad0s1b none swap sw 0 0
> /dev/ad0s1a / ufs rw 1 1
> /dev/ad0s1g /home ufs rw 2 2
> /dev/ad0s1e /tmp ufs rw 2 2
> /dev/ad0s1f /usr ufs rw 2 2
> /dev/ad0s1d /var ufs rw 2 2
> /dev/acd0 /cdrom cd9660 ro,noauto 0 0
>
> linproc /usr/compat/linux/proc linprocfs rw 0 0
> [END /etc/fstab]
>
> [BEGIN output of df command]
> Filesystem 1K-blocks Used Avail Capacity Mounted on
> /dev/ad0s1a 756750 162710 533500 23% /
> devfs 1 1 0 100% /dev
> /dev/ad0s1g 23364076 112878 21382072 1% /home
> /dev/ad0s1e 756750 862 695348 0% /tmp
> /dev/ad0s1f 10154158 5275158 4066668 56% /usr
> /dev/ad0s1d 756750 163790 532420 24% /var
> linprocfs 4 4 0 100% /usr/compat/linux/proc
> [END output of df command]
>
>
> QUESTION 2: I'm suprised that the device names (from the df output
> above) do not include "ad0s1b" and "ad0s1c". I thought the naming
> should follow the model of "ad0s1%" where "%" begins at "a" and
> continues in alphabetical order for each partition on that device.
> What am I missing?
Partition b is for swap and c represents the entire slice. They will not
appear in df output.
>
>
>
> TIA,
> Daniel
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