On Tue, Apr 21, 2009 at 2:52 PM, jackson byers <byersjab(a)gmail.com> wrote:
> sda1 size = 190M
>
> how possible?
> advice, help on further diagnosing this?
> Jack
After using fdisk or parted, one must do "partprobe" at the CLI to record
the changes. Both the OS and the Kernel need to know the changes.
Since your boot partition is involved, you may need a LiveCD for this.
Do "man partprobe" for more info.
HTH,
~af
-----------------------
but "I" didnt "consciously" use fdisk or parted on sda.
If it happened bc of my clutzy use of the liveinstall cd
then maybe I did, without knowing it.
I don't think it was something you did. The install was just not
smart enough to be one with the "force" :-)
Actually my present boot partition is sdb6, /boot a dir inside,
so present /boot not involved with my installcd mistakes on sda1.
I have systemrescue cd so i probably can use that.
I have never heard of partprobe
is it really necessary if reboot after using fdisk,parted,gparted
if reboot after?
Before partprobe came into the picture you'd have to reboot the
system to validate filesystem modifications; partprobe takes care of
this on the fly.
I am unclear re man page
partprobe - inform the OS of partition table changes
partprobe [-d] [-s] [devices...]
partprobe is a program that informs the operating system kernel of
parti-
tion table changes, by requesting that the operating system re-read
the
partition table.
OPTIONS
-d Don’t update the kernel.
-s Show a summary of devices and their partitions.
what exactly does -d do?
Just that. The changes are not noted by the kernel.
-s do nothing except show summary ?
are you saying to run it
as partprobe /dev/sda1
or partprobe /dev/sda ?
At the CLI just type the command by itself and press enter. It will detect
changes to any attached HDD.
$ sudo parprobe
will this operation shrink the size seen by fdisk to what is seen by
df?
or what?
will it affect
sda2 swap
sda3 another linux partition
?
Parprobe does not do resizing nor does it affect partitions; it simply rereads
the partition table without rebooting and reports the changes to the kernel.
parted shows same thing, but additional "incompatible
feature"
root@bootp ~]# parted /dev/sda
Using /dev/sda
(parted) unit mb print
Disk geometry for /dev/sda: 0MB - 36704MB
Disk label type: msdos
Number Start End Size Type File system Flags
1 0MB 22011MB 22011MB primary ext3 boot
2 22011MB 26017MB 4006MB primary linux-swap
3 26017MB 36701MB 10685MB primary ext3
(parted) check 1
Warning: Partition 1 is 22011MB, but the file system is 206MB.
Ignore/Cancel? ignore
Error: File system has an incompatible feature enabled.
does this last tell us anything useful?
perhaps better to just reformat sda1?
That's informative. I would do one of two things: (a) reformat the partition
and create a new filesystem, or (b) use GParted to grow the filesystem to
the full extent of the partition.
Note that a partition can be 200GB, but there could be a small filesystem that
does not occupy the entire partition... such is your case.
Look at this as a great learning experience to understand partitions.
Don't be afraid to experiment. Only save your data in an external source
for safety.
thanks for response
Jack
Glad to help. Only help someone else when your time comes.
~af