Re: [Starcluster] enlarge volume

From: Austin Godber <no email>
Date: Thu, 12 Aug 2010 20:08:05 -0400

e2fsck should be run on the partition and not the disk.

So

sudo e2fsck /dev/sdz1

should work. BTW, if you put a $ in your sample command lines, I think
you are running it as non-root user so I always think you need a sudo.
If you are running them as root, I would expect a #.

Also, I am very confused why the error message says anything about
/dev/sdo, if the disk you ran it on was sdz.

I am having some of the same problems you are, so there is something
strange going on and I don't know what yet. I must have never resized a
starcluster ebs volume. I guess it was something else. I know I have
resized root ebs volumes according to the alestic instructions but never
anything with a partition in it ... I guess. I am working on building
a new version of parted to see if that helps things any.

Austin




On 08/12/2010 08:01 PM, Dan Yamins wrote:
> Let me add one more thing to this thread:
>
> Even on ubuntu, even with my original volume, you can't do "e2fsck" of
> the "device" , e.g.
>
> $ e2fsck /dev/sdz
> Couldn't find ext2 superblock, trying backup blocks...
> e2fsck: Bad magic number in super-block while trying to open /dev/sdo
> ...
>
> Is that to be expected? In a number of tutorials on resizing EBS
> volumes, i have seen this done with the devices itself. Is the reason
> this is failing because its a partitioned drive?
>
>
>
> On Thu, Aug 12, 2010 at 6:43 PM, Dan Yamins <dyamins_at_gmail.com
> <mailto:dyamins_at_gmail.com>> wrote:
>
>
>>> Do you have a snapshot? I have used parted and
>>> e2resizefs to expand an ext3 filesystem without trouble.
>>>
>>>
>
>
> So I'm trying parted on a new, clean volume created from the
> snapshot, attached to /dev/sdm As I explained before, I can't do
>
> $ parted /dev/sdm
> [root_at_domU-12-31-39-0E-B2-61 ~]# parted /dev/sdm
> Error: Error initialising SCSI device /dev/sdm - Invalid argument
>
> AUstin, when you did this did you get that same error?
>
>
> I /CAN/ do parted on the path:
>
> $ parted /dev/sdm1
> GNU Parted 1.8.1
> Using /dev/sdm1
> Welcome to GNU Parted! Type 'help' to view a list of commands.
>
> But then i get this error:
>
> (parted) resize 1 0 500GB
> Error: The location 500GB is outside of the device /dev/sdo1.
>
> Which is course is true ...
>
> (parted) print
> Disk /dev/sdm1: 21.5GB
> Sector size (logical/physical): 512B/512B
> Partition Table: loop
>
> Number Start End Size File system Flags
> 1 0.00kB 21.5GB 21.5GB ext3
>
>
> So I'm not sure where to go from here...
>
> Dan
>
>
>
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Received on Thu Aug 12 2010 - 20:08:10 EDT