[Starcluster] enlarge volume

[Austin Godber]

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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