Same error.<br><br>resize2fs 1.39 (29-May-2006)<br>resize2fs: Bad magic number in super-block while trying to open /dev/sdm1<br>Couldn't find valid filesystem superblock.<br><br>Something is corrupted on the drive when re-writing the partition table<br>
<br><br><br><div class="gmail_quote">On Thu, Aug 12, 2010 at 12:18 PM, Justin Riley <span dir="ltr"><<a href="mailto:jtriley@mit.edu">jtriley@mit.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<div class="im"><br>
On 08/12/2010 11:43 AM, Dan Yamins wrote:<br>
> Does this completely confirm that the larger 500 GB volume is completely<br>
> "seen"? (And if so, does this mean that nothing like resize2fs or<br>
> xfs_growfs is necessary?)<br>
<br>
</div>Dan,<br>
<br>
- From the fdisk -l output you sent you can see that you have a larger<br>
volume now (536.8GB) however your partition is still only 20GB big:<br>
<br>
20964824(blocks)/1024.0(blocks/MB) ~= 20GB<br>
<br>
You need to recreate the partition to be 536.8GB and then run resize2fs:<br>
<br>
If you're doing this on a StarCluster you'll first need to run the<br>
following command (as root) on each node of the cluster for the<br>
mount_path defined in your volume's StarCluster config:<br>
<br>
$ umount MOUNT_PATH<br>
<br>
Then shutdown the nfs service (as root) on the master node:<br>
<br>
$ /etc/init.d/nfs stop<br>
<br>
After that do the following (as root) to resize your new volume:<br>
<br>
$ umount /dev/sdz<br>
$ fdisk /dev/sdz<br>
<br>
# Type 'd' to delete the primary partition<br>
# Type 'n' for new partition<br>
# Type 'p' for primary<br>
# Type '1' for 1st<br>
# Type Enter for 1st cylinder<br>
# Type Enter for last cylinder (full disk)<br>
# Type 'w' to finish<br>
<br>
$ e2fsck -f /dev/sdz1<br>
$ resize2fs -p /dev/sdz1<br>
$ fsck -f -y /dev/sdz1<br>
<br>
Then you should be able to mount the new volume:<br>
<br>
$ mount /dev/sdz1 MOUNT_PATH<br>
<br>
And start nfs again on the master:<br>
<br>
$ /etc/init.d/nfs start<br>
<br>
And re-mount the NFS drives for that volume on each of the nodes:<br>
<br>
$ mount MOUNT_PATH<br>
<br>
HTH,<br>
<br>
~Justin<br>
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</blockquote></div><br>