<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40" xmlns:ns0="http://schemas.microsoft.com/office/2004/12/omml"> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="Street"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="address"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PostalCode"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="State"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="City"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"/>  <style>  </style>  </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> Is the output of “cat /proc/partitions” correct? Did you run “partprobe” to reread the partition table?<o:p></o:p> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: redhat-sysadmin-list-bounces@redhat.com [mailto:redhat-sysadmin-list-bounces@redhat.com] On Behalf Of Lopez, Denise Sent: Tuesday, February 26, 2008 2:49 PM To: redhat-sysadmin-list@redhat.com Subject: RE: LVM resize question<o:p></o:p> </div> <o:p> </o:p> From within the guest when I do an fdisk –l it shows the drive as being 12GB which is the 10GB original size plus the 2GB I extended the LVM but with a df –h command it is still only showing the original 10GB.<o:p></o:p> <o:p> </o:p> When I try to run a resize2fs in the guest, it says:<o:p></o:p> <o:p> </o:p> [root@centos5-test ~]# resize2fs /dev/xvda2<o:p></o:p> resize2fs 1.39 (29-May-2006)<o:p></o:p> The filesystem is already 2594497 blocks long. Nothing to do!<o:p></o:p> <o:p> </o:p> The /dev/xvda2 is the root partition but I thought resize2fs could extend a file system without having to unmount it.<o:p></o:p> <o:p> </o:p> <div> Denise Lopez<o:p></o:p> 310/ 206-8216<o:p></o:p> dlopez@humnet.ucla.edu<o:p></o:p> </div> <o:p> </o:p> <div> <div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'> From: redhat-sysadmin-list-bounces@redhat.com [mailto:redhat-sysadmin-list-bounces@redhat.com] On Behalf Of Olt, Joseph Sent: Tuesday, February 26, 2008 11:06 AM To: redhat-sysadmin-list@redhat.com Subject: RE: LVM resize question<o:p></o:p> </div> </div> <o:p> </o:p> Hello Denise,<o:p></o:p> <o:p> </o:p> I don’t have a Xen server to check, but I don’t believe there is an ext2 or ext3 filesystem on a Xen partition. Resize2fs only works for ext2/3 filesystems. Did you try increasing the volume and re-read the disk from the Xen guest?<o:p></o:p> <o:p> </o:p> Regards,<o:p></o:p> <o:p> </o:p> Joseph<o:p></o:p> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center> </div> From: redhat-sysadmin-list-bounces@redhat.com [mailto:redhat-sysadmin-list-bounces@redhat.com] On Behalf Of Lopez, Denise Sent: Tuesday, February 26, 2008 1:55 PM To: redhat-sysadmin-list@redhat.com Subject: LVM resize question<o:p></o:p> </div> <o:p> </o:p> Hi all,<o:p></o:p> <o:p> </o:p> I am in the process of setting up a Xen server and I want to have the Guest OS’s on LVM’s. I have created a 10GB LVM and installed a CentOS guest on it. Now before it goes production I want to do testing of increasing the space for the Guest OS. I have found documentation that says to use resize2fs after you extend the logical volume but when I try this command on the logical volume I get the following error.<o:p></o:p> <o:p> </o:p> root@xen ~]# resize2fs /dev/XenServers/CentOS5<o:p></o:p> resize2fs 1.39 (29-May-2006)<o:p></o:p> resize2fs: Bad magic number in super-block while trying to open /dev/XenServers/CentOS5<o:p></o:p> Couldn't find valid filesystem superblock.<o:p></o:p> <o:p> </o:p> I tried with the –f option too but still the same error. <o:p></o:p> <o:p> </o:p> Any ideas?<o:p></o:p> Thanks<o:p></o:p> <o:p> </o:p> Denise Lopez<o:p></o:p> UCLA - Center for Digital Humanities<o:p></o:p> Network Services<o:p></o:p> Linux Systems Engineer<o:p></o:p> <st1:Street w:st="on"><st1:address w:st="on">337 Charles E. Young Drive East</st1:address></st1:Street><o:p></o:p> PPB 1020<o:p></o:p> <st1:place w:st="on"><st1:City w:st="on">Los Angeles</st1:City>, <st1:State w:st="on">CA</st1:State> <st1:PostalCode w:st="on">90095-1499</st1:PostalCode></st1:place><o:p></o:p> 310/206-8216<o:p></o:p> <img width=53 height=90 id="Picture_x005f_x005f_x005f_x0020_1" src="cid:image001.jpg@01C87887.F1189FA0" alt=RHCE><o:p></o:p> <o:p> </o:p> </div> </body> </html>