I have a laptop that I put centos 7 on and I started out with a 30gig partition.? I resized the other part of the disk to allow more space for centos.? I then created an unformated partition in the available space,? ran pvcreate /dev/sda4 vgextend lvname /dev/sda4 lvextend -L 184.46G /dev/lvname/root but when I run: sudo resize2fs /dev/lvname/root I get: resize2fs: Bad magic number in super-block while trying to open /dev/lvname/root Couldn't find valid filesystem superblock. How do I resize the volume? Thanks, -wes
On 5/6/2016 11:19 AM, Wes James wrote:> sudo resize2fs /dev/lvname/root > > > I get: > > > > resize2fs: Bad magic number in super-block while trying to open > /dev/lvname/root > Couldn't find valid filesystem superblock.what file system type is this /dev/lvname/root ? -- john r pierce, recycling bits in santa cruz
On Fri, May 06, 2016 at 06:19:35PM +0000, Wes James wrote:> I have a laptop that I put centos 7 on and I started out with a 30gig partition.? I resized the other part of the disk to allow more space for centos.? I then created an unformated partition in the available space,? ran > > > pvcreate /dev/sda4 > > > > vgextend lvname /dev/sda4 > > > > lvextend -L 184.46G /dev/lvname/rootI find it easiest to do lvextend -l 100%VG /dev/lvname/rootI find it easiest to do lvextend -l 100%VG /dev/lvname/root. (Then, if practical, and since it's a laptop, I'm guessing it's not a production machine), reboot from a livecd or whatever and doing e2fsk -f /dev/lvmname/root I don't know if it will solve your issue, but may be worth trying.> > > but when I run: > > > > sudo resize2fs /dev/lvname/root > > > I get: > > > > resize2fs: Bad magic number in super-block while trying to open /dev/lvname/root > Couldn't find valid filesystem superblock. >-- Scott Robbins PGP keyID EB3467D6 ( 1B48 077D 66F6 9DB0 FDC2 A409 FA54 EB34 67D6 ) gpg --keyserver pgp.mit.edu --recv-keys EB3467D6
On 5/6/2016 11:28 AM, John R Pierce wrote:> On 5/6/2016 11:19 AM, Wes James wrote: >> sudo resize2fs /dev/lvname/root >> >> >> I get: >> >> >> >> resize2fs: Bad magic number in super-block while trying to open >> /dev/lvname/root >> Couldn't find valid filesystem superblock. > > > what file system type is this /dev/lvname/root ?oops, left out the rest... since you said C7, its quite likely its XFS not extXfs ... if thats the case, then use: xfs_growfs /dev/lvname/root -- john r pierce, recycling bits in santa cruz
----- Original Message ----- | On Fri, May 06, 2016 at 06:19:35PM +0000, Wes James wrote: | > I have a laptop that I put centos 7 on and I started out with a 30gig | > partition.? I resized the other part of the disk to allow more space for | > centos.? I then created an unformated partition in the available space, | > ? ran | > | > | > pvcreate /dev/sda4 | > | > | > | > vgextend lvname /dev/sda4 | > | > | > | > lvextend -L 184.46G /dev/lvname/root | | | I find it easiest to do lvextend -l 100%VG /dev/lvname/rootI find it | easiest to do lvextend -l 100%VG /dev/lvname/root. | (Then, if practical, and since it's a laptop, I'm guessing it's not a | production machine), reboot from a livecd or whatever and doing e2fsk -f | /dev/lvmname/root | | I don't know if it will solve your issue, but may be worth trying. | | > | > | > but when I run: | > | > | > | > sudo resize2fs /dev/lvname/root | > | > | > I get: | > | > | > | > resize2fs: Bad magic number in super-block while trying to open | > /dev/lvname/root | > Couldn't find valid filesystem superblock. | > | | -- | Scott Robbins | PGP keyID EB3467D6 | ( 1B48 077D 66F6 9DB0 FDC2 A409 FA54 EB34 67D6 ) | gpg --keyserver pgp.mit.edu --recv-keys EB3467D6 if you use pass the '-r' option to lvextend it will resize the volume for you based on the filesystem that is on the volume. no need to grow it manually afterward. -- James A. Peltier IT Services - Research Computing Group Simon Fraser University - Burnaby Campus Phone : 604-365-6432 Fax : 778-782-3045 E-Mail : jpeltier at sfu.ca Website : http://www.sfu.ca/itservices Twitter : @sfu_rcg Powering Engagement Through Technology