Re: resizing qemu image

[Robert Moskowitz <rgm@xxxxxxxxxxxxxxx>]

On 7/21/21 4:28 PM, Jamie Fargen wrote:

Is it possible for you to keep the backup for now?

If so run the following commands:

1) Keep the backup

# mv /var/lib/libvirt/images/fedora21.qcow2  /var/lib/libvirt/images/fedora21.qcow2.orig

2) Copy the resized qcow2 from thumb drive to /var/lib/libvirt/images/fedora21.qcow2

3) Boot up the VM and provide the following output:

# fdisk -l

# pvdisplay

      --- Physical volume ---
      PV Name               /dev/vda2
      VG Name               fedora
      PV Size               19.51 GiB / not usable 2.00 MiB
      Allocatable           yes 
      PE Size               4.00 MiB
      Total PE              4994
      Free PE               2570
      Allocated PE          2424
      PV UUID               YmdEGp-gb7o-Gqm4-qfUG-Emi1-92hX-uoXKd8

# lvdisplay

      --- Logical volume ---
      LV Path                /dev/fedora/swap
      LV Name                swap
      VG Name                fedora
      LV UUID                wcCMpc-LjV4-ahaQ-dLnZ-rIfx-5MBS-yGrGPT
      LV Write Access        read/write
      LV Creation host, time localhost, 2014-12-31 10:29:38 -0500
      LV Status              available
      # open                 2
      LV Size                1.00 GiB
      Current LE             256
      Segments               1
      Allocation             inherit
      Read ahead sectors     auto
      - currently set to     256
      Block device           253:1
       
      --- Logical volume ---
      LV Path                /dev/fedora/root
      LV Name                root
      VG Name                fedora
      LV UUID                k5Iqpt-dGBC-V4jJ-2UPn-sG2w-dwc5-npzUHl
      LV Write Access        read/write
      LV Creation host, time localhost, 2014-12-31 10:29:41 -0500
      LV Status              available
      # open                 1
      LV Size                8.47 GiB
      Current LE             2168
      Segments               1
      Allocation             inherit
      Read ahead sectors     auto
      - currently set to     256
      Block device           253:0

# vgdisplay

      --- Volume group ---
      VG Name               fedora
      System ID             
      Format                lvm2
      Metadata Areas        1
      Metadata Sequence No  4
      VG Access             read/write
      VG Status             resizable
      MAX LV                0
      Cur LV                2
      Open LV               2
      Max PV                0
      Cur PV                1
      Act PV                1
      VG Size               19.51 GiB
      PE Size               4.00 MiB
      Total PE              4994
      Alloc PE / Size       2424 / 9.47 GiB
      Free  PE / Size       2570 / 10.04 GiB
      VG UUID               SEGNhI-DBMm-dnsm-fFRT-ZfPA-0403-EKmNJG

Once this info is provided we can advise on how to expand the filesystem.

    gparted increased the partition size of vga2, but now I need to grow
    the root in it.  It has been too many years since I use to do this
    stuff.  :(

Regards,

-Jamie

On Wed, Jul 21, 2021 at 4:10 PM Peter Boy <pboy@xxxxxxxxxxxxx> wrote:

> Am 21.07.2021 um 21:46 schrieb Robert Moskowitz <rgm@xxxxxxxxxxxxxxx>:
>
>>> But now the instructions I am finding seem to offer different approachs, and might not be for running on Fedora.  What is the 'best' approach forward?
>> To what instructions do you refer?
>
> How do I actually increase the partitions within the image?
>

You have (re)start the virtual machine and increase and reorganise your storage from inside the virtual machine the same way as your would do it with a physical machine.

The details depend on the current structure of your (virtual) disk. How did you originally create your VMs disk image?

Usually you may have:
Partition 1: biosboot or efi
Partition 2: Linux file system /boot
Partition 3:
   either (a) a filesystem containing all your data
   or (b) a LVM VG, containing a logical volume with a file system for root.

What is your storage structure?

You may find some Fedora specific  into at:

https://docs.fedoraproject.org/en-US/fedora-server/virtualization-vmcloud/


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