Hi
I have made 2 partitions that I have setup for LVM these partitions are 200G and formatted with ext4. However, when I do an “fdisk -l” on the drive it shows that these partitions
are only 4G in size, I wanted them to be the whole 200G. What have I done wrong and how can this be fixed ?. I assume if I try “mkfs.ext4” again I will end up with what I have now.
Your help is appreciated Thank you.
To begin with, sorry but saying things “… when I do an “fdisk -l” on the drive it shows …” without showing it to us is not a good way to inform your potential helpers.
Please copy that from your terminal, starting with the prompt, the mouse sweep should include that prompt, the command, the output and the next prompt. Paste it in your post between CODE tags. You get the CODE tags by clicking on the button with the # in the tool bar of the post editor.
Posting the computer facts in this way is very easy and relieves you then from typing a lot of explanations (that in many cases are just your conclusions, others may come to other conclusions based on the same facts).
And apart from the
fdisk -l
you could also post what your LVM configuration is with the use of pvdisplay, vgdisplay and lvdisplay.
We need that the the more because IMHO your description is not very clear. You say that you use two partitions with LVM. That means for me that they are then LVM Physical Volumes. But you also say that you created ext4 file systems on those partitions. You can not have both of them. Thus seeing what you have in reality is rather important.
Thank you hccv
I must have had a little brain fade yesterday. Here is what you requested
fdisk -l
Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0xb63d5863
Device Boot Start End Sectors Size Id Type
/dev/sdb1 2048 734005247 734003200 350G 83 Linux
/dev/sdb2 734005248 775948287 41943040 20G 8e Linux LVM
/dev/sdb3 775948288 1258293247 482344960 230G 8e Linux LVM
Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00037a16
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 2048 1026047 1024000 500M 83 Linux
/dev/sda2 1026048 2050047 1024000 500M 83 Linux
/dev/sda3 2050048 2152447 102400 50M 82 Linux swap / Solaris
/dev/sda4 2152448 976773119 974620672 464.8G f W95 Ext'd (LBA)
/dev/sda5 2154496 6361087 4206592 2G 82 Linux swap / Solaris
/dev/sda6 6363136 90253311 83890176 40G 83 Linux
/dev/sda7 90255360 976773119 886517760 422.7G 83 Linux
Disk /dev/mapper/PDFGroup0-Linux: 5 GiB, 5368709120 bytes, 10485760 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/PDFGroup0-Network: 5 GiB, 5368709120 bytes, 10485760 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
pvdisplay, vgdisplay and lvdisplay.
--- Physical volume ---
PV Name /dev/sdb2
VG Name PDFGroup0
PV Size 20.00 GiB / not usable 4.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 5119
Free PE 2559
Allocated PE 2560
PV UUID quxo4i-jJfa-UE71-PIG4-QcAd-lIJN-O024k3
--- Physical volume ---
PV Name /dev/sdb3
VG Name VideoGroup0
PV Size 230.00 GiB / not usable 4.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 58879
Free PE 58879
Allocated PE 0
PV UUID kJWVa3-eQVO-hQBr-lfow-9EcJ-wivp-bIzv1P
--- Volume group ---
VG Name PDFGroup0
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
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 20.00 GiB
PE Size 4.00 MiB
Total PE 5119
Alloc PE / Size 2560 / 10.00 GiB
Free PE / Size 2559 / 10.00 GiB
VG UUID iYEh2f-6lZ3-UGmW-qu0y-3RZU-UzZa-e5cAAR
--- Volume group ---
VG Name VideoGroup0
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 230.00 GiB
PE Size 4.00 MiB
Total PE 58879
Alloc PE / Size 0 / 0
Free PE / Size 58879 / 230.00 GiB
VG UUID GF1T4g-g4sx-RnWa-maH6-BPTp-zBKr-QYNUlk
--- Logical volume ---
LV Path /dev/PDFGroup0/Linux
LV Name Linux
VG Name PDFGroup0
LV UUID l2VLyM-cQlt-hxUc-Hqg1-KtKA-m0mT-WGKBqX
LV Write Access read/write
LV Creation host, time Leap42-Server, 2017-10-21 09:30:31 +1030
LV Status available
# open 1
LV Size 5.00 GiB
Current LE 1280
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 1024
Block device 254:0
--- Logical volume ---
LV Path /dev/PDFGroup0/Network
LV Name Network
VG Name PDFGroup0
LV UUID mTpsFb-q32S-LfBd-Wbd1-btHf-dUwj-k0SxoU
LV Write Access read/write
LV Creation host, time Leap42-Server, 2017-10-21 09:31:25 +1030
LV Status available
# open 1
LV Size 5.00 GiB
Current LE 1280
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 1024
Block device 254:1
LVM is a container not a file system you must put partitions and file systems in the LVMs
I do not see anything with size 4G in “fdisk -l” output.
No partitions!
Partitions are direct on a disk configured through a partition table.
LVM uses Physical Volumes (which can be partitions, but also whole disks), they are gathered in Volume Groups and the Volume Groups are divided into (one or more) Logical Volumes.
Those Logical Volumes are now the containers of the same things that will be put into partitions by most people: swap space and file systems. But please do not confuse LVs with partitions, the discussion then becomes then a mess.
To the OP, please next time please extend your mouse sweep a little bit so that it also includes the prompts (before and after) and the commands (this I asked you earlier!). Then we have all as you see it. And you do not have to explain with extra story telling that what follows is
pvdisplay, vgdisplay and lvdisplay.
because it is all there exactly as you did it, including options or whatever.
=================
So, you have given partitions sdb2 (20G) and sdb3 (230G) the id 8e (Linux LVM).
Then they are made into PVs of 20G and 230G resp.
Then there are two VGs, each one based on one of the PVs, PDFGroup0 of 20G and VideoGroup0 of 230G.
There is a LV Linux on VG PDFGroup0 with the size of 5G.
There is a LV Network on VG PDFGroup0 with the size 5G.
And that is it.
So there is still ~10G unused on VG PDFGroup0 and VideoGroup0 is not used at all.
To begin with, like @avidjaar, I wonder why you are talking about number like 200G and 4G. They are nowhere in what we see here.
And then of course, you talk about having “formatted” ext4 file systems on partitions. Which partitions?
And did you do anything with those two LVs? Created a file system on them? When yes, tried to mount them? In that case, please show
df -h
to see what the size of those file system is.
And maybe, referring to to old saying “Describe the goal, not the step”, you could explain what you are trying to achieve. Until now we can only explain what we see, but we have no idea if this comes one step nearer to what you want.
Personally, I do not understand much about what you are doing. First you split off two partitions, then you made them into two VGs. Why not just one partition, one VG and then dividing that in the LVs you need?
Why are you using LVM in the first place and are you not using simply partitions? I know there might be reason (like encryption) but we have no idea at all what you are after.
Thank you hcvv I now understand a bit more about LVM . I am going to have a rethink and possibly start over.