enlarging a partition on a remote server

[robert rottermann]

Hi friends in Ubuntu

on a remote server I have a 500GB disk, of which only a 50GB partition is us.

Disk /dev/sda: 500 GiB, 536870912000 bytes, 1048576000 sectors
Disk model: Virtual disk
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: 0x029955ab

Device     Boot   Start        End    Sectors   Size Id Type
/dev/sda1  *       2048     999423     997376   487M 83 Linux
/dev/sda2       1001470 1048573951 1047572482 499.5G  5 Extended
/dev/sda5       1001472 1048573951 1047572480 499.5G 8e Linux LVM


Now I would like to enlarge the sda1 parttion to use all or most of the disk.

The sda1 partition is nearly full,  1GB left.

How should I best do that?


Thanks

Robert


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[Liam Proven]

On Thu, 17 Dec 2020 at 14:42, robert rottermann <[hidden email]> wrote:
>
> Hi friends in Ubuntu
>
> on a remote server I have a 500GB disk, of which only a 50GB partition is us.

"us" here means "used" or "in use", right?

If so, OK, that sounds fair enough. But the info that you follow it
with contradicts what you said.


> Disk /dev/sda: 500 GiB, 536870912000 bytes, 1048576000 sectors

500 GiB disk, OK, fine.

> /dev/sda1  *       2048     999423     997376   487M 83 Linux

sad1 is not 50GB as you said. It is 486 *meg*, i.e. just under half of 1GB.

> /dev/sda2       1001470 1048573951 1047572482 499.5G  5 Extended

OK -- you said the rest of the disk was not in use, but it is.

> /dev/sda5       1001472 1048573951 1047572480 499.5G 8e Linux LVM

It has an LVM volume in it.

The disk is full. The _real_ question is what is in that LVM volume.
It could be a partition or lots of partitions or part of a volume set
spread across other disks -- LVM can do all of that. It could also be
a single encrypted volume. We can't tell you. Only you can find out
what is in there and decide if you can get rid of it.

> The sda1 partition is nearly full,  1GB left.

Since its total size is less than a gig, I think this is wrong. Maybe 1MB left?

There is an entirely separate question here, too: *how* to enlarge it.

This is a virtual disk. So therefore, it is on a virtual machine,
under some kind of remote hypervisor. What kind of hypervisor? How do
you access it?

I am not very familiar with working with remote VMs. I've done it but
not a lot. so I cannot even say what the normal or standard way of
doing this might be; I don't know.

If it was a _local_ VM and I had access to a graphical console to it,
I'd boot it from a live medium -- i.e. the ISO of a recent version of
Ubuntu -- and use GParted to enlarge the partition. But this may not
be possible for you. As you've not said what the remote system is or
what access you have, we can't advise further.

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