Problems Installing Lubuntu, Disk Inaccessible

Support and Help
1

Please, I need help. I am an amatorial user, I had on my PC a not yet supporter version of Linux Mint, with a second internal hard disk that I have been using as deposit, I am not sure but I suppose the file sistem of this hard disk is ntfs type…or fat 32…surely is a quite old disk, MBR type, manufacter Western Digital, 500 Gb. Before install lubuntu , with Mint I created on second disk a swap partition of 15 Gb…then dowloaded Lubuntu 25.10 and installed it.
Now the second hard disk is recognized by the sistem, but if I try to mount it, the system say that disk can’t be mounted.
I tried also to manage by terminal, but the disk is labeled only like PMBR type, it has no Uuid. I am quite desperate…I have important files on this second hard disk.
Someone can help me please?

P.S. : Now I have tried to install an old version of Window Vista, but the situation is the same: the second disk is recognized, but unaccessible, if I try to open it the system say I have to format it before using, but in this way I would lost all the dates.

2

Welcome to Ubuntu Discourse :slight_smile:

I moved your post to its own topic for better support.

Thanks

3

You mentioned Linux Mint before that; Linux Mint is a GNU/Linux system which requires a POSIX compatible file-system, neither NTFS or FAT32 are POSIX compatible being usually used by Microsoft WIndows; so you won’t have used NTFS or FAT32 for your Linux Mint install (though GNU/Linux systems can store data files on NTFS & FAT32, as they’re commonly used for transferring files between POSIX OSes & Microsoft Windows boxes)

That usually refers to the partition table; and not file-system. The partition table is like an index, that has pointers to the actual partitions you create; you place file-systems on those partitions. MBR relates mostly to booting the system; ie. the master boot record is the first sector of the disk and is used to boot really old IBM PC compatible computers.

For us to know more, you should have copy/pasted the commands and output you got into your question, so we understand better.

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4

Correction: the Lubuntu version is 24.04.3 LTS.
These are the commands I tried:

sudo blkid

…beetwen the units, the secondary disk figures as
dev/sdb PTTYPE “PMBR”

5

Hi,

It would be much easier for us to help if you can please post the full output of commands:

From either a live or installed session please run both these commands:

sudo fdisk -l
sudo blkid

Copy the terminal output and paste back here in a reply. Then highlight the text and click on the </> icon in the composer to wrap with code tags.

Thanks

6

I have resolved the problem…simply I reinstall Lubuntu and manually I give a mount point to the secondary disk, that effectly have an ext4 filesystem, as you have said. I have given the mount point root.
Now all the files are usable.

Thank you very much to all for your patience.

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