What is the PortableBaseLayer Disk

I recently looked in the Disk Management tool, and I noticed a (virtual) disk that I didn’t recognize. The volume’s name is “PortableBaseLayer.”

I also noticed it while using the manage-bde -status command. It concerned me, as my whole disk is supposed to be encrypted by BitLocker. Please see the images below.

Can anyone tell me anything about this?

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Dualbooting Ubuntu, just installed and disk space is already full

Full disclosure, I don’t really know what I’m doing here, I just really hate Windows 10 and am trying to use Ubuntu instead. If this question has been already asked I apologize, I’ve been reading many other questions and either couldn’t understand them or couldn’t even tell if our problems were the same.

I just got a brand new Dell laptop with Windows 10 as the default operating system. I bought a SanDisk 64 GB USB drive and followed the HowToGeek instructions for setting up the partition and booting directly from the USB drive. I thought I was successful since my computer now automatically boots from the USB and runs Ubuntu. However, after running Ubuntu and trying to install additional programs, I checked the disk space and it only lists me as having 4.1 GB of space, with only 136 MB of space available. Since even the USB has 64 GB of space, this seems very wrong, and I thought that the whole point of partitioning the hard drive was to provide storage anyway. What is going on here, and how do I fix this?

Just installed LVM Raid 1 on a new server with 2x 10Tb hard drives and the Disk I/O is killing everything else every second

I copied a bit of data on my LVM based RAID1 (not hardware RAID) with 2× 10Tb hard drives:

/dev/mapper/users-users  9.1T  1.9G  8.6T   1% /home 

and now it’s killing my I/O to the point where my mouse, keyboard, video are blocked/unblocked/blocked/unblocked…

I’m thinking that maybe something is wrong at the hardware level but wondering what that could be. Wondering what to test first to try to make a better diagnostic.

I have another 2 drives in the same drive array but they are not setup in RAID mode.

Looking at the output of iotop it tells me that there is about 2Mb/s written to disk, a pretty much permanent write… When I look at the Disk LED, I can see them come up and out over and over again and can hear the seeking heads too.

Trying to watch a video, it fails really bad. Choppy would not even be the word here. It’s like one image every other second if even that much. So a really big I/O killer for the entire computer.

Wondering whether someone would have encountered such a problem before and what can be done to fix it if possible (I certainly hope it is possible!)

My motherboard is a Supermicro X11DPH-T and I also got a case from Supermicro the 745BAC-R1K28B2 4U Full Tower Chassis. I’m running Ubuntu 18.04 LTS. The server is new and so is the install (i.e. not an upgrade from 16.04 or who knows what…)

Would there be a way to know whether a specific hard drive or some other hardware device is causing the trouble?

How to find the large directory which is reserving the biggest disk space?

How to find (as grouped) the directory who is taking all the disk spaces?

# df -h Filesystem      Size  Used Avail Use% Mounted on /dev/vda1        60G   54G  6.4G  90% / devtmpfs        1.4G     0  1.4G   0% /dev tmpfs           1.4G     0  1.4G   0% /dev/shm tmpfs           1.4G  161M  1.3G  12% /run tmpfs           1.4G     0  1.4G   0% /sys/fs/cgroup tmpfs           285M     0  285M   0% /run/user/0 

It does not help to see /dev/vda1 is 90%, how to check which directories having the largest disk reserve?

example:

/var/log/httpd    20GB /var/log/pluto    10GB /var/log/syslog    5GB /var/log/tcpdump   1GB /...              restGB 

Extend linux partition disk

I want to modify the partitions of my 1TB disk. The disk is shared with Windows . Does it is possible to extend one partition? Which would be the best to augment? What are my options?

This is how it is now:

sda1    928 NTFS    sda3      8 swap (linux)    sda4     24 Ext4     sda5     20 Ext4    sda2     19 NTFS    

GNOME-disks partition map

How to delete non existing external disk

Long time ago i was trying to fix a corrupted sd card, or usb, i don’t remember. After some failed attemps, i give up, but the disk keeps showing up with fdisk -l, gparted, and disks. How can i delete this ghost disk?

This is the ghost disk:

Disk /dev/sdb: 22,4 GiB, 24015495168 bytes, 46905264 sectors Disk model: SanDisk SSD U100 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: gpt Disk identifier: BC49F78D-AD2F-4BEA-8731-80F808B9120D

Ubuntu won’t boot – error: attempt to read or write outside of disk ‘hd0’

so the other day I unplugged my PC running Ubuntu 18.04 LTS (it was completely shut down when I plugged it out), and a week later, I plugged it back in and since then I can’t boot it with that issue:

"error: attempt to read or write outside of disk 'hd0'" "Entering rescue mode..." "grub rescue>" 

The PC has a single 120GB SSD installed, single partition, and I can’t really remember what partition type it is.

PC: Core2Quad Q8200 2.33GHz 6GB DDR2 RAM Asus P5K-SE motherboard ((some low spec AMD gpu with 1GB of memory)) Crucial 120GB SSD 

Just don’t tell me I have to reinstall Ubuntu, for the 3rd time now.

EDIT: turns out it was a faulty… SATA cable.

Install Windows 10 Alongside Existing Ubuntu 19.04 Build in a Separate Hard Disk Drive

I am using Ubuntu 19.04 and due to gaming I want to install Windows 10 in a separate hard disk drive.

I have searched a lot and I haven’t managed to find clear instructions, especially in a build that has already Ubuntu installed. Most guides I found made it clear that you should install Windows 10 first.

So how can I install Windows 10 in a second hard disk drive in a manner that doesn’t conflict with my Ubuntu installation, as this is the one I am using all day except from gaming?

Please don’t link the other questions in here about this same issue because obviously they weren’t helpful.