When I do sudo apt-get upgrade, I have the following message:
WARNING: PV /dev/sda3 in VG ubuntu-vg is using an old PV header,
modify the VG to update.
What can I do?
I installed Ubuntu Server 18.04 with the LVM option and left the default partition setup. Now my main drive only has 4GB in a 1TB hard drive. How can I fix this without starting from scratch?
Results of df -h :
Filesystem Size Used Available Use% Mounted on
udev 16G 0 16G 0% /dev
tmpfs 32G 1.7M 32G 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv 3.9G 3.6G 92M 98% /
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/loop0 87M 87M 0 100% /snap/core/4917
/dev/loop1 3.2M 3.2M 0 100% /snap/stress-ng/471
/dev/loop2 90M 90M 0 100% /snap/core/6130
/dev/sda2 976M 143M 766M 16% /boot
tmpfs 3.2G 0 3.2G 0% /run/user/1000
I installed Ubuntu 11.10 with the alternate CD and encrypted the whole system (except boot) with the encrypted LVM. Update 2020: Encrypted LVM can be selected at the Installation type step of the Ubuntu install, click on Advanced features and choose Use LVM and Encrypt ...
Everything works great as before, but I would like to change the password of the encrypted LVM. I tried to follow the Tips and Tricks of this article, but it does not work. After typing:
sudo cryptsetup luksDump /dev/sda5
It says: "Device /dev/sd5 doesn't exist or access denied." I thought the encrypted partition is /dev/sda5. Any help how to change the password?
I am about to set up box to basically be a file server. I plan on having multiple drives in the box, and would like to set them all up so that they appear to be a single drive. So I could essentially have it mounted at say /media and not really care which drive gets used. I am not sure what the correct terminology for doing this is, so my Google fu is useless in this situation.
So how do I set up multiple hard drives to appear as one single drive?
As a Linux/Ubuntu newbie, what is LVM and what is it used for?
In terms of a web server installation, what benefits does it provide?
Would you recommend using it?