1

[ubuntu] SSD, Trim & Full Disk Encryption

view story
linux-howto

http://ubuntuforums.org – I installed Ubuntu 12.04 using the alternate install image onto an 120GB SSD. during install i created a boot partition and a encrypted partition (Extended) containing the root file system and home directory. Question: As its an SSD i want to enable 'TRIM', with the possible complication of and extended encrypted partition is this still as simple as adding the 'TRIM' argument in the 'fstab' file or is their a further process i need to go through? Thanks If you feel that you require further information please ask. (Hardware)

dayu's picture
Submitted by dayu on 08/19/2012

Stories similar to [ubuntu] SSD, Trim & Full Disk Encryption

SSD TRIM Support 21 weeks 3 days ago

mynis01 wrote:This guide here explains how to enable TRIM and verify that it is working. All you have to do really is open up /etc/fstab and add the "discard" option to the partition you're trying to enable TRIM on.Also, here is a random question for you.I've messed up my Tint2 config file pretty bad with experimentation, how would I go about resetting it?

F17: SSD TRIM RAID not working 47 weeks 4 days ago

I installed a new box with F17 with all updates.

The box has an SSD drive that is part of a RAID-1 array.

/boot is also on this SSD on a regular partition.

I have configured for TRIM(discard) but no TRIM seems to be occurring.

I have done the following to support TRIM:

Code: checked that the SSD supports TRIM by running hdparm -I /dev/sda

added noatime,discard options in /etc/

When I reinstalled Ubuntu 12.10 64-bit on my SSD, I chose the option to use LVM in Ubiquity. I am trying to find out how to enable TRIM for my SSD.

Hi guys

I created an encrypted partition using cryptsetup. I can confirm that the partition is encrypted by checking the partition in the disk utility (there would be an icon of a pad lock on the encrypted partition). How do I check if the partition is encrypted from a terminal? fdisk -l doesnt give any information whether it is an encrypted partition or not! Any ideas?

Regards, Anish

I'm trying to install Ubuntu with a native ZFS root filesystem on top of an encrypted partition.

Simple question, I have some servers that were running 10.04 that I upgraded to 12.04.

So they were installed using 10.04 (kernel 2.6.32* I believe) and the version of ext4 that shipped then.

By upgrading to 12.04 and the newer kernel, does that enable TRIM automatically?

I've got SIFT (based on Ubuntu 9.10) installed on a work laptop. We're trying to encrypt the entire installation (root partition and swap), which is apparently doable using LUKS, but I'm having some trouble getting it all to work.

Here's where I'm at so far:

I have an unencrypted /boot partition, one unencrypted root partition, and one encrypted partition.

Hello! I have an ASUS N61JV-X2 notebook PC and I downloaded the Ubuntu 11.10 64 bit GNU/Linux Alternative Install .ISO file and I burned it to a blank 700 MB CD-R disc. I followed joern's guide to installing Ubuntu 10.10 with full disk encryption. Here's what I did.

when i installed ubuntu 12.04 (on SSD), i used the alternate ISO to make two primary partitions:

first a /boot partition 300MB second /encrypted partition (rest of the space on the SSD!)

when i update the system, more and more space is being used from the /boot partition and is currently 78% full.

Question: how do i clear out unused / old files from the /boot partition?

I don’t want to be doin