View Full Version : [ubuntu] Ubuntu SSD tweaks trashed my /etc/fstab

October 16th, 2011, 12:40 AM
I created this thread: http://ubuntuforums.org/showthread.php?t=1861277 & fixed the problem BUT the initial situation still remains. My SSD is getting ripped apparently by Ubuntu. With nothing installed it's slowing down very quickly. I read a few threads & some other blogs then followed this:


I only got as far as adding the following to my fstab:

noatime,discard,data=orderedit looked like this:

# /etc/fstab: static file system information.
# # Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
# # <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda2 during installation UUID=124f0412-3e68-46f4-a9df-162dc81b94e6 /
ext4 noatime,discard,data=ordered,errors=remount-ro 0 1
# /home was on /dev/sdb5 during installation UUID=e3a1a937-a023-4757-a0bb-e3d4c737a7a4 /home
ext4 defaults 0 2
# /tmp was on /dev/sdb7 during installation UUID=80cecb02-84e2-4e39-8aea-3ddeeca0b391 /tmp
ext4 defaults 0 2
# /var was on /dev/sdb8 during installation UUID=4e41415f-9378-4fe7-9d2a-95f9f8778802 /var
ext4 defaults 0 2
# swap was on /dev/sdb6 during installation UUID=2f7fd365-a71d-4401-86dd-29b8002b1e2a none
swap sw 0 0I could not get into my system.

SO, what did I do wrong? I can't fathom anything as I copied what was on the other site straight in. If I did nothing wrong, how can I tweak this install to stop constantly accessing my SSD as that blog states?
Please provide insight or I am going to have to leave Ubuntu & lose the three weeks I've spent here learning....... please help

October 16th, 2011, 08:34 PM
^^successfully added the above to /etc/fstab & it's working.

Been reading:

& some others. scared to try the rest after yesterday but it sounds as if this at least needs done for the ssd:

If you have several disks or a mix of SSD and mechanical disks, install the sysfsutils package and add the following line at the end of /etc/sysfs.conf:
block/sda/queue/scheduler = noop

October 17th, 2011, 03:38 PM
good info on scheduler: