Install ubuntu

From CSBLwiki

(Difference between revisions)
Jump to: navigation, search
(2. Moving home folder to HDD)
 
(5 intermediate revisions not shown)
Line 8: Line 8:
#Boot with live ubuntu CD
#Boot with live ubuntu CD
caution : disconnect internet, otherwise you will get retrieving error (stop at 43 of 53)
caution : disconnect internet, otherwise you will get retrieving error (stop at 43 of 53)
-
 
+
#Select erase and install ubuntu (second option)
-
#select erase and install ubuntu (second option)
+
#File system: ext4 or btrfs
-
 
+
#Complete installing ubuntu
-
#complete installing ubuntu
+
-
 
+
#Boot with live ubuntu cd and select 'try ubuntu'
#Boot with live ubuntu cd and select 'try ubuntu'
-
 
+
#Execute gparted partition editor
-
#execute gparted partition editor
+
  Remove linux-swap (It occupies too much space)
  Remove linux-swap (It occupies too much space)
  Remove Exteend
  Remove Exteend
Line 22: Line 19:
  Create linux-swap  space occupying 1 GB
  Create linux-swap  space occupying 1 GB
  'Apply'
  'Apply'
 +
#Restart
-
#Restart
+
===2. Optimization to SSD===
 +
# turn on Trim
 +
Edit /etc/fstab
 +
UUID=ac39c463-fe88-45ea-a4dd-f4eb6117141c  /  ext4  '''discard,noatime''',errors=remount-ro  0  1
 +
# tunr off swap
 +
Edit /etc/sysctl.conf
 +
vm.swappiness=1
 +
vm.vfs_cache_pressure=50
 +
 
 +
===3. Mounting HDD to home folder===
 +
In case, mounting HDD containing home folder files,
 +
create all users before mounting to prevent overwritting.
-
===2. Moving home folder to HDD===
 
To get more information, go https://help.ubuntu.com/community/Partitioning/Home/Moving
To get more information, go https://help.ubuntu.com/community/Partitioning/Home/Moving
#Find the uuid of the Partition
#Find the uuid of the Partition

Latest revision as of 07:39, 27 September 2012

<html> <style type="text/css">

.basic {

  font-family : helvetica;
  font-size : 12pt;

}

pre {

  font-size : 12pt;
  padding: 10pt;
  margin: 5pt 0;
  border: 2px solid #abcdef;
  background-color: #f9f9f9;
  font-family:sans-serif;
  line-height: 160%;

}

</style> </html>

Contents

Clean installation of ubuntu in the SSD with HDD being used /home folder.

1. Installation of ubuntu

  1. Boot with live ubuntu CD

caution : disconnect internet, otherwise you will get retrieving error (stop at 43 of 53)

  1. Select erase and install ubuntu (second option)
  2. File system: ext4 or btrfs
  3. Complete installing ubuntu
  4. Boot with live ubuntu cd and select 'try ubuntu'
  5. Execute gparted partition editor
Remove linux-swap (It occupies too much space)
Remove Exteend
Extend /dev/sda1 to full capacity leaving 1 GB (1000 MB)
Create Extended partition to allocate (1 GB) (partition type: Extended)
Create linux-swap  space occupying 1 GB
'Apply'
  1. Restart

2. Optimization to SSD

  1. turn on Trim
Edit /etc/fstab
UUID=ac39c463-fe88-45ea-a4dd-f4eb6117141c  /  ext4   discard,noatime,errors=remount-ro   0   1
  1. tunr off swap
Edit /etc/sysctl.conf 
vm.swappiness=1
vm.vfs_cache_pressure=50

3. Mounting HDD to home folder

In case, mounting HDD containing home folder files, create all users before mounting to prevent overwritting.

To get more information, go https://help.ubuntu.com/community/Partitioning/Home/Moving

  1. Find the uuid of the Partition
$ sudo blkid

take note (copy&paste into a text-file) the uuid of the partition that you have set-up ready to be the new /home partition.

  1. Setup fstab

Duplicate your fstab file: $ sudo cp /etc/fstab /etc/fstab.$(date +%Y-%m-%d) Compare the two files to confirm the backup matches the original:

$ cmp /etc/fstab /etc/fstab.$(date +%Y-%m-%d)

Open the original fstab in a text editor:

$ sudo vim /etc/fstab 

And add these lines into it

(identifier)  (location, eg sda5)   (format, eg ext3 or ext4)      (some settings) 
UUID=????????   /home    ext3          nodev,nosuid       0       2 
and replace the "????????" with the UUID number of the intended /home partition.
Personal tools
Namespaces
Variants
Actions
Site
Choi lab
Resources
Toolbox