Difference between revisions of "Ubuntu"

** If setting up software RAID follow the steps below, otherwise just select '''Guided - use entire disk and set up LVM'''

**# Select '''"Manual'''

**## Select the first disk ('''<code>sda</code>''') and on the next screen, '''Yes''', to '''Create new empty partition table on this device?'''

**## Select the FREE SPACE, then '''Create a new Partition''', and use all but the last 2GB of space,  

**## And then select type of '''Primary''', and create at '''Beginning'''

**## Change '''''Use as''''' to '''physical volume for RAID''', and change the '''''Bootable flag''''' to '''Yes''', the select '''Done setting up this partition'''

**# Repeat the above on the remaining FREE SPACE on '''<code>sda</code>''', to create another primary '''physical volume for RAID''', but ''''not'' bootable'''

**# Select the second disk, <code>sdb</code>, and repeat the steps taken for <code>sda</code> to create two identical partitions

**# On the same screen, select the '''Configure Software RAID''' option (at the top), and then confirm through the next screen

**## Select '''Create MD device''', then select '''RAID1''' (ie a mirror), then confirm 2 ''Active devices'', and 0 ''Spare devices''

**## Select both '''<code>/dev/sda1</code>''' and '''<code>/dev/sdb1</code>''' partitions, and then select '''Finish'''

**# Repeat the above to create a RAID volume using '''<code>/dev/sda2</code>''' and '''<code>/dev/sdb2</code>''' partitions

**# Now select the RAID device #0 partition (select the #1 just under RAID1 device line), and change the '''''Use as''''' and select '''Ext3...'''

**# Change the '''''Mount point''''' to '''/''', then select '''Done configuring this partition'''

**# Now select the RAID device #1 partition (select the #1 just under RAID1 device line), and change the '''''Use as''''' and select '''Swap area'''

**# Then select '''Done configuring this partition''' then finally '''Finish partitioning and write changes to disk''', and confirm to '''Write the changes to disks'''

**# Accept the "The kernel was unable to re-read...system will need to restart" complaints for each RAID multidisk, after which the install will continue (note there's a little more to do post install to ensure you can boot using the second disk should the first fail).

** DNS Server - Only required in order to configure split DNS, which is required for an exchange server install