[ale] Centos 7 installer

DJ-Pfulio djpfulio at jdpfu.com
Mon Mar 9 20:43:33 EDT 2015


The smart RAID installer in RHEL and CentOS are about the only things I envy
from the Ubuntu side.  Over here, they get confused with anything RAID and don't
handle encryption that isn't THEIR default way well at all either.

Not enough to switch, but ... I can be jealous for 1 thing, right?

On 03/09/2015 08:32 PM, Damon L. Chesser wrote:
> yeah, I have to put on my curmudgeon hat here.  what was wrong with a linear
> install?  This spoke and wheel thing is for the birds, especially when it comes
> to complex hard drive layouts, like multi mdadmin drives and LVM + encryption. 
> I am sometimes surprised at how well it ferrets out my intent, but if it is
> wrong, it gets damn hard to fix it.  Their time would be better spent by
> designing a UI completly different from an UI that just gets out of your way and
> lets you get things done, no wait:  Never mind.
> 
> 
> 
> On 03/09/2015 08:18 PM, Jim Kinney wrote:
>>
>> Always fun learning new tricks.
>>
>> The installer in C7 is from Fedora 19. It looked like the process to create
>> software raid 1 with triple mirror just didn't exist.
>> I was wrong :-)
>>
>> I have an older supermicro 1u that has LSI sas2008 raid chip. It doesn't do
>> triple mirror. It does raid 1e.
>>
>> The centos 7 installer "did the right thing" as I selected all drives for use
>> and manually created my layout.
>>
>> I created a 500M /boot and selected type raid 1 and xfs filesystem. Ditto for
>> / and /home. Swap was it's own beast.
>>
>> Once a mount point is selected, the "tools" icon allows drive selection for
>> the partition. The default is all drives.
>>
>> I ran a fast, basic install to see what it would do. Mdstat shows I have 3
>> triple mirror partitions :-)  Currently, the big home one is synching (2TB in
>> 4 hours across 3 drives - not bad for SATA2 drives - controller supports SAS2
>> but the budget didn't).
>>
>> The swap was placed in an lvm that spanned equal size partitions across all 3
>> drives.
>>
>> Nice.
>>
>> Happy admin.
>>


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