[CentOS] CentOS 6 Partitioning Help

Fri Sep 2 00:58:15 UTC 2011
Tom H <tomh0665 at gmail.com>

On Thu, Sep 1, 2011 at 1:44 PM, John Hinton <webmaster at ew3d.com> wrote:
> On 9/1/2011 1:19 PM, Tom H wrote:
>> On Thu, Sep 1, 2011 at 1:20 AM, Simon Matter<simon.matter at invoca.ch>  wrote:
>>
>> from
>> http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/s2-diskpartrecommend-x86.html
>> Do not place /usr on a separate partition If /usr is on a separate
>> partition from /, the boot process becomes much more complex, and in
>> some situations (like installations on iSCSI drives), might not work
>> at all.
>
> Thanks for this Tom. I was operating in old_schema mode and now I see I
> need to do a couple of re-installs as I did create /usr partitions. I do
> wonder why upstream left /usr as a suggestion in the partitioning
> program used inside of Anaconda?
>
> I do believe that 6.0 has more core changes than any release I remember
> to date.
>
> Good to find this out 'before' I got lots of stuff on that system!! ;) I
> can easily just copy my configs and start over.... way easier now than
> on a in service system!

You're welcome.

You must have forgotten the 4-5 transition and, for example, the
expanded-selinux-by-default change that it brought. :)

The 6-7 transition will be interesting simply judging from F15 and
F16: systemd and grub2. And most probably btrfs too.

I was pressed for time when I posted the two links. Poettering says in
his blog that you can have "/usr" on a separate partition if you mount
it in the initramfs. With dracut, it means using "--add fstab-sys" (or
adding "fstab-sys" to the "/etc/dracut.conf" modules list) and
creating an "/etc/fstab.sys" with a "/usr" line".