[LUNA] Upgrading to CentOS 6.n

[Paul F. Pearson]

I recall reading that one way to get partitioning right in the kickstart is to have the "%pre" stanza call parted to calculate the start/stop of each partition; parted can auto-align properly.

If this is a "one-time, one machine" thing, you could do the partitioning manually before hand and then tell kickstart to use the existing partitions. 

----- Original Message -----
> 
> 
> I have an older server running FC14-64-bit which I am planning to
> upgrade to CentOS6.n. Due to excruciatingly poor decision making on my
> part in the original install, I will also be re-partitioning in the
> process :-). I have a kickstart file setup & ostensibly ready to go. For
> now it sets up 4 partitions per drive, boot, swap, root & home. Boot,
> root & home will be LVM'ed into larger 'partitions' & then the install
> will proceed. I am planning on a RAID1 LVM for /boot, RAID10 for root, &
> RAID0 for /home. I am also considering RAID5 for /home. I have another
> machine running NetBSD 6.1.5 with a similar disk-partition (actually
> slice) arrangement, with a RAID5 /home, 4 data slices, 1 parity, 1
> hot-swap/spare. Despite my best efforts, I have misaligned
> disk-blocks/RAID elements/FS blocks & resulting horribly slow I/O :-/. I
> want to avoid that w/ this install :-). Will the LVM RAID5 kickstart
> setup 'do the right thing' WRT disk-block/LV alignment by itself, or are
> there any gotchas (hopefully w/ work-arounds :-) ) for a RAID 5 setup ?
> I am comfortable w/ a RAID0 here, everything on that 'partition' will be
> backed up elsewhere across my LAN, but I wouldn't mind the extra
> robustness WRT disk failure of a RAID5 vs. RAID0, I just don't want the
> performance hit of a fubar'ed install :-/ .... TIA for *ANY*
> advice/clues/URL's/etc. on this matter, & have a good one ....
> 
> 
> --
> 
> 	William A. Mahaffey III
> 
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> 
> 	"The M1 Garand is without doubt the finest implement of war
> 	 ever devised by man."
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