Greetings
I am attempting to set up linux-raid on a blfs system. I used 6 x 3TByte
disks. I used parted to partition them as single 3Tbyte partitions
/dev/hd{a,b,c,d,e,f}1. Before I read up on raidhowto
I inadverently did mkfs.ext4 on two of them creating ext4 filesystems on
hda1 and hdb1 . After reading a little on raid-howto I (just in case ) tried
removing the partitions/filesystems in parted by repartitioning but each
time parted reports ext4 filesystem.
--Firstly I do not know if there is a way to remove a fileystem except by
repartioning. Is there a way the un-mkfs?
--Secondly I do not know if the existance of a filsyetem on two of the disks
is detremintal to raid creation (which followed).
For the raid setup I did:-
mdadm --create /dev/md0 --level=10 --verbose --raid-devices=6
/dev/sd{d,b,c,d,e,f}1
(I did get the the report for the two disks with the ext4 filesystem
"... /ev/sdb1 appears to contain an ext2 filesystem ... Jan 1970 ....layout
defaults to n2 ... proceed? to which I typed yes
and it 'semed' to work.)
After raid creation when I did this:-
mkfs.ext4 /dev/md0
formatting seem to proceeed to ~27000/67000 (blocks I presume ) then the
machine starts spwewing nonsense.
such as
xhci-hcd bal bla bbla bla
----
7536.83146 i2c mark from addr 0x50 bla bla
The machine has these
OS: clfs/blfs
kernel linux-3.11
CPU amd-phenom2 4 cores
motherboard ga-990xa-ud3 with amdsb950 sata controller
I have kernel support for raid and lvm compiled in and support for ahci in
kernel and sata controllers as modules.
could the problems be due to faulty disks, or partition size or the fact
that two of the disks already have ext4 filesystems?
advice would be appreciated
sincerely
lux-integ
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