FAI and xen xvd disks

[Rudy Gevaert]

Hello,

I was able to fix the problem in my previous thread. (Error: Error  
initialising SCSI device /dev/sda - Invalid argument).

The problem doesn't lie in the fact that parted is not able to  
partition the disk, but that I mustn't pass sda but xvda to my domU. I  
could not find this in the XEN documentation.

When I put
disk = ["phy:disk/by-vfiler/vfass9/sysdisks1/rudy_test,xvda,w"]
in my xenu config the block device /dev/xvda appears in the virtual machine.

Unfortunately fai isn't able to do any partitioning because it doesn't  
see /dev/xvda as a valid device!

By changing
/usr/share/fai/setup-storage/Init.pm (line 179):
if ($dev =~  
m{^/dev/(i2o/hd[a-t]|sd[a-t]{1,2}|hd[a-t]|vd[a-t]|xvd[a-t])(\d+)?$})

/usr/lib/fai/disk-info (last line):
egrep ' etherd/e[[:digit:]]+\.[[:digit:]]+\b| i2o/hd.\b| cciss/c.d.\b|  
ida/c.d.\b| rd/c.d.\b| hd.\b| sd[a-z]{1,2}\b|/disc\b| vd.\b|  
xvd[a-z]{1,2}\b' /proc/partitions | diskandsize

FAI detects the xvd device(s) and makes them disks.  I can now even  
use disk1 in my disk_config file

I would like to see my little change accepted upstream.

Should I report a bug for this?

Thanks

Rudy

PS the next step is to do LVM on that virtual disk.

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Rudy Gevaert          Rudy.Gevaert at UGent.be          tel:+32 9 264 4734
Directie ICT, afd. Infrastructuur  Direction ICT, Infrastructure dept.
Groep Systemen                     Systems group
Universiteit Gent                  Ghent University
Krijgslaan 281, gebouw S9, 9000 Gent, Belgie               www.UGent.be
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