[rhelv6-list] kickstarting rhel6 from usb key
Jason Keltz
jas at cse.yorku.ca
Thu Jun 16 14:37:46 UTC 2011
Hi Gianluca,
This at least gives me an idea that I can use with respect to checking
in pre whether the device that is going to be kickstarted is removable.
I could at least pop up a warning box so that I don't have to check
manually each time!
Jason.
Gianluca Cecchi wrote:
> I don't know if it can be a starting point to find correct strategy,
> but for example (tested on Fedora 14 but should be similar in recent
> rh el distro):
>
> sda = hard disk
> sdb = usb key that is inside at this moment
>
> [root at tekkaman block]# pwd
> /sys/class/block
>
> [root at tekkaman block]# ls sda
> alignment_offset discard_alignment queue sda2 size uevent
> bdi ext_range range sda3 slaves
> capability holders removable sda4 stat
> dev inflight ro sda5 subsystem
> device power sda1 sda6 trace
>
>
> [root at tekkaman block]# ls sdb
> alignment_offset device inflight removable slaves uevent
> bdi discard_alignment power ro stat
> capability ext_range queue sdb1 subsystem
> dev holders range size trace
>
>
> [root at tekkaman block]# cat sda/removable
> 0
>
> [root at tekkaman block]# cat sdb/removable
> 1
>
>
> I don't know if you have an hot plug disk if the "removable" special
> file can contain 1 also for hard disks, but I don't think so
> I remember to have used this content to differentiate sda or sdb for
> install, because I had to install on HP and Dell servers.
> In HP there is /dev/cciss/c0d0
> in Dell tipically /dev/sda
> and I put my kickstart on usb key / floppy that actually were mapped
> to an image used by iLO/Drac.
> If I find those kickstart I could share.
> In the mean time you can try...
>
> I used that information in the pre section
>
> Or eventually you can check other flags inside the directories...
>
> HIH,
> Gianluca
>
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