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Re: [rhelv6-list] kickstarting rhel6 from usb key



Hi Ges,

Thanks for your reply.
Does this mean that kickstarting from a USB key is just not reliable?
You have to be able to specify a device during kickstart, and if you don't know what the device that represents the hard disk will be, then what do you? I could "calculate" it on the fly, and modify the kickstart process accordingly, but if there are multiple disks in the system, and I want to be able to specify which of those devices will be used for kickstart, then this messes things up .. Once a system is kickstarted, you can use labels, etc. to identify disks, but assuming you're starting with a totally blank hard disk, who knows what device the kernel will see..

I remember this was an issue years and years ago .. can't believe we haven't found a better way to handle this under Linux yet...

sigh..

Jason.


Grzegorz Witkowski wrote:
Hi,

/dev/... devices may not be persistent between reboots.
It is not a bug. The kernel usually just assigns unpredictable device
names based on the order of discovery. See udev related info.

Regards,
Ges

On Wed, 2011-06-15 at 15:44 -0400, Jason Keltz wrote:
Hi.

I'm kickstarting a new Red Hat 6.0 system from a USB key.
I've kickstarted it many times from the key in the last week, and the USB key is recognized as sdb, and the system hard disk as sda. However, this morning, I went to kickstart, and the USB key was suddenly being recognized as sda which, of course messed up the process.
I tried it various times, and it continued to be that way.
I then had to leave it for a while because I was busy with other stuff.
When I came back, the hard disk is now being recognized as sda, usb key as sdb.
What's up?  seems like an odd bug...

Jason.

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