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Re: Forcing a disk rescan after %pre

Dag Wieers wrote:

We are integrating some pre-install scripts. One of the things we have now is that in the %pre phase the HW RAID controller is tested for "Virtual disks" and if none are found it will create a RAID config depending on the number of disks found.

The problem is that even when we created the RAID, restarted the RAID driver and created the device node (fdisk -l shows the new disk). Anaconda does not know about the new disk, likely because the scan for disks happened before.

I found a file /tmp/scsidisks and also rewrite that file, but still Anaconda does not update its view of the system after the %pre.

Does someone know how we can make Anaconda understand that we created a disk in the %pre ?

I'm a little puzzled. Years ago (RHL 7.x I think) I used to initialise disks in %pre with various incantations of dd and fdisk (one can pipe commands into fdisk). That worked fine, and I'm pretty sure I created new partitions. fdisk forces partition tables to be reread.

Of course, it's possible anaconda has been broken since then:-)



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