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Why the lvm module didn't work for me...
From: |
Thomas Schwinge |
Subject: |
Why the lvm module didn't work for me... |
Date: |
Thu, 26 Oct 2006 01:11:30 +0200 |
User-agent: |
Mutt/1.5.6+20040907i |
Hello!
On the first encounter this is just too funny: Jeroen's lvm module didn't
work for me... Because I didn't have a floppy in my floppy drive. Ha!
:-)
Trace:
`insmod (hd0,1)/grub2/lvm.mod'.
disk/lvm.c
#v+
GRUB_MOD_INIT(lvm)
{
grub_device_iterate (&grub_lvm_scan_device);
grub_disk_dev_register (&grub_lvm_dev);
}
#v-
First relevant action of grub_device_iterate: call grub_lvm_scan_device
with ``fd0''. The floppy driver clatters, but there's no disk in, so the
grub_disk_read in grub_lvm_scan_device will fail, fall through to `fail'
and return.
As it got a bit late now and I don't find the (perhaps) obvious, I'll
have to stop here for now. The short story is that things then somehow
go wrong so that further devices (``hd0'', etc.) will not be probed for
lvm signatures and thusly no lvm devices are ever detected. More
tomorrow.
Regards,
Thomas
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