-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 11/04/2011 09:43 PM, Tejun Heo wrote: > Yes, it would break under windows and it does. Get a motherboard > which always locks HPA, do hotplug, create filesystem filling the > full disk and reboot. BIOS doesn't have a reliable way of > determining whether the disk is "unformatted" or not. Some try to > scan dos partition table but filesystem may be created on the whole > device or software raid could be using the whole drive. There is no > reliable way to tell. Some BIOSen may try to do HPA locking after > hotplug using ACPI _GTF which in theory can work but in practice > many motherboards either don't implement them or are horridly > broken. So, yeah, it isn't too difficult to break whether the os is > windows or linux. Well if it breaks under Windows, then we can't be faulted for having the same results now can we? > The only argument against unlocking by default and providing both > sizes is that some BIOSen may act incorrectly after soft reset, > which seems acceptable provided there's an override to disable the > automatic unlocking. The other argument is that unlocking by default trashes whatever data the bios was trying to hide in the HPA, and deviates from the behavior of Windows. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk60nt0ACgkQJ4UciIs+XuIdkACfVPbcO/Tl0bJ2g/wEb2HQ6Gpl 0u4AoL67GnVVZZgW98tGElJtYpNENXaU =bxzR -----END PGP SIGNATURE----- -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
