Jeremy asked me privately if the 2.6 kernel EDD disksig code works for anything other than the first BIOS int13_dev80 device. Right now it doesn't, it's limited to retrieving only the MBR signature for dev80. But a quick look at linux/Documentation/i386/zero-page.txt shows that there's space available to store disk signatures for as many disks as we want. So, the question becomes: how many does it make sense to try to read? I can picture an install scenario where we would want to install LVM/RAID across all available BIOS disks (2 for RAID1, 3 for RAID5, more?), and would want to use the mbr_signature mechanism to determine which BIOS disks correspond to which Linux disks. Yes? If so, I'll look into storing more signatures. Currently EDD allows up to 6 devices, but that's because the EDD 3.0 data chunk is so large and space is limited in the zero-block. We could conceiveably store more mbr_signatures (they're only 4 bytes each) than 6, if it would be useful to do so. Thoughts? Thanks, Matt -- Matt Domsch Sr. Software Engineer, Lead Engineer Dell Linux Solutions linux.dell.com & www.dell.com/linux Linux on Dell mailing lists @ http://lists.us.dell.com
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