William Estrada wrote:
Is there a way to determine which device I have booted from? For
example, say I booted from a USB device, can I tell which one? I did
not find anything in /proc FS other than the cmdline options.
If you choose the (experimental) CONFIG_EDD option in your kernel then,
with cooperation of your BIOS, you'll have a /sys/firmware/edd with at
least some info about the BIOS boot device. For me:
/sys/firmware/edd/
`-- int13_dev80
|-- extensions
|-- info_flags
|-- legacy_max_cylinder
|-- legacy_max_head
|-- legacy_sectors_per_track
|-- mbr_signature
|-- raw_data
|-- sectors
`-- version
I do not appear to have enough information there to be able to translate
back to the linux device but drivers/firmware/edd.c seems to imply there
might be for others. As far as I'm aware, it's the best that's available
at least.
Rene.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
