Re: Which device did I boot from?
- From: Andrey Borzenkov <arvidjaar@xxxxxxx>
- Date: Sat, 15 Apr 2006 14:30:40 +0400
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On Saturday 15 April 2006 13:43, Rene Herman wrote:
Andrey Borzenkov wrote:
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:
I am sorry but it does not tell about boot device. It contains all hard
disks enumerated via EDD interface. I do not see any information
under /sys/firmware/edd that would have allowed to guess boot device.
int13_dev80 is the bootdevice. Or that used to be the case with things
such as booting from SCSI at least. Don't know about booting from, say,
USB.
OK. In this case udev creates links based on MBR signature; it can be used to
infer real device:
{pts/0}% LC_ALL=C ll /dev/disk/by-id
lrwxrwxrwx 1 root root 9 Apr 12 21:36 edd-int13_dev80 -> ../../hda
lrwxrwxrwx 1 root root 10 Apr 12 21:36 edd-int13_dev80-part1 -> ../../hda1
lrwxrwxrwx 1 root root 10 Apr 12 21:36 edd-int13_dev80-part2 -> ../../hda2
Not sure about USB either.
- -andrey
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- Re: Which device did I boot from?
- From: Andrey Borzenkov
- Re: Which device did I boot from?
- From: Rene Herman
- Re: Which device did I boot from?
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