drive image dd booting backup question
trader at terray.com
Wed Mar 26 03:56:16 PST 2003
I have two identical (model/size/etc.) hard drives
in a computer, both of which are recognized by the
PC's BIOS, both of which are listed in dmesg as ad0
and ad1, respectively, and both of which appear as
/dev/ad0 and /dev/ad1. One is master, one is slave.
The slave (ad1) is never mounted.
My goal was to install FreeBSD and set up apps
for a user on the 'master' drive (ad0), then 'image'
the drive over to ad1 (to produce backup media for
the project) using the following command:
dd if=/dev/ad0 of=/dev/ad1 bs=512
So far, so good, everything works great. dd
reports that everything went smoothly. Then I
attempt to boot off the that slave drive, after
performing the following steps to make what was
once ad1 is now the primary ad0 drive:
* disengaged the drive data cable from ad0
* set ad1's jumper to a single drive
* changed the bios to recognize only one drive
When I try to boot off what was once the slave
drive (ad1), however, I get errors that /boot/loader
and /kernel can't be found.
>> FreeBSD/i386 BOOT
Does anybody have any thoughts on what I might
have missed? Google and newsgroup searches have
not produced an answer that's helpful. Of course,
I hope I haven't committed some remedial error and
wasted your time with this post.
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