FreeBSD does not boot up after connected HDD via USB adaptor

[covacat]

looks like the start offset of the 'a' partition is indeed bad
id try to move it at offset 0 and add 16 to size
you can do this with disklabel -e ada0s1
and set the data for 'a' partition the same with 'c' partition (excluding the fstype) (change only offset and size)
then save and reboot

 

[GiorgioStephan34]

covacat I don't know how to thank you! Everything works perfect after changing size and offset like in C partition.
You are my hero! Thank you so much!

 

[VladiBG]

So lesson learned, don't mount UFS2 under OpenBSD FFS. I reproduce your situation and then the fix was to run fsck_ufs on da0s1a and fix the bootcode with gpart.

 

[GiorgioStephan34]

covacat Referring to the thread problem, I would like to protect myself against a similar situation.
I bought brand new SSD disk and make FreeBSD clean instalation with everything I need on that host.
The old one hard drive i would use as backup disk.

Is there any chance to make a identical copy (clone) of new SSD to HDD that i can only swap when something
goes wrong?
I know that dd copy zero data sectors, is there anything better but simple as that?

My actual setup:

 ~  gpart show
=>        40  1953525088  ada0  GPT  (932G)
          40        2008        - free -  (1.0M)
        2048  1953523080     1  freebsd-ufs  (932G)

=>        40  2000409184  ada1  GPT  (954G)
          40        1024     1  freebsd-boot  (512K)
        1064         984        - free -  (492K)
        2048  2000407176     2  freebsd-ufs  (954G)

ada0 - my old hard drive
ada1 - new solid state drive (live system)

--- edit ---
I've tested dump and restore builtin functions and it's amazing!
Thanks authors for a great tools!