Accessing UFS partitions from a Macbook
smithi at nimnet.asn.au
Thu Apr 20 14:09:21 UTC 2017
I plugged my backup USB HD into my daughter's Macbook, to see if it was
going to be able to access a particular set of files I want to give her.
root at x200:~ # gpart show -p da0
=> 63 625142385 da0 MBR (298G)
63 83875302 da0s1 fat32 [active] (40G)
83875365 272623050 da0s2 freebsd (130G)
356498415 268638930 da0s3 freebsd (128G)
625137345 5103 - free - (2.5M)
root at x200:~ # gpart show -p da0s2
=> 0 272623050 da0s2 BSD (130G)
0 8388608 da0s2a freebsd-ufs (4.0G)
8388608 8388608 da0s2b freebsd-swap (4.0G)
16777216 16777216 da0s2d freebsd-ufs (8.0G)
33554432 33554432 da0s2e freebsd-ufs (16G)
67108864 205514186 da0s2f freebsd-ufs (98G)
The files of interest are on da0s2f, about 50GiB.
The Mac auto-mounted the first (msdosfs) slice as /dev/disk2s1 and files
there were accessible. No sign of the other partitions, though.
In Terminal on the Mac, 'ls /dev/disk2*' showed the slices ok:
/dev/disk2 /dev/disk2s1 /dev/disk2s2 /dev/disk2s3
but attempts to e.g. 'mount -t ufs /dev/disk2s2a $herhomedir/mnt' - a
directory I'd made there - failed, indicating not a permission failure
(as more or less expected) but directory ./mnt not found?
So I tried logging in as root with su -l but her usual administration
password wasn't the one, and she knows nothing about a root password.
So two questions from someone with next to no Mac experience:
Should I expect UFS partitions within a slice to be accessible on Macs?
If not, might a UFS partition occupying the whole raw slice fare better?
How can she or I go about discovering the root password on her Macbook?
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