Re: [Bug-ddrescue] partition size for ddrescue direct to device

[peter]

hello ariel-

thanks so much for the info. the partition type is apple HFS and the filesystem
is "mac os extended (journaled)"

i do have another firewire 800 drive ready to go so i can just parititon it
smaller and copy the data straight off the current target. can you tell me some
commands to do this or a place to look? i have searched google ...

at this point ddrescue has slowed to a crawl and pulls mostly junk... it should
be done any time now, the drive was 80gb and its at 76-something

thanks again
peter

About to copy an undefined number of Bytes from /dev/disk0s3 to /dev/disk2s12
    Starting positions: infile = 0 B,  outfile = 0 B
    Copy block size: 128 hard blocks
Hard block size: 512 bytes
Max_retries: 0    Split: yes    Truncate: no

Press Ctrl-C to interrupt
Initial status (read from logfile)
rescued:         0 B,  errsize:       0 B,  errors:       0
Current status
rescued:    76029 MB,  errsize:  31954 kB,  current rate:        6 B/s
   ipos:    76061 MB,   errors:     491,    average rate:    1510 kB/s
   opos:    76061 MB
Copying data...


Quoting Ariel <address@hidden>:

>
> On Fri, 23 Sep 2005, Peter wrote:
>
> > is this going to produce an unusable volume because the target is not the
> > same size as the source? i have not stopped the progress and tried to mount
> > it yet.
>
> If the volume is ext then you'll have no problem. ext stores the actual
> size of the fs in the superblock. (Although if the superblock is messed up
> bad things can happen - but in that case you'll have worse problems. And
> you might be able to use a backup superblock.)
>
> If it's other filesystems, then they might not mount, but the data is not
> useless - it's just at the beginning of the volume that's all.
>
> Just figure out the size of the old volume, and copy that much data from
> the new volume once ddrescue is done. You might even have some success
> _CAREFULLY_ changing the partition table to shrink the partition slightly
> to match. (But that's a risky thing to do.)
>
> Use blockdev to get the size of the old volume.
>
>       -Ariel
>
>