Re: [Bug-ddrescue] ddrescue 1.15 - ddrescue: write error: File too large [SOLVED]

[James Wilson]

Hi - the ext4 partition had large_file set, but not huge_file.

Changed with tune2fs; all working!

#  umount /dev/sdc1
#  tune2fs -O ^large_file huge_file /dev/sdc1

Thanks for your time,

James

On 2 Apr 2012, at 15:20, James Wilson wrote:

> Hi,
> 
> I'm using and RPM of ddrescue obtained from:
> 
> http://www.cert.org/forensics/tools/centos/cert/6.2/x86_64/ddrescue-1.15-1.el6.x86_64.rpm
> http://pkgs.repoforge.org/ddrescue/ddrescue-1.15-1.el6.rf.x86_64.rpm
> 
> This is on CentOS 6.2, 2.6.32-220.7.1.el6.x86_64
> 
> I have a 3TB Western Digital SATA drive, directly connected, recovering to an 
> image.  The image is being written to a 8.2TB ext4 partition.  The disk is 
> from a WD USB enclosure, that is also failing, hence the direct connection.  
> The WD enclosures encrypt the disk by default, hence the raw recovery.  On 
> reaching a recovery image size of 2TB, ddrescue fails:
> 
> # ddrescue -B -v -n -T --block-size=4KiB /dev/sda ./sda.dd 
> ./ddrescue_logfile_LOCAL.log
> 
> GNU ddrescue 1.15
> About to copy 2793 GiBytes from /dev/sda to ./sda.dd
>    Starting positions: infile = 0 B,  outfile = 0 B
>    Copy block size: 16 sectors
> Sector size: 4096 Bytes
> Max retries: 0    
> Direct: no    Sparse: no    Split: no    Truncate: no
> 
> Press Ctrl-C to interrupt
> Initial status (read from logfile)
> rescued:    1688 GiB,  errsize: 69052 KiB,  errors:   17263
> Current status
> rescued:    1688 GiB,  errsize: 69052 KiB,  current rate:        0 B/s
>   ipos:    2047 GiB,   errors:   17263,    average rate:        0 B/s
>   opos:    2047 GiB,     time from last successful read:       1 s
> Copying non-tried blocks...
> ddrescue: write error: File too large
> 
> The ext4 filesystem has the "large_file" option enabled.  The actual size of 
> the image on failure:
> 
> 1.7T -rw-r--r--  1 root  root  2.0T Apr  2 12:37 sda.dd
> 
> -rw-r--r-- 1 root root 2199023251456 Apr  2 12:37 sda.dd
> 
> Is this a limitation of ddrescue? Any assistance would be appreciated.
> 
> Kind regards,
> 
> James
> 
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