I have a large collection of files (87.3 GB and 80054 objects) which I am copying from drive to drive. To make sure everything went well, I have made a checksum file to check with md5sum -c checksums.txt
. Every time I try this, suddenly lightdm crashes (at least that's what I think is happening), and I am presented with the login screen. My session is gone.
What might cause this?
Does md5sum
has a limit to how large checksum files or number of files it can handle? (Limited by system specs?)
Info:
checksums.txt
is 7.6 MB and has 79281 lines.
The destination drive is an external NTFS formatted one.
I run Ubuntu 12.04