I am new to linux (my windows system drive died and I can't reinstall windows, so trying a ubuntu live usb)
I am trying to clear a drive so I can install ubuntu properly, so I have copied a directory full off stuff to back up from the drive to another drive, now all I want to do is verify this copy has worked (by reading both copies and making sure they match byte for byte - don't care about metadata)
As I'm running off a live usb, I want as little setup as possible,
I have tried the top answer here: https://stackoverflow.com/questions/1657232/how-can-i-calculate-an-md5-checksum-of-a-directory
And it does not work, for some reason the scan (and du for that matter) just skips a bunch of files in one of the copies (both drives are NTFS btw)
I can't get diffmerge to install, I tried installing meld and that just hung (its 57 gig of data)
Either a direct compare of data, or something that will checksum a directory (file contents, but not meta data) like the sha tools that come with 7zip on windows is fine.