On 11/27/25 1:31 PM, Samuel Sieb wrote:
On 11/27/25 12:02 PM, home user via users wrote:
On 11/26/25 3:11 PM, Samuel Sieb wrote:
On 11/24/25 5:48 PM, home user via users wrote:
On 11/21/25 10:13 AM, home user via users wrote:
[snip]
root:~# ddrescue -f -n /dev/sr0 bluray.img ddrescue1124.log
If ddrescue worked, mounting should work since there are no errors.
What happens if you try to mount "/dev/sr0"?
I thought that the operating system did (or attempted) that as soon as
I put the media in. Since the file browser was not showing the disc,
I thought the mount attempt failed. The older back-up disc was auto-
mounted when I put it in; I copied that to the hard drive easily.
I do not have anything near the knowledge of devices, file systems,
and so on as other members of this list. I know a mount command
starts with "mount" and (in this case) needed "dev/sr0" somewhere in
the command line. But the man page is too long and too technical for
me. I could not figure out the details of what the command should
be. I did not figure out the ddrescue myself. Someone gave me that
to me off-line in early June or late May.
To try the mount from the command line, I need the full command line
to try.
mount /dev/sr0 /mnt
If that fails, it might need a filesystem type specified as well.
This is all on the old desktop.
3 days ago, when I succeeded in reading the older back-up off the
blu-ray, it took a few rounds of insert and eject before it succeeded.
Multiple tries on the newer back-up (the ddrescue'd one) never did succeed.
The first 2 tries by the OS and using your mount command failed as
before. The Disks GUI shows a disc is in the device, and it thinks
there's 2K on it. The third try,
surprise
showed 25 GB of data on the disk. I launched the file browser. I
showed the disc; I was able to look inside.
I used "cp -r" to copy the blu-ray's data to the hard drive. I don't
know how good the blu-ray data is, if the cp really worked, or how good
the data on the hard drive is until I get a diff run that I trust. I
did a diff, but it took a mere 37 seconds to compare 6.7 GB of data. I
don't trust that!
--
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