On 11/24/25 5:48 PM, home user via users wrote:
On 11/21/25 10:13 AM, home user via users wrote:
(F-42 Workstation; gnome)
This past spring, I backed-up some 15-20 GB to an MDISC blu-ray. Now
I need to recover that data.
The optical device is blu-ray. It (supposedly) handles MDISC. It
connects to the desktop via 2 USB ports.
- I tried recovering the data logged in as a regular user, as the
admin, and as root.
- I tried the file browser, Brasero, Gnome CD Master, and K3b. They
either don't see the device, or they see it but don't know there's a
disc in it. Gnome CD Master shows the device's status as "Busy".
- I tried plugging in the device after logging in; I tried plugging it
in before powering up the desktop.
Nothing works.
The "Disks" utility does see the optical drive.
I get no real error messages.
I spent time in the "mount" man page, but could not make sense of it.
I've spent hours on this. How do I recover the back-ups from the blu-
ray disc?
I appreciate everyone's posts so far. I've not been replying because
I've been swamped recently trying to get yahoo e-mail working in
Thunderbird on the new desktop, and with a lot of non-computer work.
By far, my priority in this thread is recovering what's on the back-up
blu-ray that I made on the old desktop in early April. As I reported in
an earlier post, one blu-ray drive on the old desktop was able to read
an older blu-ray back-up, so I thought I'd try reading the April back-up
in that drive. I'm not an IT professional. I examined the dd man page,
and found it too much for me. But I had some notes from a successful
use of ddrescue on a bad USB stick this past June. So, on the old
desktop, I tried ddrescue on the April back-up. It took several tries,
but it finally worked...
- - - - - - - - - - - - - - -
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"?
--
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