Den 2025-11-03 kl. 19:42, skrev Sulev-Madis Silber:
On November 3, 2025 7:32:59 PM GMT+02:00, Tomek CEDRO <[email protected]> wrote:
On Mon, Nov 3, 2025 at 6:06 PM Sulev-Madis Silber
<[email protected]> wrote:
(..)
the optical disks are most of cases readonly, they could retain data well,
could be pressed into permanent disk, would be allowed in high security
environments where usb would be not maybe
i miss the optical use cases here, anyone give me insight?
1. read only / immutable.
2. no moving parts = immune to mechanical malfunction like hdd.
3. no electronics parts = immune to esd / emp like ssd.
4. long life time far exceeding hdd/ssd (i.e. hard coat, or mdisk).
5. small and light.
in installer context or all storage? i do hdd/flash here and i have written
some cd-r's. one rw. of course all are pretty much correct, or fully, depending
anyway it was about installer. i don't know if somebody wants to burn like bd-r
for install
so how many isos is practical?
and i wonder if larger usb stick owners could take dvd dl or some blu
or we still need separate usbs? with usb there is no standard size. with 64g,
avg size, you could iirc fit a quite a de's there and their deps
i wonder if image maker is solution. has own issues. how to verify it
whatever
The cost for BD Media and BD drives are not noticably higher than
cost for DVD-DL media and drives.
The risk that a User needs to re-invest in a New BLuray writer drive
is significant, while the risk that
your present drive cant write DVD-DL format is exeedingly small as it
needs to be older than 15 years for that to occur.
I did not try writing BD media on Freebsd. I can test it if needed. I have
never used UDF format AFAIR.
To stipulate use of DVD-DL media to get rid of the 4.7 GB
limitation is presently very low risk and has no economic
impact for the end user. ( I have used DVD-DL for 15-ALPHA & 15-BETA
isos.) Joerg Shilly's CDrecord / K3B can write DVD-DL.
To stipulate BluRay BD media has possible hardware replacment issues
and UDF format risks.
Regards
-
-------------------------
Lars Tunkrans
Oracle SPARC/Solaris System Administrator
Fujitsu M12 SPARC Specilaist
