Recent Posts

71

TCB Talk / Re: What maxim Kernel version for what hardware

« Last post by Rich on April 18, 2026, 08:41:39 PM »

Hi nick65go
Your typos have been corrected.

72

TCB Talk / Re: Tiny Core v17.0 upgrade issues

« Last post by Stefann on April 18, 2026, 04:49:19 PM »

Bang,
Crash after about 4 hours.
It’s late now, I will look further tomorrow.
Quick conclusion.
It’s not the Linux kernel.
It’s a weak spot in my application that gets exposed by the new gcc
Unfortunately zero logging from rsyslog. Logging was active but did not give any output.

What probably happened during the tc15 > tc17 upgrade:
- upgraded tc15 to tc17 > all ok, ssh, samba, vnc, Apache all functional.
- ran application > also ok
Than…
As I was working on the system and seemed fine..
Did some changes to the code and did a recompile.
>> software still running. No suspicion

17 hour later crash > forgot about the recompile, blamed tc17.

At this moment this is my theory. Tomorrow I will see how to proceed.

73

TCB Talk / Re: What maxim Kernel version for what hardware

« Last post by nick65go on April 18, 2026, 03:51:43 PM »

I kindly ask admin of this forum to correct a typo / mistake in my post 1 and 2:
USB 2.0 has maxim transfer speed 480 Mbit/s (and real data transfer 58 MB/s); not 40 Mbit/s, sorry.

mocore: Thank you, you stimulated me to check again my numbers.
But the conclusions remain the same about CD / DVD devices + USB interface.

74

TCB Talk / Re: What maxim Kernel version for what hardware

« Last post by nick65go on April 18, 2026, 03:10:48 PM »

1.thanks for taking the time to share "your" research on this topic

2. what effect is expected if (apparent) minimum version "required" is not met ?

3. my only experience with usb failing to meet my expectations
has been slow loading when booting (afair grub2) with (i assume ) usb3 capable devices storage devices on usb capable pc hw

1. A.I.+ google were using as a starting point, but then Wikipedia was my friend for USB speed limits
https://en.wikipedia.org/wiki/USB

2. "required" means that kernel staring to implement the specification; but later bugs discovered + fixed; then later no more (major) improvements. you are welcome to do your proper research and to invalidate my list, in a constructive way.

3. Please do not (always) trust what big device manufacture take pride to lie to you advertise. They bet that you as a common consumer will not dare to go in court with them because  a so small issue.

75

TCB Talk / Re: What maxim Kernel version for what hardware

« Last post by nick65go on April 18, 2026, 02:30:23 PM »

FYI: my previous post (for CD, DVD, PATA) was "worked" (aka shame-less copy+paste 100% + polish layout) 
using just Wikipedia, without A.I., so for the skeptics ones here are the links:
https://en.wikipedia.org/wiki/Parallel_ATA 
https://en.wikipedia.org/wiki/CD-ROM
https://en.wikipedia.org/wiki/DVD
The purpose was to refresh the (human) memory for interconnections of booting storage + interfaces + (not necessary the TC) kernel features.

76

Off-Topic - Tiny Core Lounge / Re: SDL Adds Policy To Forbid LLM Generated Code Contributions

« Last post by mocore on April 18, 2026, 02:12:40 PM »

https://www.phoronix.com/forums/node/1627247

^^ SDL Adds Policy To Forbid LLM Generated Code Contributions

almost interesting to read some of the more informed comments

fwiw / imho  some similar themes to those are mentioned in the below link

perhaps a-bit in parallel to this topic  ,
...  https://lists.gnu.org/archive/html/help-guix/2026-04/msg00047.html

though some of the enthusiasm in the 'SDL Adds Policy' strikes me  as a little odd
like ppl with a sugar rush who have been advised by doctor/dentist to cut down on sugar
arguing enthusiastically about which brand of tooth paste is going to solve *all* their problems
  so they can ignore any and all advice / to prove "them" wrong

vibe commenting if you like

gives me a kind of bill hicks vibe tbh
`Here is the commercial they’d like to do, I guarantee you. ....
And it just says: “Drink Coke.” Now, I don’t know the connection here, but coke is on my shopping list this week.`

77

TCB Talk / Re: What maxim Kernel version for what hardware

« Last post by nick65go on April 18, 2026, 01:38:54 PM »

To be "truly" nomadic, the linux should boot from external medium, lets say (but not limited to) from  CDROM /DVDROM, USB-stick, HDD-external, PXE + network). Plus at destination to have the appropriate interfaces to boot that storage (PATA/SATA/SCSI/Firewire/USB).

In this post I limit (myself) to physical CD / DVD connected by PATA or USB. For USB theoretical maxim speed I wrote previously.
I try to "demonstrate" that a bus like ATA/33 (33 MB/s) is enough for a CD or DVD, because the limited maxim theoretical speed for CD or DVD.

PATA (Parallel Advanced Technology Attachment) interfaces, commonly known as IDE (Integrated Drive Electronics):
Common Standards: ATA/33, ATA/66, ATA/100, and ATA/133. Speed range from 33 MB/s up to 133 MB/s
PS: Significantly slower than SATA, which ranges [150 - 969] MB/s 

Extra info for SATA (Serial Advanced Technology Attachment)
SATA I (1.5 Gbps): 150 MB/s maximum theoretical speed
SATA II (3 Gbps): 300 MB/s maximum theoretical speed.
SATA III (6 Gbps): 600 MB/s maximum theoretical speed.     (Typical SSDs operate around 500–550 MB/s.)

CD-ROM (compact disc read-only memory)
    KB/s                Mbit/s          MB/s   RPM (at edge) Equivalent
1×  150                 1.2288             0.146    200–530
2×  300                 2.4576             0.293    400–1,060
4×  600                 4.9152             0.586    800–2,120
8×  1,200               9.8304             1.17   1,600–4,240
10× 1,500              12.2880             1.46   2,000–5,300   UBS 1.0/1.1 (12 Mbit/s)
12× 1,800              14.7456             1.76   2,400–6,360
20× 1,200–3,000      < 24.5760          <  2.93   4,000 (CAV)
24× 1,440–3,600      < 29.4910          <  3.51   4,800 (CAV)
32× 1,920–4,800      < 39.3216          <  4.69   6,400 (CAV)   USB 2.0 (480 Mbit/s)
36× 2,160–5,400      < 44.2368          <  5.27   7,200 (CAV)
40× 2,400–6,000      < 49.1520         <  5.86   8,000 (CAV)
48× 2,880–7,200      < 58.9824          <  7.03   9,600 (CAV)
52× 3,120–7,800      < 63.8976          <  7.62  10,400 (CAV) ...undesirable noise (disk vibration, rushing air, spindle motor)
56× 3,360–8,400      < 68.8128          <  8.20  11,200 (CAV)
72× 6,750–10,800     < 88.4736          < 10.50  2,700 (multi-beam) << far from USB 3.0 (5 Gbit/s)!! 


DVD (Digital video/Versatile Disk)
      Mbit/s   MB/s    RPM (constant linear velocity)   Equivalent-CDROM            Equvialent-USB
1×    11       1.38    1400 (inner) 580 (outer)         cdrom-10x (max. 1.46 MB/s)  USB 1.0/1.1 (12 Mbit/s)
2×    22       2.8     2800 (inner) 1160 (outer)        cdrom-20x (max. 2.93 MB/s)
2.4×  27       3.3     3360 (inner) 1392 (outer)       
2.6×  29       3.6     3640 (inner) 1508 (outer)        cdrom-24x (max. 3.51 MB/s)
3×    33       4.1     4200 (inner) 2320 (outer)
4×    44       5.5     5600 (inner) 2900 (outer)        cdrom-36x (max. 5.27 MB/s)  USB 2.0 (480 Mbit/s) !!
6×    67       8.3     8400 (inner) 3480 (outer)
8×    89      11.1     4640 (CAV; no longer uses CLV)   cdrom-72x (max.10 MB/s)
10×  111      13.9     5800
12×  133      16.6     6960
16×  177      22.2     9280                             limit reading speed to 16× (constant angular velocity)
18×  199      24.9    10440
20×  222      27.7    11600
22×  244      30.5    12760
24×  266      33.2    13920                             PATA/33 (33 MB/s)

extra (unsolicited) info:
CD-ROM (compact disc read-only memory), in Mode1 format: raw sector =2,352 bytes (16 bytes header + 2,048 bytes DATA +288 bytes CRC).
- "1× speed CD". =  153.6 kB/s (150 KiB/s). Size CDROM = 650 MB
- "1× speed DVD" = 1,385 kB/s (1,353 KiB/s); Size DVD=4.7GB =aprox. 6x CDROM.
If the disc spins at a constant angular velocity (CAV), the linear velocity is 2.4 times higher at the outer edge.

(temporary) Summary:
- max. CD-72x (ha, ha, very few) is equivalent speed to a DVD-8x suitable for PATA/33 , or USB 3.0
- CD-36x is equivalent speed to a DVD-4x suitable for PATA/33, or UBS 3.0 (practicaly USB 2.0, YMMV) 
- max. CD-32x is suitable for PATA/33, or USB 2.0A max. CD-10x is equivalent speed to a DVD-1x suitable for PATA/33, or USB 1.1

    [Edit]: Corrected typo. Changed  40 Mbit/s  to  480 Mbit/s, two places.  Rich

78

Off-Topic - Tiny Core Lounge / Re: in the age of artificial intelligence, non-digital archives to become priceless

« Last post by mocore on April 18, 2026, 01:29:55 PM »

My assumption was that smaller software has less "attack" surface, therefore more secure when carefully crafted.

i have to admit i found my way to tcl making similar assumptions

in my case it was less about "attack" surface and more about

likelihood i could make reasonably accurate assumptions  about "system function"
... in the rather idealist hope of avoiding **`function failure` ( though activeX(ploit) did play a large part in that fwiw )

 ** which was the main reason i have any cause to involve my self in this world of digital torment     

 perusing the minimal functionality principle in to the domain of programing langues
 lead me to lisp , and associated academic CS en-devours
 
 & while pulling theoretic strings of set theory  and abit of  FP
 finally landed on unfortunate conclusions of kurt's https://en.wikipedia.org/wiki/G%C3%B6del%27s_completeness_theorem

*irrelevant tangent*
https://www.youtube.com/watch?v=THCj2AJuNVE (4 Hero - Mr Kirk's Nightmare)

and found out what happens when you combine
cats and curiosity
 :'(

all of this oddly makes me recall a quote from garry oldman in leon
"I haven't got time for this Mickey Mouse bullshit!"
 

amongst *all this* increasing maddening complexity
 the core philosophy still shines though
 from the perspective of user script-ability / modify-ability  !

79

Off-Topic - Tiny Core Lounge / Re: My experimental AI testing attempt was successful :)

« Last post by mocore on April 18, 2026, 12:38:57 PM »

Don't you read the news?

can you explain why ...you think that ?

im sorry to say im struggling to find any connection

between
what i read
and
what you think

 

80

TCB Talk / Re: What maxim Kernel version for what hardware

« Last post by mocore on April 18, 2026, 12:35:27 PM »

thanks for taking the time to share "your" research on this topic

>So for USB N.x sockets, a kernel N.x   is enough

wrt :"is enough" assumption

what effect is expected if (apparent) minimum version "required" is not met ?

..any one with hw / time to test the above assertions ?
( i see slow speeds are noted , that presumably results from falling back to older more tested usb 2/1 )

or links or search terms to find reference to any of the presumably many relevant bugs ....

ftr / afair
my only experience with usb failing to meet my expectations
has been slow loading when booting (afair grub2) with (i assume ) usb3 capable devices storage devices on usb capable pc hw

it was unclear to me weather or not! ...the exact cause was hw-config or sw-config or some combination of both !!

my understanding of this boot time pre-linux  is limited
but i have found mention from other ppl booting other OS's 
about encountering these apparent muddy waters

though its an area that i imagine few will stray far enough from the beaten path to encounter
let alone find time to care to file/fix bugs that might lurk in the brief pre-os domain of such setup's