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| Interrupting updating process |
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Posted by: JanetBiggar - 04-05-2018, 04:00 AM - Forum: Installing Linux Lite
- No Replies
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Usually the updating of LL doesn't take more than 30 mins, however I had a computer that hadn't been updated since January that I updated yesterday. It took about 2 hours to download and install the updates.
I will be meeting some youth today who have other computers running LL 3.4 that they have been using since January so haven't been updated recently thus I wanted to check (in case their updating takes long):
1) At what point during the updating (downloading and installing) MIGHT I be able to stop the process and then resume it again? Almost all of these computer require to be plugged in as the batteries are dead.
2) IF I can't "properly" interrupt the process WHAT HAPPENS if it is interrupted/stopped? Will this play havoc with the OS/Computer and should I simply wait to update it when I know I have an uninterrupted period?
3) I thought there was a point between the downloading and installing where it asks "do you want to install these", however I didn't see it yesterday on the computer I updated. I did leave it on it's own for a bit and wondered if perhaps I missed this question and then it went on to install after a countdown...Does anyone recall if it asks?
Thanks.
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| UEFI and Linux Lite |
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Posted by: valtam - 04-05-2018, 01:43 AM - Forum: Introductions
- No Replies
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Is UEFI supported in Linux Lite? The short answer is no.
Why don't you support UEFI?
- It's an unnecessary technology. A replacement for a system that already performed a job. If BIOS was so bad, hardware vendors wouldn't still include it their devices. We follow the Unix Philosophy - "Write programs that do one thing and do it well." https://en.wikipedia.org/wiki/Unix_philosophy
- UEFI is insecure. It claims to protect the computer, but it can't. We could link to dozens of articles, but it's easier to simply Google 'UEFI security' to find out more and debunk this myth forever.
- UEFI is not without it's headaches and requires significantly more Support than BIOS does. I'm not prepared to put our community through more Support threads when it's completely unnecessary to do so.
- We have test builds but they are officially unsupported and there is no guarantee that any more will be created in the future - https://www.linuxliteos.com/forums/linux...uild-test/
- The layman does not understand the technology and all its caveats. Since we are an OS that targets computer novices and migrating Windows users, providing UEFI would contradict our mission.
- 'UEFI will make your OS more popular' - we're not interested in popularity, we're only interested in making the transition to a linux based operating system for people as simple and uncomplicated as possible. UEFI doesn't translate to a smoother install if you are unfamiliar with partitioning.
Will you ever support UEFI in Linux Lite?
Not if we can help it. It's been said that one day UEFI will completely replace BIOS. If that day comes we'll re-evaluate, but even then, there will still be millions of computers in existence that Linux Lite can be installed to. Linux Lite will still provide a valuable service for those people. "But, but, but, but I can use my mouse in the BIOS now thanks to UEFI..."
![[Image: PbR8djl.gif]](https://i.imgur.com/PbR8djl.gif)
In conclusion.
I want people to self-educate. Don't blindly accept a technology simply because it exists or is widely used, or because 'others' are using it. Ask questions. What is UEFI? How did it start? Who is behind it?
Knowledge is power. Use it.
![[Image: oKSOtOc.jpg]](https://i.imgur.com/oKSOtOc.jpg)
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| not being able to boot from ssd |
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Posted by: onnipoika - 04-03-2018, 07:36 PM - Forum: Installing Linux Lite
- Replies (2)
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I installed LL, but after the install should have been finished I restarted my computer and everything seemd normal. But after I had once shutdown and removed the usb I got LL from my laptop opened to the BIOS menu and the ssd I installed LL to was not detected.
When I am in the live version of LL it detects my laptops ssd as a sd card reader and when I look into it all the LL files are there, but I can't boot to it.
please, help!
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| Age old problem: No sound after install |
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Posted by: nebulous - 04-03-2018, 04:27 PM - Forum: Sound
- Replies (6)
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I needed a pc for a project and decided to resurrect an old laptop that has run flawlessly on ubuntu for over a decade. I had tied Linux Lite last year when helping a friend get an old laptop going again by rebuilding it upon Linux Lite. Worked like a charm. So I decided to put it on my old Laptop too. But this time around, my laptop seems to be too much of a challenge for Linux Lite. I'm guessing the age of the laptop is the real issue. I'm hoping for a lot when I try to get such an old (2005) laptop to run on an up-to-date OS. But I've been a linux user for about 10 years now (not an expert - just a user) and I like to think I can get linux to do anything! I've spent time in the past on dozens of pc's troubleshooting audio and video issues - seems to be something that you have to accept when using linux - but I usually resolve the problem within hours. Not this time.
I have spent about 3 days looking at everything there is about getting sound to work including this forum and many others. I have come to the conclusion that it's simply incompatible (but faintly hoping I am wrong). The reason I believe this is I rebooted with an old 12.04 Live CD (where the sound works perfectly) and noted the results of the following command line queries (among others but I found these to be the most revealing):
aplay -l
amixer -c0 scontents
amixer -c0 scontrols
and I only found one thing different: "amixer -c0 scontrols" yields a shorter list of controls in Linux Lite than in 12.04. Mostly 'Master Switch' controls are missing.
My sound card: "aplay -l yields"
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC880 Analog [ALC880 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC880 Digital [ALC880 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
Under Ubuntu 12.04 Live CD "amixer -c0 scontrols" yields
numid=26,iface=MIXER,name='Master Playback Switch'
numid=25,iface=MIXER,name='Master Playback Volume'
numid=4,iface=MIXER,name='Headphone Playback Switch'
numid=3,iface=MIXER,name='Headphone Playback Volume'
numid=27,iface=MIXER,name='PCM Playback Volume'
numid=2,iface=MIXER,name='Front Playback Switch'
numid=1,iface=MIXER,name='Front Playback Volume'
numid=6,iface=MIXER,name='CD Playback Switch'
numid=5,iface=MIXER,name='CD Playback Volume'
numid=8,iface=MIXER,name='Mic Playback Switch'
numid=7,iface=MIXER,name='Mic Playback Volume'
numid=9,iface=MIXER,name='Capture Switch'
numid=10,iface=MIXER,name='Capture Switch',index=1
numid=11,iface=MIXER,name='Capture Switch',index=2
numid=12,iface=MIXER,name='Capture Volume'
numid=13,iface=MIXER,name='Capture Volume',index=1
numid=14,iface=MIXER,name='Capture Volume',index=2
numid=22,iface=MIXER,name='IEC958 Default PCM Playback Switch'
numid=18,iface=MIXER,name='IEC958 Playback Con Mask'
numid=19,iface=MIXER,name='IEC958 Playback Pro Mask'
numid=20,iface=MIXER,name='IEC958 Playback Default'
numid=21,iface=MIXER,name='IEC958 Playback Switch'
numid=24,iface=MIXER,name='Beep Playback Switch'
numid=23,iface=MIXER,name='Beep Playback Volume'
numid=15,iface=MIXER,name='Input Source'
numid=16,iface=MIXER,name='Input Source',index=1
numid=17,iface=MIXER,name='Input Source',index=2
numid=26,iface=MIXER,name='Master Playback Switch'
But under Linux Lite "amixer -c0 scontrols" yields
Simple mixer control 'Master',0
Simple mixer control 'Headphone',0
Simple mixer control 'Speaker',0
Simple mixer control 'PCM',0
Simple mixer control 'Surround',0
Simple mixer control 'Center',0
Simple mixer control 'LFE',0
Simple mixer control 'Line',0
Simple mixer control 'Mic',0
Simple mixer control 'IEC958',0
Simple mixer control 'IEC958 Default PCM',0
Simple mixer control 'Beep',0
Simple mixer control 'Capture',0
Simple mixer control 'Capture',1
Simple mixer control 'Capture',2
Simple mixer control 'Channel Mode',0
Simple mixer control 'Input Source',0
Simple mixer control 'Input Source',1
Simple mixer control 'Input Source',2
Simple mixer control 'Loopback Mixing',0
Everything else I have looked at seems identically installed between the 12.04 Live CD and the Linux Lite I have installed.
"lsb_release -a" shows:
No LSB modules are available.
Distributor ID: Ubuntu
Description: Linux Lite 3.8
Release: 16.04
Codename: xenial
I should point out that when playing a sound from any source if I look at "pavucontrol" everything looks fine: i get choices of speakers or headphones as usual, it's using analog stereo output as usual and the volume meter is showing the sound playing (blue bar bouncing around as it should. The conclusion I draw from that is the final connection to the speakers or headphones is not being made correctly. It's not a muting issue (or at least I've unmuted everything there is to unmute). I think it's the driver is simply not compatible.
So anyway, I thought I'd post this to the forum (sorry if I have not adhered to your conventions but forum posting is new to me) and see if someone could suggest a way forward. I'd put another version on the laptop if I could identify a version that would work. Or is there something I'm missing - not inconceivable. It seems to me I've tried just about everything anyone has ever suggested to troubleshoot this issue in the past three days.
Thanks.
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| Laptop keyboard doesn't work |
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Posted by: Jonhyge - 04-03-2018, 04:09 AM - Forum: Security & Bug Fixes
- Replies (3)
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I am new to the Linux environment so tell me if I make any mistake:
Just today I installed Linux Lite on my netbook (Lenovo s10-3C) which has a keyboard with spanish layout, on the CS live the keyboard wasn't working (thought it could be some files missing that once fully installed could be easily fixed). Well, I was wrong, I had to use a USB keyboard (Gamdias HERMES) in order to set the password so I can use it, I've tried to change different layout but none seem to work, I've also seen many posts about having the numpad keys set to the JKL,IOP... keys but any keys work (at least for me). Is there any way to solve this?
PD: While in bootup in GRUB all keys do work but once inside the OS they stop working.
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| DNS settings............ |
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Posted by: stompy - 04-02-2018, 08:52 PM - Forum: Network
- Replies (5)
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has anyone heard about changing the DNS settings to get a bit more speed and security. Cloudflare says that changing the DNS to 1.1.1.1 will acheive this. any thoughts or has anyone done this? supposedly you can do this to the router and computter.
link to their site...... https://1.1.1.1/
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| Using Linux has inspired me to learn C and here's my MORSE program |
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Posted by: alowe - 04-02-2018, 05:31 PM - Forum: Coding
- Replies (3)
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Something about using Linux encourages me to learn C. So I wrote a simple program to output morse code.
I wanted it to play the morse a bit faster but if I reduce the sample lengths any further they fail to play at all. So this looks like it's as far as it will go. Never intended for it to be practical. Just wanted to try something.
I'm not sure if attaching Linux executables is safe or advisable (it isn't on Windows systems). Incase it doesn't work or you want to compile it yourself, here is the code:
Code: // Compilation:
// gcc -o morse morse.c -lao -ldl -lm
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <ao/ao.h>
#include <math.h>
#define bool char
#define true 1
#define false 0
#define dot 25200 // length of dot sound
#define dash 44100 // length of dash sound
#define delay 200000 // delay in microseconds between dots and dashes in morse code
const char* morse[] = {
".-", // A
"-...", // B
"-.-.", // C
"-..", // D
".", // E
"..-.", // F
"--.", // G
"....", // H
"..", // I
".---", // J
"-.-", // K
".-..", // L
"--", // M
"-.", // N
"---", // O
".--.", // P
"--.-", // Q
".-.", // R
"...", // S
"-", // T
"..-", // U
"...-", // V
".--", // W
"-..-", // X
"-.--", // Y
"--..", // Z
"-----", // 0
".----", // 1
"..---", // 2
"...--", // 3
"....-", // 4
".....", // 5
"-....", // 6
"--...", // 7
"---..", // 8
"----." // 9
};
void dotdash(char* code, ao_device* device, char* buffer, char audio, char reveal, char suppress)
{
// exit early if there's nothing to do
if (!audio && suppress) return;
// play dot and dash sounds for each dot and dash in code
for (int i=0; i < strlen(code); i++) {
if (audio) {
switch (code[i]) {
case '.': ao_play(device, buffer, dot); break;
case '-': ao_play(device, buffer, dash); break;
// ignore other characters
}
}
if (reveal && !suppress) {
printf("%c", code[i]);
fflush(stdout);
}
usleep(delay);
}
if (reveal && !suppress) printf(" ");
usleep(delay);
}
int main(int argc, char** argv)
{
ao_device* device;
ao_sample_format format;
char* buffer;
float freq = 1000.0; // the pitch of the sound
int default_driver, buf_size, sample, i;
char ascii, opt, optcount=0;
bool audio=false, reveal=false, suppress=false;
// read options
for (i=1; i<argc; i++) {
if (argv[i][0] == '-' && strlen(argv[i]) > 1) {
opt = (argv[i][1] >= 65 && argv[i][1] <= 90) ? argv[i][1] + 32 : argv[i][1]; // convert to lower case
switch (opt) {
case 'a': audio = true; optcount++; break;
case 'r': reveal = true; optcount++; break;
case 's': suppress=true; optcount++; break;
// ignore all unrecognised options
}
}
}
// the final argument is assumed to be the text to be translated
// initialise default audio driver
if (audio) {
ao_initialize();
default_driver = ao_default_driver_id();
memset(&format, 0, sizeof(format));
format.bits = 16;
format.channels = 2;
format.rate = 44100;
format.byte_format = AO_FMT_LITTLE;
// open audio driver
device = ao_open_live(default_driver, &format, NULL);
if (device == NULL) {
if (!suppress) printf("Error opening audio device.\n");
fprintf(stderr, "Error opening audio device.\n");
} else {
// create morse sound
buf_size = format.bits/8 * format.channels * format.rate;
buffer = calloc(buf_size, sizeof(char));
for (i = 0; i < format.rate; i++) {
sample = (int)(0.75 * 32768.0 * sin(2 * M_PI * freq * ((float) i/format.rate)));
// left and right channel
buffer[4*i] = buffer[4*i+2] = sample & 0xff;
buffer[4*i+1] = buffer[4*i+3] = (sample >> 8) & 0xff;
}
}
}
// disable audio and reveal options if audio failed to initialise
if (device == NULL) {
audio = false;
reveal = false;
}
// usage
if (argc == 1) {
printf("Usage: morse [opt] [text]\n\n");
printf(" -a output audio (requires libao): sudo apt-get install libao-dev\n");
printf(" -r reveal morse as audio is played\n");
printf(" -s suppress text output\n\n");
printf("Translates to international morse code. Put text in quotes if including spaces.\n");
printf("Only alphanumeric characters translated. All other characters are ignored.\n");
// output text translation
} else if (argc > optcount + 1) {
// regardless of audio, if there is no reveal just print the morse quickly
if (!reveal && !suppress) {
for (i=0; i < strlen(argv[argc-1]); i++) {
ascii = argv[argc-1][i];
if (ascii == 32) {
// spaces
printf(" ");
} else if (ascii >= 48 && ascii <= 57) {
// numbers 0 to 9...
printf("%s", morse[ascii-48+26]);
} else if ( (ascii >= 65 && ascii <= 90) || (ascii >=97 && ascii <= 122) ) {
// letters a to z...
if ( ascii >= 97 ) ascii -= 32;
printf("%s", morse[ascii-65]);
}
if (ascii != 32 ) printf(" ");
}
fflush(stdout);
}
// but if there is audio or the morse is being revealed in morse timing then step though it
if (audio || reveal) {
for (i=0; i < strlen(argv[argc-1]); i++) {
ascii = argv[argc-1][i];
if (ascii == 32) {
// spaces
if (!suppress) printf(" ");
usleep(delay*2);
} else if (ascii >= 48 && ascii <= 57) {
// numbers 0 to 9...
dotdash((char*) morse[ascii-48+26], device, buffer, audio, reveal, suppress);
} else if ( (ascii >= 65 && ascii <= 90) || (ascii >=97 && ascii <= 122) ) {
// letters a to z...
if ( ascii >= 97 ) ascii -= 32;
dotdash((char*) morse[ascii-65], device, buffer, audio, reveal, suppress);
}
}
}
if (!suppress) printf("\n");
}
// close and shutdown
if (audio) {
ao_close(device);
ao_shutdown();
}
return (device == NULL) ? 0 : 1;
}
I can see things that could be improved but resisting the urge to tinker further. E.g. reveal should still work even if the audio driver fails to load and the final return doesn't need a ternary operator. Must resist urge to tinker...
Expected output:
Code: Usage: morse [opt] [text]
-a output audio (requires libao): sudo apt-get install libao-dev
-r reveal morse as audio is played
-s suppress text output
Translates to international morse code. Put text in quotes if including spaces.
Only alphanumeric characters translated. All other characters are ignored.
Any number of options can be given in any order. If using audio, the morse is played slowly enough that you can learn how to recognise the sounds. If you wanted to use it to play fast morse I guess you could sample the raw output into something like Audacity and then speed it up without raising the pitch. If your device doesn't support direct sampling internally then just use a male to male audio jack between the microphone and headphone inputs. Does the job.
Edit:
Have attached an example.mp3 file to show what that the following message sounds like when sped up in Audacity:
"Example of output from the morse program"
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| TP-LINK TL-WN823N V2 Wireless Adapter Activity LED Not Working |
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Posted by: captnemo - 04-02-2018, 09:50 AM - Forum: Network
- No Replies
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Dear All:
I have got an issue with subject USB WLAN adapter. After having made it work using the suggestions/modules addressed here - https://ubuntuforums.org/showthread.php?t=2348667 and here - https://askubuntu.com/questions/820886/p...ect=1&lq=1 I made the following observations:
- On a Medion Akoya E1210 running Lubuntu 4.13.0-37-generic (i686) (17.10), the adapter LED works perfectly, indicating any activity as expected; modules installed to get it operational are referred to in the two hyperlinks above;
- on a Lenovo ThinkCentre M72e DT system running Linux 4.13.0-37-generic (x86_64) (17.10) the adapter was recognized natively - does NOT indicate any activity, i.e., LED does not blink;
- on my DELL Latitude D800 running Linux Lite 3.8 Kernel 4.4.0-118-generic (i686) (16.04), I used the references given in the two hyperlinks above to make it work; the LED does NOT indicate any activity, i.e., LED does NOT blink.
I googled a considerable bit but only found indications for laptops to STOP the blinking of built-in INTEL wireless cards' activity LEDs.
Does anybody out there have a suggestion on how to turn it ON for Linux-based O/Ss? BTW - on Windows-based machines the adapter LED works as expected.
Thanks for any ideas.
-captnemo
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