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Hacker Public Radio

Podcast Hacker Public Radio
Hacker Public Radio
Hacker Public Radio is an podcast that releases shows every weekday Monday through Friday. Our shows are produced by the community (you) and can be on any topic...

Episódios Disponíveis

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  • HPR4348: Resizing the root partition on a PC
    This show has been flagged as Explicit by the host. Background It all happened when I noticed that a disk space monitor sitting in the top right hand side on my Gnome desktop was red. On inspection I discovered that my root filesystem was 87% full. The root partition was only 37GB in size which meant there was less than 4GB of space left. When I thought back I remembered that my PC was running a bit slower than usual and that that the lack of space in the root partition could have been to blame. I had some tasks that I wanted to complete and thought I’d better do something about the lack of space before it became an even bigger problem. What happened As per usual all this happened when I was short of time and I was in a bit of a hurry. Lesson one don’t do this sort of thing when your in a bit of a hurry. Because I was in a hurry I didn’t spend time doing a complete backup. Lesson two do a backup. My plan was to get some space back by shrinking my home partition leaving some empty space to allow me to increase the size of my root partition. For speed and ease I decided to use Gparted as I have used this many times in the past. Wikipedia article about Gparted Official Gparted webpage It’s not a good idea to try and resize and or move a mounted filesystem so a bootable live version of Gparted would be a good idea. The reason for this is that if you run Gparted from your normal Linux OS and the OS decides to write something to the disk while Gparted is also trying to write or move things on the disk then as you could imagine very bad things could and probably would happen. I knew I had an old bootable live CDROM with Gparted on it as I had used this many times in the past though not for a few years. As I was short on time I thought this would be the quickest way to get the job done. I booted up the live CD and setup the various operations such as shrinking the home partitions, moving it to the right to leave space for the root partition then finally increasing the size of the almost full root partition. What I didn’t notice at the time is that there was a tiny explanation mark on at least one of the partitions. I probably missed this because I was in a hurry. Lesson three don’t rush things and be on the lookout for any error messages. When I clicked the green tick button to carry out the operations it briefly seemed to start and almost instantly stopped saying that there were errors and that the operation was unsuccessful and something about unsupported 64 bit filesystems. At this point I thought / hoped that nothing had actually happened. My guess was that the old live Gparted distribution I was using didn’t support Ext4 though I could be completely wrong on this. Lesson four don’t use old versions of Gparted particularly when performing operations on modern filesystems. Wikipedia article about the Ext4 filesystem I removed the Gparted bootable CD and rebooted my PC. At this point I got lots of errors scrolling up the screen I then got a message I’ve never see before from memory I think it said Journaling It then said something about pass 1 pass 2 pass 3 and continued all the way to 5. Then it talked about recovering data blocks. At this point I got very nervous. I had all sorts of fears going through my head. I imagined I may have lost all the contents of my hard-rive. The whole experience was very scary. I let it complete all operations and eventually my Ubuntu operating system came up and seemed okay. I rebooted the PC and this time it booted correctly with no error messages and everting was okay. I have often seen things said about Journaling filesystems and how good they are though until this point I had never seen any real examples of them repairing a filesystem. Both my root and home partitions were EXT 4 and thankfully EXT 4 supports Journaling which I believe on this occasion saved me from a great deal of pain. Lesson five it might be a good idea to use Journaling filesystems. Wikipdeai article about Journaling filesystems This still left me with the original problem in that I had little free space on my root filesystems. This time I decided to take my time and break the task up into smaller chunks and not to do it in one go. First I downloaded the newest Live distribution version of Gparted I performed the checksum test to make sure the download was successful with no errors. The next day I tried to write it to a CD-ROM something I haven’t done for a very long time. I initially couldn’t understand why I couldn’t click on the write button then I looked at my blank CD-ROM using the UBUNTU GNOME DISKS application. It reported that the disk was read only. I did a bit of goggling and came across a post saying that they had come across this and that they solved this by installing the CD-ROM writing application Brasero. Wikipedia article about Brasero ) Official website for Brasero Installing Brasero solved the problem and allowed me to write the image file to CD-ROM. I was actually surprised that it wasn’t installed as I’ve used this application in the past. Just goes to show how long it’s been since I’ve written anything to CD-ROM! I booted the CD-ROM to check that Gparted worked and didn’t see any explanation marks on any of my partitions. I was short on time and didn’t want to rush things so decided to stop at this point. Later on I popped the live bootable Gparted CD-ROM running version 1.6.0.3 AMD 64 version into my PC and booted it up. Everything seemed okay and there were no errors showing. I took my home partition SDA6 and shrunk it down by about 20 GB and then shifted it 20 GB to the right to the end of the disk. This left a 20 GB gap at the end of my root partition. I then increased the size of my root partition SDA5 by approximately 20 GB to fill the empty space. It took Gparted about one hour and 40 minutes to complete all the operations. The root partition is now reporting 61% full rather than 86% full. The root partition is now approximately 53 GB in size with 31 GB used. 22 GB is now free which is a bit more comfortable. Picture 1 Is a screenshot of GParted showing the new sizes of my root and home partitions. I removed the GParted CD from my CD-ROM drive and rebooted the PC to thankfully find all was well and no errors reported. Conclusion My PC is now running more smoothly. All I can say after all this is that I consider myself very lucky this time and I hope I learned some valuable lessons along the way. Provide feedback on this episode.
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  • HPR4347: "Of my country!" Brazil - in a Southern city viewing
    This show has been flagged as Clean by the host. I’m glad I’m here with you! I'll tell my impressions on things of my Brazilian country. Pardon me for some high-volume transitions ! Trying and testing the brickabrackis ( possibilities ). Pleasing or not. Thanks! Topics: 1- Sistema Único de Saúde (the national health system) Works! Any citizen, any person, has access to health treatment: no payment, no check if the person has payed taxes on anything, if is a worker or not. Of course, waiting time might be a problem if it's not an urgency or emergency, and quality varies (as any service, paid or not), according to city (capital or country town, more structured or smaller cities), hospital, the specific doctor and support team etc. 2- Tap water The water from the tap is safe, recognized as drinking water (in my city, and maybe in many if not most). The water treatment company ("Sanepar") here even sells their water bottled, and sponsors events that distribute them (sports events) to show the quality. But people don't use to drink from the tap it directly. If they do not use a filter, it's common to buy water in 20 liters carboys (big plastic bottles, 20L is a bit more than 5 gallons) . I use this last option, but drink water under the shower also. Most people (that I know, of course) simply don't drink water ! I don't know. I don't understand how it is, but they don't drink water, not even a liter per day. Coffee and soda are the most common "substitutes". 3- Religion numbers Statistics about religion are very misleading. You can find different numbers but it's generally: more than half identifying as Catholics. More than 20% evangelical, 10% without religion. But those numbers say nothing about reality of what you find in the streets. Maybe because in some areas it's embarassing to identify as an atheist, as if you're immoral and cannot be trusted; so, people without religion simply say the religion of the family, or the generic "catholic, non-practicing". 4- Brazilian Law Our law is written and detailed. Everything you could want to know about our judicial system, our rights and etc. are explicit in laws; and our Constitution, in force since 1988, with more than 200 articles, guides all. The Supreme Court can make and change interpretations and, thus, issue binding decisions that are not seem in the law, but this is the exception. Cover of the official edition of the Brazilian Constitution in the English Language. (Source: https://www.stf.jus.br/arquivo/cms/legislacaoConstituicao/anexo/Brazil_Federal_Constitution_EC_125.pdf. Accessed on February 2025.) Most of the norms are federal and encompass the entire nation: it is a reason we are so "equal", in many senses, while living in a country with 212 million people (official estimation of IBGE, July 1st 2024 * ) and that represents 48% of the size of South America. 5- Now something very specific to my city, a capital city on the south of the country It's not expected to say Good morning when you cross with a stranger on the street. No Hello or Good morning to the bus driver also. I mean, a lot of people greet, but many don't and it's common to not do so. In many other parts of the country, of course, it's different. For example, I lived in a capital city on the north, and everybody expected you to say Good Morning! when entering an elevator in the morning, behavior that generally makes people think you're strange here in my southern city. If I ask for the name of a seller on a store, to be more polite saying his or her name occasionally if I am making a lot of questions and demanding more attention time, they ask, you're not from here are you? And I am. If anything here sounds not good, please reject and keep the good. It's only impressions that I wanted to share. Thank you. * This news in English: From: Agência IBGE. Link: https://agenciadenoticias.ibge.gov.br/en/agencia-news/2184-news-agency/news/41122-populacao-estimada-do-pais-chega-a-212-6-milhoes-de-habitantes-em-2025 . Accessed on February 2025. Sound used, credits (author – sound): freesound_community / Pixabay – Dictaphone . Robinhood76 / Freesound.org – 01893 do it again spell (CC-BY-NC 4.0) Javolenus / ccmixter – Arctura (Polarpulse PS3300) (CC-BY-NC 4.0) Robinhood76 / Freesound.org – 13024 reel to reel fast forward with preview (CC-BY-NC 4.0) Zavier Brewer / Pixabay – Re(wind) [ending music before the outro]. Provide feedback on this episode.
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  • HPR4346: A brief review of the Pinetab 2
    This show has been flagged as Clean by the host. The PineTab2 is PINE64's successor to the original PineTab Linux tablet computer, featuring a faster processor and better availability. The tablet is available in two configurations, 4GB of RAM and 64GB of internal storage or 8GB of RAM and 128GB of internal storage. The tablet ships with a detachable keyboard that doubles as a protective cover. The tablet is designed around the Rockchip RK3566 processor, which features 4 energy-efficient Cortex-A55 64-bit ARM cores and enjoys good mainline Linux support. A similarly packaged RISC-V tablet is the PineTab-V. Pre-orders started on the 13th of April 2023, with pricing starting at USD 159 for the 4GB/64GB version and USD 209 for the 8GB/128GB version. The PineTab2 began shipping on June 2, 2023. Taken from https://wiki.pine64.org/wiki/PineTab2 Provide feedback on this episode.
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  • HPR4345: Android 2025
    This show has been flagged as Clean by the host. A collection of tips and tricks that operat0r uses to make a standard Android phone more custom. The secret block extension is "11335506" - tell 'em Ken sent ya. Links UserLAnd - Linux on Andro UserLAnd is an open-source app which allows you to run several Linux distributions like Ubuntu, Debian, and Kali. Widgify - DIY Live Wallpaper Widgify is a well-designed beautification tool for phone, where you can experience a wide variety of screen widgets to easily match your super personalized phone home screen! Nova Launcher Prime Nova Launcher is a powerful, customizable, and versatile home screen replacement. Firefox Nightly for Developers Nightly is built for testers. Help us make Firefox the best browser it can be. Expanded extension support in Firefox for Android Nightly How to use collections on addons.mozilla.org SponsorBlock SponsorBlock is an open-source crowdsourced browser extension and open API for skipping sponsor segments in YouTube videos. WireGuard (VPN) The official app for managing WireGuard VPN tunnels. DNS66 This is a DNS-based host blocker for Android. (Requires root) Hacker's Keyboard Four- or five-row soft-keyboard TidyPanel Notification Cleaner Tidy up your notification panel with simple, minimal, beautiful and intuitive UI. Provide feedback on this episode.
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  • HPR4344: 24-25 New Years Eve show episode 4
    This show has been flagged as Explicit by the host. ----------------- NYE 2025 4 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Jimmy Carter and the Govenor of Texas https://www.cbsnews.com/texas/news/texas-governor-greg-abbott-sends-condolences-to-rosalynn-carter-who-died-in-2023-following-jimmy-carters-death/ Finger Cot https://en.wikipedia.org/wiki/Finger_cot Filk Music https://en.wikipedia.org/wiki/Filk_music Moss Bliss https://mordewis.bandcamp.com/ Georgia Filk Convention https://www.gafilk.org/ Liquid Callus https://www.amazon.com/Rock-Tips-Liquid-Formula-Stringed-Instruments/dp/B008MY3VU2 Enya Nextg Guitar https://www.enya-music.com/collections/guitar Guitar Gloves https://www.amazon.com/guitar-glove/s?k=guitar+glove Soju https://en.wikipedia.org/wiki/Soju Bird Dog Whiskey https://birddogwhiskey.com/ Delta 8 vs Delta 9 https://jcannabisresearch.biomedcentral.com/articles/10.1186/s42238-021-00115-8 Bodhi Linux https://www.bodhilinux.com/ Internet Archive https://archive.org/ Trump buy Greenland https://www.foxnews.com/politics/make-greenland-great-again-trumps-house-gop-allies-unveil-bill-authorize-countrys-purchase Pierre Poilievre https://en.wikipedia.org/wiki/Pierre_Poilievre Chrystia Freeland https://en.wikipedia.org/wiki/Chrystia_Freeland Justin Trudeau https://en.wikipedia.org/wiki/Justin_Trudeau New Democratic Party https://en.wikipedia.org/wiki/New_Democratic_Party Trump Bankruptcies https://www.abi.org/feed-item/examining-donald-trump%E2%80%99s-chapter-11-bankruptcies Elmers Glue https://www.elmers.com/ Pentagon Federal Credit Union https://www.penfed.org/ US Draft https://en.wikipedia.org/wiki/Conscription_in_the_United_States Vienna Susages https://en.wikipedia.org/wiki/Vienna_sausage Vegan vs Vegetarian https://www.healthline.com/nutrition/vegan-vs-vegetarian Beyond Meat sausage https://www.beyondmeat.com/en-US/products/beyond-sausage Raspberry PI 5 https://www.raspberrypi.com/products/raspberry-pi-5/ MIT Open Course Ware https://ocw.mit.edu/ HAM License http://www.arrl.org/getting-licensed 89 Corolla https://en.wikipedia.org/wiki/Toyota_Corolla_(E90)#North_America Autism https://en.wikipedia.org/wiki/Autism Asperger syndrome https://en.wikipedia.org/wiki/Asperger_syndrome Narcissistic https://www.helpguide.org/mental-health/personality-disorders/narcissistic-personality-disorder Thermal Paste https://en.wikipedia.org/wiki/Thermal_paste 7-11 https://www.7-eleven.com/ MIT https://www.mit.edu/ Wild Pie https://www.wildpie.com/ Follow your Heart Cheese https://followyourheart.com/product_category/dairy-free-cheese/ Morning Star https://www.morningstarfarms.com/en_US/products/veggie-burgers.html Boca Burger https://www.kraftheinz.com/boca Nip/Tuck https://www.imdb.com/title/tt0361217/ American Cheese https://en.wikipedia.org/wiki/American_cheese Boxing Day https://en.wikipedia.org/wiki/Boxing_Day Mumble https://www.mumble.info/ VPN https://en.wikipedia.org/wiki/Virtual_private_network Pfsense https://www.pfsense.org/ Open wrt https://openwrt.org/ AC wifi protocol https://en.wikipedia.org/wiki/IEEE_802.11ac-2013 Open Sense https://opnsense.org/ Linux https://www.linux.org/ Wiindows 7 https://en.wikipedia.org/wiki/Windows_7 VAX system https://en.wikipedia.org/wiki/VAX Novell https://en.wikipedia.org/wiki/Novell PDP-11 https://en.wikipedia.org/wiki/PDP-11 Lotus Notes https://en.wikipedia.org/wiki/Lotus_Software Red Hat Linux https://www.redhat.com/en Debian Linux https://www.debian.org/ Ubuntu Linux https://ubuntu.com/ Linux Mint https://linuxmint.com/ Open Suse https://www.opensuse.org/ Provide feedback on this episode.
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