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Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
I have been booting debian environments from thumb drives for 15+ years, since "live" iso releases became a thing. Very handy for poking around the occasional windows box, etc. USB 3.O makes the current crop as fast as pretty much anything. 73 On Sun, Aug 15, 2021, 11:58 Marty Hartwell <mhartwe@...> wrote:
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Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
开云体育Ok, I know what those are, so you are booting off those instead of the micro SD drive, right? I watched a video that talked about doing that, but am not sure I
wanted to go that route at this time. So am not at all familiar with the ins and outs of the use.
Marty kd8bk
On 8/15/21 11:45 AM, Dave R wrote:
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Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
开云体育Hello David, The SD card is a 32 GB SanDisk and the reader is built into the same laptop I used to flash the image. I used an SD adapter for Micro SD with it. After originally flashing the image I was able to see all the files and add the requisite SSH file to them. Later, after finding the card wiped, I tried putting it back in the Pi, which did not allow me SSH access, indicating the card was indeed wiped. The whole issue of "finding the card wiped" is just bizzare to me.? It's not common so something else must be happening here assuming that once you shutdown the Rpi with a "sudo shutdown -h now", wait for the power LED to blink 10 times and then it should go OFF.? At that point, you should remove power from the Rpi and the card should be safe.?? If you've not seeing this LED blink behavior, you might have a power supply issue: ?? Next, it's worth mentioning that there seems to be a good number of fake SD cards out there.? Hopefully you're getting your cards from a reputable source but one way to confirm your cards are legitimate is to use the official SD Card formatter from the SD Association.? This is a Windows / MacOS program and is very easy to use: ?? Also, do remember that SD cards don't last forever and their life depends on their use.? Older versions of the Raspbian OS defaulted to writing a lot of log files to the SD card which would wear out the card.? Newer versions of the Raspberry Pi OS are much better here but if the cards you're using were previously used in say smartphones or other devices, they might be getting at the end of their useful life. Next, how old is this laptop?? A 32GB SD card should work fine with an SD card reader that supports SDHC.? You probably WON'T find any labeling on your laptop that will show this so you'll have to research in the laptop's manual.? Even then, it might be hard to find. You keep mentioning "ssh".? Do you not have an HDMI monitor connected to the Rpi to see what happens at boot time?? There is a specific sequence that you should see and depending on the state of the SD card, you can better understand what's happening (rainbow screen, multiple raspberry icons in the upper left, scrolling kernel text, etc). The second card I tried was a 32 GB Lexar. It was wiped except for an empty folder called overlays and under the root were cmdline.txt, config.text and issue.txt and nothing else. Was it just overlays or were there also other files in there?? Here is what a working /boot directory looks like: -- rpi3:/boot $ ls -la total 22393 drwxr-xr-x? 3 root root??? 3072 Dec 31? 1969 . drwxr-xr-x 22 root root??? 4096 Oct 14? 2017 .. -rwxr-xr-x? 1 root root?? 23946 Sep? 7? 2019 bcm2708-rpi-b.dtb -rwxr-xr-x? 1 root root?? 24205 Sep? 7? 2019 bcm2708-rpi-b-plus.dtb -rwxr-xr-x? 1 root root?? 23723 Sep? 7? 2019 bcm2708-rpi-cm.dtb -rwxr-xr-x? 1 root root?? 23671 Sep? 7? 2019 bcm2708-rpi-zero.dtb -rwxr-xr-x? 1 root root?? 24407 Sep? 7? 2019 bcm2708-rpi-zero-w.dtb -rwxr-xr-x? 1 root root?? 25293 Sep? 7? 2019 bcm2709-rpi-2-b.dtb -rwxr-xr-x? 1 root root?? 26463 Sep? 7? 2019 bcm2710-rpi-3-b.dtb -rwxr-xr-x? 1 root root?? 27082 Sep? 7? 2019 bcm2710-rpi-3-b-plus.dtb -rwxr-xr-x? 1 root root?? 25261 Sep? 7? 2019 bcm2710-rpi-cm3.dtb -rwxr-xr-x? 1 root root?? 52296 Sep? 7? 2019 bootcode.bin -rwxr-xr-x? 1 root root???? 147 Sep? 2? 2017 cmdline.txt -rwxr-xr-x? 1 root root???? 119 Sep? 2? 2017 cmdline.txt.linpac-broken -rwxr-xr-x? 1 root root???? 147 Sep? 2? 2017 cmdline.txt.linpac-works -rwxr-xr-x? 1 root root??? 1663 Sep? 2? 2017 config-jessie.txt -rwxr-xr-x? 1 root root??? 1688 Nov 22? 2017 config.txt -rwxr-xr-x? 1 root root?????? 0 Sep? 2? 2017 config.txt-NOT-NATIVE-STRETCH-VER -rwxr-xr-x? 1 root root?? 18693 Sep? 7? 2019 COPYING.linux -rwxr-xr-x? 1 root root????? 41 Mar 17? 2018 .firmware_revision -rwxr-xr-x? 1 root root??? 2644 Sep? 7? 2019 fixup_cd.dat -rwxr-xr-x? 1 root root??? 6729 Sep? 7? 2019 fixup.dat -rwxr-xr-x? 1 root root??? 9801 Sep? 7? 2019 fixup_db.dat -rwxr-xr-x? 1 root root??? 9801 Sep? 7? 2019 fixup_x.dat -rwxr-xr-x? 1 root root???? 145 Aug 15? 2017 issue.txt -rwxr-xr-x? 1 root root 5310800 Sep? 7? 2019 kernel7.img -rwxr-xr-x? 1 root root 5026968 Sep? 7? 2019 kernel.img -rwxr-xr-x? 1 root root??? 1494 Sep? 7? 2019 LICENCE.broadcom -rwxr-xr-x? 1 root root?? 18974 Aug 15? 2017 LICENSE.oracle drwxr-xr-x? 2 root root?? 15360 Sep? 7? 2019 overlays -rwxr-xr-x? 1 root root? 685572 Sep? 7? 2019 start_cd.elf -rwxr-xr-x? 1 root root 4855080 Sep? 7? 2019 start_db.elf -rwxr-xr-x? 1 root root 2878340 Sep? 7? 2019 start.elf -rwxr-xr-x? 1 root root 3792520 Sep? 7? 2019 start_x.elf -- Finally, you mentioned in another email that you're using Ubuntu.? While that should work, you might consider learning using the official Raspberry Pi OS image for now.? It has the best support possible for your Raspberry Pi hardware and is very stable, reliable, and tuned for low system resources.? Ubuntu on the other hand is usually VERY heavy weight (depends on the specific sub-version you use) and can run slower, leave less resources for enduser programs to run, etc.? Something to consider. --David |
Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
aka thumb drive. The little SD cards are a pain on the pi400. Mine is velcro'd to the desk. The USB 3.0 flash drive plugs into a USB 3.0 hub. 73 On Sun, Aug 15, 2021, 09:07 Marty Hartwell <mhartwe@...> wrote:
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Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
开云体育Hi In the Pi menu selection it is I think under Preferences, or
Utilities, and is a standard item for creating a backup. It isn't real fast but it does work. Marty kd8bj
On 8/14/21 10:14 PM, David AJ6RE wrote:
Hi Marty, no, I didn't know there was one.? |
Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
开云体育Hi Don't know what "USB Flash" is, I just go to the menu item to backup SD card, make sure to have the backup disk in the adapter and let it go. I agree it isn't real fast but then I am not usually in a real hurry or come back after awhile and it
is finished. I then have a good back up of the Micro SD card. I use the Ultra
64GB cards and designate two cards for each Pi 4 4GB I have. I usually backup after each use and then switch to even out activity.
Marty kd8bj
On 8/14/21 3:35 PM, Dave R wrote:
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Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
Hi James, I did try putting the card back in the Pi, and could not connect via SSH. I have not reformatted the same card--I used a different one.?
Based on your suggestion (and others here) I have checked the original card on a Linux machine (Ubuntu) and did find that in addition to the volume label were two other files I could not see from the Windows machine:? IndexerVolumeGuid WPSettings.dat |
Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
Dave, thanks for sharing your experience. I will re-examine the cards on a Linux system and see if there is anything there. However the Pi would not take my SSH so I am not optimistic.
I did read on another forum that some users were having SD cards getting repeatedly "burned up" by their Pi's, but others (like you, having lots of experience with multiple units running all the time), were incredulous. I am new at this so it is completely within the realm of possibility that this is a matter of operator error. This was indeed flashed from a Windows machine, but originally I was able to see the files on that machine, so unless the Pi reformatted the card I don't see why it would now be unreadable on the same machine. |
Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
David, thank you for the very helpful information. The SD card is a 32 GB SanDisk and the reader is built into the same laptop I used to flash the image. I used an SD adapter for Micro SD with it. After originally flashing the image I was able to see all the files and add the requisite SSH file to them. Later, after finding the card wiped, I tried putting it back in the Pi, which did not allow me SSH access, indicating the card was indeed wiped. The second card I tried was a 32 GB Lexar. It was wiped except for an empty folder called overlays and under the root were cmdline.txt, config.text and issue.txt and nothing else.
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Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
Fred, thanks for the suggestion. I didn't think to look for backup instructions for the Pi, since I didn't even know it had that capability.?
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Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
Hi Marty, no, I didn't know there was one.?
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Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
Hi Dave, no I might try that next instead, Thanks for the suggestion.
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Re: RealVNC loses connection
开云体育Hello Carlos, Pi and client are sitting next to each other, router is 7ft away, PC is ethernet connected.? I have the Pi as? 192.168.1.10 on port 5900.? I have real VNC setup for both cloud and direct connection.? Since you're doing a connection from one internal host to another internal host, you are NOT going through your router or using it's port forward setting. Which VNC?? I am using RealVNC server on the Pi and Viewer on the desktop PC. I assume that when you say "Viewer", you mean "RealVNC Viewer"?? I'm trying to be specific as there are probably more than a dozen different VNC clients out there for Linux. <13> 2021-08-14T20:02:14.199Z carlosmint vncviewer[6553]: Child: 6562: CConnection: close: [NoKeepAliveResponse] Timed out waiting for response to "keep alive" message This log entry is from your VNC Viewer and seems to indicate that the server isn't responding to keepalive packets.? Can you post some of the relevant logs from the VNC *Server* side of things? One other thing you might do is on the client machine, open another terminal window and PING the VNC server IP of 192.168.1.10 and when the VNC session seems to drop, do you also see your pings stop responding? --David KI6ZHD |
Re: RealVNC loses connection
David, thanks for the reply.
I was at extreme frustration point when I posted and just sorta puked out HELP. Pi OS is the default Raspbian, 8G.? Internet speed is 250 synched.? PC is Mint 19 Tara, CPU AMD A4-5300 APU with Radeon Pi and client are sitting next to each other, router is 7ft away, PC is ethernet connected..? I have the Pi as? 192.168.1.10 on port 5900.? I have real VNC setup for both cloud and direct connection.? I went into the router and Nat Filtering was set to secure, changed to open.? I believe this is what you are referring to. Which VNC?? I am using RealVNC server on the Pi and Viewer on the desktop PC. Changed KeepAliveInterval from 30 to 15 and KeepAliveResponse from 30 to 60 on the viewer. ***Disconnected within 5mts.*** VNC Log?? See the end of the reply for last 50 to 70 entries. ?Time to head out to the contest station for the 50m sprint. Thanks Carlos 08-14T19:59:09.743Z carlosmint vncviewer[6553]: Child: 6562: CSession: connection error: Hosted Connection-Broker error: Timed out waiting for target principal <13> 2021-08-14T19:59:09.743Z carlosmint vncviewer[6553]: Child: 6562: CConnection: close: [Hosted] VNC Server is not currently listening for Cloud connections. <14> 2021-08-14T19:59:13.748Z carlosmint vncviewer[6553]: Child: 6562: CModuleReconnector: Attempting reconnect... <13> 2021-08-14T19:59:13.748Z carlosmint vncviewer[6553]: Child: 6562: CSession: Connecting to tqvU1p-nKpcX-hScywy (Hosted) <14> 2021-08-14T19:59:13.748Z carlosmint vncviewer[6553]: Child: 6562: ServerIdConnector: Using cached Viewer credentials bKHDFy-mfiwR-JMrcw1 <13> 2021-08-14T19:59:14.120Z carlosmint vncviewer[6553]: Child: 6562: CSession: Beginning RFB connection to raspberrypi <14> 2021-08-14T19:59:14.120Z carlosmint vncviewer[6553]: Child: 6562: CSession: Encryption set to 'Server' <14> 2021-08-14T19:59:14.179Z carlosmint vncviewer[6553]: Child: 6562: CConnection: Server supports RFB protocol version 5.0 <14> 2021-08-14T19:59:14.179Z carlosmint vncviewer[6553]: Child: 6562: CConnection: Using RFB protocol version 5.0 <14> 2021-08-14T19:59:14.203Z carlosmint vncviewer[6553]: Child: 6562: CProtoPostV4: Server selected cipher suite RA4-PSK_128 [0x0602] (algorithms: RSA-OAEP, ECDHE-Curve25519, PSK, SHA-256, AES-GCM-128) <14> 2021-08-14T19:59:14.253Z carlosmint vncviewer[6553]: Child: 6562: CProtoPostV4: Server offered authentication method UserPasswd(1) [required=1] <13> 2021-08-14T19:59:14.253Z carlosmint vncviewer[6553]: Child: 6562: CProtoPostV4: Choosing authentication method UserPasswd(1) <14> 2021-08-14T19:59:14.311Z carlosmint vncviewer[6553]: Child: 6562: CProtoPostV4: Server offered empty authentication list (auth completed) <13> 2021-08-14T19:59:14.311Z carlosmint vncviewer[6553]: Child: 6562: CConnection: Authentication successful <14> 2021-08-14T19:59:14.347Z carlosmint vncviewer[6553]: Child: 6562: CConnection: Peer user agent vncserver-x11/6.7.4 (LXDE; Raspbian GNU/Linux 10; Linux 5.10.17; armv7l; en_US) <14> 2021-08-14T19:59:14.412Z carlosmint vncviewer[6553]: Child: 6562: FTMsgWriter: Advertised share 3888316702, flags 0x80 <14> 2021-08-14T19:59:14.412Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Server pixel format depth 24 (32 bpp) little-endian rgb888 <14> 2021-08-14T19:59:14.412Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Requesting ZRLE2 encoding (line speed 0 kbit/s) <14> 2021-08-14T19:59:14.412Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Using pixel format depth 6 (8 bpp) rgb222 <14> 2021-08-14T19:59:14.412Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: requesting initial update <14> 2021-08-14T19:59:14.417Z carlosmint vncviewer[6553]: Child: 6562: ftExtension: directory '' of share 3888316702 requested to depth 0 <14> 2021-08-14T19:59:14.417Z carlosmint vncviewer[6553]: Child: 6562: FTMsgWriter: Sent 1 filename(s), marshalled=85 <14> 2021-08-14T19:59:14.417Z carlosmint vncviewer[6553]: Child: 6562: FTMsgWriter: Sent EOF share 3888316702 <14> 2021-08-14T19:59:14.503Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Requesting JRLE encoding (line speed 2864 kbit/s) <14> 2021-08-14T19:59:14.503Z carlosmint vncviewer[6553]: Child: 6562: ftExtension: 0-123 of Stylus-Photo-R200 via VNC from carlosmint requested (compressed) <14> 2021-08-14T19:59:14.510Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Requesting full color (line speed 2864 kbit/s) <14> 2021-08-14T19:59:14.510Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Using pixel format depth 24 (32 bpp) little-endian rgb888 <13> 2021-08-14T20:02:14.199Z carlosmint vncviewer[6553]: Child: 6562: CConnection: close: [NoKeepAliveResponse] Timed out waiting for response to "keep alive" message <14> 2021-08-14T20:02:21.260Z carlosmint vncviewer[6553]: Child: 6562: CModuleReconnector: Attempting reconnect... <13> 2021-08-14T20:02:21.260Z carlosmint vncviewer[6553]: Child: 6562: CSession: Connecting to tqvU1p-nKpcX-hScywy (Hosted) <14> 2021-08-14T20:02:21.261Z carlosmint vncviewer[6553]: Child: 6562: ServerIdConnector: Using cached Viewer credentials bKHDFy-mfiwR-JMrcw1 <13> 2021-08-14T20:02:21.886Z carlosmint vncviewer[6553]: Child: 6562: CSession: Beginning RFB connection to raspberrypi <14> 2021-08-14T20:02:21.886Z carlosmint vncviewer[6553]: Child: 6562: CSession: Encryption set to 'Server' <14> 2021-08-14T20:02:21.968Z carlosmint vncviewer[6553]: Child: 6562: CConnection: Server supports RFB protocol version 5.0 <14> 2021-08-14T20:02:21.968Z carlosmint vncviewer[6553]: Child: 6562: CConnection: Using RFB protocol version 5.0 <14> 2021-08-14T20:02:21.990Z carlosmint vncviewer[6553]: Child: 6562: CProtoPostV4: Server selected cipher suite RA4-PSK_128 [0x0602] (algorithms: RSA-OAEP, ECDHE-Curve25519, PSK, SHA-256, AES-GCM-128) <14> 2021-08-14T20:02:22.074Z carlosmint vncviewer[6553]: Child: 6562: CProtoPostV4: Server offered authentication method UserPasswd(1) [required=1] <13> 2021-08-14T20:02:22.074Z carlosmint vncviewer[6553]: Child: 6562: CProtoPostV4: Choosing authentication method UserPasswd(1) <14> 2021-08-14T20:02:22.137Z carlosmint vncviewer[6553]: Child: 6562: CProtoPostV4: Server offered empty authentication list (auth completed) <13> 2021-08-14T20:02:22.137Z carlosmint vncviewer[6553]: Child: 6562: CConnection: Authentication successful <14> 2021-08-14T20:02:22.175Z carlosmint vncviewer[6553]: Child: 6562: CConnection: Peer user agent vncserver-x11/6.7.4 (LXDE; Raspbian GNU/Linux 10; Linux 5.10.17; armv7l; en_US) <14> 2021-08-14T20:02:22.448Z carlosmint vncviewer[6553]: Child: 6562: FTMsgWriter: Advertised share 3888316703, flags 0x80 <14> 2021-08-14T20:02:22.448Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Server pixel format depth 24 (32 bpp) little-endian rgb888 <14> 2021-08-14T20:02:22.448Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Requesting ZRLE2 encoding (line speed 0 kbit/s) <14> 2021-08-14T20:02:22.448Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Using pixel format depth 6 (8 bpp) rgb222 <14> 2021-08-14T20:02:22.448Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: requesting initial update <14> 2021-08-14T20:02:22.450Z carlosmint vncviewer[6553]: Child: 6562: ftExtension: directory '' of share 3888316703 requested to depth 0 <14> 2021-08-14T20:02:22.450Z carlosmint vncviewer[6553]: Child: 6562: FTMsgWriter: Sent 1 filename(s), marshalled=85 <14> 2021-08-14T20:02:22.450Z carlosmint vncviewer[6553]: Child: 6562: FTMsgWriter: Sent EOF share 3888316703 <14> 2021-08-14T20:02:22.541Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Requesting JRLE encoding (line speed 10024 kbit/s) <14> 2021-08-14T20:02:22.541Z carlosmint vncviewer[6553]: Child: 6562: ftExtension: 0-123 of Stylus-Photo-R200 via VNC from carlosmint requested (compressed) <14> 2021-08-14T20:02:22.550Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Requesting full color (line speed 10024 kbit/s) <14> 2021-08-14T20:02:22.550Z carlosmint vncviewer[6553]: Child: 6562: QualSelector: Using pixel format depth 24 (32 bpp) little-endian rgb888 <13> 2021-08-14T20:02:28.442Z carlosmint vncviewer[6553]: Child: 8357: CConnection: close: [NoKeepAliveResponse] Timed out waiting for response to "keep alive" message <14> 2021-08-14T20:02:29.449Z carlosmint vncviewer[6553]: Child: 8357: CModuleReconnector: Attempting reconnect... <13> 2021-08-14T20:02:29.449Z carlosmint vncviewer[6553]: Child: 8357: CSession: Connecting to 192.168.1.10:5900 (Chooser for Direct UDP/Direct TCP via proxy settings) <13> 2021-08-14T20:04:14.393Z carlosmint vncviewer[6553]: Child: 8357: CConnection: close: [ViewerClosed] VNC Viewer closed <13> 2021-08-14T20:04:14.407Z carlosmint vncviewer[6553]: Child: 6562: CConnection: close: [ViewerClosed] VNC Viewer closed <13> 2021-08-14T20:04:20.437Z carlosmint vncviewer[6553]: AbApp: stopped |
Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
Does it work on USB Flash? That's what I'm using. 73 On Sat, Aug 14, 2021, 11:10 Marty Hartwell <mhartwe@...> wrote:
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Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
开云体育HI Is there a reason to not use the built in SD backup tool? This
works well for me.
Marty kd8bj
On 8/14/21 12:58 PM, Fred Hillhouse
wrote:
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Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
开云体育I am not using Hampi but I recently made a backup ?of my image on my PiZ-W. I think I used instruction I found on Raspberry forum. I backed up to an USB drive then restored to a new uSD. I am currently using my back up so I know it works. ? Fred N7FMH ? From: [email protected] [mailto:[email protected]] On Behalf Of David AJ6RE ? After successfully using my Rpi 4 B+ for a few months as part of my homebrew mobile manpack rig I decided to back up the SD card prior to installing a GPS dongle. I did a sudo shutdown -h now and powered down. When I stuck the SD card it into my PC it was blank, save for the volume label.? |
Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
开云体育Hello Dave, Yes, you're right.. you can install third party utilities or install the optional WSL sub-system on Windows10 to read/write Linux filesystems but my point is still valid for STOCK Windows.? Stock Windows cannot read/write most Linux and other UNIX file systems but it should be able to read the FAT32 /boot partition.? If it cannot, there is something else wrong and I would suspect the SD card reader. --David KI6ZHD On 08/14/2021 09:24 AM, Dave Wade
wrote:
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Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
Hi
Having used the Raspberry Pi? (3, 4 and Zero) for Amateur TV projects (in particular the Portsdown Digital Amateur TV Transceiver?) for the past 5 years, including literally hundreds of card builds, I can say that I have never seen this happen. I would suggest one of 3 possible explanations:
Even if you removed the card before shutdown, it would still have the Linux file system on it.? (I have done it, and the card survived). Hope that helps Dave, G8GKQ |
Re: SD Cards Erased Upon Removal?
#raspberrypi
#usability
#hampi
#hardware
#pi
开云体育David, There are tools that allow a an EXT4 file system to be viewed on a Windows PC for example ? ? but there are other tools…. ? Dave G4UGM ? From: [email protected] <[email protected]> On Behalf Of David Ranch
Sent: 14 August 2021 16:58 To: [email protected] Subject: Re: [RaspberryPi-4-HamRadio] SD Cards Erased Upon Removal? #hampi #hardware #pi #raspberrypi #usability ?
On 08/13/2021 05:34 PM, David AJ6RE wrote:
? |