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Questions tagged [sd-card]

A storage medium used in mobile devices like digital cameras, tablets, smartphones, ...

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SD card detected but no /dev entry created

Relevant dmesg: [980875.386648] mmc0: new SD card at address cde5 lsblk doesn't see it. /dev content does not change on insertion. The reader is integrated but sits on the USB bus. Anything beyond ...
Vorac's user avatar
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6 votes
1 answer
948 views

Interpreting the output of badblocks: when is it time to replace the MicroSD card?

Context I am running a Raspberry Pi Zero with a Micro SD as it is designed.  However, for this specific application, I cannot use a read-only system as I usually do with a Raspberry Pi. Objective Keep ...
giovi321's user avatar
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122 views

My SD card reader doesn't work

When inserting an SD card in my laptop's internal card reader, it's not being recognized by my system. I've tried 2 micro-SD cards with an adapter and 1 SD card, which all work perfectly fine on ...
tygo's user avatar
  • 3
-1 votes
1 answer
44 views

How are data organized when written in the Micro SD cards? [closed]

How are data organized when written in the Micro SD cards as there are no mechanical spinning platters like hard disks?
ordinary_guy's user avatar
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1 answer
97 views

Corrupt SD card image only shows zeros in HexEditor

in our sports club somebody stole money over and over again. So some members set up a hidden camera to record him. After the next day the money was gone and they checked the camera. The SD card worked ...
DerScheini's user avatar
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0 answers
54 views

files disappear upon umount

I have a mystery ... a reproducibile one, but still a mystery. My ideapad 100s has a SD card reader which I use to store stuff while I work on it, as its built-in drive is super tiny. Its really just ...
Rho Phi's user avatar
  • 319
0 votes
1 answer
636 views

Uboot boots from SD card, but can't read info from mmc

I am working on setting up a bootable SD card for a Rockchip SOQuartz CM4. I am able to build uboot for this target, write it to an SD card along with a rootfs image and kernel, load uboot, and get to ...
Chris Fernandez's user avatar
2 votes
1 answer
49 views

How to know if SD-slot is USB or actual SD-standard?

I am trying to figure out if my full size or micro size SD card slots on my Toshiba Click Mini 9l has the internals of using USB for SD card slots or if they are wired as actual SD-slots and not ...
daijo's user avatar
  • 21
1 vote
0 answers
40 views

Computer ran out of battery while formatting an MicroSD card, now card is not recognized

I bought a new Samsung 256GB Pro Endurance Micro SD Card. I wanted to format it so I could load an operating system for a Raspberry Pi. My laptop running Ubuntu 23.04 died for lack of power in the ...
Steve Cohen's user avatar
0 votes
1 answer
267 views

unreadable SD card repairing - possible?

Does it possible to mount and refresh broken SD card? i had SD card, which doesn't readable by the system. It was happened while testing process, i had write to card files 1GB value, and after about ...
ant's user avatar
  • 29
-1 votes
1 answer
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How can i delete and format sd card partitions that have file system in it?

Ok,I have steam with steam os in it sooo in a way on another i install steam os in sd card (install steam os in the sf did not end well and got file system that i can not delete or work it) and got ...
عمر جواد كاظم's user avatar
0 votes
2 answers
138 views

Are there any filesystems with builtin data repairing via checksums?

I've read that ZFS/BtrFS have a checksum check, but they don't use it for data recovery, only for recovering data from a full local copy or a mirror copy. On the other hand, RAR archives support data ...
bodqhrohro's user avatar
0 votes
0 answers
34 views

Sd card not appearing on Linux steam

I was using the Linux version of steam on my Chromebook OS but I didn't have enough space available on my local drive to download the game,I had a SD card inserted though but to my dismay I was unable ...
Hoshi kat's user avatar
1 vote
1 answer
136 views

ddrescue on SD-card: Why is the output differing but no errors given?

I'm doing a backup operation on a SD-card. This card has been used for almost 8 y with regular write operation. Chances are that it is damaged somehow. That's why I choose ddrescue to get the content. ...
Ariser's user avatar
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2 votes
1 answer
33 views

I cannot boot bananapro board possibly because of SD card layout

I managed to compile a linux distribution thanks to yocto. I have 4 different files which are : bootloader u-boot-sunxi-with-spl.bin-bananapi-2020.01-r0 kernel uImage--5.4.111-r0-bananapi-...
kemal's user avatar
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1 vote
0 answers
214 views

Is it possible to recover this LUKS-encrypted SD card?

I have a large size SD card that was encrypted with LUKS using the GNOME Disk Utility running on Ubuntu. I had some cherished photos on it. I've managed to accidentally format the SD card and wish to ...
BlandCorporation's user avatar
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0 answers
38 views

Read-Only mode for the OS - best way to make an inaccessible SD card last longer?

It's for a book navigation device for street children, using recycled laptop LCD's where the SD card would be encapsulated in cement and very difficult to change. If the bits of an SD card are not re-...
bandybabboon's user avatar
1 vote
0 answers
115 views

Failed to mount "rpool"

I was copying files from a storage drive to the SD card mounted in my Chromebook R11 (Linux Mint) when it locked up. I resorted to turning off and rebooting, my file reader no longer recognizes the SD ...
Joe Barry's user avatar
1 vote
1 answer
1k views

Raspberry Pi SD cards showing “Write protect is on”

I'm using a custom buildroot Linux kernel for Raspberry Pi, based on the Pi kernel 5.10.92 (64-bit). I've flashed this image onto micro SD cards from two different manufacturers and installed them in ...
Adam's user avatar
  • 11
0 votes
1 answer
304 views

microSD card not recognised by lsblk, errors in dmesg

I got a new Kingston 1Tb microSD card and made the mistake of putting it into my Steam deck right off rather than formatting it on my laptop first. The Steam deck format got stuck on "testing&...
junefish's user avatar
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0 answers
21 views

Replicating SD card: hangs at 99%

The goal is to replicate an SD card. Despite successfully replicating the SD card a few years ago, a recent attempt hangs at 99%, despite attempts from 2 different PCs. user@JUPITER Desktop$ date; ...
gatorback's user avatar
  • 1,384
0 votes
2 answers
525 views

unable to find or mount sd card

I have a SD card that is giving me some trouble. I followed some instructions from here https://forums.linuxmint.com/viewtopic.php?t=368230 and used the command sudo dd if=/dev/zero of=/dev/sdb bs=1M ...
Diego's user avatar
  • 63
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1 answer
362 views

9 in 4 card reader/writer doesn't read SD cards on Debian 11 Bullseye

Since my new Acer Aspire Vero laptop doesn't have an SD card slot I dug up my old Dane-Elec 9 in 4 Reader/Writer. However this seems unable to access the photos on my SD cards. Even though it works ...
guy13's user avatar
  • 45
0 votes
1 answer
81 views

Is it possible to copy a video or a different file to a linux sd card?

I am new for this platform. I am using Lichee Pi(Debian LXDE). I want to play a video. So,firt of all i need a video and video player. But my board does not support ethernet or wifi. so, i downloaded ...
SpeedyGonzales's user avatar
2 votes
0 answers
1k views

With a USB SD card reader, the SD card only shows up if it is inserted before the USB reader is inserted

I'm running Alpine Linux 3.17.0 on kernel 5.15.79-0-rpi, on a RaspberryPi Zero 2 W. I have a USB card reader, and an SD card. When I have the SD card inserted into the card reader, and then insert the ...
Joseph North's user avatar
0 votes
0 answers
93 views

Cannot get SD Card formatted as ext2 to work on MX Linux laptop

Summary I formatted a 64Ggb micro SD Card with an ext2 filesystem. After mounting and copying files to it, many files were corrupted; almost 400 out of 10,500 files. I also tried ext3 and ext4. And I ...
turtle.engr's user avatar
1 vote
1 answer
178 views

md5sum of image and sd-card partition differ

I am creating an image of an sd-card partition (dd) and eventually the checksum (md5sum) of the image and the partition are not the same. What am i doing wrong? My sd card is inserted into an external ...
Ben's user avatar
  • 13
0 votes
1 answer
110 views

Reset filesystem on boot failure

There is a single-board computer booting Debian 11 from an SD-card, and the idea is if it ever fails to boot (eg from losing power mid-write), it attempts to boot from a known-good setup (eg read-only ...
wohayx's user avatar
  • 1
1 vote
0 answers
432 views

OpenBSD 7.2 NanoPi R4S sdmmc0: can't enable card

I am facing the following issue with SD card when trying to install OpenBSD 7.2 on Nanopi R4S (Rockchip RK3399 ARM64 SoC). The same problem as previously described on OpenBSD 7.1 here. sdmmc0: can't ...
Krakonoš's user avatar
0 votes
1 answer
88 views

Is there a way to force mount a device in a different format?

sorry for the weird title, but I'm just wondering if there is a way for mount to ignore a device's filesystem format and instead, mount a device in a different format? basically, I'm asking if ...
elburg's user avatar
  • 1
1 vote
0 answers
613 views

How to use .wic files with qemu

I am trying to use qemu with the machine microchip-icicle-kit, following the instructions from https://www.qemu.org/docs/master/system/riscv/microchip-icicle-kit.html (even though it seems a bit ...
Some1's user avatar
  • 111
0 votes
0 answers
915 views

SD card shows up in dmesg, lsusb, and lswh, but not in lsblk or fdisk

Recently, my Android device has been unable to detect my SD card so I connected it to my PC (running Kubuntu) to figure out what's wrong. These are the results: dmesg correctly detects the card reader ...
Firewolf1024's user avatar
0 votes
0 answers
40 views

df claims a mounted sd card is almost full, but I can only see a few small files

I'm stumped here trying to view recordings from a car dashcam's sd card. The dashcam should've been recording continuously, and was configured to overwrite old footage with new footage. Supposedly, ...
limbic's user avatar
  • 1
0 votes
1 answer
599 views

Linux Mint 21 - problems with RealTek PCIe SD card reader

I operate an HP Envy x360 15m series laptop with an AMD processor, which has a builtin slot for Secure Digital. However, inserting cards is not noticed, not even logged in the kernel ring, when ...
brainchild's user avatar
0 votes
3 answers
1k views

MicroSD card not found at boot time, works when ejected and reinserted

I have a Jasper Lake mini PC with an Intel Micro SD card reader, running Ubuntu 22.04. If I have an SD card in the reader when I boot the machine, the card is not found, no block device is created, ...
ajh499's user avatar
  • 1
0 votes
0 answers
235 views

Boot linux live iso from multi-partitioned SD card

I have a 32Gb SD card that I want to boot a linux ISO from. I can write the image using balena, dd etc. and it works fine. However this is a bit wasteful as the ISO is a fraction of this size. I'd ...
Brongers Croste's user avatar
0 votes
1 answer
660 views

Can I boot my board from built-in emmc while the sd-card plugged in?

This is kind like a U-Boot related question. I'm not quite sure which site should I post to, but as I boot Ubuntu, I post it here. Basicly, I bought a cheap Nanopi Neo Air with Allwinner H3 SOC. I'm ...
Developer_ken's user avatar
5 votes
3 answers
5k views

Cannot format a MicroSD card

I have a SanDisk Ultra Plus 64gb MicroSd XC Card that I used to run ubuntu server on a raspbery PI. Now I have to format this card but I can not succes. I've tried many things including: Formating ...
Sera's user avatar
  • 51
3 votes
0 answers
1k views

How to install OpenBSD 7.1 on NanoPi R4S using SD card as root disk?

I would like to install OpenBSD 7.1 on the NanoPi R4S (Rockchip RK3399 ARM64 SoC). Following the instructions in INSTALL.arm64, I managed to make the NanoPi R4S boot miniroot71.img. I wrote the ...
Harald Hetzner's user avatar
0 votes
0 answers
749 views

How can i access the files in the nand flash memory through linux terminal?

I have files in the nand flash memory of my Gumstix Overo that i want to copy to a SD card, but i can't access them through the overo terminal, so i wanted to copy them through the linux terminal but ...
João Sousa's user avatar
0 votes
0 answers
402 views

how to prevent sshd related messages from being written to systemd journal log

I'm running a raspberry pi on an SD card and the logs are constantly hammered with failed login attempts from botnets. Beyond filling the logs with useless information, this is putting wear and tear ...
Al Ro's user avatar
  • 223
0 votes
1 answer
446 views

card reader falls off in linux

I have debian 11 and a MicroSd card reader built into my laptop. Device: Realtek Semiconductor RTS5129 Card Reader Controller. The problem is that it falls off after I insert the card and take it out ...
Dzhitender's user avatar
0 votes
1 answer
2k views

Why am I not able to load files from a partition with U-Boot?

For some reason, my U-Boot does not seem to be able to load files from my FAT32 partition: => mmc part Partition Map for MMC device 1 -- Partition Type: DOS Part Start Sector Num Sectors ...
MisdeBug's user avatar
0 votes
0 answers
278 views

SD card will not mount and dissapears when trying to do anything in gparted

I am using Fedora 35 and am just trying to mount an SD card but it's not working. Using lsblk I can see the device, but when I try to do anything like sudo mount /dev/mmcblk0 /mnt, I get the error ...
John Salami's user avatar
0 votes
1 answer
670 views

How can i copy data from NAND memory to sd card?

So basically, i have two Gumstix Overo and both are booting from their NAND flash memory, both devices use full linux image's Kernel. They are supposed to boot the same thing but one of them says that ...
João Sousa's user avatar
0 votes
1 answer
187 views

f3 program fails to detect sdCard but Windows can open it and play videos

Bought two sd cards 128GB for video recording. These are likely fake and one of them is clearly damaged. I formatted one of them to FAT32 using GParted, inserted in security camera to record and no ...
Luponius's user avatar
0 votes
3 answers
413 views

Why dd is giving me a different SD card than its source?

I have a 32 Gb SD card with my OS on it (Raspberry Pi OS Buster) and I wish to make a backup using standard dd, using sudo dd if=/dev/sdb of=/mnt/toshiba2tb/pi20211217.img bs=1M The source SD card ...
Rho Phi's user avatar
  • 319
0 votes
2 answers
393 views

how to backup an SD card (containig OS) that is *not* properly seen by other computers, except it works fine to boot the OS(!)

I have this RaspberryPi booting from a 32 Gb sdcard. I took it off the RPi to make a back up but the card shows as a 32 Mb single partition everywhere I plug it. On my other Raspberry it is listed as ...
Rho Phi's user avatar
  • 319
1 vote
1 answer
1k views

How to disconnect/disable MMC SD card

I have non USB MMC/SD reader slot . If a user inserts SD card, I want to be able to disconnect the SD card, or Disable the reader. (in case I detect malicious card). How can I do this? With umount, I ...
jivangilad's user avatar
0 votes
1 answer
581 views

What happens when an SD card gets connected to a Linux computer

I'm still quite confused as to how this works exactly. When we connect an SD card to a computer running a Linux system, this is my understanding (Please feel free to correct on the smallest of details ...
Engineer999's user avatar
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