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Pogoplug V4 can't boot off Verbatim SD card

Posted by rsantag 
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rsantag
Pogoplug V4 can't boot off Verbatim SD card
November 03, 2021 05:42PM
I'm trying to create a bootable image on a Verbatim SD card (actually, microSD + adapter). I've done this dozens of times with PNY, SD cards, PNY microSD cards and Sandisk microSD cards, but I'm having no luck with a couple of Verbatim cards. All cards are 16GB.

I partition the disk, create the file system, label the partition "rootfs" and extract everything from a tar file. If I mount it on another system, file system looks fine. But when I try to boot on the PogoPlug, I receive one of the following errors (note: USB and IDE entries removed for brevity)

Verbatim Card #1
Quote

MMC rescan: current device # 0 initialized OK
<snip>
Loading envs from mmc 0...
** ext2fs_devread() read error **
** File not found /boot/uEnv.txt **
<snip>
MMC rescan: current device # 0 initialized OK
device mmc 0:1
** ext2fs_devread() read error **
** File not found /boot/uImage **

Verbatim Card #2
Quote

MMC rescan: current device # 0 initialized OK
<snip>
Loading envs from mmc 0...
** No partition table - mmc 0 **
<snip>
Scan device mmc
mmc_init: -95, time 3198
device mmc 0:1
** No partition table - mmc 0 **

With a PNY microSD card, all works fine:
Quote

MMC rescan: current device # 0 initialized OK
<snip>
Loading envs from mmc 0...
44 bytes read in 21 ms (2 KiB/s)
... envs loaded
importing envs ...
<snip>
Scan device mmc

MMC rescan: current device # 0 initialized OK
device mmc 0:1
1 bytes read in 21 ms (0 Bytes/s)
Found bootable drive on mmc 0
loading uImage ...
5524320 bytes read in 155 ms (34 MiB/s)
loading uInitrd ...
7813499 bytes read in 197 ms (37.8 MiB/s)
loading DTB /boot/dts/kirkwood-pogoplug_v4.dtb ...
9962 bytes read in 57 ms (169.9 KiB/s)
## Booting kernel from Legacy Image at 00800000 ...
Image Name: Linux-5.8.3-kirkwood-tld-1
Created: 2020-12-06 20:10:01 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 5524256 Bytes = 5.3 MiB
Load Address: 00008000
Entry Point: 00008000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 01100000 ...
Image Name: initramfs-5.8.3-kirkwood-tld-1
Created: 2020-12-06 20:10:14 UTC
Image Type: ARM Linux RAMDisk Image (gzip compressed)
Data Size: 7813435 Bytes = 7.5 MiB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
## Flattened Device Tree blob at 01c00000
Booting using the fdt blob at 0x1c00000

Has anybody else run into this with Verbatim cards?
Did I maybe just get a bad batch? The weird thing is
I can mount and read the file system fine on another
Pogoplug using a USB SD-card reader.
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rsantag
Re: Pogoplug V4 can't boot off Verbatim SD card
November 03, 2021 06:58PM
Note that, since it can't boot off the SD card, it boots up the old Cloud Engines environment, which then mounts the SD card with no problem.

Quote

root@PogoplugMobile:~# df
Filesystem 1K-blocks Used Available Use% Mounted on
ubi0:rootfs 99432 11768 87664 12% /
none 59312 8 59304 0% /tmp
/tmp/.cemnt/mmcblk0p1
7659144 1725368 5544708 24% /tmp/.cemnt/mnt_mmcblk0p1
root@PogoplugMobile:~# cd /tmp/.cemnt/mnt_mmcblk0p1/
root@PogoplugMobile:/tmp/.cemnt/mnt_mmcblk0p1# ls -al
drwxr-xr-x 22 root root 4096 Aug 24 2020 .
drwxr-xr-x 3 root root 100 Nov 3 23:52 ..
drwxr-xr-x 2 root root 4096 Nov 3 23:54 .cedata
-rw-r--r-- 1 root root 61 Jan 1 1970 .ceid
drwxr-xr-x 2 root root 4096 Aug 23 2020 bin
drwxr-xr-x 3 root root 4096 Dec 6 2020 boot
drwxr-xr-x 5 root root 4096 Feb 24 2012 dev
drwxr-xr-x 73 root root 4096 Nov 3 21:07 etc
drwxr-xr-x 2 root root 4096 Sep 18 2020 home
drwxr-xr-x 14 root root 4096 Aug 23 2020 lib
drwx------ 2 root root 16384 Feb 24 2012 lost+found
drwxr-xr-x 2 root root 4096 Feb 24 2012 media
drwxr-xr-x 2 root root 4096 Feb 10 2015 mnt
drwxr-xr-x 3 root root 4096 Aug 23 2020 opt
drwxr-xr-x 2 root root 4096 Jan 22 2012 proc
drwx------ 5 root root 4096 Sep 18 2020 root
drwxr-xr-x 2 root root 4096 Feb 8 2013 run
drwxr-xr-x 2 root root 4096 Mar 30 2021 sbin
drwxr-xr-x 2 root root 4096 Feb 24 2012 srv
-rw------- 1 root root 268435456 Aug 24 2020 swapfile
drwxr-xr-x 2 root root 4096 Jan 1 2011 sys
drwxrwxrwt 2 root root 4096 Nov 3 21:06 tmp
drwxr-xr-x 10 root root 4096 Feb 24 2012 usr
drwxr-xr-x 12 root root 4096 Aug 23 2020 var
root@PogoplugMobile:/tmp/.cemnt/mnt_mmcblk0p1#
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bodhi
Re: Pogoplug V4 can't boot off Verbatim SD card
November 03, 2021 10:16PM
rsantag,

First, remember to always post the u-boot banner so I know which version you are running. I assumeit is the latest, u-boot-2017.07-tld-1?

And yes, it sounds like issue about u-boot dealing with microSD adapters.

Quote

With a PNY microSD card, all works fine:

Does it have a different adapter? or are you using the same adapter for this PNY and Verbatim? if it is different, then use that adapter to see if you can boot.

Linux has a better driver (more quirks have been found and incorporated), for u-boot there are still cases when we can not boot with a specific microSD adapter. From time to time, I still found a Sandisk or Transcend adapter that does not work.

-bodhi
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