Howdy!

Its a long shot, but are you also using WSL2 on the Windows 10 Host?
In that case, downloads into a VirtualBox VM can be corrupted, see
https://www.virtualbox.org/ticket/19695

Greetz

Am Mi., 26. Aug. 2020 um 08:41 Uhr schrieb Brendan Simon (SEPL)
<[email protected]>:
>
> Hi Erik,
>
> Nope.  It's ot a HTML file.  It is (they are) archives with a 
> files/directories for m4 sources.
>
> $ find -name "m4*"
> ./m4-1.4.18.tar.gz_bad-checksum_6a1537c79ea613aa70849d8f1f7eeb5a5dbbea3a9527d4aea33a1c8a88e80b9c
> ./m4-1.4.18.tar.gz_bad-checksum_e64407f9097a607b4463e0c82d898c19b0a3bfd2199d30337b5464d8b416e59c
> ./m4-1.4.18.tar.gz_bad-checksum_d8a6ce0c8a97f9f13af9d15d72e4e398daf24ceba4afa4c6925314c39bd81206
> ./m4-1.4.18.tar.gz_bad-checksum_b295109d6ddd3c387b794fb6e4b4dfe31d42991a6a537bd92b1a385c2ed3b616
>
> $ find -name "m4*" | xargs file
> ./m4-1.4.18.tar.gz_bad-checksum_6a1537c79ea613aa70849d8f1f7eeb5a5dbbea3a9527d4aea33a1c8a88e80b9c:
>  gzip compressed data, max compression, from Unix, original size 9789440
> ./m4-1.4.18.tar.gz_bad-checksum_e64407f9097a607b4463e0c82d898c19b0a3bfd2199d30337b5464d8b416e59c:
>  gzip compressed data, max compression, from Unix, original size 9789440
> ./m4-1.4.18.tar.gz_bad-checksum_d8a6ce0c8a97f9f13af9d15d72e4e398daf24ceba4afa4c6925314c39bd81206:
>  gzip compressed data, max compression, from Unix, original size 9789440
> ./m4-1.4.18.tar.gz_bad-checksum_b295109d6ddd3c387b794fb6e4b4dfe31d42991a6a537bd92b1a385c2ed3b616:
>  gzip compressed data, max compression, from Unix, original size 9789440
>
> $ tar ztvf 
> m4-1.4.18.tar.gz_bad-checksum_6a1537c79ea613aa70849d8f1f7eeb5a5dbbea3a9527d4aea33a1c8a88e80b9c
>  | head
> drwxrwxr-x 0/0               0 2016-12-31 17:37 m4-1.4.18/
> -rw-rw-r-- 0/0          195907 2016-12-31 17:00 m4-1.4.18/ChangeLog-2014
> -rw-rw-r-- 0/0           63687 2016-12-31 16:34 m4-1.4.18/maint.mk
> -rw-rw-r-- 0/0            3912 2016-12-31 17:37 m4-1.4.18/ChangeLog
> -rw-rw-r-- 0/0           69156 2016-12-31 17:25 m4-1.4.18/aclocal.m4
> -rw-rw-r-- 0/0            2590 2016-12-29 15:32 m4-1.4.18/BACKLOG
> drwxrwxr-x 0/0               0 2016-12-31 17:37 m4-1.4.18/tests/
> -rw-rw-r-- 0/0            3126 2016-12-31 08:54 m4-1.4.18/tests/getcwd-lgpl.c
> -rw-rw-r-- 0/0            6134 2016-12-31 08:54 m4-1.4.18/tests/test-dup2.c
> -rw-rw-r-- 0/0            4998 2016-12-31 08:54 
> m4-1.4.18/tests/test-dup-safer.c
>
> Brendan.
>
> --
>
>
> On 26/08/2020 4:22 pm, Erik Botö wrote:
>
> Hi Brendan,
>
> Could you inspect the file in
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/build/downloads/m4-1.4.18.tar.gz
> to see if it is some kind of HTML file stating a download error?
>
> Check the file size, if it's small it's probably an error so open it
> using an editor to see if you get any hints. Many corporate networks
> will require the use of a proxy server, see e.g.
> https://wiki.yoctoproject.org/wiki/Working_Behind_a_Network_Proxy for
> hints on that.
>
> Cheers,
> Erik
>
> On Wed, Aug 26, 2020 at 7:36 AM Brendan Simon (SEPL)
> <[email protected]> wrote:
>
> Hi,
>
> I'm new to Yocto and am trying to follow the quick start guide to get up and 
> running with poky.  I'm using the latest Dunfel 3.1.2.
>
> I'm running Debian 10 Buster in a VirtualBox VM (guest), on a Windows 10 Pro 
> (host).
>
> I'm having trouble with the build fetching files and getting checksum 
> mismatch, however if I download the troublesome file with wget then the 
> checksum is correct.
>
> How do I fix this?
>
> Everything seems very complex with Yocto, but maybe that's because I'm new to 
> it.
>
>
> $ time bitbake core-image-sato
> Loading cache: 100% 
> |###############################################################################|
>  Time: 0:00:01Loaded 1312 entries from dependency cache.
> NOTE: Resolving any missing task queue dependencies
>
> Build Configuration:
> BB_VERSION           = "1.46.0"
> BUILD_SYS            = "x86_64-linux"
> NATIVELSBSTRING      = "universal"
> TARGET_SYS           = "x86_64-poky-linux"
> MACHINE              = "qemux86-64"
> DISTRO               = "poky"
> DISTRO_VERSION       = "3.1.2"
> TUNE_FEATURES        = "m64 core2"
> TARGET_FPU           = ""
> meta
> meta-poky
> meta-yocto-bsp       = 
> "my-yocto-3.1.2:569b1f5d67c57de957e243997c53ec2f81dc8dfe"
>
> Initialising tasks: 100% 
> |##########################################################################| 
> Time: 0:00:09Checking sstate mirror object availability: 100% 
> |##################################################| Time: 0:36:41Sstate 
> summary: Wanted 2547 Found 0 Missed 2547 Current 228 (0% match, 8% complete)
> NOTE: Executing Tasks
> WARNING: m4-native-1.4.18-r0 do_fetch: Checksum mismatch for local file 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/build/downloads/m4-1.4.18.tar.gz
> Cleaning and trying again.
> WARNING: m4-native-1.4.18-r0 do_fetch: Renaming 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/build/downloads/m4-1.4.18.tar.gz
>  to 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/build/downloads/m4-1.4.18.tar.gz_bad-checksum_e64407f9097a607b4463e0c82d898c19b0a3bfd2199d30337b5464d8b416e59c
> WARNING: m4-native-1.4.18-r0 do_fetch: Checksum failure encountered with 
> download of https://ftp.gnu.org/gnu/m4/m4-1.4.18.tar.gz - will attempt other 
> sources if available
> WARNING: m4-native-1.4.18-r0 do_fetch: Checksum mismatch for local file 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/build/downloads/m4-1.4.18.tar.gz
> Cleaning and trying again.
> WARNING: m4-native-1.4.18-r0 do_fetch: Renaming 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/build/downloads/m4-1.4.18.tar.gz
>  to 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/build/downloads/m4-1.4.18.tar.gz_bad-checksum_6a1537c79ea613aa70849d8f1f7eeb5a5dbbea3a9527d4aea33a1c8a88e80b9c
> ERROR: m4-native-1.4.18-r0 do_fetch: Checksum failure fetching 
> https://ftp.gnu.org/gnu/m4/m4-1.4.18.tar.gz
> ERROR: m4-native-1.4.18-r0 do_fetch: Fetcher failure for URL: 
> 'https://ftp.gnu.org/gnu/m4/m4-1.4.18.tar.gz'. Checksum mismatch!
> File: 
> '/home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/build/downloads/m4-1.4.18.tar.gz'
>  has md5 checksum 6a289f7da1478d63683eb4ad976c3c99 when 
> a077779db287adf4e12a035029002d28 was expected
> File: 
> '/home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/build/downloads/m4-1.4.18.tar.gz'
>  has sha256 checksum 
> 6a1537c79ea613aa70849d8f1f7eeb5a5dbbea3a9527d4aea33a1c8a88e80b9c when 
> ab2633921a5cd38e48797bf5521ad259bdc4b979078034a3b790d7fec5493fab was expected
> If this change is expected (e.g. you have upgraded to a new version without 
> updating the checksums) then you can use these lines within the recipe:
> SRC_URI[sha256sum] = 
> "6a1537c79ea613aa70849d8f1f7eeb5a5dbbea3a9527d4aea33a1c8a88e80b9c"
> Otherwise you should retry the download and/or check with upstream to 
> determine if the file has become corrupted or--- Starting bitbake server pid 
> 6121 at 2020-08-25 19:29:32.273325 ---
> Started bitbake server pid 6121
> DEBUG: BBCooker starting 1598398172.2817702
> DEBUG: BBCooker pyinotify1 1598398172.2922668
> DEBUG: BBCooker pyinotify2 1598398172.2926114
> DEBUG: BBCooker pyinotify3 1598398172.2971811
> DEBUG: BBCooker pyinotify complete 1598398172.2975075
> DEBUG: Found bblayers.conf 
> (/home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/build/conf/bblayers.conf)
> DEBUG: Adding layer 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/meta
> DEBUG: Adding layer 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/meta-poky
> DEBUG: Adding layer 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/meta-yocto-bsp
> DEBUG: CONF 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/meta/conf/bitbake.conf:755:
>  including conf/abi_version.conf
> DEBUG: CONF 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/meta/conf/bitbake.conf:756:
>  including conf/site.conf
> DEBUG: CONF file 'conf/site.conf' not found
> DEBUG: CONF 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/meta/conf/bitbake.conf:757:
>  including conf/auto.conf
> DEBUG: CONF file 'conf/auto.conf' not found
> DEBUG: CONF 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/meta/conf/bitbake.conf:758:
>  including conf/local.conf
> DEBUG: CONF 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/meta/conf/bitbake.conf:759:
>  including conf/multiconfig/default.conf
> DEBUG: CONF 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/meta/conf/bitbake.conf:760:
>  including conf/mach...skipping...
>  otherwise unexpectedly modified.
> ERROR: Logfile of failure stored in: 
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/build/tmp/work/x86_64-linux/m4-native/1.4.18-r0/temp/log.do_fetch.10440
> ERROR: Task 
> (/home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/meta/recipes-devtools/m4/m4-native_1.4.18.bb:do_fetch)
>  failed with exit code '1'
> NOTE: Tasks Summary: Attempted 17 tasks of which 16 didn't need to be rerun 
> and 1 failed.
>
> Summary: 1 task failed:
>   
> /home/brendan/SEPL/Projects/Erntec/PMU/yocto_trial/poky/meta/recipes-devtools/m4/m4-native_1.4.18.bb:do_fetch
> Summary: There were 5 WARNING messages shown.
> Summary: There were 2 ERROR messages shown, returning a non-zero exit code.
>
> real    37m7.174s
> user    0m2.521s
> sys     0m1.431s
>
>
> Thanks,
> Brendan.
>
>
>
> 
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