Kernel Version may mismatch

[littlelid]

When running the file post_config.sh in my board, the shell yields

++ uname -r
+ '[' -d /lib/modules/4.9.0-g0fa1a63 ']'
++ uname -r
+ echo '/lib/modules/4.9.0-g0fa1a63 already exists.'
/lib/modules/4.9.0-g0fa1a63 already exists.
+ depmod
depmod: WARNING: could not open /lib/modules/4.9.0-g0fa1a63/modules.order: No such file or directory
depmod: WARNING: could not open /lib/modules/4.9.0-g0fa1a63/modules.builtin: No such file or directory
+ modprobe mac80211
modprobe: ERROR: could not insert 'mac80211': Exec format error

So I check the kernel verison by typing uname -r:

4.9.0-g0fa1a63

Then I switch to the /lib/modules/4.9.0-g0fa1a63, and check the modinfo mac80211:

filename:       /lib/modules/4.9.0-g0fa1a63/8021q.ko
version:        1.8
license:        GPL
alias:          rtnl-link-vlan
srcversion:     8F7369A60FF4BAC87D0D0DF
depends:        
intree:         Y
name:           8021q
vermagic:       4.14.0-g4220d5d24c6c-dirty SMP preempt mod_unload modversions ARMv7 p2v8 
root@analog:/lib/modules/4.9.0-g0fa1a63# modinfo cfg80211.ko
filename:       /lib/modules/4.9.0-g0fa1a63/cfg80211.ko
alias:          net-pf-16-proto-16-family-nl80211
description:    wireless configuration support
license:        GPL
author:         Johannes Berg
depends:        
intree:         Y
name:           cfg80211
vermagic:       4.14.0-g4220d5d24c6c-dirty SMP preempt mod_unload modversions ARMv7 p2v8 
parm:           bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int)
parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm:           cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

The vermagic above indicates that the module mac80211.ko is complied with the 4.14.0-g4220d5d24c6c-dirty version of kernel, which is mismatch with the current version 4.9.0-g0fa1a63.

I believe that I stick to the README, and I have tried two ways to burn my SD-Card, using the pre-build image and self-compiled image, and both failed. So I doubt there is something wrong with the kernel version.

[JiaoXianjun]

Hi,

Which SD card image file are you using? If you use the one we mentioned in the README: https://users.ugent.be/~xjiao/openwifi-1.1.0-taiyuan-1.img.xz

When you first-time run post_config.sh, there shouldn't be a directory like: /lib/modules/4.9.0-g0fa1a63

Maybe you have some steps mistaken?

Would you please just follow the Quick start section of readme? Or would you please tell me your whole steps from scratch?

[littlelid]

Thanks for you quick response. I figure it out ! There is an uImage file in the root of BOOT partition of the SD-card. And I replaced it with the BOOT/zynq-common/uImage as described in BOOT/README:

For the zynq projects - copy target/BOOT.BIN, target/devicetree.dtb
and zynq-common/uImage to the root of the BOOT FAT32 partition.

The solution is just not to replace the uImage. Maybe you need to particularly point it out.

[JiaoXianjun]

That BOOT/READMEis from analog devices not from us. But good to mention this potential issue, or we just remove the original README.

Thanks for the advice.

I close this issue.