Dear Linux folks,
On the Google Chromebook Dell Latitude 5400 Chrome (google/sarien with
Dell’s Wilco EC), enabling developer mode, and flashing a working
TianoCore into the firmware’s RW_LEGACY region using MrChromebox’ Chrome
OS Firmware Utility Script [1], booting a Ubuntu GNU/Linux 21.10 live
system from USB, Linux 5.13 show the error below.
```
[ 0.000000] microcode: microcode updated early to revision 0xea, date
= 2021-01-05
[ 0.000000] Linux version 5.13.0-19-generic (buildd@lgw01-amd64-013)
(gcc (Ubuntu 11.2.0-7ubuntu2) 11.2.0, GNU ld (GNU Binutils for Ubuntu)
2.37) #19-Ubuntu SMP Thu Oct 7 21:58:00 UTC 2021 (Ubuntu
5.13.0-19.19-generic 5.13.14)
[…]
[ 0.000000] DMI: Dell Inc. Sarien/Sarien, BIOS
Google_Sarien.12200.155.0 07/29/2020
[…]
[ 1.521172] cros_ec_lpcs cros_ec_lpcs.0: couldn't reserve memmap region
[ 1.521213] cros_ec_lpcs: probe of cros_ec_lpcs.0 failed with error -16
[ 1.524915] rtc-wilco-ec rtc-wilco-ec.2.auto: registered as rtc1
[…]
```
Kind regards,
Paul