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Merge pull request #124 from andrum99/patch-1

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rpi-eeprom-update: mention Pi4 only, remove references to SD card
This commit is contained in:
Tim Gover
2020-05-12 15:07:31 +01:00
committed by GitHub
parent c2ce7f8488 bbffc1a9fc
commit 3f9a0eb201
1 changed files with 7 additions and 5 deletions
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rpi-eeprom-update
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@@ -306,11 +306,13 @@ usage() {
cat <<EOF
rpi-eeprom-update [options]... [FILE]
Checks whether the Raspberry Pi bootloader and the VL805 USB controller
Bootloader EEPROM update tool for the Raspberry Pi 4.
Checks whether the Raspberry Pi 4 bootloader and the VL805 USB controller
EEPROMs are up-to-date and optionally updates the EEPROMs at the next reboot.
The default update mechanism writes recovery.bin and the EEPROM update
image(s) (pieeprom.upd and vl805.bin) to the boot partition on the sd-card.
image(s) (pieeprom.upd and vl805.bin) to the boot partition.
The SHA256 hash of the corresponding images are written to pieeprom.sig
and/or vl805.sig. This guards against file system corruption which could
cause the EEPROM to be flashed with an invalid image. This is not a
@@ -321,8 +323,8 @@ If the update was successful recovery.bin renames itself to recovery.000
to prevent it from running a second time then resets the system.
The system should then boot normally.
If /boot does not correspond to the boot partition on the sd-card and this
is not a NOOBS system then the mount point for BOOTFS should be defined
If /boot does not correspond to the boot partition and this
is not a NOOBS system, then the mount point for BOOTFS should be defined
in /etc/default/rpi-eeprom-update by defining the BOOTFS variable.
A backup of the current EEPROM config file is written to ${FIRMWARE_BACKUP_DIR}
@@ -359,7 +361,7 @@ USE_FLASHROM
The flashrom update mechanism may be enabled by setting USE_FLASHROM=1. This
also selects the vl805 tool instead of using recovery.bin to perform the
update. This may be desirable if an immediate update is required or if an
sd-card is not present.
SD card is not present.
However, this not recommended because the SPI pins are muxed with audio and other
device drivers may be using SPI (e.g. HATs). This is also not safe in the
event of a power failure during the update of the EEPROM.