|
@@ -13,7 +13,7 @@ Synopis
|
|
|
bootflow select [<num|name>]
|
|
|
bootflow info [-d]
|
|
|
bootflow boot
|
|
|
- bootflow cmdline [set|get|clear|delete] <param> [<value>]
|
|
|
+ bootflow cmdline [set|get|clear|delete|auto] <param> [<value>]
|
|
|
|
|
|
Description
|
|
|
-----------
|
|
@@ -218,6 +218,16 @@ To delete a parameter entirely, use::
|
|
|
|
|
|
bootflow cmdline delete <param>
|
|
|
|
|
|
+Automatic parameters are available in a very few cases. You can use these to
|
|
|
+add parmeters where the value is known by U-Boot. For example::
|
|
|
+
|
|
|
+ bootflow cmdline auto earlycon
|
|
|
+ bootflow cmdline auto console
|
|
|
+
|
|
|
+can be used to set the early console (or console) to a suitable value so that
|
|
|
+output appears on the serial port. This is only supported by the 16550 serial
|
|
|
+driver so far.
|
|
|
+
|
|
|
Example
|
|
|
-------
|
|
|
|
|
@@ -450,6 +460,69 @@ Here is am example using the -e flag to see all errors::
|
|
|
(21 bootflows, 2 valid)
|
|
|
U-Boot>
|
|
|
|
|
|
+Here is an example of booting ChromeOS, adjusting the console beforehand. Note that
|
|
|
+the cmdline is word-wrapped here and some parts of the command line are elided::
|
|
|
+
|
|
|
+ => bootfl list
|
|
|
+ Showing all bootflows
|
|
|
+ Seq Method State Uclass Part Name Filename
|
|
|
+ --- ----------- ------ -------- ---- ------------------------ ----------------
|
|
|
+ 0 cros ready nvme 0 5.10.153-20434-g98da1eb2c <NULL>
|
|
|
+ 1 efi ready nvme c nvme#0.blk#1.bootdev.part efi/boot/bootia32.efi
|
|
|
+ 2 efi ready usb_mass_ 2 usb_mass_storage.lun0.boo efi/boot/bootia32.efi
|
|
|
+ --- ----------- ------ -------- ---- ------------------------ ----------------
|
|
|
+ (3 bootflows, 3 valid)
|
|
|
+ => bootfl sel 0
|
|
|
+ => bootfl inf
|
|
|
+ Name: 5.10.153-20434-g98da1eb2cf9d (chrome-bot@chromeos-release-builder-us-central1-b-x32-12-xijx) #1 SMP PREEMPT Tue Jan 24 19:38:23 PST 2023
|
|
|
+ Device: nvme#0.blk#1.bootdev
|
|
|
+ Block dev: nvme#0.blk#1
|
|
|
+ Method: cros
|
|
|
+ State: ready
|
|
|
+ Partition: 0
|
|
|
+ Subdir: (none)
|
|
|
+ Filename: <NULL>
|
|
|
+ Buffer: 737a1400
|
|
|
+ Size: c47000 (12873728 bytes)
|
|
|
+ OS: ChromeOS
|
|
|
+ Cmdline: console= loglevel=7 init=/sbin/init cros_secure drm.trace=0x106
|
|
|
+ root=/dev/dm-0 rootwait ro dm_verity.error_behavior=3
|
|
|
+ dm_verity.max_bios=-1 dm_verity.dev_wait=1
|
|
|
+ dm="1 vroot none ro 1,0 6348800
|
|
|
+ verity payload=PARTUUID=799c935b-ae62-d143-8493-816fa936eef7/PARTNROFF=1
|
|
|
+ hashtree=PARTUUID=799c935b-ae62-d143-8493-816fa936eef7/PARTNROFF=1
|
|
|
+ hashstart=6348800 alg=sha256
|
|
|
+ root_hexdigest=78cc462cd45aecbcd49ca476587b4dee59aa1b00ba5ece58e2c29ec9acd914ab
|
|
|
+ salt=8dec4dc80a75dd834a9b3175c674405e15b16a253fdfe05c79394ae5fd76f66a"
|
|
|
+ noinitrd vt.global_cursor_default=0
|
|
|
+ kern_guid=799c935b-ae62-d143-8493-816fa936eef7 add_efi_memmap boot=local
|
|
|
+ noresume noswap i915.modeset=1 ramoops.ecc=1 tpm_tis.force=0
|
|
|
+ intel_pmc_core.warn_on_s0ix_failures=1 i915.enable_guc=3 i915.enable_dc=4
|
|
|
+ xdomain=0 swiotlb=65536 intel_iommu=on i915.enable_psr=1
|
|
|
+ usb-storage.quirks=13fe:6500:u
|
|
|
+ X86 setup: 742e3400
|
|
|
+ Logo: (none)
|
|
|
+ FDT: <NULL>
|
|
|
+ Error: 0
|
|
|
+ => bootflow cmdline auto earlycon
|
|
|
+ => bootflow cmd auto console
|
|
|
+ => print bootargs
|
|
|
+ bootargs=console=ttyS0,115200n8 loglevel=7 ...
|
|
|
+ usb-storage.quirks=13fe:6500:u earlycon=uart8250,mmio32,0xfe03e000,115200n8
|
|
|
+ => bootflow cmd del console
|
|
|
+ => print bootargs
|
|
|
+ bootargs=loglevel=7 ... earlycon=uart8250,mmio32,0xfe03e000,115200n8
|
|
|
+ => bootfl boot
|
|
|
+ ** Booting bootflow '5.10.153-20434-g98da1eb2cf9d (chrome-bot@chromeos-release-builder-us-central1-b-x32-12-xijx) #1 SMP PREEMPT Tue Jan 24 19:38:23 PST 2023' with cros
|
|
|
+ Kernel command line: "loglevel=7 ... earlycon=uart8250,mmio32,0xfe03e000,115200n8"
|
|
|
+
|
|
|
+ Starting kernel ...
|
|
|
+
|
|
|
+ [ 0.000000] Linux version 5.10.153-20434-g98da1eb2cf9d (chrome-bot@chromeos-release-builder-us-central1-b-x32-12-xijx) (Chromium OS 15.0_pre465103_p20220825-r4 clang version 15.0.0 (/var/tmp/portage/sys-devel/llvm-15.0_pre465103_p20220825-r4/work/llvm-15.0_pre465103_p20220825/clang db1978b67431ca3462ad8935bf662c15750b8252), LLD 15.0.0) #1 SMP PREEMPT Tue Jan 24 19:38:23 PST 2023
|
|
|
+ [ 0.000000] Command line: loglevel=7 ... usb-storage.quirks=13fe:6500:u earlycon=uart8250,mmio32,0xfe03e000,115200n8
|
|
|
+ [ 0.000000] x86/split lock detection: warning about user-space split_locks
|
|
|
+
|
|
|
+
|
|
|
|
|
|
Return value
|
|
|
------------
|