fastboot: error: boot partition is smaller than boot image

[Ruinland]

Hi,

I just build the AOSP with main_2023_7_7 tagged manifest.
Following the instructions, I can flash most of the partitions with their corresponding images without problems.

Yet while flashing boot partition, it gives out the error :

fastboot: error: boot partition is smaller than boot image

And on the console, I can witness the flashing process slipped :

Flashing Raw Image
........ wrote 8388608 bytes to 'bootpart_a'
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
Starting download of 33554432 bytes
request 00000000fbb4e180 was not queued to ep1in-bulk
..........................................................................
..........................................................................
..........................................................................
..................................
downloading of 33554432 bytes finished
request 00000000fbb4e180 was not queued to ep1in-bulk
cmd_parameter: vendor_boot_a, imagesize: 33554432
Flashing Raw Image
........ wrote 33554432 bytes to 'vendor_boot_a'
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
Starting download of 117436592 bytes
request 00000000fbb4e180 was not queued to ep1in-bulk
..........................................................................
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..........................................................................
..........................................................................
..........................................................................
..........................................................................
..........................................................................
..........................................................................
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..........................................................................
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.......
downloading of 117436592 bytes finished
request 00000000fbb4e180 was not queued to ep1in-bulk
cmd_parameter: super, imagesize: 117436592
Flashing sparse image at offset 462848
Flashing Sparse Image
........ wrote 117456896 bytes to 'super'

Besides, during the first round of U-boot flash-and-reboot, I saw GPT table was written :

U-Boot 2020.01-g7794d97f84-dirty (Aug 05 2023 - 04:03:55 +0800)

CPU:   rv64imafdcvsu
Model: T-HEAD c910 light
DRAM:  4 GiB
C910 CPU FREQ: 750MHz
AHB2_CPUSYS_HCLK FREQ: 250MHz
AHB3_CPUSYS_PCLK FREQ: 125MHz
PERISYS_AHB_HCLK FREQ: 250MHz
PERISYS_APB_PCLK FREQ: 62MHz
GMAC PLL POSTDIV FREQ: 1000MHZ
DPU0 PLL POSTDIV FREQ: 1188MHZ
DPU1 PLL POSTDIV FREQ: 1188MHZ
MMC:   sdhci@ffe7080000: 0, sd@ffe7090000: 1
Loading Environment from MMC... OK
Error reading output register
Warning: cannot get lcd-en GPIO
LCD panel cannot be found : -121
splash screen startup cost 13 ms
In:    serial
Out:   serial
Err:   serial
## Resetting to default environment
ethaddr=76:1b:b2:01:f2:0b
eth1addr=76:1b:b2:01:f2:0c
Saving Environment to MMC... Writing to MMC(0)... OK
Writing GPT: success!
dwc3_gadget_start maximum_speed:5 revision:0x5533330b
dwc3_gadget_start DWC3_DCFG:0x80804
dwc3_gadget_conndone_interrupt speed:4 dwc3_dsts:0x2021c
dwc3_gadget_conndone_interrupt speed:4 dwc3_dsts:0x2593c
Writing GPT: success!
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
request 00000000fbb4e180 was not queued to ep1in-bulk
Starting download of 1032184 bytes
request 00000000fbb4e180 was not queued to ep1in-bulk
.......

Thus I am wondering shall I tweak the GPT table / size on the U-boot side ?
The boot.img I generated from the AOSP is around 32/33 megabytes :

[ruinland-x1c beaglev_ahead]# ls -la ./boot.img 
-rwxrwxrwx 1 ruinland ruinland 33554432 Mar 11 11:32 ./boot.img