On 9/19/21 11:14 PM, loushanguan2...@sina.com wrote:
i start bullseye installer from usb stick
it tells me to insert usb stick containing firmwarei fail in this step many 
times
after many failures, i learn that firmware shall be in vfat partition, not 
ext4and i have to remove installer stick so that installer can read firmware 
stickthough i have many usb ports

after firmware are successfully loaded and after some stepsinstaller complains 
it can't read installer stickno matter how quickly i insert installer stick 
after loading firmware
is there some usb command that can help after i remove and insert installer 
stick?

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You need two USB sticks -- one with the Debian installer and another with the firmware.


I assume that you have successfully copied a Debian installer ISO image onto a USB stick. Do not remove the Debian installer USB stick until prompted to do so at the end of installation.


The firmware stick should be "factory formatted" with VFAT (e.g. Microsoft):

2021-09-20 00:05:18 root@dipsy ~
# lsblk -f /dev/sdb
NAME FSTYPE LABEL UUID FSAVAIL FSUSE% MOUNTPOINT
sdb
`-sdb1 vfat ****-**** 58.3G 0% /media/dpchrist/****-****


Copy the firmware *.deb files to the root directory of the firmware USB stick:

2021-09-20 00:05:19 root@dipsy ~
# ls /media/dpchrist/****-****/*.deb | head
/media/dpchrist/****-****/amd64-microcode_3.20181128.1_amd64.deb
/media/dpchrist/****-****/amd64-microcode_3.20181128.1_i386.deb
/media/dpchrist/****-****/atmel-firmware_1.3-4_all.deb
/media/dpchrist/****-****/bluez-firmware_1.2-4_all.deb
/media/dpchrist/****-****/dahdi-firmware-nonfree_2.11.1.0.20170917-1_all.deb
/media/dpchrist/****-****/firmware-amd-graphics_20190114-2_all.deb
/media/dpchrist/****-****/firmware-ath9k-htc_1.4.0-97-g75b3e59+dfsg-3_all.deb
/media/dpchrist/****-****/firmware-atheros_20190114-2_all.deb
/media/dpchrist/****-****/firmware-b43-installer_019-4+deb10u1_all.deb
/media/dpchrist/****-****/firmware-b43legacy-installer_019-4+deb10u1_all.deb


Insert the firmware USB stick when prompted. Then press <Enter>. I find the user interface confusing at this point -- it should indicate that firmware has been loaded, but instead prompts for a firmware USB stick again. I guess that is so you can insert multiple firmware USB sticks (?). Remove the USB firmware stick and choose the option that you do not want to load firmware. The installer should apply the firmware and proceed with the install.


David

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