我在这里注意到有关固件的两件事：
1. apt 列表 linux-firmware
https://launchpad.net/ubuntu/+source/linux-firmware
$ apt list linux-firmware -a
Listing... Done
linux-firmware/focal-updates,focal-updates 1.187.17 all [upgradable from: 1.187.16]
linux-firmware/now 1.187.16 all [installed,upgradable to: 1.187.17]
linux-firmware/focal,focal 1.187 all
2. fwupdmgr
https://wiki.archlinux.org/title/Fwupd
https://github.com/fwupd/fwupd
https://fwupd.org/lvfs/docs/users
$ fwupdmgr get-updates
Devices with no available firmware updates:
• KIOXIA-EXCERIA PLUS SSD
• UEFI Device Firmware
• UEFI Device Firmware
• UEFI dbx
Devices with the latest available firmware version:
• Thunderbolt host controller
• Embedded Controller
• Prometheus
• System Firmware
• UEFI Device Firmware
No updates available for remaining devices
$ fwupdmgr get-releases
Choose a device:
0. Cancel
1. 0dc2af238bee6aba3964d974a6ca6e967f3d78fb (Thunderbolt host controller)
2. d4db94d2324ae6986698e7489b234c0377fd8465 (Embedded Controller)
3. d432baa2162a32c1554ef24bd8281953b9d07c11 (Prometheus)
4. 09647b198775f1868cc695ec2685477e0964c323 (System Firmware)
5. 317fd9ef3f069f67047ab1163f8c040c3853cc38 (UEFI Device Firmware)
他们是否在做（安装/更新固件）同样的事情（从不同的更新源）？
答案1
通过一段时间的使用和探索，得出这个结论。//
感受和总结，不是100%确定
人们可能会fwupd与linux-firmware包混淆：
fwupd工具管理固件，当您进行更新/刷新时，它将刷新到外围 SoC。linux-firmware每次系统启动时，软件包更新 blob 都会加载到外围 SoC RAM 中