Public bug reported:
in ubuntu 24.04 , emmc related modules is default available in
initramsfs
user@localhost:~$ sudo lsinitramfs /boot/initrd.img-6.17.0-14-generic | grep
-Ei '(mmc_block|mmc_core|cqhci|sdhci).*.ko'
usr/lib/modules/6.17.0-14-generic/kernel/drivers/mmc/core/mmc_block.ko.zst
usr/lib/modules/6.17.0-14-generic/kernel/drivers/mmc/host/cqhci.ko.zst
usr/lib/modules/6.17.0-14-generic/kernel/drivers/mmc/host/sdhci-acpi.ko.zst
usr/lib/modules/6.17.0-14-generic/kernel/drivers/mmc/host/sdhci-pci.ko.zst
usr/lib/modules/6.17.0-14-generic/kernel/drivers/mmc/host/sdhci-pltfm.ko.zst
usr/lib/modules/6.17.0-14-generic/kernel/drivers/mmc/host/sdhci-uhs2.ko.zst
usr/lib/modules/6.17.0-14-generic/kernel/drivers/mmc/host/sdhci-xenon-driver.ko.zst
usr/lib/modules/6.17.0-14-generic/kernel/drivers/mmc/host/sdhci.ko.zst
usr/lib/modules/6.17.0-14-generic/kernel/drivers/mmc/host/sdhci_f_sdh30.ko.zst
In ubuntu 26.04, emmc related modules is not available in initramfs
user@localhost:~$ sudo lsinitramfs /boot/initrd.img-6.18.0-9-generic | grep
-Ei '(mmc_block|mmc_core|cqhci|sdhci).*.ko'
user@localhost:~$ echo $?
1
The missing emmc modules in initramfs unfortunately lead to disk image
of ubuntu26.04 failed to boot in emmc.
user@localhost:~$ lsb_release -rd
Description: Ubuntu Resolute Raccoon (development branch)
Release: 26.04
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2143030
Title:
U26.04 initramfs missing emmc modules
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