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Bug 601444 - sys-kernel/genkernel-next-64: boot from USB SSD requires uas module
Summary: sys-kernel/genkernel-next-64: boot from USB SSD requires uas module
Alias: None
Product: Gentoo Hosted Projects
Classification: Unclassified
Component: genkernel-next (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Ettore Di Giacinto (RETIRED)
Depends on:
Reported: 2016-12-02 12:35 UTC by Morton Pellung
Modified: 2020-08-20 12:51 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Morton Pellung 2016-12-02 12:35:44 UTC
When using genkernel-next-64 for booting the identical system from
a) external USB 3.0 mechanical harddisk
b) external USB 3.0 SSD (tested with Samsung T3 SSD)
only a) works.

After countless reboots I found the reason: genkernel-next does not include
the kernel module "uas" in the initramfs by default, only usb-storage.
Missing that the SSD is listed on the USB bus (lsusb) but no /dev/sdX
is created for it, consequently he does not find the root partition
and fails.

Inclusion of "uas" module in the initramfs makes boot from a USB SSD work.
Comment 1 Michał Górny archtester Gentoo Infrastructure gentoo-dev Security 2020-08-20 12:51:02 UTC
Package removed.