Public bug reported:
This is a follow-on from LP: #2155094 and I'm re-attaching the serial
log output from that bug. The Pi Zero 2W in this case boots successfully
under kernel 7.0.0 rev 1009, but when trying to boot rev 1011 the rootfs
doesn't appear and the system falls back to rev 1009. Relevant portion
of the attached log:
[ 0.495248] mmc0: host does not support reading read-only switch, assuming
write-enable
[ 0.495302] PM: genpd: Disabling unused power domains
[ 0.497446] Disabling rootwait; root= is invalid.
[ 0.498905] /dev/root: Can't open blockdev
[ 0.499808] VFS: Cannot open root device "LABEL=writable" or
unknown-block(0,0): error -6
[ 0.501568] Please append a correct "root=" boot option; here are the
available partitions:
[ 0.503467] List of all bdev filesystems:
[ 0.503553] mmc0: new high speed SDXC card at address 5048
[ 0.504435] ext3
[ 0.505402] ext2
[ 0.506422] ext4
[ 0.507347] squashfs
[ 0.508242] vfat
[ 0.509151]
[ 0.510958] Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)
[ 2.014089] CPU: 3 UID: 0 PID: 1 Comm: swapper/0 Not tainted
7.0.0-1011-raspi #11-Ubuntu PREEMPT(lazy>
[ 2.023485] Hardware name: Raspberry Pi Zero 2 W Rev 1.0 (DT)
** Affects: linux-raspi (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "screenlog.0.v2"
https://bugs.launchpad.net/bugs/2157789/+attachment/5978420/+files/screenlog.0.v2
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https://bugs.launchpad.net/bugs/2157789
Title:
Kernel 1011 failing to mount rootfs
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