fstools: x86_64: after restart mount of root is read only

Package Name

fstools

Maintainer

@blogic

OpenWrt Version

r28597-0425664679

OpenWrt Target/Subtarget

x86/64

Steps to Reproduce

1. restart device.

Actual Behaviour

cat grub.cfg

serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1 --rtscts=off
terminal_input console serial; terminal_output console serial

set default="0"
set timeout="5"
search -l kernel -s root

menuentry "OpenWrt" {
	linux /boot/vmlinuz root=PARTUUID=e9bad6fa-7d1c-4dd0-c46b-4b84e666df02 rootwait  console=tty1 console=ttyS0,115200n8 noinitrd
}
menuentry "OpenWrt (failsafe)" {
	linux /boot/vmlinuz failsafe=true root=PARTUUID=e9bad6fa-7d1c-4dd0-c46b-4b84e666df02 rootwait  console=tty1 console=ttyS0,115200n8 noinitrd
}

blkid:

/dev/sda2: LABEL="rootfs" UUID="ff313567-e9f1-5a5d-9895-3ba130b4a864" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="e9bad6fa-7d1c-4dd0-c46b-4b84e666df02"

line of fstab that is not applied:

config mount
	option target '/'
	option uuid 'ff313567-e9f1-5a5d-9895-3ba130b4a864'
	option enabled '1'
	option options 'rw,noatime,commit=15'

[ 5.180332] EXT4-fs (sda2): mounted filesystem ff313567-e9f1-5a5d-9895-3ba130b4a864 ro with ordered data mode. Quota mode: disabled.
[ 10.144736] EXT4-fs (sda2): re-mounted ff313567-e9f1-5a5d-9895-3ba130b4a864 r/w. Quota mode: disabled.
[ 10.595226] EXT4-fs (sda2): re-mounted ff313567-e9f1-5a5d-9895-3ba130b4a864 ro. Quota mode: disabled

See full dmesg and fstab in attach

dm_out.txt
fstab.txt

Confirmation Checklist

• The package is maintained in this repository.
• I understand that issues related to the base OpenWrt repository or LuCI repository will be closed.
• I am reporting an issue for OpenWrt, not an unsupported fork.

Start by reviewing the attached fstab.txt and dm_out.txt, then compare the GRUB root=PARTUUID setting with the fstab UUID and the reported mount/remount sequence. Trace why the root filesystem changes from read/write back to read-only after restart. Done means identifying a reproducible cause and confirming a correction for the read-only root mount.