I use ArchLinux on Raspberry Pi B+. If I reboot it using shutdown -r, I always get readonly filesystem after reboot and I have to remoung it using sudo mount -o remount,rw /. Isn't shutdown -r graceful reboot regarding to filesystems? The version is Linux computer001 3.18.3-3-ARCH #1 PREEMPT Mon Jan 26 20:10:28 MST 2015 armv6l GNU/Linux.

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    You should have a look in your logs and see if there's some explanation there. I've noticed some inconsistencies WRT to shutdown/reboot behaviour following firmware upgrades, although not this specifically. – goldilocks Jan 28 '15 at 17:31
  • @goldilocks, I haven't found anything relevant regarding filesystem. – KernelPanic Jan 28 '15 at 18:28

In /boot/cmdline.txt, add rw just before rootwait

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    Thanks, it solved my problem. But why wasn't it necessary before? – bortzmeyer Mar 18 '15 at 20:00
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    This also fixed my problem. I got this issue after updating Raspbian from Wheezy to Jessie. Jessie moved me over to systemd, so I suspect there was something at boot that had previously remounted my filesystem as rw automatically. In my understanding, it isn't abnormal to mount / as ro then later in the boot process remounting it as rw (so that the system can fsck the filesystem if it wants). Perhaps /etc/init.d/checkroot.sh or /etc/init.d/mountkernfs.sh was where it was getting remounted? – johnboiles May 31 '15 at 18:54

protected by goldilocks Jul 19 '15 at 11:54

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