Protect your SD card against wear and tear
License: MIT License
I am using overlayroot for a while and I like it. Unfortunately, this was coming with some drawback that I now need to address, and I am not sure how to achieve that the correct way.
I need to be able to access any devices in /dev, and write to them. This seems impossible to do so when overlayroot is enable. (trying to write to /dev/watchdog0)
Is there a built-in way to achieve that? Or, what would be the better way to do this, while keeping the overlayroot in action?
NOTE: I am aware of the rwrootfs command, which make it works for testing, but I need to be able to continuously write to the watchdog, and NOT in the rwrootfs mode.
How can I update the date/time continuously, while keeping overlayroot in action?
This seems to me to be similar to this issue:
#9
Because I would like to be able to let SOME parts of the system writable.
But I have separated them because it is possible that the solution for each is not exactly the same. (I don't have to update the date/time as often as a watchdog)
Could you clarify the installation?
I tried this and did not work:
git clone https://github.com/nils-werner/raspi-overlayroot
makepkg -si
the error was makepkg is not found.
Also, in the method you used, is it still possible to write data to the SD card? I am not talking about power loss transients but in general, when the system is on, can I still write data to the SD card?
Hi Nils,
would you share your knowledge regarding the setup of OverlayFS for x86_64 installations?
I must install Arch Linux on a USB stick (using SLC memory).
THX
Once I set the / filesystem to read only, in the fstab, "startx" yields "error in locking authority file ~/.Xauthority". It is also unable to move the Xorg.0.log file to Xorg.0.log.old
Hello, I just installed this in my arch pi, it seems everything went fine.
But if I got it right, I should be able to touch, write the files in / , without getting a "read-only"warning.
Because changes would go to ram (tempfs), is this it?
As of now I cannot touch new file, or nano edit any file at all, I get read only warning.
I can edit /etc/resolv.conf
So is this set to overlay only some specific files?
Thank you.
Hello!
I just tried this on my arch system (goflex net, but should be working anyway, or shouldn't it?)
When logging in I get the confirmation, that overlayfs is active and changes wheren't persistent, but:
First I tried it with / being mounted as rw in fstab, but changes on / still where persistent. So I tried changing to ro in fstab, but all I then got was a simple ro / filesystem. I cannot write anything to root. So there's no difference as if I had simply put root to ro in fstab without overlayfs.
Also "mount|grep overlay" doesn't show me anything?
What is wrong?
Thank you! :)
I just built a new image and enabled overlayroot. Super smooth; this is very cool!
I see the following warnings in the journal after boot, however:
Jul 05 19:46:21 pizero kernel: overlayfs: upperdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.
Jul 05 19:46:21 pizero kernel: overlayfs: workdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.
I don't know enough about overlayfs to say if this is a concern, but it did raise an eyebrow.
Even though the mkinicpio-script uses rbind, /boot is not bound to /overlay/lower/boot.
Maybe since at the time it is run, /boot is not mounted?
See https://git.archlinux.org/arch-install-scripts.git/tree/arch-chroot.in
and https://git.archlinux.org/arch-install-scripts.git/tree/common
and output of mount on fresh install:
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sys on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
dev on /dev type devtmpfs (rw,nosuid,relatime,size=212500k,nr_inodes=53125,mode=755)
run on /run type tmpfs (rw,nosuid,nodev,relatime,mode=755)
/dev/mmcblk0p2 on / type ext2 (rw,noatime,nodiratime,block_validity,barrier,user_xattr,acl)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=32,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=10041)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
configfs on /sys/kernel/config type configfs (rw,relatime)
/dev/mmcblk0p1 on /boot type vfat (rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=43928k,mode=700,uid=1000,gid=1000)
Running on a RPI 4 with ArchlinuxArm AArch64, it fails while "running late hook [overlayroot]
mount: /new_root: unknown filesystem type 'overlay'
ERROR: Failed to mount the real root device.
Bailing out, you are on your own. Good Luck.
Hi,
I tried using this on a RPi3 Model B. Changing the kernel command line is slightly different when running the aarch64 image, but that was not a big deal. Sadly, it does not work. I get stuck at boot. Here is the boot log:
[ 0.000000] Linux version 5.4.6-1-ARCH (builduser@leming) (gcc version 8.3.0 (GCC)) #1 SMP Mon Dec 23 09:59:08 MST 2019
[ 0.000000] Machine model: Raspberry Pi 3 Model B
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: UEFI not found.
[ 0.000000] cma: Reserved 64 MiB at 0x0000000037400000
[ 0.000000] percpu: Embedded 30 pages/cpu s85656 r8192 d29032 u122880
[ 0.000000] Detected VIPT I-cache on CPU0
[ 0.000000] CPU features: detected: ARM erratum 843419
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 238896
[ 0.000000] Kernel command line: console=ttyS1,115200 console=tty0 root=PARTUUID=d63af3d9-02 rw rootwait smsc95xx.macaddr=b8:27:eb:4e:d5:59 overlayroot
[ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 849920K/970752K available (14972K kernel code, 2738K rwdata, 7048K rodata, 1984K init, 826K bss, 55296K reserved, 65536K cma-reserved)
[ 0.000000] random: get_random_u64 called from cache_random_seq_create+0x88/0x158 with crng_init=0
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] ftrace: allocating 51517 entries in 202 pages
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=4.
[ 0.000000] Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000] arch_timer: cp15 timer(s) running at 19.20MHz (phys).
[ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
[ 0.000007] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
[ 0.000274] Console: colour dummy device 80x25
[ 0.000652] printk: console [tty0] enabled
[ 0.000711] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)
[ 0.000745] pid_max: default: 32768 minimum: 301
[ 0.001001] LSM: Security Framework initializing
[ 0.001035] Yama: becoming mindful.
[ 0.001155] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.001199] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.001300] *** VALIDATE tmpfs ***
[ 0.002044] *** VALIDATE proc ***
[ 0.002397] *** VALIDATE cgroup1 ***
[ 0.002419] *** VALIDATE cgroup2 ***
[ 0.003545] ASID allocator initialised with 32768 entries
[ 0.003689] rcu: Hierarchical SRCU implementation.
[ 0.007359] EFI services will not be available.
[ 0.007960] smp: Bringing up secondary CPUs ...
[ 0.008623] Detected VIPT I-cache on CPU1
[ 0.008694] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[ 0.009526] Detected VIPT I-cache on CPU2
[ 0.009571] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[ 0.010396] Detected VIPT I-cache on CPU3
[ 0.010439] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[ 0.010579] smp: Brought up 1 node, 4 CPUs
[ 0.010674] SMP: Total of 4 processors activated.
[ 0.010693] CPU features: detected: 32-bit EL0 Support
[ 0.010712] CPU features: detected: CRC32 instructions
[ 0.011295] CPU: All CPU(s) started at EL2
[ 0.011334] alternatives: patching kernel code
[ 0.013563] devtmpfs: initialized
[ 0.021535] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.021591] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[ 0.025100] pinctrl core: initialized pinctrl subsystem
[ 0.026421] DMI not present or invalid.
[ 0.027014] NET: Registered protocol family 16
[ 0.031651] DMA: preallocated 256 KiB pool for atomic allocations
[ 0.031739] audit: initializing netlink subsys (disabled)
[ 0.031972] audit: type=2000 audit(0.030:1): state=initialized audit_enabled=0 res=1
[ 0.033302] cpuidle: using governor ladder
[ 0.033344] cpuidle: using governor menu
[ 0.033871] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[ 0.034965] Serial: AMBA PL011 UART driver
[ 0.060153] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[ 0.060192] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[ 0.060214] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[ 0.060235] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[ 2.237027] cryptd: max_cpu_qlen set to 1000
[ 2.277252] ACPI: Interpreter disabled.
[ 2.278270] iommu: Default domain type: Translated
[ 2.278695] vgaarb: loaded
[ 2.279775] SCSI subsystem initialized
[ 2.280413] usbcore: registered new interface driver usbfs
[ 2.280487] usbcore: registered new interface driver hub
[ 2.280601] usbcore: registered new device driver usb
[ 2.281039] usb_phy_generic phy: phy supply vcc not found, using dummy regulator
[ 2.281795] pps_core: LinuxPPS API ver. 1 registered
[ 2.281815] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <[email protected]>
[ 2.281857] PTP clock support registered
[ 2.282163] EDAC MC: Ver: 3.0.0
[ 2.283272] Advanced Linux Sound Architecture Driver Initialized.
[ 2.283978] NetLabel: Initializing
[ 2.283996] NetLabel: domain hash size = 128
[ 2.284010] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO
[ 2.284107] NetLabel: unlabeled traffic allowed by default
[ 2.284679] clocksource: Switched to clocksource arch_sys_counter
[ 3.640804] *** VALIDATE bpf ***
[ 3.641162] VFS: Disk quotas dquot_6.6.0
[ 3.641256] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 3.641389] *** VALIDATE ramfs ***
[ 3.641426] *** VALIDATE hugetlbfs ***
[ 3.641853] simple-framebuffer 3eaf0000.framebuffer: framebuffer at 0x3eaf0000, 0x10a800 bytes, mapped to 0x(____ptrval____)
[ 3.641890] simple-framebuffer 3eaf0000.framebuffer: format=a8r8g8b8, mode=656x416x32, linelength=2624
[ 3.648925] Console: switching to colour frame buffer device 82x26
[ 3.655131] simple-framebuffer 3eaf0000.framebuffer: fb0: simplefb registered!
[ 3.658977] pnp: PnP ACPI: disabled
[ 3.671140] thermal_sys: Registered thermal governor 'fair_share'
[ 3.671145] thermal_sys: Registered thermal governor 'bang_bang'
[ 3.674892] thermal_sys: Registered thermal governor 'step_wise'
[ 3.678426] thermal_sys: Registered thermal governor 'user_space'
[ 3.681829] thermal_sys: Registered thermal governor 'power_allocator'
[ 3.685856] NET: Registered protocol family 2
[ 3.693203] tcp_listen_portaddr_hash hash table entries: 512 (order: 1, 8192 bytes, linear)
[ 3.700035] TCP established hash table entries: 8192 (order: 4, 65536 bytes, linear)
[ 3.707208] TCP bind hash table entries: 8192 (order: 5, 131072 bytes, linear)
[ 3.711162] TCP: Hash tables configured (established 8192 bind 8192)
[ 3.715149] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 3.719087] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 3.723236] NET: Registered protocol family 1
[ 3.727784] RPC: Registered named UNIX socket transport module.
[ 3.731510] RPC: Registered udp transport module.
[ 3.735106] RPC: Registered tcp transport module.
[ 3.738493] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 3.741856] PCI: CLS 0 bytes, default 64
[ 3.745373] Trying to unpack rootfs image as initramfs...
[ 4.308797] Freeing initrd memory: 7228K
[ 4.313493] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available
[ 4.320875] kvm [1]: IPA Size Limit: 40bits
[ 4.326271] kvm [1]: Hyp mode initialized successfully
[ 4.707727] Initialise system trusted keyrings
[ 4.711656] workingset: timestamp_bits=46 max_order=18 bucket_order=0
[ 4.723737] zbud: loaded
[ 4.730501] NFS: Registering the id_resolver key type
[ 4.734017] Key type id_resolver registered
[ 4.737404] Key type id_legacy registered
[ 4.740630] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 4.744184] SGI XFS with ACLs, security attributes, no debug enabled
[ 4.783594] NET: Registered protocol family 38
[ 4.786900] Key type asymmetric registered
[ 4.790090] Asymmetric key parser 'x509' registered
[ 4.793386] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 242)
[ 4.800458] io scheduler mq-deadline registered
[ 4.803902] io scheduler kyber registered
[ 4.807537] io scheduler bfq registered
[ 4.820391] IPMI message handler: version 39.2
[ 4.837062] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 4.842694] printk: console [ttyS1] disabled
[ 4.845996] 3f215040.serial: ttyS1 at MMIO 0x0 (irq = 61, base_baud = 31250000) is a 16550
[ 6.244858] printk: console [ttyS1] enabled
[ 6.253869] msm_serial: driver initialized
[ 6.262984] bcm2835-rng 3f104000.rng: hwrng registered
[ 6.272668] cacheinfo: Unable to detect cache hierarchy for CPU 0
[ 6.283271] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[ 6.298651] libphy: Fixed MDIO Bus: probed
[ 6.308709] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 6.318861] ehci-pci: EHCI PCI platform driver
[ 6.326826] ehci-platform: EHCI generic platform driver
[ 6.335723] ehci-orion: EHCI orion driver
[ 6.343275] tegra-ehci: Tegra EHCI driver
[ 6.350734] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 6.360303] ohci-pci: OHCI PCI platform driver
[ 6.368162] ohci-platform: OHCI generic platform driver
[ 6.376919] uhci_hcd: USB Universal Host Controller Interface driver
[ 6.387576] usbcore: registered new interface driver uas
[ 6.396536] usbcore: registered new interface driver usb-storage
[ 6.406068] usbcore: registered new interface driver ums-alauda
[ 6.415384] usbcore: registered new interface driver ums-cypress
[ 6.424623] usbcore: registered new interface driver ums-datafab
[ 6.433691] usbcore: registered new interface driver ums_eneub6250
[ 6.442858] usbcore: registered new interface driver ums-freecom
[ 6.451788] usbcore: registered new interface driver ums-isd200
[ 6.460520] usbcore: registered new interface driver ums-jumpshot
[ 6.469309] usbcore: registered new interface driver ums-karma
[ 6.477655] usbcore: registered new interface driver ums-onetouch
[ 6.486132] usbcore: registered new interface driver ums-realtek
[ 6.494341] usbcore: registered new interface driver ums-sddr09
[ 6.502355] usbcore: registered new interface driver ums-sddr55
[ 6.510265] usbcore: registered new interface driver ums-usbat
[ 6.518077] usbcore: registered new interface driver usbserial_generic
[ 6.526521] usbserial: USB Serial support registered for generic
[ 6.536161] mousedev: PS/2 mouse device common for all mice
[ 6.547738] device-mapper: uevent: version 1.0.3
[ 6.554617] device-mapper: ioctl: 4.41.0-ioctl (2019-09-16) initialised: [email protected]
[ 6.568243] sdhci: Secure Digital Host Controller Interface driver
[ 6.576570] sdhci: Copyright(c) Pierre Ossman
[ 6.583857] Synopsys Designware Multimedia Card Interface Driver
[ 6.690173] sdhost-bcm2835 3f202000.mmc: loaded - DMA enabled (>1)
[ 6.698973] sdhci-pltfm: SDHCI platform and OF driver helper
[ 6.709412] ledtrig-cpu: registered to indicate activity on CPUs
[ 6.719017] hidraw: raw HID events driver (C) Jiri Kosina
[ 6.727420] usbcore: registered new interface driver usbhid
[ 6.735905] usbhid: USB HID core driver
[ 6.743885] bcm2835-mbox 3f00b880.mailbox: mailbox enabled
[ 6.757047] drop_monitor: Initializing network drop monitor service
[ 6.767321] Initializing XFRM netlink socket
[ 6.776452] NET: Registered protocol family 10
[ 6.834381] Segment Routing with IPv6
[ 6.841711] mip6: Mobile IPv6
[ 6.843688] mmc0: host does not support reading read-only switch, assuming write-enable
[ 6.848153] NET: Registered protocol family 17
[ 6.848463] Key type dns_resolver registered
[ 6.866629] mmc0: new high speed SDHC card at address e624
[ 6.872145] registered taskstats version 1
[ 6.880329] mmcblk0: mmc0:e624 SU16G 14.8 GiB
[ 6.888275] Loading compiled-in X.509 certificates
[ 6.888485] zswap: loaded using pool lzo/zbud
[ 6.900725] mmcblk0: p1 p2
[ 6.903964] Key type ._fscrypt registered
[ 6.932587] Key type .fscrypt registered
[ 6.967872] Key type big_key registered
[ 6.998438] Key type encrypted registered
[ 7.011890] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 66, base_baud = 0) is a PL011 rev2
[ 7.027118] serial serial0: tty port ttyAMA0 registered
[ 7.043413] raspberrypi-firmware soc:firmware: Attached to firmware from 2019-12-11 15:14
[ 7.059119] raspberrypi-clk raspberrypi-clk: CPU frequency range: min 600000000, max 1200000000
[ 7.080422] vchiq: vchiq_init_state: slot_zero = (____ptrval____)
[ 7.092899] dwc2 3f980000.usb: 3f980000.usb supply vusb_d not found, using dummy regulator
[ 7.104918] dwc2 3f980000.usb: 3f980000.usb supply vusb_a not found, using dummy regulator
[ 7.167506] dwc2 3f980000.usb: DWC OTG Controller
[ 7.174312] dwc2 3f980000.usb: new USB bus registered, assigned bus number 1
[ 7.183411] dwc2 3f980000.usb: irq 41, io mem 0x3f980000
[ 7.190835] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 7.203132] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 7.212582] usb usb1: Product: DWC OTG Controller
[ 7.219482] usb usb1: Manufacturer: Linux 5.4.6-1-ARCH dwc2_hsotg
[ 7.227844] usb usb1: SerialNumber: 3f980000.usb
[ 7.234982] hub 1-0:1.0: USB hub found
[ 7.240846] hub 1-0:1.0: 1 port detected
[ 7.249817] sdhci-iproc 3f300000.sdhci: allocated mmc-pwrseq
[ 7.289410] mmc1: SDHCI controller on 3f300000.sdhci [3f300000.sdhci] using PIO
[ 7.302019] hctosys: unable to open rtc device (rtc0)
[ 7.309389] ALSA device list:
[ 7.314289] No soundcards found.
[ 7.315296] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[ 7.328604] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 7.333329] Freeing unused kernel memory: 1984K
[ 7.337563] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[ 7.342237] Run /init as init process
[ 7.352334] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[ 7.416714] random: fast init done
[ 7.461677] mmc1: new high speed SDIO card at address 0001
[ 7.694759] usb 1-1: new high-speed USB device number 2 using dwc2
[ 7.945035] usb 1-1: New USB device found, idVendor=0424, idProduct=9514, bcdDevice= 2.00
[ 7.959444] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 7.970754] hub 1-1:1.0: USB hub found
[ 7.977806] hub 1-1:1.0: 5 ports detected
[ 8.314737] usb 1-1.1: new high-speed USB device number 3 using dwc2
[ 8.381918] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 8.465308] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00, bcdDevice= 2.00
[ 8.481117] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 8.794713] usb 1-1.5: new full-speed USB device number 4 using dwc2
[ 8.938332] usb 1-1.5: config 1 interface 1 altsetting 0 endpoint 0x3 has wMaxPacketSize 0, skipping
[ 8.955277] usb 1-1.5: config 1 interface 1 altsetting 0 endpoint 0x83 has wMaxPacketSize 0, skipping
[ 8.975088] usb 1-1.5: New USB device found, idVendor=0a12, idProduct=0001, bcdDevice=88.91
[ 8.991964] usb 1-1.5: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[ 9.003744] usb 1-1.5: Product: CSR8510 A10
[ 9.716144] random: crng init done
Normally, systemd would start now like so:
[ 8.976814] usb 1-1.5: Product: CSR8510 A10
[ 9.092550] systemd[1]: System time before build time, advancing clock.
[ 9.143467] systemd[1]: systemd 244.1-1-arch running in system mode. (+PAM +AUDIT -SELINUX -IMA -APPARMOR +SMACK -SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid)
[ 9.184163] systemd[1]: Detected architecture arm64.
But nothing happens.
Hi, I just implemented your overlayfs on a Manjaro-Arm build on a RPi-3B. It works very well, but I did have to modify my process from your README slightly.
Since the Set filesystems readonly section comes after the Enable overlayroot in commandline section, and you call for a reboot between the two, the root fs is already an overlay, and any changes to it are lost on reboot. So editing the /etc/fstab file at that point is useless.
This can be fixed by telling installers to use the rwrootfs command before editing the /etc/fstab file, or just changing your instructions to not call for a reboot between the Enable overlayroot in commandline section and the Set filesystems readonly section.
Thanks,
Ted
makepkg comman not found on Raspberry Pi 3 B.
Should I install slack?
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