Why UBIFS mounts read only?
harsh poshtiwala
hiharsh at gmail.com
Mon May 13 11:06:13 EDT 2013
Hi Tim,
I have devtmpfs enabled in my kernel config. I also have /etc/fstab to
mount the other partitions and /proc as well as sys from rcS script
which has command mount -a (Which is supposed to read /etc/fstab
mount).
Yes, you can say my inittab is kind of dummy as such I dodn't see the
UBIFS and other partitions mounted from /etc/fstab entry I thought of
mounting those from /etc/inittab (which is the first file read by
kernel upon boot).
that is the reason, I modified the /etc/inittab to force mount the
ubifs as RW as well as mount /proc and /dev/pts.
Let me know your comments to fix this.
On Mon, May 13, 2013 at 2:48 AM, Tim Sander <tim at krieglstein.org> wrote:
> Am Sonntag, 12. Mai 2013, 21:56:15 schrieb harsh poshtiwala:
>> Hi, I am trying to boot UBIFS based rootfs on NAND flash.
>> Upon mounting, I found the rootfs is mounted readonly without any messages..
>> My kernel command line parameters are as below.
>>
>>
>> setenv bootargs console=ttyO2,115200n8 rootfstype=ubifs rw
>> ubi.mtd=10,2048 root=ubi0:rootfs; setenv nandargs setenv bootargs
>> console=ttyO2,115200n8 rootfstype=ubifs rw ubi.mtd=10,2048
>> root=ubi0:rootfs;
>> saveenv;
>>
>>
>> Here is the fstab entry
>>
>> proc /proc proc defaults 0
>> 0 /dev/mtdblock12 /mnt/readerconfig jffs2 rw,exec,noatime
>> 0 0 /dev/mtdblock15 /mnt/data jffs2 rw,exec,noatime
>> 0 0 tmpfs /var tmpfs defaults
>> 0 0 tmpfs /tmp tmpfs defaults
>> 0 0 tmpfs /media/ram tmpfs defaults
>> 0 0 sysfs /sys sysfs
>> nosuid,noexec,nodev 0 0 # uncomment this if your device has a
>> SD/MMC/Transflash slot
>> #/dev/mmcblk0p1 /media/card auto defaults,sync,noauto 0
>> 0 usbfs /proc/bus/usb usbfs defaults
>> 0 0 none /dev/pts devpts defaults
>> 0 0
>>
>>
>> Here is the inittab
>>
>> ::sysinit:/bin/mount -t proc proc /proc
>> ::sysinit:/bin/mount -o remount,rw /
>> ::sysinit:/bin/mkdir -p /dev/pts
>> ::sysinit:/bin/mount -a
>> ::sysinit:/etc/init.d/rcS
>> ::respawn:/sbin/getty 115200 ttyO2
>>
>> # Stuff to do when restarting the init process
>>
>> ::restart:/sbin/init
>>
>> # Stuff to do before rebooting
>>
>> ::shutdown:/bin/cp /var/log/syslog /mnt/readerconfig/LOGGER.DB
>> ::ctrlaltdel:/sbin/reboot
>> ::shutdown:/bin/umount -a -r
>>
>> ~
>>
>> Also, I flashed image after erasing the partion followed by ubiformat.
>>
>> Here is the complete boot log, any help would be appreciated.
>>
>>
>> NAND read: device 0 offset 0x700000, size 0x500000
>> 5242880 bytes read: OK
>> mot_setbootargs: console=ttyO2,115200n8 rootfstype=ubifs rw
>> ubi.mtd=10,2048 root=ubi0:rootfs mothw=0 ubootver=91.1.1
>> eth=00:15:70:cd:3a:a2
>> ## Booting kernel from Legacy Image at 82000000 ...
>> Image Name: Linux-2.6.32.8.ti-omap3-am3517-e
>> Image Type: ARM Linux Kernel Image (uncompressed)
>> Data Size: 1986756 Bytes = 1.9 MiB
>> Load Address: 80008000
>> Entry Point: 80008000
>> Verifying Checksum ... OK
>> Loading Kernel Image ... OK
>> OK
>>
>> Thredbo: Starting kernel ...
>>
>> Uncompressing
>> Linux......................................................................
>> ............................................................. done, booting
>> the kernel.
>>
>> Thredbo kernel version: 1.1.3
>>
>> Linux version 2.6.32.8.ti-omap3-am3517-evm (mvdev at MVista) (gcc version
>> 4.4.1 (MontaVista Linux Sourcery G++ 4.4-312) ) #69 PREEMPT Thu May 9
>> 13:49:58 EDT 2013
>> CPU: ARMv7 Processor [411fc087] revision 7 (ARMv7), cr=10c53c7f
>> CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
>> Machine: OMAP3517/AM3517 EVM
>> Memory policy: ECC disabled, Data cache writeback
>> AM3505 ES3.1 (l2cache iva neon isp )
>> SRAM: Mapped pa 0x40200000 to va 0xfe400000 size: 0x100000
>> Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024
>> Thredbo: Kernel command line: console=ttyO2,115200n8 rootfstype=ubifs
>> rw ubi.mtd=10,2048 root=ubi0:rootfs mothw=0 ubootver=91.1.1
>> eth=00:15:70:cd:3a:a2
>> PID hash table entries: 1024 (order: 0, 4096 bytes)
>> Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
>> Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
>> Memory: 256MB = 256MB total
>> Memory: 255488KB available (3692K code, 335K data, 140K init, 0K highmem)
>> Hierarchical RCU implementation.
>> NR_IRQS:368
>> Clocking rate (Crystal/Core/MPU): 26.0/332/600 MHz
>> GPMC revision 5.0
>> IRQ: Found an INTC at 0xfa200000 (revision 4.0) with 96 interrupts
>> Total of 96 interrupts on 1 active controller
>> OMAP GPIO hardware version 2.5
>> OMAP clockevent source: GPTIMER1 at 32768 Hz
>> Console: colour dummy device 80x30
>> Calibrating delay loop... 597.64 BogoMIPS (lpj=2334720)
>> Mount-cache hash table entries: 512
>> CPU: Testing write buffer coherency: ok
>> saved_command_line=console=ttyO2,115200n8 rootfstype=ubifs rw
>> ubi.mtd=10,2048 root=ubi0:rootfs mothw=0 ubootver=91.1.1
>> eth=00:15:70:cd:3a:a2
>> uboot ver=0x005b0101
>> Thredbo hardware detected, ID=0
>> devtmpfs: initialized
>> NET: Registered protocol family 16
>> omap_serial_init_port: port 0 dma_enabled 1
>> omap_serial_init_port: port 1 dma_enabled 1
>> omap_serial_init_port: port 2 dma_enabled 1
>> Display initialized successfully
>> OMAP DMA hardware revision 4.0
>> bio: create slab <bio-0> at 0
>> SCSI subsystem initialized
>> usbcore: registered new interface driver usbfs
>> usbcore: registered new interface driver hub
>> usbcore: registered new device driver usb
>> i2c_omap i2c_omap.1: bus 1 rev3.12 at 400 kHz
>> Bluetooth: Core ver 2.15
>> NET: Registered protocol family 31
>> Bluetooth: HCI device and connection manager initialized
>> Bluetooth: HCI socket layer initialized
>> Switching to clocksource 32k_counter
>> musb_hdrc: version 6.0, cppi4.1-dma, host, debug=0
>> AM3517 OTG revision 4ea41001, PHY b0036a2, control 00
>> musb_hdrc: USB Host mode controller at d0810000 using DMA, IRQ 71
>> musb_hdrc musb_hdrc: MUSB HDRC host driver
>> musb_hdrc musb_hdrc: new USB bus registered, assigned bus number 1
>> usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
>> usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
>> usb usb1: Product: MUSB HDRC host driver
>> usb usb1: Manufacturer: Linux 2.6.32.8.ti-omap3-am3517-evm musb-hcd
>> usb usb1: SerialNumber: musb_hdrc
>> hub 1-0:1.0: USB hub found
>> hub 1-0:1.0: 1 port detected
>> NET: Registered protocol family 2
>> IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
>> TCP established hash table entries: 8192 (order: 4, 65536 bytes)
>> TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
>> TCP: Hash tables configured (established 8192 bind 8192)
>> TCP reno registered
>> UDP hash table entries: 256 (order: 0, 4096 bytes)
>> UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
>> NET: Registered protocol family 1
>> RPC: Registered udp transport module.
>> RPC: Registered tcp transport module.
>> RPC: Registered tcp NFSv4.1 backchannel transport module.
>> LTTng will clear ccnt top bit every 229 jiffies.
>> AM3505 Linux PSP version 03.00.00.05 (AM3517EVM)
>> VFS: Disk quotas dquot_6.5.2
>> Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
>> squashfs: version 4.0 (2009/01/31) Phillip Lougher
>> JFFS2 version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
>> yaffs May 9 2013 13:44:34 Installing.
>> msgmni has been set to 499
>> alg: No test for cipher_null (cipher_null-generic)
>> alg: No test for ecb(cipher_null) (ecb-cipher_null)
>> alg: No test for digest_null (digest_null-generic)
>> alg: No test for compress_null (compress_null-generic)
>> alg: No test for stdrng (krng)
>> io scheduler noop registered
>> io scheduler deadline registered
>> io scheduler cfq registered (default)
>> motdio_init_module
>> thredboio: total 46 dios
>> omap-hsuart.0: ttyO0 at MMIO 0x4806a000 (irq = 72) is a OMAP UART0
>> omap-hsuart.1: ttyO1 at MMIO 0x4806c000 (irq = 73) is a OMAP UART1
>> omap-hsuart.2: ttyO2 at MMIO 0x49020000 (irq = 74) is a OMAP UART2
>> console [ttyO2] enabled
>> loop: module loaded
>> omap2-nand driver initializing
>> NAND device: Manufacturer ID: 0x2c, Chip ID: 0xb3 (Micron NAND 1GiB 1,8V
>> 16-bit) Creating 16 MTD partitions on "omap2-nand.0":
>> 0x000000000000-0x000000020000 : "xloader1"
>> 0x000000020000-0x000000040000 : "xloader2"
>> 0x000000040000-0x000000080000 : "reserved"
>> 0x000000080000-0x000000100000 : "uboot1"
>> 0x000000100000-0x000000180000 : "uboot2"
>> 0x000000180000-0x0000001a0000 : "bootdata1"
>> 0x0000001a0000-0x0000001c0000 : "bootdata2"
>> 0x0000001c0000-0x000000200000 : "reserved"
>> 0x000000200000-0x000000700000 : "linux kernel1"
>> 0x000000700000-0x000000c00000 : "linux kernel2"
>> 0x000000c00000-0x000019c00000 : "rootfs_1"
>> 0x000019c00000-0x000032c00000 : "rootfs_2"
>> 0x000032c00000-0x000033000000 : "readerconfig"
>> 0x000033000000-0x000037000000 : "platform1"
>> 0x000037000000-0x00003b000000 : "platform2"
>> 0x00003b000000-0x000040000000 : "data"
>> UBI: attaching mtd10 to ubi0
>> UBI: physical eraseblock size: 131072 bytes (128 KiB)
>> UBI: logical eraseblock size: 126976 bytes
>> UBI: smallest flash I/O unit: 2048
>> UBI: sub-page size: 512
>> UBI: VID header offset: 2048 (aligned 2048)
>> UBI: data offset: 4096
>> UBI: attached mtd10 to ubi0
>> UBI: MTD device name: "rootfs_1"
>> UBI: MTD device size: 400 MiB
>> UBI: number of good PEBs: 3200
>> UBI: number of bad PEBs: 0
>> UBI: max. allowed volumes: 128
>> UBI: wear-leveling threshold: 4096
>> UBI: number of internal volumes: 1
>> UBI: number of user volumes: 1
>> UBI: available PEBs: 0
>> UBI: total number of reserved PEBs: 3200
>> UBI: number of PEBs reserved for bad PEB handling: 32
>> UBI: max/mean erase counter: 1/0
>> UBI: image sequence number: 0
>> UBI: background thread "ubi_bgt0d" started, PID 341
>> PPP generic driver version 2.4.2
>> PPP Deflate Compression module registered
>> usbcore: registered new interface driver asix
>> usbcore: registered new interface driver cdc_ether
>> ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
>> ehci-omap ehci-omap.0: OMAP-EHCI Host Controller
>> ehci-omap ehci-omap.0: new USB bus registered, assigned bus number 2
>> ehci-omap ehci-omap.0: irq 77, io mem 0x48064800
>> ehci-omap ehci-omap.0: USB 2.0 started, EHCI 1.00
>> usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
>> usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
>> usb usb2: Product: OMAP-EHCI Host Controller
>> usb usb2: Manufacturer: Linux 2.6.32.8.ti-omap3-am3517-evm ehci_hcd
>> usb usb2: SerialNumber: ehci-omap.0
>> hub 2-0:1.0: USB hub found
>> hub 2-0:1.0: 3 ports detected
>> Initializing USB Mass Storage driver...
>> usbcore: registered new interface driver usb-storage
>> USB Mass Storage support registered.
>> usbcore: registered new interface driver usbtest
>> udc: OMAP UDC driver, version: 4 October 2004 (iso) (dma)
>> #ds1339_probe: Thredbo ds1339 driver
>> ds1339_probe ds1339_get_datetime success
>> rtc-ds1339 1-0068: rtc core: registered rtc-ds1339 as rtc0
>> i2c /dev entries driver
>> OMAP Watchdog Timer Rev 0x31: initial timeout 60 sec
>> Bluetooth: Generic Bluetooth USB driver ver 0.6
>> usbcore: registered new interface driver btusb
>> usbcore: registered new interface driver usbhid
>> usbhid: USB HID core driver
>> IPv4 over IPv4 tunneling driver
>> TCP cubic registered
>> Initializing XFRM netlink socket
>> NET: Registered protocol family 10
>> IPv6 over IPv4 tunneling driver
>> NET: Registered protocol family 17
>> NET: Registered protocol family 15
>> Bluetooth: L2CAP ver 2.14
>> Bluetooth: L2CAP socket layer initialized
>> Bluetooth: RFCOMM socket layer initialized
>> Bluetooth: RFCOMM ver 1.11
>> Bluetooth: HIDP (Human Interface Emulation) ver 1.2
>> Power Management for TI OMAP3.
>> VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 1
>> Valid mac: 00:15:70:cd:3a:a2
>> davinci_emac_probe: using saved MAC addr: 00:15:70:cd:3a:a2
>> emac-mii: probed
>> rtc-ds1339 1-0068: rtc_hctosys: setting system clock to 2013-05-11
>> 03:29:12 UTC (1368242952)
>> UBIFS: recovery needed
>> UBIFS: recovery completed
>> UBIFS: mounted UBI device 0, volume 0, name "rootfs"
>> UBIFS: file system size: 400355328 bytes (390972 KiB, 381 MiB, 3153 LEBs)
>> UBIFS: journal size: 9023488 bytes (8812 KiB, 8 MiB, 72 LEBs)
>> UBIFS: media format: w4/r0 (latest is w4/r0)
>> UBIFS: default compressor: lzo
>> UBIFS: reserved for root: 0 bytes (0 KiB)
>> VFS: Mounted root (ubifs filesystem) on device 0:14.
>> devtmpfs: mounted
>> Freeing init memory: 140K
>> init started: BusyBox v1.13.2 (2013-01-09 12:22:37 IST)
>> can't open /dev/proc: No such file or directory
>> can't open /dev/rwmo: No such file or directory
>> can't open /dev/dpts: No such file or directory
>> can't open /dev/moun: No such file or directory
> With devtmpfs (DEVTMPFS_MOUNT set?) you should not see these messages?
> Or your initscripts are bogus?
>> > starting pid 390, tty '': '/etc/init.d/rcS'
>> hostname: permission denied. (are you root?)
>> ifup: interface eth0 already configured
>> Starting syslogd/klogd: ifup: interface lo already configured
>> starting pid 402, tty '': '/sbin/getty 115200 ttyO2'
>> Executing thredbo startup script...
>> ====================================
>> done
>> Starting OpenBSD Secure Shell server: sshd
>> ERROR: Failed to open /dev/mtdblock5 in r+ mode
>> .Could not load host key: /etc/ssh/ssh_host_rsa_key
>> Could not load host key: /etc/ssh/ssh_host_dsa_key
>> Disabling protocol version 2. Could not load host key
>> sshd: no hostkeys available -- exiting.
>> ..++++++
>> ...................++++++
>> Segmentation fault
>> chmod: /platform/bin/*: No such file or directory
>> chmod: /platform/bin/mfgreset.elf: No such file or directory
>> ./InitThredboScript.sh: line 20: /platform/bin/mfgreset.elf: not found
>> chmod: /platform/bin/mfgreset.elf: No such file or directory
>> ./InitThredboScript.sh: line 24: /readerconfig/networkscript.sh: not found
>> /usr/local/avahi/sbin/avahi-autoipd: error while loading shared
>> libraries: libdaemon.so.0: cannot open shared object file: No such
>> file or directory
>> ./InitThredboScript.sh: line 32: /platform/bin/snmpextagent.elf: not found
>> AH00526: Syntax error on line 220 of /usr/local/apache2/conf/httpd.conf:
>> DocumentRoot must be a directory
>> AH00526: Syntax error on line 220 of /usr/local/apache2/conf/httpd.conf:
>> DocumentRoot must be a directory
>> ./InitThredboScript.sh: line 43: /platform/bin/rmserver.elf: not found
>> ./InitThredboScript.sh: line 41: /platform/bin/llrpserver.elf: not found
>> pfkey_open: Operation not permitted
>> ./InitThredboScript.sh: line 56: /platform/bin/RDMPAgent: not found
>> ifconfig: SIOCSIFADDR: Permission denied
>> Starting applications....
>> racoon: must be root to invoke this program.
>> chmod: /apps/autostart.sh: No such file or directory
>> su: can't set groups: Operation not permitted
>> ifconfig: /proc/net/dev: No such file or directory
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> ^Ccat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>>
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>>
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> process '/sbin/getty 115200 ttyO2' (pid 402) exited. Scheduling for restart.
>> starting pid 490, tty '': '/sbin/getty 115200 ttyO2'
>> ecat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> boot
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ifconfig: /proc/net/dev: No such file or directory
>> cat: can't open '/sys/class/net/eth0/carrier': No such file or directory
>> ....
>>
>> --
>> Thanks & Regards
>> Harsh
>>
>> ______________________________________________________
>> Linux MTD discussion mailing list
>> http://lists.infradead.org/mailman/listinfo/linux-mtd/
--
Thanks & Regards
Harsh
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