I realize that this is off topic from aredn, but as a software nitwit, people here would know (I figure DD-WRT is similar enough to OpenWRT and AREDN here)
I did the hardware mod to a WRT54G v2 to connect a SD card, and it looks like DDWRT sees it, when I do a df -h. And also when I do a mount.
Realize that I'm a rank beginner novice with linux, so this may be a really stupid question, but how do I actually look at (read/write) the files on this SD card? When I have it plugged into my PC (in which I have a program that allows it to read ext2/3 drives) I can see a couple of files I put there as a test. But I can't see anything when I do an ls at /mmc (If I mis-understand it, that's where I should see stuff on the SD card, that's where mount puts it: /dev/mmc/disc0/part1 953.1M 20.0K 904.6M 0% /mmc, yes?)
If not, where do I find the files on my SD card? Maybe I need more for the path? Doing an ls on /mmc yields nothing.
TIA
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need help with linux on viewing mounted drives
Fri, 02/17/2017 - 15:34
#1
wa2ise
need help with linux on viewing mounted drives
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df -h shows it mounted. Check the permissions for the file.
ls -alh /mmc
Here is an example of my USB mounted on a raspberry pi
pi@ke6upi-pi-wan:~ $ ls -alh /mnt/
total 12K
drwxr-xr-x 3 root root 4.0K Jan 31 09:30 .
drwxr-xr-x 21 root root 4.0K Sep 22 08:30 ..
drwxrwxrwx 5 root root 4.0K Jan 31 10:30 usb0
root root shows 1st root is the owner and the 2nd root is the group.
d/rwx/rwx/rwx
directory/root/group/users
d=directory
r=read
w=write
x=execute
Check that you are root
whoami
To change owner
chown -R "file/Path" root
chgrp -R "file/Path" root
Also check that it is formatted ext2.
David
ls -alh /mmc
root@DD-WRT:/# ls -alh /mmc
drwxr-xr-x 3 root root 1.0K Feb 17 2017 .
drwxr-xr-x 16 root root 153 Nov 2 2009 ..
root@DD-WRT:/#
and
root@DD-WRT:/# whoami
root
I inserted the SD card in my PC and copied a big file onto it, and I can see the memory consumption when I then reinsert the card bback into the DDWRT:
root@DD-WRT:~# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/root 3072 3072 0 100% /
/dev/mtdblock/4 64 64 0 100% /jffs
/dev/mmc/disc0/part1 975961 54466 871902 6% /mmc
root@DD-WRT:~#
root@DD-WRT:/# ls -alh
drwxr-xr-x 16 root root 153 Nov 2 2009 .
drwxr-xr-x 16 root root 153 Nov 2 2009 ..
drwxr-xr-x 2 root root 507 Nov 2 2009 bin
drwxr-xr-x 1 root root 0 Jan 1 00:00 dev
drwxr-xr-x 5 root root 414 Nov 2 2009 etc
drwxr-xr-x 1 root root 0 Jan 1 00:00 jffs
drwxr-xr-x 3 root root 242 Nov 2 2009 lib
drwxr-xr-x 3 root root 1.0K Feb 17 2017 mmc
drwxr-xr-x 2 root root 3 Nov 2 2009 mnt
drwxr-xr-x 2 root root 3 Nov 2 2009 opt
dr-xr-xr-x 30 root root 0 Jan 1 2000 proc
drwxr-xr-x 2 root root 991 Nov 2 2009 sbin
drwxr-xr-x 2 root root 3 Nov 2 2009 sys
drwxrwxrwx 1 root root 0 Jan 1 2000 tmp
drwxr-xr-x 7 root root 76 Nov 2 2009 usr
lrwxrwxrwx 1 root root 7 Nov 2 2009 var -> tmp/var
drwxr-xr-x 7 root root 112 Nov 2 2009 www
root@DD-WRT:/#
I can't figure out why I can't see the files on the SD card...
FWIW, and I did a dmesg:
root@DD-WRT:~# dmesg
CPU revision is: 00029007
Linux version 2.4.35 (eko@dd-wrt) (gcc version 3.4.4 (OpenWrt-2.0)) #3395 Mon N
ov 2 13:40:36 CET 2009
Determined physical RAM map:
memory: 01000000 @ 00000000 (usable)
On node 0 totalpages: 4096
zone(0): 4096 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/mtdblock2 rootfstype=squashfs,jffs2 noinitrd con
sole=ttyS0,115200
CPU: BCM4712 rev 1 at 200 MHz
Using 100.000 MHz high precision timer.
Calibrating delay loop... 196.19 BogoMIPS
Dentry cache hash table entries: 2048 (order: 2, 16384 bytes)
Inode cache hash table entries: 1024 (order: 1, 8192 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 4096 (order: 2, 16384 bytes)
Checking for 'wait' instruction... unavailable.
POSIX conformance testing by UNIFIX
PCI: Initializing host
PCI: Fixing up bus 0
PCI: Fixing up bridge
PCI: Setting latency timer of device 01:00.0 to 64
PCI: Fixing up bus 1
Initializing RT netlink socket
Starting kswapd
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
squashfs: version 3.0 (2006/03/15) Phillip Lougher
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI e
nabled
ttyS00 at 0xb8000300 (irq = 3) is a 16550A
ttyS01 at 0xb8000400 (irq = 3) is a 16550A
Software Watchdog Timer: 0.05, timer margin: 60 sec
PCI: Setting latency timer of device 00:02.0 to 64
Universal TUN/TAP device driver 1.5 (C)1999-2002 Maxim Krasnyansky
Physically mapped flash: Found an alias at 0x400000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x800000 for the chip at 0x0
Physically mapped flash: Found an alias at 0xc00000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1000000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1400000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1800000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1c00000 for the chip at 0x0
cfi_cmdset_0001: Erase suspend on write enabled
0: offset=0x0,size=0x2000,blocks=8
1: offset=0x10000,size=0x10000,blocks=63
Using word write method
Flash device: 0x400000 at 0x1c000000
bootloader size: 262144
Physically mapped flash: Filesystem type: squashfs, size=0x2ff709
Creating 5 MTD partitions on "Physically mapped flash":
0x00000000-0x00040000 : "cfe"
0x00040000-0x003f0000 : "linux"
0x000d8000-0x003e0000 : "rootfs"
mtd: partition "rootfs" doesn't start on an erase block boundary -- force read-
only
0x003f0000-0x00400000 : "nvram"
0x003e0000-0x003f0000 : "ddwrt"
Initializing Cryptographic API
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 1024 bind 2048)
ip_conntrack version 2.1 (512 buckets, 4096 max) - 336 bytes per conntrack
ip_tables: (C) 2000-2002 Netfilter core team
ipt_random match loaded
netfilter PSD loaded - (c) astaro AG
ipt_osf: Startng OS fingerprint matching module.
ipt_IPV4OPTSSTRIP loaded
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
VFS: Mounted root (squashfs filesystem) readonly.
Mounted devfs on /dev
PCI: Setting latency timer of device 00:01.0 to 64
eth1: Broadcom BCM4320 802.11 Wireless Controller 4.80.56.0
JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB.
mmc: starting module with: SD_DI=0x20, SD_DO=0x8, SD_CLK=0x10, SD_CS=0x80
Size = 992000, hardsectsize = 512, sectors = 1984000
Partition check:
mmca: p1
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
vlan0: add 01:00:5e:00:00:01 mcast address to master interface
vlan0: del 01:00:5e:00:00:01 mcast address from vlan interface
vlan0: del 01:00:5e:00:00:01 mcast address from master interface
vlan0: add 01:00:5e:00:00:01 mcast address to master interface
vlan0: del 01:00:5e:00:00:01 mcast address from vlan interface
vlan0: del 01:00:5e:00:00:01 mcast address from master interface
vlan0: add 01:00:5e:00:00:01 mcast address to master interface
vlan0: dev_set_promiscuity(master, 1)
device eth0 entered promiscuous mode
device vlan0 entered promiscuous mode
device eth1 entered promiscuous mode
vlan1: add 01:00:5e:00:00:01 mcast address to master interface
vlan1: del 01:00:5e:00:00:01 mcast address from vlan interface
vlan1: del 01:00:5e:00:00:01 mcast address from master interface
vlan1: add 01:00:5e:00:00:01 mcast address to master interface
vlan1: del 01:00:5e:00:00:01 mcast address from vlan interface
vlan1: del 01:00:5e:00:00:01 mcast address from master interface
vlan1: add 01:00:5e:00:00:01 mcast address to master interface
vlan1: dev_set_promiscuity(master, 1)
device vlan1 entered promiscuous mode
root@DD-WRT:~#
I haven't played with BustBox in along time. I don't won't point you in the wrong direction. But your dmesg said:
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
and
mtd: partition "rootfs" doesn't start on an erase block boundary -- force read-
only
I'm guessing, but I wouldn't use windows to make a ext2 file system. Try uBuntu live and gparted.
I gave up on the SD card approach, and did the USB mod, and that works! I can see the files on the USB stick, and with a USB SD card adapter, I can see those files too. And from my home network and Firefox, I can visit a web page I have on that USB adapter, http://192.168.1.81/user/mnt/licenseprint.htm (of course this link won't work for anyone but me, but I show it as an example)
As DD-WRT doesn't seem to have an option for teh LAN IP address to be a DHCP client (other than a hack you have to enter as code), I assigned it an address inside the range my mesh node DHCP server would give out.) However! If I try to link to this web site (with the DD-WRT router connected to my AREDN mesh node, and click that link under "advertised services" as seen under "mesh status" I get a browser error 400, Cross Site Action detected!. (insert inappropriate curse words here)... I tried to research a workaround for this error, but found nothing that helps.
My reason for attempting the use of a USB stick memory to house my web pages is that I don't use up flash in the router (delete something and the flash it used still remains tied up until you do a master reflash reset of the router), and to give me more memory room as well.
Tried again to add a USB stick to the OpenWRT router I attempted at the beginning of this thread, but either I damaged a circuit board trace, or the circuits inside the chip associated to that trace (if I did, it didn't kill the entire chip, as the router still works as before), or I left out an important piece of software package or didn't enable something. With it seems 10 or so such packages, and maybe I installed something that I don't need and it conflicts with the USB function, the end result is the same, no working USB. As a SW newbie, it's harder for a hardware weenie like me to figure it out..:). I have been looking at that ref above, but there's something I don't understand in it, or is assumed knowledge, that I miss.
Found this suggestion:
go to telnet/ssh console and type nvram set no_crossdetect=1 nvram commit
I did this, but still no good...
from http://svn.dd-wrt.com/ticket/1483
wouldn't a $35 Raspberry Pi based webserver be SOOO much simpler that turning a router into a webserver?
1) install Raspian to SD card
2) boot
3) apt-get install apache
4) copy files to docroot
My $.02....