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| kirill_ka:
Approach 1: It seems that the firmware contains gnu tar (maybe it's located in elgato/utils). You can check what filesystems you have with "mount" or "cat /proc/mounts" Then dump them individually with tar --one-file-system cvfz /mnt/fs1.tgz /fs1_mount_point Where /fs1_mount_point is the mount point you see in the list of mounts above. Skip virtual and temporary filesystems such as /proc. Approach 2: cp /dev/mtdsomething /mnt/mtdsomething.raw This way you can get a raw flash images (of individual flash partitions or the whole flash chip). The device names (mtdsomething) you can get from the list of mounts as described above. I suggest you do both, because the latter approach is good for backup and replication. The former one gets the files easily accessible. I can give you the exact commands in a week or so when I return to home. Or just PM me the output of cat /proc/mtd cat /proc/mounts tar --version gzip --version ls -lR / dmesg Redirect command outputs to files with "> filename" |
| jordi:
Here is the L4600A dump. https://j07m.s3-us-west-1.amazonaws.com/Public/L4600A_dump.zip If you see something else interesting please let me know. Now, I would like to know why the Time Based Calibration doesn't work. =( |
| jordi:
Yes, the second approach is the good one, I will try it. Here are my outputs: --- Code: ---[root@Linux /root]$cat /proc/mtd dev: size erasesize name mtd0: 04000000 00040000 "Physically mapped flash" mtd1: 00100000 00040000 "zImage" mtd2: 00300000 00040000 "ramdisk.gz" mtd3: 03c00000 00040000 "User FS" [root@Linux /root]$cat /proc/mounts rootfs / rootfs rw 0 0 /dev/root / ext2 rw 0 0 /proc /proc proc rw 0 0 none /dev/pts devpts rw 0 0 /dev/mtdb3 /flash jffs2 rw 0 0 [root@Linux /root]$tar --version tar: unrecognized option `--version' BusyBox v0.60.3 (2002.06.05-19:04+0000) multi-call binary Usage: tar -[cxtvO] [--exclude FILE] [-X FILE][-f TARFILE] [-C DIR] [FILE(s)] ... Create, extract, or list files from a tar file. Options: c create x extract t list File selection: f name of TARFILE or "-" for stdin O extract to stdout exclude file to exclude X file with names to exclude C change to directory DIR before operation v verbosely list files processed [root@Linux /root]$gzip --version gzip: invalid option -- - BusyBox v0.60.3 (2002.06.05-19:04+0000) multi-call binary Usage: gzip [OPTION]... FILE Compress FILE with maximum compression. When FILE is '-', reads standard input. Implies -c. Options: -c Write output to standard output instead of FILE.gz -d decompress [root@Linux /root]$ls IR / ls: IR: No such file or directory /: bin etc home linuxrc mnt proc root tmp var dev flash lib lost+found nfs rd sbin usr xdrive [root@Linux /root]$dmesg 360K data, 88K init) Dentry cache hash table entries: 8192 (order: 4, 65536 bytes) Inode cache hash table entries: 4096 (order: 3, 32768 bytes) Mount-cache hash table entries: 1024 (order: 1, 8192 bytes) Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes) Page-cache hash table entries: 16384 (order: 4, 65536 bytes) POSIX conformance testing by UNIFIX Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket sa1111_pcibuf: initializing SA-1111 DMA workaround SA1111 Microprocessor Companion Chip: silicon revision 1, metal revision 1 Starting kswapd JFFS version 1.0, (C) 1999, 2000 Axis Communications AB JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB. ttyS0 at I/O 0xf0100000 (irq = 50) is a 16550A ttyS1 at I/O 0xf0120000 (irq = 51) is a 16550A ttyS2 at I/O 0xf0140000 (irq = 52) is a 16550A ttyS3 at I/O 0xf0160000 (irq = 54) is a 16550A ttySA0 at MEM 0x80050000 (irq = 17) is a SA1100 ttySA1 at MEM 0x80010000 (irq = 15) is a SA1100 ttySA2 at MEM 0x80030000 (irq = 16) is a SA1100 Console: switching to colour frame buffer device 80x30 initialize_kbd: Keyboard reset failed, no ACK Keyboard timed out[1] keyboard: Timeout - AT keyboard not present? Keyboard timed out[1] keyboard: Timeout - AT keyboard not present? pty: 256 Unix98 ptys configured UCB1200 generic module installed ucb1200 touch screen driver initialized ucb1200 adc driver initialized UCB1200 audio driver version 2.2 initialized UCB1200 audio driver Click-Avoid patch: TT <tthaele@papenmeier.de> UCB1200 Mixer driver version 0.1 initialized. TT <tthaele@papenmeier.de> smartio driver initialized. version 1.10, date:28-Jun-2002 SmartIO ID : 0x5002 Device Version : 5(0x35) Device Type : 0x8535 SA1100 Real Time Clock driver v1.00 Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx smc9194.c:v0.14 12/15/00 by Erik Stahlman (erik@vt.edu) eth0: SMC91C96(r:9) at 0xf00e0000 IRQ:58 INTF:TP MEM:6144b ADDR: 00:60:0c:01:37:05 RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize loop: loaded (max 8 devices) PPP generic driver version 2.4.2 Sound: SA1111 UDA1341: dsp id 3 mixer id 0 SA1111 audio out: SA-1111 SAC DMA channel 6 in use DMA request for SAC output failed physmap flash device: 4000000 at 8000000 Physically mapped flash: Found 2 x16 devices at 0x2000000 in 32-bit mode 0: offset=0x0,size=0x40000,blocks=128 1: offset=0x2000000,size=0x40000,blocks=128 Using buffer write method SA1100 flash: probing 32-bit flash bus SA1100 flash: Found 2 x16 devices at 0x2000000 in 32-bit mode 0: offset=0x0,size=0x40000,blocks=128 1: offset=0x2000000,size=0x40000,blocks=128 Using buffer write method Using static partition definition Creating 3 MTD partitions on "SA1100 flash": 0x00000000-0x00100000 : "zImage" 0x00100000-0x00400000 : "ramdisk.gz" 0x00400000-0x04000000 : "User FS" Linux Kernel Card Services 3.1.22 options: [pm] SA-1100 PCMCIA (CS release 3.1.22) usb.c: registered new driver usbdevfs usb.c: registered new driver hub hcd/ohci-sa1111.c: starting SA-1111 OHCI USB Controller hcd/ohci-sa1111.c: ohci-hcd (SA-1111) at 0xf4000400, irq 109 usb.c: new USB bus registered, assigned bus number 1 hub.c: USB hub found hub.c: 1 port detected usb.c: registered new driver hiddev usb.c: registered new driver hid hid-core.c: v1.8.1 Andreas Gal, Vojtech Pavlik <vojtech@suse.cz> hid-core.c: USB HID support drivers mice: PS/2 mouse device common for all mice NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP IP: routing cache hash table of 512 buckets, 4Kbytes TCP: Hash tables configured (established 4096 bind 4096) NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. NetWinder Floating Point Emulator V0.95 (c) 1998-1999 Rebel.com RAMDISK: Compressed image found at block 0 Freeing initrd memory: 3072K EXT2-fs warning: checktime reached, running e2fsck is recommended VFS: Mounted root (ext2 filesystem). Freeing init memory: 88K hub.c: USB new device connect on bus1/1, assigned device number 2 hub.c: USB hub found hub.c: 4 ports detected enable_irq(115) unbalanced from c032558c Trying to free nonexistent resource <ce8b7000-ce8b700f> hda: CF Card, ATA DISK drive ide0 at 0xce8b7000-0xce8b7007,0xce8b700e on irq 115 hda: task_no_data_intr: status=0x51 { DriveReady SeekComplete Error } hda: task_no_data_intr: error=0x04 { DriveStatusError } hda: 3902976 sectors (1998 MB) w/1KiB Cache, CHS=242/255/63 Partition check: hda: hda1 ide_cs: hda: Vcc = 3.3, Vpp = 0.0 VFS: Can't find ext2 filesystem on dev ide0(3,1). cramfs: wrong magic VFS: Can't find ext2 filesystem on dev ide0(3,1). cramfs: wrong magic AVR driver initialized. version 1.1, date:Aug 6 2004 VFS: Can't find ext2 filesystem on dev ide0(3,0). cramfs: wrong magic FAT: bogus logical sector size 64543 VFS: Can't find a valid FAT filesystem on dev 03:00. JFFS: Trying to mount a non-mtd device. jffs2: attempt to mount non-MTD device 03:00 VFS: Can't find ext2 filesystem on dev ide0(3,1). cramfs: wrong magic --- End code --- |
| jordi:
I used DD, not sure if it will work: --- Code: ---[root@Linux /]$dd if=/dev/mtdb3 of=/mnt/mtdb3.img bs=32 1966080+0 records in 1966080+0 records out [root@Linux /]$ls -l /mnt -rwxr-xr-x 1 root root 62914560 Jul 7 23:06 mtdb3.img -rwxr-xr-x 1 root root 157280 Jul 7 22:54 printScreen.png --- End code --- |
| kirill_ka:
--- Quote from: jordi on July 07, 2020, 11:08:27 pm ---I used DD, not sure if it will work: --- End quote --- Thanks for the dump! Yes, dd suites better for the task. I thought there's no dd there. 03c00000 = 62914560 so the size of mtdb3.img is correct. It would be a good idea to dump the whole flash (mtd0) so you have a whole image if something goes wrong (and, please, share it too). You may want to set bs=1024 or something so it would go faster. |
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