Error creating full backup

[kilroy98]

Router: Redmi AC2100
Stock firmware version: 2.0.23

Select: 4

Download file: "/tmp/dmesg.log" ....
Download file: "/tmp/mtd_list.txt" ....
Download file: "/tmp/mtd_addr.txt" ....
Download file: "/tmp/kcmdline.log" ....
Download file: "/tmp/dmesg.log" ....
Download file: "/tmp/mtd_list.txt" ....
Download file: "/tmp/mtd_addr.txt" ....
Full backup creating...

ERROR: SSH execute command timed out! CMD: "dd if=/dev/mtd0 of=/tmp/mtd_dump.bin"

After this error web get "502 Bad Gateway" and tool no more work. And need to reboot router for fix it.

[remittor]

@kilroy98
In this case, use options 8 - 4

[kilroy98]

I tried this and backup was made only from 1 to 9. From 10 to 13 it fails with an error.

Choice: 4

Download file: "/tmp/dmesg.log" ....
Download file: "/tmp/mtd_list.txt" ....
Download file: "/tmp/mtd_addr.txt" ....
Download file: "/tmp/kcmdline.log" ....
Download file: "/tmp/dmesg.log" ....
Download file: "/tmp/mtd_list.txt" ....
Download file: "/tmp/mtd_addr.txt" ....
   0 > addr: 0x00000000  size: 0x07F80000  name: "ALL"
   1 > addr: 0x00000000  size: 0x00080000  name: "Bootloader"
   2 > addr: 0x00080000  size: 0x00040000  name: "Config"
   3 > addr: 0x000C0000  size: 0x00040000  name: "Bdata"
   4 > addr: 0x00100000  size: 0x00040000  name: "Factory"
   5 > addr: 0x00140000  size: 0x00040000  name: "crash"
   6 > addr: 0x00180000  size: 0x00040000  name: "crash_syslog"
   7 > addr: 0x001C0000  size: 0x00040000  name: "cfg_bak"
   8 > addr: 0x00200000  size: 0x00400000  name: "kernel0"
   9 > addr: 0x00600000  size: 0x00400000  name: "kernel1"
  10 > addr: 0x00A00000  size: 0x01A00000  name: "rootfs0"
  11 > addr: 0x02400000  size: 0x01A00000  name: "rootfs1"
  12 > addr: 0x03E00000  size: 0x02600000  name: "overlay"
  13 > addr: 0x06400000  size: 0x01B80000  name: "obr"

Enter partition name or mtd number: 12

ERROR: SSH execute command timed out! CMD: "dd if=/dev/mtd12 of=/tmp/mtd_dump.bin"

But if you select items from 10 to 13, then there will be no error 502. Only if you making a full backup or select item 0.

[kilroy98]

@remittor Is it normal for stock Xiaomi firmware that some partitions cannot be backed up or the backup function is not optimised for my router?

[remittor]

It’s just that when writing the code, I didn’t take into account the fact that some devices have very small RAM.
For such cases, I need to rewrite my code.

[kilroy98]

I understand. This router has 128MB of RAM.
If you plan to change the code in the near future, then I may not install custom firmware for now to check the functionality later.

[kilroy98]

@remittor How can I find out the size of the partition? I connected to the router via winscp, when I tried to create a backup from 10 to 13, the file was still created, even though the utility had an error message. But I don’t know what size these partitions are to be sure that its backup of this partition is full.

P.S. And can I write here in Russian? Or is it better to use English?

[ge38kun]

I have made a full backup of Xiaomi 6500 pro. How can be restored? is there any option?

thanks