BACKUPMON BACKUPMON v1.5.10 -Mar 1, 2024- Backup/Restore your Router: JFFS + NVRAM + External USB Drive! (**Thread closed due to age**)

[Viktor Jaep]

Can you, please, post the output of # mount?
My shows that the share is mounted using SMB v2.0; whereas trying to mount using SMB v2.1 throws an "Invalid argument error".

Spoiler: The share is mounted using SMB v2.0

ladmin@GT-AC2900-1:/tmp/home/root# mount -t cifs -o "vers=2.0,username=******,password=******" "\\\\192.168.0.2\\backups (at Files)" /tmp/mnt/backups
ladmin@GT-AC2900-1:/tmp/home/root# mount | grep /tmp/mnt
tmpfs on /tmp/mnt type tmpfs (rw,noexec,relatime,size=16k)
tmpfs on /tmp/mnt type tmpfs (rw,noexec,relatime,size=16k)
/dev/sda1 on /tmp/mnt/Storage type ext4 (rw,nodev,relatime,data=ordered)
\\192.168.0.2\backups (at Files) on /tmp/mnt/backups type cifs (rw,relatime,vers=2.0,sec=ntlmssp,cache=strict,username=ladmin,domain=GT-AC2900-2,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.0.2,file_mode=0755,dir_mode=0755,nounix,serverino,mapposix,rsize=65536,wsize=65536,actimeo=1)

Here's solid proof that the RT-AC86U does SMB v2.1...

ViktorJp@RT-AC86U-BE10:/tmp/home/root# mount -t cifs \\\\192.168.86.9\\Backups /tmp/mnt/jangofett -o "vers=2.1,username=*****,password=*****"
ViktorJp@RT-AC86U-BE10:/tmp/home/root# mount | grep /tmp/mnt
tmpfs on /tmp/mnt type tmpfs (rw,noexec,relatime,size=16k)
tmpfs on /tmp/mnt type tmpfs (rw,noexec,relatime,size=16k)
/dev/sda1 on /tmp/mnt/PNY-USB type ext4 (rw,nodev,relatime,data=ordered)
\\192.168.86.9\Backups on /tmp/mnt/jangofett type cifs (rw,relatime,vers=2.1,sec=ntlmssp,cache=strict,username=admin,domain=JANGOFETT,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.86.9,file_mode=0755,dir_mode=0755,nounix,serverino,mapposix,rsize=1048576,wsize=1048576,actimeo=1)

Not sure that it matters... but the order that the UNC/Path is being called in my mount statement is different than yours. What if you used v2.1 using the same order as my mount statement to see?

 

[vaboro]

Here's solid proof that the AC86U does SMB v2.1...

Yeah, right! Thank you!
Maybe firmware version 386.12_2 makes the difference. I'm still on 386.12_0

 

[Viktor Jaep]

Yeah, right! Thank you!
Maybe firmware version 386.12_2 makes the difference. I'm still on 386.12_0

Well, mine was working fine on 386.12_0 before...

 

[vaboro]

Well, mine was working fine on 386.12_0 before...

Alright! Well noted. Thank you.

 

[Viktor Jaep]

You'll have to check the source code to verify that.

 

[vaboro]

What if you used v2.1 using the same order as my mount statement to see?

Unfortunately, doesn't work. Thank you for drawing my attention to this detail.

Spoiler: Invalid argument error

ladmin@GT-AC2900-1:/tmp/home/root# mount -t cifs "\\\\192.168.0.2\\backups (at Files)" /tmp/mnt/backups -o "vers=2.1,username=******,password=******"
mount: mounting \\192.168.0.2\backups (at Files) on /tmp/mnt/backups failed: Invalid argument

However, with vers=2.0 works fine.

 

[Viktor Jaep]

Unfortunately, doesn't work. Thank you for drawing my attention to this detail.

Spoiler: Invalid argument error

ladmin@GT-AC2900-1:/tmp/home/root# mount -t cifs "\\\\192.168.0.2\\backups (at Files)" /tmp/mnt/backups -o "vers=2.1,username=******,password=******"
mount: mounting \\192.168.0.2\backups (at Files) on /tmp/mnt/backups failed: Invalid argument

However, with vers=2.0 works fine.

Thanks for verifying... I've just added this to the requirements list. I'll consider making this a setup option in the future to help make it more backwards compatiable.

 

[ColinTaylor]

Can you, please, post the output of # mount?
My shows that the share is mounted using SMB v2.0; whereas trying to mount using SMB v2.1 throws an "Invalid argument error".

Are you sure your server actually supports SMB v2.1?

 

[vaboro]

Are you sure your server actually supports SMB v2.1?

Actually, I am not. Network Place (Samba) Share / Cloud Disk tab says my firmware support SMBv1 + SMBv2 only.

Spoiler: USB Application - Network Place (Samba) Share / Cloud Disk

I am thinking about installing samba4-server - 4.18.0-1 from entware. I found a thread about configuring it on this forum.

 

[Jeffrey Young]

Here's solid proof that the RT-AC86U does SMB v2.1...

ViktorJp@RT-AC86U-BE10:/tmp/home/root# mount -t cifs \\\\192.168.86.9\\Backups /tmp/mnt/jangofett -o "vers=2.1,username=*****,password=*****"
ViktorJp@RT-AC86U-BE10:/tmp/home/root# mount | grep /tmp/mnt
tmpfs on /tmp/mnt type tmpfs (rw,noexec,relatime,size=16k)
tmpfs on /tmp/mnt type tmpfs (rw,noexec,relatime,size=16k)
/dev/sda1 on /tmp/mnt/PNY-USB type ext4 (rw,nodev,relatime,data=ordered)
\\192.168.86.9\Backups on /tmp/mnt/jangofett type cifs (rw,relatime,vers=2.1,sec=ntlmssp,cache=strict,username=admin,domain=JANGOFETT,uid=0,noforceuid,gid=0,noforcegid,addr=192.168.86.9,file_mode=0755,dir_mode=0755,nounix,serverino,mapposix,rsize=1048576,wsize=1048576,actimeo=1)

Not sure that it matters... but the order that the UNC/Path is being called in my mount statement is different than yours. What if you used v2.1 using the same order as my mount statement to see?

Been following along. It is a good possibility that the server that is trying to be reached is the issue. I have an old WDCloud that I recently took out of service that only worked at smb1.0. I connect to another remote server that only allows smb3. Your script being hard coded to smb2.1 won't accommodate everyone.

 

[ColinTaylor]

Actually, I am not. Network Place (Samba) Share / Cloud Disk tab says my firmware support SMBv1 + SMBv2 only.

Oh, so you're trying to use a client on one GT-AC2900 and a server on another GT-AC2900?

I am thinking about installing samba4-server - 4.18.0-1 from entware. I found a thread about configuring it on this forum.

There are more recent threads about trying that. It's not entirely straight forward as the inbuilt Samba code conflicts with the Entware version.

 

[Jeffrey Young]

Actually, I am not. Network Place (Samba) Share / Cloud Disk tab says my firmware support SMBv1 + SMBv2 only.

Spoiler: USB Application - Network Place (Samba) Share / Cloud Disk

View attachment 54306

I am thinking about installing samba4-server - 4.18.0-1 from entware. I found a thread about configuring it on this forum.

I think @ColinTaylor is referring to the server; I.e. the NAS; that you are trying to connect to may not support smb2.1. Not the router.

 

[ColinTaylor]

Oh, so you're trying to using a client on one GT-AC2900 and a server on another GT-AC2900?

I've just checked the Samba server on my RT-AX86U and it doesn't support SMB 2.1 (SMB2_10).

PORT    STATE SERVICE      REASON
445/tcp open  microsoft-ds syn-ack ttl 64
MAC Address: F0:2F:74:92:37:D8 (Unknown)

Host script results:
| smb-protocols:
|   dialects:
|     NT LM 0.12 (SMBv1) [dangerous, but default]
|_    2.02

Why do you need SMB 2.1 specifically?

 

[vaboro]

Oh, so you're trying to using a client on one GT-AC2900 and a server on another GT-AC2900?

Well, yes, this is exactly what I am trying to accomplish.

 

[vaboro]

Why do you need SMB 2.1 specifically?

Indeed, I've been asking myself this question. Since, I only need the share to save backups from two routers on the local network, I thought that maybe I can get away with SMB 2.0.

 

[Jeffrey Young]

Well, yes, this is exactly what I am trying to accomplish.

Until @Viktor Jaep can make the script more flexible to various SMB versions, you can always edit the script, find the mount command and change the version to 2.0.

 

[vaboro]

I.e. the NAS; that you are trying to connect to may not support smb2.1

I have two GT-AC2900's. I chose the one that is not exposed to www to store backups of entware's and jffs's from both. Have been using nsrum for backups for what seems like ages. Now thinking about configuring an alternative.

 

[vaboro]

you can always edit the script, find the mount command and change the version to 2.0

Yeah, I already did this But it's a very good script, imho, and a very good job by @Viktor Jaep

 

[Jeffrey Young]

Yeah, I already did this But it's a very good script, imho, and a very good job by @Viktor Jaep

Totally agree. Viktor has put a lot of work into this.

 

[vaboro]

I've just checked the Samba server on my RT-AX86U

Here're the results from my GT-AC2900:

PORT    STATE SERVICE
445/tcp open  microsoft-ds

Host script results:
| smb-os-discovery:
|   OS: Unix (Samba 3.6.25)
|   Computer name: GT-AC2900-2
|   NetBIOS computer name:
|   Domain name:
|   FQDN: GT-AC2900-2.
|_  System time: 2023-11-19T05:14:00+03:00
| smb2-time:
|   date: 1601-01-01T00:00:00
|_  start_date: N/A
|_clock-skew: mean: -51484d17h44m39s, deviation: 89174d01h49m36s, median: -2h59m59s
| smb2-security-mode:
|   2:0:2:
|_    Message signing enabled but not required
|_nbstat: NetBIOS name: GT-AC2900-2, NetBIOS user: <unknown>, NetBIOS MAC: <unknown> (unknown)
| smb-security-mode:
|   account_used: guest
|   authentication_level: user
|   challenge_response: supported
|_  message_signing: disabled (dangerous, but default)