# Troubleshoot Kernel Module Loading Issues
**URL:** https://forum.legato.io/t/troubleshoot-kernel-module-loading-issues/4374
**Category:** Legato Application Framework
**Created:** [May 29, 2019, 11:35pm UTC](https://forum.legato.io/t/troubleshoot-kernel-module-loading-issues/4374 "2019-05-29T23:35:58Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@dbeckwith](https://forum.legato.io/u/dbeckwith)
#### Post date: [May 29, 2019, 11:35pm UTC](https://forum.legato.io/t/troubleshoot-kernel-module-loading-issues/4374/1 "2019-05-29T23:35:58Z")
Being new to Legato and embedded Linux development how does one go about troubleshooting kernel module loading issues or other startup issues for that if the ssh connection is closed during boot?
Note this is on a custom board.
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### Author:  [@jyijyi](https://forum.legato.io/u/jyijyi)
#### Post date: [May 30, 2019, 12:21am UTC](https://forum.legato.io/t/troubleshoot-kernel-module-loading-issues/4374/2 "2019-05-30T00:21:56Z")
You can see the debug message in uart.
Or you can see if dmesg showing anything to you.
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### Author:  [@dbeckwith](https://forum.legato.io/u/dbeckwith)
#### Post date: [May 30, 2019, 2:22am UTC](https://forum.legato.io/t/troubleshoot-kernel-module-loading-issues/4374/3 "2019-05-30T02:22:26Z")
@jyijyi Which UART, UART1 or UART2?
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### Author:  [@jyijyi](https://forum.legato.io/u/jyijyi)
#### Post date: [May 30, 2019, 2:44am UTC](https://forum.legato.io/t/troubleshoot-kernel-module-loading-issues/4374/4 "2019-05-30T02:44:57Z")
you have to check by AT!MAPUART?
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### Author:  [@dbeckwith](https://forum.legato.io/u/dbeckwith)
#### Post date: [May 30, 2019, 3:04am UTC](https://forum.legato.io/t/troubleshoot-kernel-module-loading-issues/4374/5 "2019-05-30T03:04:54Z")
@jyijyi Nope as, I said I’m new at this level of debugging. I will check that command thanks. Is there a document you know of that details more about this level of troubleshooting?
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### Author:  [@jyijyi](https://forum.legato.io/u/jyijyi)
#### Post date: [May 30, 2019, 3:30am UTC](https://forum.legato.io/t/troubleshoot-kernel-module-loading-issues/4374/6 "2019-05-30T03:30:17Z")
for AT!MAPUART, you can check the AT command user guide.