Troubleshooting
If things aren’t working the way you think they should, there area
few common mistakes and missed steps. Be sure to check all of the
following suggestions:
• Is the
correct type
of microSD card in the slot, and is it mak-
ing a good connection?
• Try copying the disk again with another card reader.
• Run a Secure Hash Algorithm (SHA) check sum utility on
the disk image and comparing the result to the 40-character
hash published on the download page.
• Is the Pi restarting or having intermittent problems? Check
your power supply; an underpowered board may seem to
work but act flaky.
• Do you get a kernel panic on startup? A kernel panic is the
equivalent of Windows’ Blue Screen of Death; it’s most often
caused by a problem with a device on the USB hub. Try un-
plugging USB devices and restarting.
If that all fails, head over to the Raspberry Pi Hub’s troubleshooting
page (elinux.org/R-Pi_Troubleshooting) for solutions to all sorts of
problems people have had.
Which Board Do You Have?
If you’re asking for help in an email or on a forum, it can be helpful
to those assisting you if you know exactly what version of the
operating system and which board you’re using. To find out the OS
version, open LXTerminal, and type:
cat/proc/version
To find your board version, type:
cat/proc/cpuinfo
26 Getting Started with Raspberry Pi
GSW_RASPI_4ED_FIN.indd 26GSW_RASPI_4ED_FIN.indd 26 10/28/21 10:53 AM10/28/21 10:53 AM
Going Further
The Raspberry Pi Hub
(elinux.org/RPi_Hub)
Hosted by elinux.org, this is a massive wiki of information on
the Pi’s hardware and configuration.
List of Verified Peripherals (elinux.org/RPi_VerifiedPeripherals)
The definitive list of peripherals known to work with the
Raspberry Pi.
Getting Up and Running 27
GSW_RASPI_4ED_FIN.indd 27GSW_RASPI_4ED_FIN.indd 27 10/28/21 10:53 AM10/28/21 10:53 AM
GSW_RASPI_4ED_FIN.indd 28GSW_RASPI_4ED_FIN.indd 28 10/28/21 10:53 AM10/28/21 10:53 AM
..................Content has been hidden....................

You can't read the all page of ebook, please click here login for view all page.
Reset