[2024-feb-29] Sad news: Eric Layton aka Nocturnal Slacker aka vtel57 passed away on Feb 26th, shortly after hospitalization. He was one of our Wiki's most prominent admins. He will be missed.

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howtos:slackware_admin:building_the_linux_kernel_using_git_repository [2013/12/19 03:13 (UTC)] – fixed script for EFI systems metaschimahowtos:slackware_admin:building_the_linux_kernel_using_git_repository [2014/11/26 01:08 (UTC)] (current) – Added info about VFAT and EFI partitions metaschima
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 Here is a script that downloads the latest patch for the current running kernel. It assumes you already have an xz compressed tarball in the kernel build directory. Here is a script that downloads the latest patch for the current running kernel. It assumes you already have an xz compressed tarball in the kernel build directory.
 <file bash kernupd> <file bash kernupd>
-#!/bin/bash+#!/bin/sh
  
 error () # error error () # error
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 This option is deprecated in favor of EFI Variable filesystem. It can [[https://lkml.org/lkml/2013/4/16/473|cause data inconsistency issues]] This option is deprecated in favor of EFI Variable filesystem. It can [[https://lkml.org/lkml/2013/4/16/473|cause data inconsistency issues]]
 > **File systems** > **File systems**
-You **MUST** either build-in the driver for the filesystem on which the kernel modules reside **OR** create an initrd, or the kernel will **NOT** boot. +You **MUST** either build-in the driver for the filesystem on which the kernel modules reside **OR** create an initrd, or the kernel will **NOT** boot. You should also build-in the driver for the filesystem on which the kernel itself resides in case it resides on a different filesystem type than the modules e.g. EFI VFAT partition.
->> CD-ROM/DVD Filesystems +
->>> UDF file system support +
-You need this if you plan on reading or writing disks with the UDF filesystem.+
 >> DOS/FAT/NT Filesystems >> DOS/FAT/NT Filesystems
 +>>> MSDOS fs support
 +>>> VFAT (Windows-95) fs support
 +You need these built-in if you use EFI. The kernel will boot if they are modules, but catch22 type situations can easily result.
 >>> NTFS file system support >>> NTFS file system support
 >>> NTFS write support >>> NTFS write support
 You need this if you want to write to NTFS filesystems. You need this if you want to write to NTFS filesystems.
 +>> CD-ROM/DVD Filesystems
 +>>> UDF file system support
 +You need this if you plan on reading or writing disks with the UDF filesystem.
 >>> Miscellaneous filesystems  ---> >>> Miscellaneous filesystems  --->
 >>>> EFI Variable filesystem >>>> EFI Variable filesystem
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 #!/bin/sh #!/bin/sh
 # installs kernel only, this should be run only from the kernel source directory # installs kernel only, this should be run only from the kernel source directory
 +
 +error() # error
 +{
 + echo "ERROR: $1"
 + exit 1
 +}
  
 # make sure we are root # make sure we are root
-if test $HOME != '/root'+if test != '/root'
 then then
- echo 'ERROR: This script must be run as root' >&+ error 'This script must be run as root'
- exit 1+
 fi fi
  
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 # for elilo # for elilo
-if test -d /boot/efi/EFI/Slackware+bootdir="/boot/efi/EFI/Slackware
 +if test -d "$bootdir"
 then then
- cp arch/x86/boot/bzImage /boot/efi/EFI/Slackware/vmlinuz+ cp arch/x86/boot/bzImage "$bootdir"/vmlinuz
 fi fi
  
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  echo 'Kernel installed correctly'  echo 'Kernel installed correctly'
 else else
- echo 'Kernel install failed' + error 'Kernel install failed'
- exit 1+
 fi fi
 if cmp System.map /boot/System.map if cmp System.map /boot/System.map
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  echo 'System.map installed correctly'  echo 'System.map installed correctly'
 else else
- echo 'System.map install failed' + error 'System.map install failed'
- exit 1+
 fi fi
 if cmp .config /boot/config if cmp .config /boot/config
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  echo 'Kernel config installed correctly'  echo 'Kernel config installed correctly'
 else else
- echo 'Kernel config install failed' + error 'Kernel config install failed'
- exit 1+
 fi fi
-if test -d /boot/efi/EFI/Slackware+if test -d "$bootdir"
 then then
- if cmp arch/x86/boot/bzImage /boot/efi/EFI/Slackware/vmlinuz+ if cmp arch/x86/boot/bzImage "$bootdir"/vmlinuz
  then  then
  echo 'kernel installed to EFI correctly'  echo 'kernel installed to EFI correctly'
  else  else
- echo 'kernel install to EFI failed' + error 'kernel install to EFI failed'
- exit 1+
  fi  fi
 fi fi
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   * The lilo.conf excerpt is from the default lilo.conf that comes with Slackware plus a few options.    * The lilo.conf excerpt is from the default lilo.conf that comes with Slackware plus a few options. 
   * Thanks to [[wiki:user:alienbob|Alien Bob]] for his [[howtos:slackware_admin:kernelbuilding|kernel building howto]]. It inspired me to write a restructured and updated kernel building guide.    * Thanks to [[wiki:user:alienbob|Alien Bob]] for his [[howtos:slackware_admin:kernelbuilding|kernel building howto]]. It inspired me to write a restructured and updated kernel building guide. 
 +  * Updated by [[wiki:user:metaschima]]
 <!-- Please do not modify anything below, except adding new tags.--> <!-- Please do not modify anything below, except adding new tags.-->
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 {{tag>howtos author_htexmexh kernel software}} {{tag>howtos author_htexmexh kernel software}}
 howtos:slackware_admin:building_the_linux_kernel_using_git_repository ()