[Bug 1141033] [NEW] text install: kernel selection failiure when sharring boot device

[Sylvain Dansereau]

Public bug reported:


I beleive I have found an issue between live-installer and base-installer packages.
specifically in files live-installer.postinst (live-installer) and library.sh (base-installer)

I am using the quantal server iso and attempting a preseeded text based install
I notice that when installing from a brand new disk (a VM in this case), the kernel gets installed properrly in the target but when installing on a system sharing /boot with another installation, /target/boot/vmlinu*  files exists and the kernel does not get installed in the target.


>From what I could understand, starting from version 36ubuntu5, the live-installer.postinst script now uses this procedure

pick_kernel_if_missing () {
	for kernel in /target/boot/vmlinu*; do
		if [ -e "$kernel" ]; then
			info "Kernel already present ($kernel)"
			return
		fi
	done
	pick_kernel
}


>From what I can tell,  since /target/boot/vmlinu* exists, 
pick_kernel never gets called thus the installer is never setting the KERNEL variable to some usefull value
also, these preseeded values neger get used:
base-installer/kernel/override-image
base-installer/kernel/image
base-installer/kernel/skip-install


Later when the procedure install_kernel is called, the KERNEL variable is empty and errors are loged
 
Mar  2 16:55:44 live-installer: update-initramfs: Generating /boot/initrd.img-3.5.0-17-generic
Mar  2 16:55:44 live-installer: grep: /boot/config-3.5.0-17-generic
Mar  2 16:55:44 live-installer: : No such file or directory
Mar  2 16:55:44 live-installer: WARNING: missing /lib/modules/3.5.0-17-generic
Mar  2 16:55:44 live-installer: Device driver support needs thus be built-in linux image!
Mar  2 16:55:44 live-installer: WARNING: Couldn't open directory /lib/modules/3.5.0-17-generic: No such file or directory
Mar  2 16:55:44 live-installer: FATAL: Could not open /lib/modules/3.5.0-17-generic/modules.dep.temp for writing: No such file or directory
Mar  2 16:55:44 live-installer: FATAL: Could not load /lib/modules/3.5.0-17-generic/modules.dep: No such file or directory
Mar  2 16:55:44 live-installer: FATAL: Could not load /lib/modules/3.5.0-17-generic/modules.dep: No such file or directory
Mar  2 16:55:44 live-installer: FATAL: Could not load /lib/modules/3.5.0-17-generic/modules.dep: No such file or directory
Mar  2 16:55:44 live-installer: FATAL: Could not load /lib/modules/3.5.0-17-generic/modules.dep: No such file or directory

Mar  2 16:55:47 base-installer: info: Kernel already present (/target/boot/vmlinuz-2.6.31-19-generic)
Mar  2 16:55:47 base-installer: warning: Failed to get debconf answer 'base-installer/kernel/linux/initrd'.
Mar  2 16:55:47 base-installer: info: Setting do_initrd='yes'.
Mar  2 16:55:47 base-installer: info: Setting link_in_boot='no'.

** Affects: live-installer (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1141033

Title:
  text install: kernel selection failiure when sharring boot device

Status in “live-installer” package in Ubuntu:
  New

Bug description:
  
  I beleive I have found an issue between live-installer and base-installer packages.
  specifically in files live-installer.postinst (live-installer) and library.sh (base-installer)

  I am using the quantal server iso and attempting a preseeded text based install
  I notice that when installing from a brand new disk (a VM in this case), the kernel gets installed properrly in the target but when installing on a system sharing /boot with another installation, /target/boot/vmlinu*  files exists and the kernel does not get installed in the target.

  
  From what I could understand, starting from version 36ubuntu5, the live-installer.postinst script now uses this procedure

  pick_kernel_if_missing () {
  	for kernel in /target/boot/vmlinu*; do
  		if [ -e "$kernel" ]; then
  			info "Kernel already present ($kernel)"
  			return
  		fi
  	done
  	pick_kernel
  }

  
  From what I can tell,  since /target/boot/vmlinu* exists, 
  pick_kernel never gets called thus the installer is never setting the KERNEL variable to some usefull value
  also, these preseeded values neger get used:
  base-installer/kernel/override-image
  base-installer/kernel/image
  base-installer/kernel/skip-install

  
  Later when the procedure install_kernel is called, the KERNEL variable is empty and errors are loged
   
  Mar  2 16:55:44 live-installer: update-initramfs: Generating /boot/initrd.img-3.5.0-17-generic
  Mar  2 16:55:44 live-installer: grep: /boot/config-3.5.0-17-generic
  Mar  2 16:55:44 live-installer: : No such file or directory
  Mar  2 16:55:44 live-installer: WARNING: missing /lib/modules/3.5.0-17-generic
  Mar  2 16:55:44 live-installer: Device driver support needs thus be built-in linux image!
  Mar  2 16:55:44 live-installer: WARNING: Couldn't open directory /lib/modules/3.5.0-17-generic: No such file or directory
  Mar  2 16:55:44 live-installer: FATAL: Could not open /lib/modules/3.5.0-17-generic/modules.dep.temp for writing: No such file or directory
  Mar  2 16:55:44 live-installer: FATAL: Could not load /lib/modules/3.5.0-17-generic/modules.dep: No such file or directory
  Mar  2 16:55:44 live-installer: FATAL: Could not load /lib/modules/3.5.0-17-generic/modules.dep: No such file or directory
  Mar  2 16:55:44 live-installer: FATAL: Could not load /lib/modules/3.5.0-17-generic/modules.dep: No such file or directory
  Mar  2 16:55:44 live-installer: FATAL: Could not load /lib/modules/3.5.0-17-generic/modules.dep: No such file or directory

  Mar  2 16:55:47 base-installer: info: Kernel already present (/target/boot/vmlinuz-2.6.31-19-generic)
  Mar  2 16:55:47 base-installer: warning: Failed to get debconf answer 'base-installer/kernel/linux/initrd'.
  Mar  2 16:55:47 base-installer: info: Setting do_initrd='yes'.
  Mar  2 16:55:47 base-installer: info: Setting link_in_boot='no'.

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