Class: Yast::KernelClass
- Inherits:
-
Module
- Object
- Module
- Yast::KernelClass
- Defined in:
- ../../src/modules/Kernel.rb
Constant Summary
- MODULES_CONF_FILE =
default configuration file for Kernel modules loaded on boot
"yast.conf"
- MODULES_DIR =
directory where configuration for Kernel modules loaded on boot is stored
"/etc/modules-load.d/"
- MODULES_SCR =
SCR path for reading/writing Kernel modules
Path.new(".kernel_modules_to_load")
- PAE_LIMIT =
specifies limit of memory which can be addressed without pae on 32-bit system
3_221_225_472
Instance Method Summary (collapse)
-
- (Object) AddCmdLine(name, arg)
AddCmdLine () add “name=args” to kernel boot parameters add just “name” if args = “”.
-
- (Object) AddModuleToLoad(name)
Add a kernel module to the list of modules to load after boot.
-
- (String) ComputePackage
Compute kernel package.
-
- (Array) ComputePackages
Compute kernel packages.
-
- (Object) ComputePackagesForBase(base, _check_avail)
Compute kernel package for the specified base kernel package.
-
- (void) ExtractCmdlineParameters(line)
Filters out yast2 specific boot parameters and sets Parameters to the important cmdline parts.
-
- (String) GetBinary
Het the name of kernel binary under /boot.
-
- (String) GetCmdLine
Get the kernel command line.
- - (Object) GetFinalKernel
-
- (Object) GetInformAboutKernelChange
Get inform_about_kernel_change.
-
- (Object) GetPackages
Get the list of kernel packages.
-
- (Boolean) GetSuSEUpdate
Check if suse_update kernel command line argument was passed.
-
- (String) GetVgaType
Get the vga= kernel parameter.
-
- (String) HidePasswords(in_)
Hide passwords in command line option string.
-
- (Object) InformAboutKernelChange
Display popup about new kernel that was installed.
-
- (Object) IsGraphicalDesktop
Simple check any graphical desktop was selected.
- - (Object) main
-
- (Boolean) module_to_be_loaded?(kernel_module)
Returns whether the given kernel module is included in list of modules to be loaded on boot.
-
- (Hash) modules_to_load
Returns hash of kernel modules to be loaded on boot - key is the config file - value is list of modules in that particular file.
- - (Object) ParseInstallationKernelCmdline
-
- (void) ProbeKernel
select kernel depending on architecture and system type.
-
- (Object) RemoveModuleToLoad(name)
Remove a kernel module from the list of modules to load after boot.
-
- (Object) reset_modules_to_load
Resets the internal cache.
-
- (Boolean) SaveModulesToLoad
SaveModuleToLoad () save the sysconfig variable to /etc/modules-load.d/*.conf configuration files.
-
- (Object) SetCmdLine(new_cmd_line)
Set the kernel command line FIXME: is heer because of bootloader module, should be removed.
-
- (Object) SetInformAboutKernelChange(b)
Set inform_about_kernel_change.
-
- (Object) SetPackages(custom_kernels)
Set a custom kernel.
-
- (Object) SetVgaType(new_vga)
Set the vga= kernel argument FIXME: is heer because of bootloader module, should be removed.
Instance Method Details
- (Object) AddCmdLine(name, arg)
AddCmdLine () add “name=args” to kernel boot parameters add just “name” if args = “”
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# File '../../src/modules/Kernel.rb', line 154 def AddCmdLine(name, arg) ParseInstallationKernelCmdline() if !@cmdline_parsed @cmdLine = Ops.add(Ops.add(@cmdLine, " "), name) @cmdLine = Ops.add(Ops.add(@cmdLine, "="), arg) if arg != "" Builtins.y2milestone("cmdLine '%1'", HidePasswords(@cmdLine)) nil end |
- (Object) AddModuleToLoad(name)
Add a kernel module to the list of modules to load after boot
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# File '../../src/modules/Kernel.rb', line 582 def AddModuleToLoad(name) Builtins.y2milestone("Adding module to be loaded at boot: %1", name) @modules_to_load[MODULES_CONF_FILE] << name unless module_to_be_loaded?(name) end |
- (String) ComputePackage
Compute kernel package
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# File '../../src/modules/Kernel.rb', line 470 def ComputePackage packages = GetPackages() the_kernel = Ops.get(packages, 0, "") Builtins.y2milestone("Selecting '%1' as kernel package", the_kernel) # Check for provided kernel packages in installed system if Mode.normal || Mode.repair while the_kernel != "" && !Pkg.PkgInstalled(the_kernel) the_kernel = Ops.get(@fallbacks, the_kernel, "") Builtins.y2milestone("Not provided, falling back to '%1'", the_kernel) end else while the_kernel != "" && !Pkg.PkgAvailable(the_kernel) the_kernel = Ops.get(@fallbacks, the_kernel, "") Builtins.y2milestone( "Not available, falling back to '%1'", the_kernel ) end end if the_kernel != "" @final_kernel = the_kernel else Builtins.y2warning( "%1 not available, using kernel-default", @kernel_packages ) @final_kernel = "kernel-default" end @final_kernel end |
- (Array) ComputePackages
Compute kernel packages
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# File '../../src/modules/Kernel.rb', line 525 def ComputePackages kernel = ComputePackage() ret = ComputePackagesForBase(kernel, true) if Ops.greater_than(Builtins.size(@kernel_packages), 1) # get the extra packages extra_pkgs = Builtins.remove(@kernel_packages, 0) # add available extra packages Builtins.foreach(extra_pkgs) do |pkg| if Pkg.IsAvailable(pkg) ret = Builtins.add(ret, pkg) Builtins.y2milestone("Added extra kernel package: %1", pkg) else Builtins.y2warning( "Extra kernel package '%1' is not available", pkg ) end end end Builtins.y2milestone("Computed kernel packages: %1", ret) deep_copy(ret) end |
- (Object) ComputePackagesForBase(base, _check_avail)
Compute kernel package for the specified base kernel package
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# File '../../src/modules/Kernel.rb', line 515 def ComputePackagesForBase(base, _check_avail) # Note: kernel-*-nongpl packages have been dropped, use base only ret = [base] Builtins.y2milestone("Packages for base %1: %2", base, ret) deep_copy(ret) end |
- (void) ExtractCmdlineParameters(line)
This method returns an undefined value.
Filters out yast2 specific boot parameters and sets Parameters to the important cmdline parts.
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# File '../../src/modules/Kernel.rb', line 167 def ExtractCmdlineParameters(line) # discard \n line = Builtins.deletechars(line, "\n") # list of parameters to be discarded (yast internals) discardlist = [] cmdlist = [] parse_index = 0 in_quotes = false after_backslash = false current_param = "" while Ops.less_than(parse_index, Builtins.size(line)) current_char = Builtins.substring(line, parse_index, 1) in_quotes = !in_quotes if current_char == "\"" && !after_backslash if current_char == " " && !in_quotes cmdlist = Builtins.add(cmdlist, current_param) current_param = "" else current_param = Ops.add(current_param, current_char) end if current_char == "\\" after_backslash = true else after_backslash = false end parse_index = Ops.add(parse_index, 1) end cmdlist = Builtins.add(cmdlist, current_param) # this is wrong because of eg. >>o="p a r a m"<<, see bugzilla 26147 # list cmdlist = splitstring (line, " "); # some systems (pseries) can autodetect the serial console if Builtins.contains(cmdlist, "AUTOCONSOLE") discardlist = Builtins.add(discardlist, "console") discardlist = Builtins.add(discardlist, "AUTOCONSOLE") end # add special key filtering for s390 # bnc#462276 Extraneous parameters in /etc/zipl.conf from the installer if Arch.s390 discardlist = Builtins.add(discardlist, "User") discardlist = Builtins.add(discardlist, "init") discardlist = Builtins.add(discardlist, "ramdisk_size") end # backdoor to re-enable update on UL/SLES if Builtins.contains(cmdlist, "suse_update") discardlist = Builtins.add(discardlist, "suse_update") @suse_update = true end Builtins.foreach(cmdlist) do |parameter| # split "key=value" to ["key", "value"] param_value_list = Builtins.splitstring(parameter, "=") key = Ops.get(param_value_list, 0, "") value = Ops.get(param_value_list, 1, "") # now only collect keys not in discardlist if Ops.greater_than(Builtins.size(param_value_list), 0) if !Builtins.contains(discardlist, key) if Ops.get(param_value_list, 0, "") == "vga" if Builtins.regexpmatch(value, "^(0x)?[0-9a-fA-F]+$") || Builtins.contains(["normal", "ext", "ask"], value) @vgaType = value else Builtins.y2warning("Incorrect VGA kernel parameter: %1", value) end else AddCmdLine(key, value) end end end end nil end |
- (String) GetBinary
Het the name of kernel binary under /boot
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# File '../../src/modules/Kernel.rb', line 456 def GetBinary ProbeKernel() if !@kernel_probed @binary end |
- (String) GetCmdLine
Get the kernel command line
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# File '../../src/modules/Kernel.rb', line 289 def GetCmdLine ParseInstallationKernelCmdline() if !@cmdline_parsed @cmdLine end |
- (Object) GetFinalKernel
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# File '../../src/modules/Kernel.rb', line 504 def GetFinalKernel ComputePackage() if @final_kernel == "" @final_kernel end |
- (Object) GetInformAboutKernelChange
Get inform_about_kernel_change.
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# File '../../src/modules/Kernel.rb', line 645 def GetInformAboutKernelChange @inform_about_kernel_change end |
- (Object) GetPackages
Get the list of kernel packages
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# File '../../src/modules/Kernel.rb', line 463 def GetPackages ProbeKernel() if !@kernel_probed deep_copy(@kernel_packages) end |
- (Boolean) GetSuSEUpdate
Check if suse_update kernel command line argument was passed
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# File '../../src/modules/Kernel.rb', line 282 def GetSuSEUpdate ParseInstallationKernelCmdline() if !@cmdline_parsed @suse_update end |
- (String) GetVgaType
Get the vga= kernel parameter
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# File '../../src/modules/Kernel.rb', line 266 def GetVgaType ParseInstallationKernelCmdline() if !@cmdline_parsed @vgaType end |
- (String) HidePasswords(in_)
Hide passwords in command line option string
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# File '../../src/modules/Kernel.rb', line 119 def HidePasswords(in_) ret = "" if !in_.nil? parts = Builtins.splitstring(in_, " ") first = true Builtins.foreach(parts) do |p| cmdopt = p if Builtins.regexpmatch(p, "^INST_PASSWORD=") cmdopt = "INST_PASSWORD=******" elsif Builtins.regexpmatch(p, "^FTPPASSWORD=") cmdopt = "FTPPASSWORD=********" end if first first = false else ret = Ops.add(ret, " ") end ret = Ops.add(ret, cmdopt) end else ret = nil end ret end |
- (Object) InformAboutKernelChange
Display popup about new kernel that was installed
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# File '../../src/modules/Kernel.rb', line 650 def InformAboutKernelChange if GetInformAboutKernelChange() # inform the user that he/she has to reboot to activate new kernel Popup.Message(_("Reboot your system\nto activate the new kernel.\n")) end @inform_about_kernel_change end |
- (Object) IsGraphicalDesktop
Simple check any graphical desktop was selected
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# File '../../src/modules/Kernel.rb', line 304 def IsGraphicalDesktop # Get patterns set for installation during desktop selection # (see DefaultDesktop::packages_proposal_ID_patterns for the first argument) pt = PackagesProposal.GetResolvables("DefaultDesktopPatterns", :pattern) Builtins.contains(pt, "x11") end |
- (Object) main
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# File '../../src/modules/Kernel.rb', line 50 def main Yast.import "Pkg" Yast.import "Arch" Yast.import "Mode" Yast.import "Linuxrc" Yast.import "PackagesProposal" Yast.import "Popup" Yast.import "Stage" Yast.import "FileUtils" textdomain "base" # kernel packages and binary @kernel_probed = false # the name of the kernel binary below '/boot'. @binary = "vmlinuz" # a list kernels to be installed. @kernel_packages = [] # the final kernel to be installed after verification and # availability checking @final_kernel = "" # kernel commandline @cmdline_parsed = false # string the kernel vga paramter @vgaType = "" # if "suse_update" given in cmdline @suse_update = false # string the kernel command line # Don't write it directly, @see: AddCmdLine() @cmdLine = "" # modules loaded on boot # Kernel modules configured to be loaded on boot @modules_to_load = nil @modules_to_load_old = nil # kernel was reinstalled # A flag to indicate if a popup informing about the kernel change should be displayed @inform_about_kernel_change = false # other variables # fallback map for kernel @fallbacks = { "kernel-pae" => "kernel-default", "kernel-desktop" => "kernel-default", # fallback for PPC (#302246) "kernel-iseries64" => "kernel-ppc64" } end |
- (Boolean) module_to_be_loaded?(kernel_module)
Returns whether the given kernel module is included in list of modules to be loaded on boot
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# File '../../src/modules/Kernel.rb', line 576 def module_to_be_loaded?(kernel_module) modules_to_load.values.any? { |m| m.include?(kernel_module) } end |
- (Hash) modules_to_load
Returns hash of kernel modules to be loaded on boot - key is the config file - value is list of modules in that particular file
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# File '../../src/modules/Kernel.rb', line 565 def modules_to_load read_modules_to_load if @modules_to_load.nil? @modules_to_load end |
- (Object) ParseInstallationKernelCmdline
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# File '../../src/modules/Kernel.rb', line 247 def ParseInstallationKernelCmdline @cmdline_parsed = true return if !(Stage.initial || Stage.cont) tmp = Convert.to_string(SCR.Read(path(".etc.install_inf.Cmdline"))) Builtins.y2milestone( "cmdline from install.inf is: %1", HidePasswords(tmp) ) if !tmp.nil? # extract extra boot parameters given in installation ExtractCmdlineParameters(tmp) end nil end |
- (void) ProbeKernel
This method returns an undefined value.
select kernel depending on architecture and system type.
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# File '../../src/modules/Kernel.rb', line 318 def ProbeKernel kernel_desktop_exists = (Mode.normal || Mode.repair) && Pkg.PkgInstalled("kernel-desktop") || Pkg.PkgAvailable("kernel-desktop") Builtins.y2milestone( "Desktop kernel available: %1", kernel_desktop_exists ) @kernel_packages = ["kernel-default"] # add Xen paravirtualized drivers to a full virtualized host xen = Convert.to_boolean(SCR.Read(path(".probe.is_xen"))) if xen.nil? Builtins.y2warning("XEN detection failed, assuming XEN is NOT running") xen = false end Builtins.y2milestone("Detected XEN: %1", xen) if Arch.is_uml Builtins.y2milestone("ProbeKernel: UML") @kernel_packages = ["kernel-um"] elsif Arch.is_xen # kernel-xen contains PAE kernel (since oS11.0) @kernel_packages = ["kernel-xen"] elsif Arch.i386 # get flags from WFM /proc/cpuinfo (for pae and tsc tests below) cpuinfo_flags = Convert.to_string( SCR.Read(path(".proc.cpuinfo.value.\"0\".\"flags\"")) ) # check only first processor cpuflags = [] # bugzilla #303842 if !cpuflags.nil? cpuflags = cpuinfo_flags.empty? ? [] : cpuinfo_flags.split(" ") else Builtins.y2error("Cannot read cpuflags") Builtins.y2milestone( "Mounted: %1", SCR.Execute(path(".target.bash_output"), "mount -l") ) end # check for "roughly" >= 4GB memory (see bug #40729) memories = Convert.to_list(SCR.Read(path(".probe.memory"))) memsize = Ops.get_integer( memories, [0, "resource", "phys_mem", 0, "range"], 0 ) Builtins.y2milestone("Physical memory %1", memsize) # for memory > 4GB and PAE support we install kernel-pae, # PAE kernel is needed if NX flag exists as well (bnc#467328) if (Ops.greater_or_equal(memsize, PAE_LIMIT) || Builtins.contains(cpuflags, "nx")) && Builtins.contains(cpuflags, "pae") Builtins.y2milestone("Kernel switch: PAE detected") if kernel_desktop_exists && IsGraphicalDesktop() @kernel_packages = ["kernel-desktop"] # add PV drivers if xen Builtins.y2milestone("Adding Xen PV drivers: xen-kmp-desktop") @kernel_packages = Builtins.add( @kernel_packages, "xen-kmp-desktop" ) end else @kernel_packages = ["kernel-pae"] # add PV drivers if xen Builtins.y2milestone("Adding Xen PV drivers: xen-kmp-pae") @kernel_packages = Builtins.add(@kernel_packages, "xen-kmp-pae") end end else # add PV drivers if xen Builtins.y2milestone("Adding Xen PV drivers: xen-kmp-default") @kernel_packages = Builtins.add(@kernel_packages, "xen-kmp-default") end end elsif Arch.x86_64 if kernel_desktop_exists && IsGraphicalDesktop() @kernel_packages = ["kernel-desktop"] if xen Builtins.y2milestone("Adding Xen PV drivers: xen-kmp-desktop") @kernel_packages = Builtins.add(@kernel_packages, "xen-kmp-desktop") end else if xen Builtins.y2milestone("Adding Xen PV drivers: xen-kmp-default") @kernel_packages = Builtins.add(@kernel_packages, "xen-kmp-default") end end elsif Arch.ppc @binary = "vmlinux" if Arch.board_iseries @kernel_packages = ["kernel-iseries64"] elsif Arch.ppc32 @kernel_packages = ["kernel-default"] else @kernel_packages = ["kernel-ppc64"] end elsif Arch.ia64 @kernel_packages = ["kernel-default"] elsif Arch.s390 @kernel_packages = ["kernel-default"] @binary = "image" end @kernel_probed = true Builtins.y2milestone("ProbeKernel determined: %1", @kernel_packages) nil end |
- (Object) RemoveModuleToLoad(name)
Remove a kernel module from the list of modules to load after boot
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# File '../../src/modules/Kernel.rb', line 590 def RemoveModuleToLoad(name) modules_to_load return true unless module_to_be_loaded?(name) Builtins.y2milestone("Removing module to be loaded at boot: %1", name) @modules_to_load.each do |_key, val| val.delete(name) end end |
- (Object) reset_modules_to_load
Resets the internal cache
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# File '../../src/modules/Kernel.rb', line 556 def reset_modules_to_load @modules_to_load = nil end |
- (Boolean) SaveModulesToLoad
SaveModuleToLoad () save the sysconfig variable to /etc/modules-load.d/*.conf configuration files
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# File '../../src/modules/Kernel.rb', line 604 def SaveModulesToLoad modules_to_load unless FileUtils.Exists(MODULES_DIR) log.warn "Directory #{MODULES_DIR} does not exist, creating" unless SCR::Execute(path(".target.mkdir"), MODULES_DIR) log.error "Cannot create directory #{MODULES_DIR}" return false end end success = true @modules_to_load.each do |file, modules| # The content hasn't changed next if (modules.sort == @modules_to_load_old[file].sort) if !register_modules_agent(file) Builtins.y2error("Cannot register new SCR agent for #{file_path} file") success = false next end SCR::Write(MODULES_SCR, modules) SCR.UnregisterAgent(MODULES_SCR) end success end |
- (Object) SetCmdLine(new_cmd_line)
Set the kernel command line FIXME: is heer because of bootloader module, should be removed
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# File '../../src/modules/Kernel.rb', line 296 def SetCmdLine(new_cmd_line) ParseInstallationKernelCmdline() if !@cmdline_parsed @cmdLine = new_cmd_line nil end |
- (Object) SetInformAboutKernelChange(b)
Set inform_about_kernel_change.
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# File '../../src/modules/Kernel.rb', line 638 def SetInformAboutKernelChange(b) @inform_about_kernel_change = b nil end |
- (Object) SetPackages(custom_kernels)
Set a custom kernel.
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# File '../../src/modules/Kernel.rb', line 443 def SetPackages(custom_kernels) custom_kernels = deep_copy(custom_kernels) # probe to avoid later probing ProbeKernel() if !@kernel_probed @kernel_packages = deep_copy(custom_kernels) nil end |
- (Object) SetVgaType(new_vga)
Set the vga= kernel argument FIXME: is heer because of bootloader module, should be removed
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# File '../../src/modules/Kernel.rb', line 273 def SetVgaType(new_vga) ParseInstallationKernelCmdline() if !@cmdline_parsed @vgaType = new_vga nil end |