lorax/pseudo/x86.pseudo.py

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2011-03-03 13:26:03 +00:00
# x86.pseudo.py
##### constants #####
ANABOOTDIR = "usr/share/anaconda/boot"
ISOLINUXDIR = "isolinux"
IMAGESDIR = "images"
PXEBOOTDIR = "images/pxeboot"
ISOLINUX_BIN = "usr/share/syslinux/isolinux.bin"
SYSLINUX_CFG = "usr/share/anaconda/boot/syslinux.cfg"
ISOHYBRID = "isohybrid"
IMPLANTISOMD5 = "implantisomd5"
##### main() #####
""" kernellist, installroot, outputroot, product, version, treeinfo, bootiso,
basearch, uefi_boot_iso
"""
# create directories
makedirs(joinpaths(outputroot, ISOLINUXDIR))
makedirs(joinpaths(outputroot, PXEBOOTDIR))
# check for isolinux.bin
isolinux_bin = joinpaths(installroot, ISOLINUX_BIN)
if (not exists(isolinux_bin)):
# XXX fatal?
raise Exception("isolinux.bin not present")
# copy isolinux.bin to isolinux dir
copy(isolinux_bin, joinpaths(outputroot, ISOLINUXDIR))
# copy syslinux.cfg to isolinux dir (XXX rename to isolinux.cfg)
isolinux_cfg = copy(joinpaths(installroot, SYSLINUX_CFG),
joinpaths(outputroot, ISOLINUXDIR, "isolinux.cfg"))
replace(isolinux_cfg, "@PRODUCT@", product)
replace(isolinux_cfg, "@VERSION@", version)
# copy memtest (XXX not from installroot/boot ?
memtest = glob(joinpaths(installroot, ANABOOTDIR, "memtest*"))
if memtest:
copy(memtest[-1], joinpaths(outputroot, ISOLINUXDIR, "memtest"))
with open(isolinux_cfg, "a") as f:
f.write("label memtest86\n")
f.write(" menu label ^Memory test\n")
f.write(" kernel memtest\n")
f.write(" append -\n")
# copy *.msg files
msgfiles = glob(joinpaths(installroot, ANABOOTDIR, "*.msg"))
if (not msgfiles):
raise Exception("message files not present")
for source_path in msgfiles:
target_path = copy(source_path, joinpaths(outputroot, ISOLINUXDIR))
replace(target_path, "@VERSION@", version)
# copy syslinux vesa splash and vesamenu.c32
splash = joinpaths(installroot, ANABOOTDIR, "syslinux-vesa-splash.jpg")
if (not exists(splash)):
raise Exception("syslinux-vesa-splash.jpg not present")
splash = copy(splash, joinpaths(outputroot, ISOLINUXDIR, "splash.jpg"))
copy(joinpaths(installroot, "usr/share/syslinux/vesamenu.c32"),
joinpaths(outputroot, ISOLINUXDIR))
# set up isolinux.cfg
replace(isolinux_cfg, "default linux", "default vesamenu.c32")
replace(isolinux_cfg, "prompt 1", "#prompt 1")
# copy grub.conf
grubconf = copy(joinpaths(installroot, ANABOOTDIR, "grub.conf"),
joinpaths(outputroot, ISOLINUXDIR))
replace(grubconf, "@PRODUCT@", product)
replace(grubconf, "@VERSION@", version)
# create images
for kernel in kernellist:
# set up file names
suffix = ""
if (kernel.type == K_PAE):
suffix = "-PAE"
elif (kernel.type == K_XEN):
suffix = "-XEN"
kernel.fname = "vmlinuz%s" % suffix
if (not suffix):
# copy kernel to isolinux dir
kernel.fpath = copy(kernel.fpath,
joinpaths(outputroot, ISOLINUXDIR, kernel.fname))
# create link in pxeboot dir
os.link(kernel.fpath, joinpaths(outputroot, PXEBOOTDIR, kernel.fname))
else:
# copy kernel to pxeboot dir
kernel.fpath = copy(kernel.fpath,
joinpaths(outputroot, PXEBOOTDIR, kernel.fname))
# create and copy initrd to pxeboot dir
initrd_fname = "initrd%s.img" % suffix
initrd_fpath = copy(create_initrd(kernel),
joinpaths(outputroot, PXEBOOTDIR, initrd_fname))
if (not suffix):
# create link in isolinux dir
os.link(initrd_fpath, joinpaths(outputroot, ISOLINUXDIR, initrd_fname))
# add kernel and initrd to .treeinfo
with open(treeinfo, "a") as f:
f.write("[images-%s]\n" % "xen" if suffix else basearch)
f.write("kernel = %s\n" % joinpaths(PXEBOOTDIR, kernel.fname))
f.write("initrd = %s\n" % joinpaths(PXEBOOTDIR, initrd_fname))
if (not suffix):
# add boot.iso to .treeinfo
with open(treeinfo, "a") as f:
f.write("boot.iso = %s\n" % joinpaths(IMAGESDIR, bootiso))
if (bootiso):
# define efiargs and efigraft
efiargs, efigraft = [], []
if (uefi_boot_iso and
exists(joinpaths(outputroot, IMAGESDIR, "efiboot.img"))):
efiargs = ["-eltorito-alt-boot", "-e",
joinpaths(IMAGESDIR, "efiboot.img"), "-no-emul-boot"]
efigraft = ["EFI/BOOT=%s/EFI/BOOT" % outputroot]
# create boot.iso
bootiso_fpath = joinpaths(outputroot, IMAGESDIR, bootiso)
# run mkisofs
rc = exec([MKISOFS, "-v", "-o", bootiso_fpath, "-b",
"%s/isolinux.bin" % ISOLINUXDIR, "-c",
"%s/boot.cat" % ISOLINUXDIR, "-no-emul-boot", "-boot-load-size",
"4", "-boot-info-table"] + EFIARGS + ["-R", "-J", "-V",
"'%s'" % product, "-T", "-graft-points",
"isolinux=%s" % joinpaths(outputroot, ISOLINUXDIR),
"images=%s" % joinpaths(outputroot, IMAGESDIR)] + EFIGRAFT)
if (exists(ISOHYBRID)):
# run isohybrid
rc = exec([ISOHYBRID, bootiso_fpath])
# run implantisomd5
rc = exec([IMPLANTISOMD5, bootiso_fpath])