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oglive-builder
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oglive-builder/boottoolsfunctions/__init__.py

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import platform
import os
import re
import time
import logging
import subprocess
import shutil
import glob
import datetime
logger = logging.getLogger ('boottools')
isolinux_tpl = """
DEFAULT menu.c32
PROMPT 0
ALLOWOPTIONS 1
MENU TITLE OpenGnsys __NAMEISOCLIENT__
LABEL 0
MENU LABEL ogLive vga irqpool acpi ogdebug ip:none
KERNEL /ogclient/linuxISO
APPEND initrd=/ogclient/oginitrd.img ro vga=788 irqpoll acpi=on boot=oginit og2nd=sqfs ogprotocol=local ogactiveadmin=true ogdebug=true ip=none
LABEL 1
MENU LABEL ogLive irqpoll acpi ip:none
KERNEL /ogclient/linuxISO
APPEND initrd=/ogclient/oginitrd.img ro irqpoll acpi=on boot=oginit og2nd=sqfs ogprotocol=local ogactiveadmin=true ogdebug=false ip=none
LABEL 2
MENU LABEL ogLive acpi debug ip=dhcp
KERNEL /ogclient/linuxISO
APPEND initrd=/ogclient/oginitrd.img ro acpi=on boot=oginit og2nd=sqfs ogprotocol=local ogactiveadmin=true ogdebug=true ip=dhcp
LABEL 3
MENU LABEL ogLive ip=dhcp
KERNEL /ogclient/linuxISO
APPEND initrd=/ogclient/oginitrd.img ro acpi=off boot=oginit og2nd=sqfs ogprotocol=local ogactiveadmin=true ogdebug=false ip=dhcp
LABEL 4
MENU LABEL local
localboot 0x80
append -
label 5
MENU LABEL Network boot via gPXE lkrn
KERNEL __PXEPKG__.lkrn
label 6
MENU LABEL Network boot via gPXE usb
KERNEL __PXEPKG__.usb
label 7
MENU LABEL Network boot via gPXE pxe
KERNEL __PXEPKG__.pxe
label 8
MENU LABEL Network boot via gPXE iso
KERNEL __PXEPKG__.iso
label 9
MENU LABEL pxe
KERNEL /clonezilla/live/vmlinuz1
APPEND initrd=/clonezilla/live/initrd1.img boot=live union=aufs noswap vga=788 ip=frommedia
"""
def _run (args):
cp = subprocess.run (args, text=True, capture_output=True)
if cp.returncode:
logger.error ('command "{}" failed with rc "{}"'.format (' '.join(args), cp.returncode))
logger.error ('stdout follows:')
for i in cp.stdout.strip().split('\n'): logger.error (' ' + i)
logger.error ('stderr follows:')
for i in cp.stderr.strip().split('\n'): logger.error (' ' + i)
raise Exception ('command "{}" failed with rc "{}"'.format (' '.join(args), cp.returncode))
stdout = cp.stdout.strip()
stderr = cp.stderr.strip()
return stdout, stderr
def _grep (regex, file):
with open (file, 'r') as f:
for l in f:
if (re.findall (regex, l)): return 1
return 0
def _is_mounted (mntpt):
return _grep (mntpt, '/proc/mounts')
def _umount (mntpt):
if (_is_mounted (mntpt)):
_run (['umount', mntpt])
def btogGetVar (osarch):
btdir = '/tmp/opengnsys_installer/opengnsys/client/boot-tools'
bttargetdir = '/var/lib/tftpboot/ogclient/'
btrootfsimg = os.path.join (bttargetdir, 'ogclient.img')
btrootfsmnt = os.path.join (bttargetdir, 'ogclientmount')
btrootfsimglabel = 'ogClient'
log_file = '/tmp/boot-tools_installation.log'
versionboottools = 'ogLive'
if 'i386' == osarch:
btvirtualdisksize = '2000' # tamaño maximo limitado por schroot 2GB para 32 bits
else:
btvirtualdisksize = '3G'
return btdir, bttargetdir, btrootfsimg, btrootfsmnt, btrootfsimglabel, log_file, versionboottools, btvirtualdisksize
def btogGetOsInfo1 (type_client):
ogclientcfg = '/tmp/ogclient.cfg'
if 'precise' == type_client: # ogLive 1.0.4-rc2 basado en Ubuntu 12.04 LTS.
osdistrib='ubuntu'
oscodename='precise'
osrelease='3.2.0-23-generic'
osarch='i386'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'wheezy' == type_client: # ogLive basado en Debian 7.3.
osdistrib='debian'
oscodename='wheezy'
osrelease='3.2.0-4-i386'
osarch='i386'
oshttp='http://ftp.es.debian.org/debian/'
elif 'quantal' == type_client: # ogLive 1.0.5-rc2 basado en Ubuntu 12.10 con Kernel descargado.
osdistrib='ubuntu'
oscodename='quantal'
osrelease='3.7.6-030706-generic'
osarch='i386'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'raring' == type_client: # ogLive 1.0.5-rc3 basado en Ubuntu 13.04.
osdistrib='ubuntu'
oscodename='raring'
osrelease='3.8.0-22-generic'
osarch='i386'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'trusty' == type_client: # ogLive 1.0.5-rc4 basado en Ubuntu 14.04.
osdistrib='ubuntu'
oscodename='trusty'
osrelease='3.13.0-24-generic'
osarch='i386'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'vivid' == type_client: # ogLive 1.1.0-rc2 basado en Ubuntu 15.04.
osdistrib='ubuntu'
oscodename='vivid'
osrelease='3.19.0-49-generic'
osarch='i386'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'wily' == type_client: # ogLive 1.1.0-rc1 basado en Ubuntu 15.10.
osdistrib='ubuntu'
oscodename='wily'
osrelease='4.2.0-35-generic'
osarch='i386'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'xenial' == type_client or 'xenial-4.4' == type_client: # ogLive 1.1.0-rc4 basado en Ubuntu 16.04 y Kernel 4.4.
osdistrib='ubuntu'
oscodename='xenial'
osrelease='4.4.0-34-generic'
osarch='i386'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'xenial-4.8' == type_client: # ogLive 1.1.0-rc5 basado en Ubuntu 16.04 y Kernel 4.8.
osdistrib='ubuntu'
oscodename='xenial'
osrelease='4.8.0-39-generic'
osarch='amd64'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'xenial-4.13' == type_client: # ogLive 1.1.0-rc6 basado en Ubuntu 16.04 y Kernel 4.13.
osdistrib='ubuntu'
oscodename='xenial'
osrelease='4.13.0-17-generic'
osarch='amd64'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'bionic' == type_client or 'bionic-4.15' == type_client: # ogLive 1.1.1-rc1 basado en Ubuntu 18.04 y Kernel 4.15.
osdistrib='ubuntu'
oscodename='bionic'
osrelease='4.15.0-32-generic'
osarch='amd64'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'bionic-4.18' == type_client: # ogLive 1.1.1-rc3 basado en Ubuntu 18.04 y Kernel 4.18.
osdistrib='ubuntu'
oscodename='bionic'
osrelease='4.18.0-20-generic'
osarch='amd64'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'bionic-5.0' == type_client: # ogLive 1.1.1-rc5 basado en Ubuntu 18.04 y Kernel 5.0.
osdistrib='ubuntu'
oscodename='bionic'
osrelease='5.0.0-27-generic'
osarch='amd64'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'focal' == type_client: # ogLive 1.2.0-rc1 basado en Ubuntu 20.04 y Kernel 5.4.
osdistrib='ubuntu'
oscodename='focal'
osrelease='5.4.0-42-generic'
osarch='amd64'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'noble' == type_client: # ogLive 1.2.0-rc1 basado en Ubuntu 24.04 y Kernel 6.8.
osdistrib='ubuntu'
oscodename='noble'
osrelease='6.8.0-31-generic'
osarch='amd64'
oshttp='http://es.archive.ubuntu.com/ubuntu/'
elif 'host' == type_client: # ogLive basado en la distribución del servidor.
osdistrib=platform.freedesktop_os_release()['NAME']
oscodename=platform.freedesktop_os_release()['VERSION_CODENAME']
osrelease=platform.uname()[2]
osarch, _=_run (['dpkg', '--print-architecture'])
oshttp='http://es.archive.ubuntu.com/ubuntu/'
else: # Parámetro desconocido
print ('Parámetro no válido.')
os.exit (1)
return ogclientcfg, osdistrib, oscodename, osrelease, osarch, oshttp
def btogGetOsInfo2 (type_client, versionboottools, ogclientcfg, osdistrib, oscodename, osrelease, osarch, oshttp):
branch = 'master'
giturl = 'https://api.github.com/repos/opengnsys/OpenGnsys/commits?sha={}&path=/client'.format (branch)
gitrelease = 'r20240808' ## TODO: are we going to keep the following? $(curl -s "$GITURL" | jq -r '"r" + (.[0].commit.committer.date | split("-") | join("")[:8]) + "." + (.[0].sha[:7])')
nameisoclient ='-'.join ([versionboottools, oscodename, osrelease, osarch, gitrelease])
namehostclient = '-'.join ([versionboottools, oscodename, gitrelease])
### El fichero de configuración debe sustituir a estos 3 ficheros (borrar las 3 líneas siguientes).
#echo "$NAMEISOCLIENT" > /tmp/opengnsys_info_rootfs
#echo "$NAMEHOSTCLIENT" > /tmp/opengnsys_chroot
# Generar fichero de configuración.
with open (ogclientcfg, 'w') as f:
print ('TYPECLIENT="{}"'.format (type_client), file=f)
print ('OSDISTRIB="{}"'.format (osdistrib), file=f)
print ('OSCODENAME="{}"'.format (oscodename), file=f)
print ('OSRELEASE="{}"'.format (osrelease), file=f)
print ('OSARCH="{}"'.format (osarch), file=f)
print ('OSHTTP="{}"'.format (oshttp), file=f)
print ('GITRELEASE="{}"'.format (gitrelease), file=f)
print ('NAMEISOCLIENT="{}"'.format (nameisoclient), file=f)
print ('NAMEHOSTCLIENT="{}"'.format (namehostclient), file=f)
return gitrelease, nameisoclient, namehostclient
def btogSetFsVirtual (btrootfsimg, btrootfsimglabel, btrootfsmnt, btvirtualdisksize, bttargetdir, osarch):
#if not btrootfsimg: btogGetVar()
logger.info ('Creación y formateo del disco virtual "{}" "{}" MB'.format (btrootfsimg, btvirtualdisksize))
try: _umount (btrootfsmnt)
except: pass
if (_is_mounted (btrootfsmnt)):
raise Exception ('failed to umount "{}"'.format (btrootfsmnt))
try: os.makedirs (btrootfsmnt, exist_ok=True)
except:
raise Exception ('Creando directorio "{}" : ERROR'.format (btrootfsmnt))
try: _run (['chown', '-R', 'root:opengnsys', bttargetdir])
except:
raise Exception ('Failed to chown root:opengnsys "{}"'.format (btrootfsmnt))
logger.info ('Creating disk image "{}"'.format (btrootfsimg))
if 'i386' == osarch:
try: _run (['dd', 'if=/dev/zero', 'of={}'.format (btrootfsimg), 'bs=1048576', 'count={}'.format (btvirtualdisksize)])
except:
raise Exception ('Creando el disco virtual "{}" con tamaño maxima "{}" MB : ERROR'.format (btrootfsimg, btvirtualdisksize))
else:
try: _run (['qemu-img', 'create', btrootfsimg, btvirtualdisksize])
except:
raise Exception ('Creando el disco virtual "{}" con tamaño maxima "{}" MB : ERROR'.format (btrootfsimg, btvirtualdisksize))
logger.debug ('losetup --find')
diskloop, _ = _run (['losetup', '--find'])
if not diskloop:
raise Exception ('no diskloop')
logger.debug ('losetup attach')
try: _run (['losetup', '--partscan', diskloop, btrootfsimg])
except: raise Exception ('losetup failed')
logger.info ('Partitioning disk image')
stdout, _ = _run (['bash', '-c', "echo $'n\np\n1\n\n\nt\n83\nw' |fdisk {}".format (diskloop)])
logger.debug ('fdisk output follows: {}'.format (stdout))
time.sleep (3)
logger.debug ('losetup --detach')
try: _run (['losetup', '--detach', diskloop])
except:
raise Exception ('Liberando disco virtual despues del particionado: ERROR')
logger.debug ('losetup --find')
partloop, _ = _run (['losetup', '--find'])
if not partloop:
raise Exception ('no partloop')
logger.debug ('losetup --offset attach')
_run (['losetup', '--offset', '32256', partloop, btrootfsimg])
logger.info ('Creating ext4 filesystem')
try: _run (['mkfs.ext4', '-b', '4096', '-L', btrootfsimglabel, partloop])
except:
raise Exception ('Formateando la particion principal del disco virtual: ERROR')
time.sleep (3)
logger.debug ('losetup --detach')
try: _run (['losetup', '--detach', partloop])
except:
raise Exception ('Liberando la particion virtual despues del formateo: ERROR')
logger.info ('"{}" "{}" MB : OK'.format (btrootfsimg, btvirtualdisksize))
#btogSetFsAcces: habilita el acceso al sistema root del cliente con schroot
def btogSetFsAccess (btrootfsimg):
if (_grep (btrootfsimg, '/etc/schroot/schroot.conf')):
return
logger.info ('Iniciando la configuración del schroot')
#cp /etc/schroot/schroot.conf /etc/schroot/schroot.conf.`getDateTime`
if (os.path.exists ('/etc/schroot/schroot.conf')):
shutil.copy ('/etc/schroot/schroot.conf', '/etc/schroot/schroot.conf.bak')
with open ('/etc/schroot/schroot.conf', 'w') as f:
print ('[IMGogclient]', file=f)
print ('type=loopback', file=f)
print ('file=/var/lib/tftpboot/ogclient/ogclient.img', file=f)
print ('description=ogclient Ubuntu image', file=f)
print ('#priority=1', file=f)
print ('users=root', file=f)
print ('groups=root', file=f)
print ('root-groups=root', file=f)
print ('mount-options=-o offset=32256', file=f)
print ('root-users=root', file=f)
#cp /etc/schroot/mount-defaults /etc/schroot/mount-defaults.`getDateTime`
if (os.path.exists ('/etc/schroot/mount-defaults')):
shutil.copy ('/etc/schroot/mount-defaults', '/etc/schroot/mount-defaults.bak')
with open ('/etc/schroot/mount-defaults', 'w') as f:
print ('# mount.defaults: static file system information for chroots.', file=f)
print ('# Note that the mount point will be prefixed by the chroot path', file=f)
print ('# (CHROOT_PATH)', file=f)
print ('#', file=f)
print ('# <file system> <mount point> <type> <options> <dump> <pass>', file=f)
print ('proc /proc proc defaults 0 0', file=f)
print ('#procbususb /proc/bus/usb usbfs defaults 0 0', file=f)
print ('#/dev /dev none rw,bind 0 0', file=f)
print ('/dev/pts /dev/pts none rw,bind 0 0', file=f)
print ('/dev/shm /dev/shm none rw,bind 0 0', file=f)
print ('#/home /home none rw,bind 0 0', file=f)
print ('/tmp /tmp none rw,bind 0 0', file=f)
map (os.unlink, glob.glob('/etc/schroot/setup.d/*chrootname'))
#for i in glob.glob ('/etc/schroot/setup.d/*chrootname'):
# os.unlink (i)
logger.info ('Finalizado: OK')
return 0
# btogSetfsBase: Genera el sistema root base con debootstrap
# trabaja sobre un rootfs ya montado
def btogSetFsBase (btrootfsimg, btrootfsmnt, osarch, oscodename, oshttp):
logger.info ('Iniciando la generación del sistema de archivos')
#mount | grep $BTROOTFSMNT || mount $BTROOTFSIMG $BTROOTFSMNT -o loop,offset=32256
if (not _is_mounted (btrootfsmnt)):
raise Exception ('rootfs should be mounted')
logger.info ('debootstrapping system')
logger.debug ('debootstrap --arch="{}" --components=main,universe "{}" "{}" "{}"'.format (osarch, oscodename, btrootfsmnt, oshttp))
try: _run (['debootstrap', '--arch={}'.format(osarch), '--components=main,universe', oscodename, btrootfsmnt, oshttp])
except:
if (_is_mounted (btrootfsmnt)):
_run (['umount', btrootfsmnt])
raise Exception ('debootstrap --arch="{}" --components=main,universe "{}" "{}" "{}" : ha fallado!'.format (osarch, oscodename, btrootfsmnt, oshttp))
logger.info ('debootstrap --arch="{}" --components=main,universe "{}" "{}" "{}" : ok'.format (osarch, oscodename, btrootfsmnt, oshttp))
return 0
def boottoolsSshServer (btrootfsmnt):
if not os.path.exists ('/root/.ssh/id_rsa'): ## crea un par de claves en la VM, no en el chroot
_run (['ssh-keygen', '-q', '-f', '/root/.ssh/id_rsa', '-N', ''])
#shutil.copy ('/root/.ssh/id_rsa.pub', '/tmp/')
logger.debug ('comprobando directorio .ssh del root')
if not os.path.exists ('{}/root/.ssh'.format (btrootfsmnt)): ## crea directorio dentro del chroot
logger.debug ('creando directorio .ssh 600')
os.mkdir ('{}/root/.ssh'.format (btrootfsmnt))
os.chmod ('{}/root/.ssh'.format (btrootfsmnt), 0o700)
logger.debug ('creando el fichero authorized_keys') ## crea archivo en el chroot
if not os.path.exists ('{}/root/.ssh/authorized_keys'.format (btrootfsmnt)):
open ('{}/root/.ssh/authorized_keys'.format (btrootfsmnt), 'w').close()
os.chmod ('{}/root/.ssh/authorized_keys'.format (btrootfsmnt), 0o600)
logger.debug ('importando la clave publica del servidor OG')
#cat /tmp/id_rsa.pub
if os.path.exists ('/root/.ssh/id_rsa.pub'): ## coge la publica de la VM y la pone en el authorized_keys del chroot
#cat /tmp/id_rsa.pub >> /root/.ssh/authorized_keys
fdin = open ('/root/.ssh/id_rsa.pub', 'r')
fdout = open ('{}/root/.ssh/authorized_keys'.format (btrootfsmnt), 'a')
while True:
l = fdin.readline()
if not l: break
fdout.write (l)
fdin.close()
fdout.close()
else:
logger.error ('no key publica og')
def boottoolsSshClient (btrootfsmnt):
if not os.path.exists ('{}/root/.ssh/id_rsa'.format (btrootfsmnt)):
_run (['ssh-keygen', '-q', '-f', '{}/root/.ssh/id_rsa'.format (btrootfsmnt), '-N', '']) ## crea un par de claves en el chroot
#cat /root/.ssh/id_rsa.pub >> /root/.ssh/authorized_keys ## coge la publica y se la autoriza a sí mismo
fdin = open ('{}//root/.ssh/id_rsa.pub'.format (btrootfsmnt), 'r')
fdout = open ('{}/root/.ssh/authorized_keys'.format (btrootfsmnt), 'a')
while True:
l = fdin.readline()
if not l: break
fdout.write (l)
fdin.close()
fdout.close()
## TODO: exportamos la publica a los repos
#cp /root/.ssh/id_rsa.pub /tmp/rsa.ogclient.pub
#btogFsInitrd genera un initrd.
def btogFsInitrd (bttargetdir, osrelease):
#echo "cp /tmp/*-${OSRELEASE} ${BTTARGETDIR}"
#cp /tmp/*-${OSRELEASE} ${BTTARGETDIR} ## esto copia algo??
## backup de oginitrd.img, oginitrd.img.sum, ogvmlinuz y ogvmlinuz.sum
now = datetime.datetime.now(datetime.timezone.utc).strftime ('%Y%m%d-%H%M%S%z')
if os.path.exists ('{}/oginitrd.img'.format (bttargetdir)):
os.rename ('{}/oginitrd.img' .format (bttargetdir), '{}/oginitrd.img.{}' .format (bttargetdir, now))
os.rename ('{}/oginitrd.img.sum'.format (bttargetdir), '{}/oginitrd.img.sum.{}'.format (bttargetdir, now))
if os.path.exists ('{}/ogvmlinuz'.format (bttargetdir)):
os.rename ('{}/ogvmlinuz' .format (bttargetdir), '{}/ogvmlinuz.{}' .format (bttargetdir, now))
os.rename ('{}/ogvmlinuz.sum'.format (bttargetdir), '{}/ogvmlinuz.sum.{}'.format (bttargetdir, now))
shutil.copy ('/tmp/initrd.img-{}'.format (osrelease), '{}/oginitrd.img'.format (bttargetdir))
shutil.copy ('/tmp/vmlinuz-{}' .format (osrelease), '{}/ogvmlinuz' .format (bttargetdir))
#DATASUM=`md5sum "${BTTARGETDIR}/oginitrd.img" | cut -f1 -d" "`
md5, _ = _run (['md5sum', '{}/oginitrd.img'.format (bttargetdir)])
md5, rest = md5.split (' ', 1)
#echo $DATASUM > ${BTTARGETDIR}/oginitrd.img.sum
with open ('{}/oginitrd.img.sum'.format (bttargetdir), 'w') as fd:
fd.write (md5)
#DATASUM=`md5sum "${BTTARGETDIR}/ogvmlinuz" | cut -f1 -d" "`
md5, _ = _run (['md5sum', '{}/ogvmlinuz'.format (bttargetdir)])
md5, rest = md5.split (' ', 1)
#echo $DATASUM > ${BTTARGETDIR}/ogvmlinuz.sum
with open ('{}/ogvmlinuz.sum'.format (bttargetdir), 'w') as fd:
fd.write (md5)
#cd -
#chmod -R 755 $BTTARGETDIR
for f in glob.glob ('{}/oginitrd*'.format (bttargetdir)) + glob.glob ('{}/vmlinuz*'.format (bttargetdir)):
os.chmod (f, 0o755)
#btogFsSqfs convierte el sistema root en sqfs
def btogFsSqfs (bttargetdir, btrootfsmnt):
logger.info ('Iniciando la creación del sistema de archivos en sqfs')
# si ya existe un sqfs lo renombramos
if os.path.exists ('{}/ogclient.sqfs'.format (bttargetdir)):
now = datetime.datetime.now(datetime.timezone.utc).strftime ('%Y%m%d-%H%M%S%z')
os.rename ('{}/ogclient.sqfs'.format (bttargetdir), '{}/ogclient.sqfs.{}'.format (bttargetdir, now))
_run (['mksquashfs', btrootfsmnt, '{}/ogclient.sqfs'.format (bttargetdir)])
os.chmod ('{}/ogclient.sqfs'.format (bttargetdir), 0o744)
#DATASUM=`md5sum "${BTTARGETDIR}/ogclient.sqfs" | cut -f1 -d" "`
md5, _ = _run (['md5sum', '{}/ogclient.sqfs'.format (bttargetdir)])
md5, rest = md5.split (' ', 1)
#echo $DATASUM > ${BTTARGETDIR}/ogclient.sqfs.sum
with open ('{}/ogclient.sqfs.sum'.format (bttargetdir), 'w') as fd:
fd.write (md5)
# btogIsoGenerator genera la iso del cliente
def btogIsoGenerator (pxepkg, bttargetdir, nameisoclient):
#Preparamos los gestores de arranque
try: os.makedirs ('/tmp/iso/isolinux', exist_ok=True)
except: raise
subprocess.run (['cp -a /usr/lib/syslinux/* /tmp/iso/isolinux/'], shell=True)
if 'gpxe' == pxepkg:
subprocess.run (['cp -a /usr/share/gpxe/* /tmp/iso/isolinux'], shell=True)
elif 'ipxe' == pxepkg:
subprocess.run (['cp -a /usr/lib/ipxe/* /tmp/iso/isolinux'], shell=True)
else:
raise Exception ('unknown pxepkg value "{}"'.format (pxepkg))
# Si existe el fichero ISO, montarlo para extraer isolinux.bin.
if os.path.exists ('/tmp/iso/isolinux/{}.iso'.format (pxepkg)):
os.mkdir ('/tmp/iso/isolinux/mount')
_run (['mount', '-o', 'loop', '/tmp/iso/isolinux/{}.iso'.format (pxepkg), '/tmp/iso/isolinux/mount'])
subprocess.run (['cp -a /tmp/iso/isolinux/mount/* /tmp/iso/isolinux'], shell=True)
_run (['umount', '/tmp/iso/isolinux/mount'])
os.rmdir ('/tmp/iso/isolinux/mount')
os.unlink ('/tmp/iso/isolinux/{}.iso'.format (pxepkg))
## ojo que aquí hay que interpolar $NAMEISOCLIENT y $PXEPKG
with open ('/tmp/iso/isolinux/isolinux.cfg', 'w') as fd:
fd.write (isolinux_tpl.strip().replace('__NAMEISOCLIENT__', nameisoclient).replace('__PXEPKG__', pxepkg))
# preparamos el directorio boot-tools.
if not os.path.exists ('/tmp/iso/ogclient'):
os.mkdir ('/tmp/iso/ogclient')
shutil.copy ('{}/ogclient.sqfs' .format (bttargetdir), '/tmp/iso/ogclient/')
shutil.copy ('{}/ogclient.sqfs.sum'.format (bttargetdir), '/tmp/iso/ogclient/')
shutil.copy ('{}/ogvmlinuz' .format (bttargetdir), '/tmp/iso/ogclient/')
shutil.copy ('{}/ogvmlinuz.sum' .format (bttargetdir), '/tmp/iso/ogclient/')
shutil.copy ('{}/ogvmlinuz' .format (bttargetdir), '/tmp/iso/ogclient/linuxISO')
shutil.copy ('{}/ogvmlinuz.sum' .format (bttargetdir), '/tmp/iso/ogclient/linuxISO.sum')
shutil.copy ('{}/oginitrd.img' .format (bttargetdir), '/tmp/iso/ogclient/')
shutil.copy ('{}/oginitrd.img.sum' .format (bttargetdir), '/tmp/iso/ogclient/')
#el ogclienteToISO debe tener una copia del ogvmlinuz como linuxISO
#cp -prv /var/lib/tftpboot/ogclientToIso/* /tmp/iso/ogclient
oldpwd = os.getcwd()
os.chdir ('/tmp')
logger.debug ('mkisofs -V ogClient -o {}.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -J -no-emul-boot -boot-load-size 4 -boot-info-table /tmp/iso'.format (nameisoclient))
_run (['mkisofs', '-V', 'ogClient', '-o', '{}.iso'.format (nameisoclient), '-b', 'isolinux/isolinux.bin', '-c', 'isolinux/boot.cat', '-J', '-no-emul-boot', '-boot-load-size', '4', '-boot-info-table', '/tmp/iso'])
##Generamos el md5
#DATASUM=`md5sum ${NAMEISOCLIENT}.iso | cut -f1 -d" "`
md5, _ = _run (['md5sum', '{}.iso'.format (nameisoclient)])
md5, rest = md5.split (' ', 1)
#echo $DATASUM > ${NAMEISOCLIENT}.iso.sum
with open ('{}.iso.sum'.format (nameisoclient), 'w') as fd:
fd.write (md5)
os.chdir (oldpwd)
os.rename ('/tmp/{}.iso' .format (nameisoclient), '/var/lib/tftpboot/ogclient/{}.iso' .format (nameisoclient))
os.rename ('/tmp/{}.iso.sum'.format (nameisoclient), '/var/lib/tftpboot/ogclient/{}.iso.sum'.format (nameisoclient))
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