#!/usr/bin/python3 #$Id: debclone,v 1.16 2025/06/07 11:43:55 daddio Exp $ # patched syslinux.cfg to use target boot partition ## Id: debclone,v 1.13 2025/06/01 11:53:30 Exp $ # fixed bug in -m ## id: debclone,v 1.11 2025/06/01 11:52:29 # include efivars,essential for some uefi bioses # # This script is free to copy and use. Absolutely no guarantees provided # or responsibility taken , G. Eckersley # It is a result of "handsoff" booting various pc's rather than any planned approach. # It gets hacked whenever a PC won't boot, and includes scraps of code from all over # the place. Happy to include your contribution if it helps dodge the rocks in the # booting sea. # default is to generate UEFI/Grub booting, the -m option generates mbr/syslinux boot partition. # Run without parameters to print help file # Run with "-d" options and understand what the shell commands do before # executing without the -d (dummy) option import sys sys.path.insert(0, "./") from gdb1 import * #from bandb_text import * lf=chr(0xa) sep=os.sep def pos(g,d): # if g.v: # print(pe_s(d,c=1)) if g.overwrite: pass e=d while (len(e)>0) and e[-1]==' ': e=e[:-1] if (e !='') and (e[0]!='#'): s='sudo '+d pd(s) os.system(s) else: pd('dummy run '+d) def spl(txt): return st_split(txt,lf) def xeclines(g,sp): tgt=g.dev lr=[] for line in sp: spl=st_split(line,'tgt') sjn=st_join(spl,g.dev) pos(g,sjn) ptit=""" echo partitioning $tgt #udevadm info -n $tgt -q property umount tgt* || true parted tgt --script mktable gpt parted tgt --script mkpart EFI fat16 1MiB 210MiB parted tgt --script set 1 msftdata on parted tgt --script mkpart LINUX ext4 210MiB 100% """ def dopart(g): if g.mbr: fl_writebya(g.tmpf,ftxt.encode('latin1')) s='cat '+g.tmpf+' | sudo fdisk '+g.dev pd(s) if g.overwrite: xeccmd(s) else: xeclines(g,spl(ptit)) dofmt(g) def dofmt(g): syl=[] a=syl.append a('mkfs.vfat -n EFI '+g.ptn(1)) a('mkfs.ext4 -F -L LINUX '+g.ptn(2)) xeclines(g,syl) def chkmount(g): if hasattr(g,'mounted'): return g.mounted=1 xeclines(g,['mount '+g.ptn(2)+' '+g.rootfs]) def chkumount(g): if hasattr(g,'mounted'): del(g.mounted) xeclines(g,['umount '+g.ptn(2)]) def dosync(g): syl=[] a=syl.append chkmount(g) # a('mount '+g.ptn(2)+' '+g.rootfs) a('rsync -avx --delete --specials --devices --exclude /home/taint/ --exclude /swapfile / '+g.rootfs) # pd(syl) # pd(g.v) xeclines(g,syl) def xc(g,line): xeclines(g,[line]) def syslinuxinst(g): s=xc(g,'mkdir '+g.tmpmnt) s=xc(g,'mount '+devil(g,1)+' '+g.tmpmnt) s=xeccmd('uname -a')[0][0] ls=st_split(s)[2] # pd(ls) fl=glob.glob('/boot/*'+ls) # pd(fl) for bf in fl: stem=chopr(bf,sep)[-1] # if stem[0:6] in ['vmlinu','initrd']: ## pd(stem) # xc(g,'cp -v /boot/'+stem+' '+g.tmpmnt) if stem[0:6] == 'vmlinu': xc(g,'cp -v /boot/'+stem+' '+g.tmpmnt+'/vmlinuz') if stem[0:6] == 'initrd': xc(g,'cp -v /boot/'+stem+' '+g.tmpmnt+'/initrd.img') pd('writing '+g.tmpmnt+'/syslinux.cfg') sysld=g.tmpdir+'/syslinux.cfg' # fl_writebya(sysld,sysltxt.encode('latin1')) # xc(g,s) xl=[] a=xl.append a('') a('PROMPT 1') a('timeout 10') a('') a('DEFAULT linuxmb') a(' SAY Now booting a kernel from SYSLINUX...') a('') a('LABEL linux') a(' linux /vmlinuz') a(' initrd /initrd.img') a(' append root=/dev/ram0 rw') a('') a('label linuxmb') a(' linux /vmlinuz') a(' initrd /initrd.img') a(' append root=' +devil(g,2)+' ro') a('') a('') fl_write(sysld,xl) if g.overwrite: s='cp '+sysld+' '+g.tmpmnt+'/syslinux.cfg' xc(g,s) pd('hhhhhh',sysld,s) s='dd if=/usr/lib/SYSLINUX/mbr.bin of='+g.dev pd(s) xc(g,s) s=xc(g,'umount '+devil(g,1)+' ') s='syslinux '+devil(g,1) xc(g,s) def togrub(g): pd() syl=[] # root=g.dev+'2' a=syl.append a('mkdir '+g.rootfs) # a("mount "+g.dev+'2'+' '+g.rootfs) chkmount(g) a("mkdir "+g.rootfs+sep+'/boot/efi') a("mount "+devil(g,1)+' '+g.rootfs+sep+'boot/efi') a('mount --bind /dev '+g.rootfs+'/dev') a('mount -t devpts /dev/pts '+g.rootfs+'/dev/pts') a('mount -t proc proc '+g.rootfs+'/proc') a('mount -t sysfs sysfs '+g.rootfs+'/sys') a('mount -t tmpfs tmpfs '+g.rootfs+'/tmp') a('mount --bind /sys/firmware/efi/efivars '+g.rootfs+'/sys/firmware/efi/efivars' ) # without this latter line some bioses fail on some device partitions. xeclines(g,syl) def fromgrub(g): pd() syl=[] # root=g.dev+'2' a=syl.append a('umount '+g.rootfs+'/sys/firmware/efi/efivars ') a("umount "+g.rootfs+sep+'/dev/pts') a("umount "+g.rootfs+sep+'dev') a("umount "+g.rootfs+sep+'sys') a("umount "+g.rootfs+sep+'proc') a("umount "+g.rootfs+sep+'tmp') a("umount "+g.rootfs+sep+'boot/efi') a("umount "+g.rootfs) xeclines(g,syl) def dogrub(g): pd() syl=[] a=syl.append fn2=g.tmpdir+'/chrtdta' pd(fn2) fl_write(fn2,spl(chrtit)) a('chroot '+g.rootfs+' < '+fn2) xeclines(g,syl) def mkfstab(g): fstl=['# fstab generated by debclone ',''] a=fstl.append a('UUID='+g.bootuuid+' /boot/efi vfat umask=0077 0 1 ') a('UUID='+g.rootuuid+' / ext4 errors=remount-ro 0 1 ') a('#/swapfile none swap sw 0 0 ') a('#enable this once a swapfile has been built') return fstl def getuuids(g): res=xeccmd('sudo blkid |grep '+g.dev) for line in res[0]: if ":" in line: dev,s1=st_split(line,':')[:2] s2=st_split(s1,' UUID=')[-1] uuid=st_split(s2,' ')[0][1:-1] if dev[-1]=='1': g.bootuuid=uuid if dev[-1]=='2': g.rootuuid=uuid def doinstall(g): # install boot pd() syl=[] a=syl.append getuuids(g) # fst=mkfstab1(g) fst=mkfstab(g) fn=g.rootfs+sep+'/etc/fstab' fnl=g.tmpdir+'/fstab' # pd(fn,fnl) fl_write(fnl,fst) a('mv -vf '+fnl+' '+fn) xeclines(g,syl) dt=devtype(g.dev) pd(dt) if dt == devgpt: togrub(g) dogrub(g) fromgrub(g) elif dt ==devmbr: pd(g.dev) syslinuxinst(g) def mkbuild(g): dopart(g) dosync(g) doinstall(g) pd(g.dev) def mkdummy(g): pd(g.dev) class dvv(): def __init__(self,dv): self.dev=dv res=xeccmd('sudo ls '+dv) if 'cannot access' in res[1][0]: pd('device '+dv+' not found -exiting') sys.exit() pd(dv) t1='sd';t2='nvme';t3='mmcblk' if t1 in dv: self.dvtyp=t1 s=st_split(dv,t1)[1] return if t2 in dv: s=st_split(dv,t2)[1] self.dvtyp=t2 return if t3 in dv: s=st_split(dv,t3)[1] self.dvtyp=t3 # def ptn(ptno): def ptn(self,ptno): if self.dvtyp=='sd': return self.dev+str(ptno) elif self.dvtyp=='nvme': return self.dev+'p'+str(ptno) elif self.dvtyp=='mmcblk': return self.dev+'p'+str(ptno) def devil(g,nr): # device 0:n # dvl=[g.dev]+glob.glob(g.dev+'*') dvl=glob.glob(g.dev+'*') # pd(dvl) dvl.sort() # pd(dvl) # sys.exit() return dvl[nr] def main(p): pd(p) pd(p[0]) pl={} for itm in p[2]: pd(itm) pl[itm[0]] = itm[1] # pd(pl) if len(p[0])==0: # if no /dev param print help print(hlptxt) sys.exit() missing=needpkg(['sudo','gparted','util-linux','fdisk','gdisk','grub-common','grub2-common','python3','rsync','dosfstools','e2fsprogs']) if (len(missing)!=0): pd('missing packages ='+str(missing) ) sys.exit() # sys.exit() pr=p[0][0] g=dvv(pr) g.tmpdir=tempfile.mktemp()+'bandb' g.tmpdir='/tmp/data-for-debclone' g.tmpf=g.tmpdir+sep+'tempdata' xeccmd('mkdir '+g.tmpdir) g.rootfs=g.tmpdir+sep+'rootfs' xeccmd('mkdir -p '+g.rootfs) xeccmd('ln -sfvn '+g.tmpdir+' /tmp/files+root-file-system') g.tmpmnt=g.tmpdir+sep+'syslinux-data' ol=p[1] pd(ol) ol2='' for ff in ol: ol2=ol2+ff pd(ol2) g.overwrite=not (('d' in ol2) or ('n' in ol2)) g.mbr='m' in ol2 g.v='v' in ol2 pd(ol2,g.v) # sys.exit() g.dev=pr pd(pl,g.dev) # for i in range(3): # pd(devil(g,i)) # sys.exit() if 'op' in pl: ops=st_split(pl['op'],',') ctc=[] ctc.append(['partition','ptn',dopart]) ctc.append(['copy','sync',dosync]) ctc.append(['install',doinstall]) # ctc.append(['grub',dogrub]) ctc.append(['tog','togrub',togrub]) ctc.append(['fog','frog','fromgrub',fromgrub]) # ctc.append(['fstab',mkfstab1]) ctc.append(['build','clone',mkbuild]) # ctc.append(['dummy',mkdummy]) for dd in ops: # pd(dd) for cc in ctc: if dd in cc[:-1]: pd('--',dd,cc) cc[-1](g) pd('=================') # break # chkumount(g) if __name__ == '__main__': p=parsplit(sys.argv[1:]) main(p)