mirror of https://github.com/tLDP/LDP
LVM changes.
This commit is contained in:
ccurley
parent
a64914cbff
commit
dc6473cc19
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@ -5,7 +5,7 @@
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# only option is -c, which forces bad block checking during formatting
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# of the partitions.
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# Time-stamp: <2005-09-01 07:35:16 root first.stage>
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# Time-stamp: <2006-04-05 20:35:39 ccurley first.stage>
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# Copyright 2002 through the last date of modification Charles Curley.
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@ -42,22 +42,39 @@ then
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fi
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for drive in $( ls make.dev.* ); do
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echo $drive$'\a'
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sleep 2
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./$drive $blockcheck;
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done
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# If there are any LVM volumes, now is the time to restore them.
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if [ -e LVM.backs ] && [ -e make.lvs ] && [ -e mount.lvs ]
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then
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echo make.lvs$'\a'
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sleep 2
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./make.lvs
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echo mount.lvs$'\a'
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./mount.lvs
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fi
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# WARNING: If your Linux system mount partitions across hard drive
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# boundaries, you will have multiple "mount.dev.* scripts. You must
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# ensure that they run in the proper order, which the loop below may
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# not do. The root partition should be mounted first, then the rest in
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# the order they cascade. If they cross mount, you'll have to handle
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# that manually.
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# that manually. If you have LVMs to deal with, that's a whole 'nother
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# kettle of fish.
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# The "ls -tr" will list the scripts in the order they are created, so
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# it might be a good idea to create them (in the script save.metadata)
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# in the order in which you should run them.
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for drive in $( ls -tr mount.dev.* ); do
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echo $drive$'\a'
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sleep 2
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./$drive;
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done
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@ -9,7 +9,7 @@
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# run at restore time to rebuild hard drive x, prior to running
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# restore.metadata. dev.x is the input file for fdisk.
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# Time-stamp: <2005-10-29 10:03:39 ccurley make.fdisk>
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# Time-stamp: <2006-04-05 20:36:21 ccurley make.fdisk>
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# Copyright 2001 through the last date of modification Charles Curley
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# except for the subroutine cut2fmt.
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@ -51,6 +51,13 @@
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# Changes:
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# 2006-03-28: We have a problem if swap partitions have
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# labels. There's no way to retrieve the label from a swap
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# partition. If we have one & only one swap partition, then we can
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# pull it out of /etc/fstab. Otherwise the user is on her own. We scan
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# fstab for swap mount points that have labels for their devices. If
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# there is one and only one, we assume that's it, otherwise pass.
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# 2005-10-29: We now provide the geometry as an argument to fdisk
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# (which does not work on tomsrtbt). We also save data for sfdisk, and
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# write out make.dev.xxx so that it will use sfdisk if it finds it.
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@ -175,6 +182,7 @@
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# For more information contact the author, Charles Curley, at
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# http://www.charlescurley.com/.
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use File::Copy;
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# cut2fmt figures out the format string for the unpack function we use
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# to slice and dice the output from fdisk. From Christiansen and
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@ -199,10 +207,12 @@ sub cut2fmt {
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# to the current output file.
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sub gpl {
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my $FILE = shift;
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my $year = shift;
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print OUTPUT <<FINIS;
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print $FILE <<FINIS;
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# Copyright 2001 through the last date of modification Charles Curley.
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# Copyright $year through the last date of modification Charles Curley.
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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@ -235,8 +245,162 @@ sub getBootSector {
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system ($systemcmd);
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}
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# Begin main line code.
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# If we have one & only one swap partition, then this must be
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# it. Otherwise the user is on her own. We scan fstab for swap mount
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# points that have labels for their devices. If there is one and only
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# one, we assume that's it, otherwise pass.
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sub getswaplabel {
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my $dev = $_[0];
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$fstabpid = open (FSTAB, "< /etc/fstab")
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or die "Couldn't fork: $!\n";
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while (defined (my $line = <FSTAB>)) {
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chop ($line);
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@fstabs = split (" ", $line);
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if (@fstabs[1] eq "swap") {
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$swaplabel = @fstabs[0];
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if ($swaplabel =~ /LABEL/) {
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$swaps++;
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$sl = substr ($swaplabel, 6);
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}
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# print ("\"@fstabs[0]\", \"@fstabs[1]\", \"$sl\", $swaps.\n");
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break;
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}
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}
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close (FSTAB);
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# print "label is $sl.\n";
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if ($swaps == 1) {
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$ret = "mkswap \$blockcheck -L $sl";
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$ret .= " $dev\n\n";
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} else {
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$ret = "mkswap \$blockcheck $dev\n\n";
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}
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# print ("Returning :$ret\n");
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return $ret;
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}
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# dolvm is a subroutine to handle LVM partitions. This is
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# experimental....
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sub dolvm {
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my $dev = $_[0];
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print ("In dolvm ()...\n");
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# back up the LVM's lvm details. Get the config files.
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system ("vgcfgbackup -f LVM.backs");
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# Scan /etc/fstab for the logical volumes and write a script to
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# make file systems on them and another to mount 'em later on.
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$mklvs = open (MKLVS, "> make.lvs")
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or die "Couldn't fork: $!\n";
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print MKLVS <<FINIS;
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#! /bin/sh
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# A script to create file systems on logical volumes. Created at bare
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# metal backup time by the Perl script make.fdisk.
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FINIS
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&gpl (*MKLVS, "2006");
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print MKLVS <<FINIS;
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export blockcheck=\$1;
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if [ "\$blockcheck" != "-c" ] && [ -n "\$blockcheck" ]
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then
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echo "\${0}: Build file systems on logical volumes."
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echo "\${0}: -c: block check during file system making."
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exit 1;
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fi
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export LVM_SYSTEM_DIR=\$(pwd)/lvm.cfg
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FINIS
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$mtlvs = open (MTLVS, "> mount.lvs")
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or die "Couldn't fork: $!\n";
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print MTLVS <<FINIS;
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#! /bin/sh
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# A script to mount file systems on logical volumes. Created at bare
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# metal backup time by the Perl script make.fdisk.
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FINIS
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&gpl (*MTLVS, "2006");
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# Now cycle through all the known logical volumes & set them
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# up. N.B.: This has been tested on a machine with only one
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# LV. But it *should* work.
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$pvdisp = open (PVDISP, "pvdisplay -c |")
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or die ("Can't open LVM display.\n");
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while (defined (my $pv = <PVDISP>)) {
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chop ($pv);
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print ("$pv\n");
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@pv = split (":", $pv);
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$uid = @pv[11];
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$pvname = @pv[1];
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$phv = @pv[0];
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print ("pv $pvname has uid $uid.\n");
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print (MKLVS "echo \"y\\n\" | pvcreate -ff --uuid \"$uid\" --restorefile lvm.cfg/archive/${pvname}_*.vg $phv\n");
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print (MKLVS "vgcfgrestore --file LVM.backs $pvname\n\n");
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}
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print (MKLVS "# Hideously disty dependent!\nif [ -e /etc/init.d/lvm ] ; then\n /etc/init.d/lvm start\nfi\n\n");
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$fstabpid = open (FSTAB, "< /etc/fstab")
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or die "Couldn't fork: $!\n";
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while (defined (my $line = <FSTAB>)) {
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chop ($line);
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@fstabs = split (" ", $line);
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if (@fstabs[0] =~ /VolGroup/ ) {
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# print ("$line\n");
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if (@fstabs[2] eq "swap") {
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print (MKLVS "echo\necho making LV @fstabs[0] a swap partition.\n");
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print (MKLVS "mkswap \$blockcheck @fstabs[0]\n\n");
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} elsif (@fstabs[2] == "ext3") {
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print (MKLVS "echo\necho making LV @fstabs[0] an ext3 partition.\n");
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print (MKLVS "mke2fs -j \$blockcheck @fstabs[0]\n\n");
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print (MTLVS "mkdir -p /target$fstabs[1]\n");
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print (MTLVS "mount @fstabs[0] /target$fstabs[1]\n\n");
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} elsif (@fstabs[2] == "ext2") {
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print (MKLVS "echo\necho making LV @fstabs[0] an ext2 partition.\n");
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print (MKLVS "mke2fs \$blockcheck @fstabs[0]\n\n");
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print (MTLVS "mkdir -p /target$fstabs[1]\n");
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print (MTLVS "mount @fstabs[0] /target$fstabs[1]\n\n");
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} else {
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print ("Opps, unknown type of logical volume, @fstabs[0]\n");
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}
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}
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}
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print (MTLVS "\nmount | grep -i \"/target\"\n");
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close (FSTAB);
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close (MKLVS);
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close (MTLVS);
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print ("Leaving dolvm ()...\n");
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return ($ret);
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}
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# Begin main line code.
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# Provide a default device.
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@ -444,16 +608,17 @@ while (<FDISK>) {
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print OUTPUT "@_[$lastcyl]\n";
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}
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$typechanges .= "t\n$partnumber\n82\n";
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$format .= "echo Making @_[$dev] a swap partition.\n";
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$format .= "echo\necho Making @_[$dev] a swap partition.\n";
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if ($labels{@_[$dev]}) { # do we have a label?
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$format .= "mkswap \$blockcheck -L $labels{@_[$dev]}";
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$format .= " @_[$dev]\n\n";
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} else {
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$format .= "mkswap \$blockcheck @_[$dev]\n\n";
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$format .= getswaplabel (@_[$dev]);
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}
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# Primary mess-dos partition. We don't handle hidden
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# partitions.
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} elsif ( @_[$parttype] == 1 || @_[$parttype] == 4 || @_[$parttype] == 6
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|| @_[$parttype] eq "b" || @_[$parttype] eq "c"
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|| @_[$parttype] eq "e" ) {
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@ -479,6 +644,8 @@ while (<FDISK>) {
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$format .= "dd if=$outputfilename$partnumber";
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$format .= " of=@_[$dev] bs=512 count=1\n\n";
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} elsif ( @_[$parttype] == "8e") {
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$format .= dolvm ($_[$dev]);
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} else {
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# anything else partition
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print OUTPUT "p\n@_[$firstcyl]\n";
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@ -532,12 +699,12 @@ while (<FDISK>) {
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print OUTPUT "@_[$lastcyl]\n";
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}
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$typechanges .= "t\n$partnumber\n82\n";
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$format .= "echo Making @_[$dev] a swap partition.\n";
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$format .= "echo\necho Making @_[$dev] a swap partition.\n";
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if ($labels{@_[$dev]}) { # do we have a label?
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$format .= "mkswap \$blockcheck -L $labels{@_[$dev]}";
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$format .= " @_[$dev]\n\n";
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} else {
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$format .= "mkswap \$blockcheck @_[$dev]\n\n";
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$format .= getswaplabel (@_[$dev]);
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}
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# Logical mess-dos partition. We don't handle hidden
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@ -567,6 +734,8 @@ while (<FDISK>) {
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$format .= "dd if=$outputfilename$partnumber";
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$format .= " of=@_[$dev] bs=512 count=1\n\n";
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} elsif ( @_[$parttype] == "8e") {
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$format .= dolvm ($_[$dev]);
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} else {
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# anything else partition
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print OUTPUT "l\n@_[$firstcyl]\n";
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@ -575,7 +744,6 @@ while (<FDISK>) {
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}
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$typechanges .= "t\n$partnumber\n@_[$parttype]\n";
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}
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}
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# handle bootable partitions
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@ -593,7 +761,7 @@ while (<FDISK>) {
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# print $_; # again, for grins.
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chop;
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@geometry = split (/ /, $_);
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$geometry = " -H $geometry[0] -S $geometry[2] -C $geometry[4]";
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$geometry = "-H $geometry[0] -S $geometry[2] -C $geometry[4]";
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# print $geometry;
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}
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}
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@ -619,10 +787,16 @@ print OUTPUT <<FINIS;
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# make.fdisk.
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FINIS
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&gpl;
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&gpl (*OUTPUT, "2001");
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print OUTPUT <<FINIS;
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swapoff -a
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# Hideously disty dependent!
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if [ -e /etc/init.d/lvm ] ; then
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/etc/init.d/lvm stop
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fi
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export blockcheck=\$1;
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if [ "\$blockcheck" != "-c" ] && [ -n "\$blockcheck" ]
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@ -637,7 +811,7 @@ FINIS
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# Clean the old partition table out. Turn off swap in case we're using
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# it.
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print OUTPUT "dd if=/dev/zero of=$device bs=512 count=2\n\nswapoff -a\nsync\n\n";
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print OUTPUT "dd if=/dev/zero of=$device bs=512 count=2\n\nsync\n\n";
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# command for fdisk
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@ -673,7 +847,7 @@ print OUTPUT <<FINIS;
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# the Perl script make.fdisk.
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FINIS
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&gpl;
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&gpl (*OUTPUT, "2001");
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print OUTPUT <<FINIS;
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@ -700,16 +874,17 @@ FINIS
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foreach $point ( sort keys %mountpoints) {
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print OUTPUT "\n# $point is the mountpoint for";
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print OUTPUT " tomsrtbt device $mountpoints{$point}.\n";
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print OUTPUT "mkdir $target$point\n";
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print OUTPUT "mkdir -p $target$point\n";
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print OUTPUT "mount $mountpoints{$point} $target$point\n";
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}
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print OUTPUT "\nmount | grep -i \"$device\"\n";
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print OUTPUT "\nmount | grep -i \"/target\"\n";
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close (OUTPUT);
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# These scripts are dangerous & should only be visible to root.
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chmod 0700, "${outputfilepath}make.$outputfilename";
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chmod 0700, "${outputfilepath}make.lvs";
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chmod 0700, "${outputfilepath}mount.$outputfilename";
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chmod 0600, "${outputfilepath}${outputfilename}*";
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|
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@ -5,7 +5,7 @@
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# and mounted. It also assumes the ZIP disk has already been
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# mounted. Mounting the ZIP disk read only is probably a good idea.
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# Time-stamp: <2005-10-11 08:45:19 root restore.metadata>
|
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# Time-stamp: <2006-04-05 20:36:49 ccurley restore.metadata>
|
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# Copyright 2000 through the last date of modification Charles Curley.
|
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@ -45,11 +45,11 @@
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umask 0000
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cd .. # Assume we are in root.bin
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zip=$(pwd); # Where we mount the zip drive.
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target="/target"; # Where the hard drive to restore is mounted.
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cd .. # Assume we are in root.bin
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zip=$(pwd); # Where we mount the zip drive.
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target="/target"; # Where the hard drive to restore is mounted.
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ls -lt $zip/*.bz2 # Warm fuzzies for the user.
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ls -lt $zip/*.bz2 # Warm fuzzies for the user.
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cd $target
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@ -68,7 +68,7 @@ done
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# xfs font server.
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for dir in mnt/dosc mnt/zip mnt/imports mnt/nfs proc initrd tmp/.font-unix\
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var/empty/sshd var/log back selinux sys /var/cache/yum; do
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var/empty/sshd var/log back selinux sys /var/cache/yum /var/lock; do
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mkdir -p $target/$dir
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done
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@ -76,7 +76,38 @@ for dir in mnt usr usr/share $(ls -d var/*) selinux usr/lib var var/cache/yum; d
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chmod go-w $target/$dir
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done
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# chmod a-w $target/proc # Restore /proc's read-only permissions
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chown root:lock /var/lock
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chmod 775 /var/lock
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# [root@jhereg /]# ll -d mnt usr usr/share $(ls -d var/*) selinux usr/lib var var/cache/yum
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# drwxr-xr-x 4 root root 4096 Oct 10 08:55 mnt
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# drwxr-xr-x 2 root root 4096 Oct 10 08:41 selinux
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# drwxr-xr-x 14 root root 4096 Oct 10 08:46 usr
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# drwxr-xr-x 40 root root 12288 Oct 10 10:40 usr/lib
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# drwxr-xr-x 63 root root 4096 Oct 10 11:11 usr/share
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# drwxr-xr-x 20 root root 4096 Oct 10 08:52 var
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# drwxr-xr-x 2 root root 4096 Oct 10 08:51 var/account
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# drwxr-xr-x 4 root root 4096 Oct 10 08:53 var/cache
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# drwxr-xr-x 4 root root 4096 Oct 10 10:44 var/cache/yum
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# drwxr-xr-x 3 netdump netdump 4096 Aug 22 13:13 var/crash
|
||||
# drwxr-xr-x 3 root root 4096 Oct 10 08:51 var/db
|
||||
# drwxr-xr-x 3 root root 4096 Oct 10 08:52 var/empty
|
||||
# drwxr-xr-x 13 root root 4096 Oct 10 11:11 var/lib
|
||||
# drwxr-xr-x 2 root root 4096 May 22 22:28 var/local
|
||||
# drwxrwxr-x 4 root lock 4096 Sep 1 08:37 var/lock
|
||||
# drwxr-xr-x 7 root root 4096 Oct 10 11:14 var/log
|
||||
# lrwxrwxrwx 1 root root 10 Oct 10 08:42 var/mail -> spool/mail
|
||||
# drwxr-x--- 4 root named 4096 Aug 22 14:33 var/named
|
||||
# drwxr-xr-x 2 root root 4096 May 22 22:28 var/nis
|
||||
# drwxr-xr-x 2 root root 4096 May 22 22:28 var/opt
|
||||
# drwxr-xr-x 2 root root 4096 May 22 22:28 var/preserve
|
||||
# drwxr-xr-x 2 root root 4096 Mar 28 2005 var/racoon
|
||||
# drwxr-xr-x 13 root root 4096 Oct 10 11:14 var/run
|
||||
# drwxr-xr-x 13 root root 4096 Oct 10 08:53 var/spool
|
||||
# drwxrwxrwt 2 root root 4096 Oct 10 11:14 var/tmp
|
||||
# drwxr-xr-x 3 root root 4096 Oct 10 08:53 var/yp
|
||||
|
||||
# chmod a-w $target/proc # Restore /proc's read-only permissions
|
||||
|
||||
# Set modes
|
||||
chmod 0111 $target/var/empty/sshd
|
||||
|
|
|
|||
Loading…
Reference in New Issue