mirror of
https://github.com/kneutron/ansitest.git
synced 2025-01-16 04:42:55 +08:00
110 lines
3.7 KiB
Bash
110 lines
3.7 KiB
Bash
#!/bin/bash
|
|
|
|
# restore ext4 (or other) root filesystem from fsarchiver to XFS on the fly (usually into VM)
|
|
# To be run from systemrescuecd environment; NOTE restore disk MUST be partitioned 1st!
|
|
# REQUIRES 1 arg: filename of .fsa
|
|
# copy this script to /tmp and chmod +x, run from there
|
|
# NOTE ISO from mkrestoredvdiso should be mounted on 2nd dvd drive
|
|
# NOTE having a copy of supergrubdisc is handy if the VM fails to boot
|
|
# REF: https://distrowatch.com/table.php?distribution=supergrub
|
|
|
|
# TODO include /home and restore that? IF EXIST
|
|
|
|
# failexit.mrg
|
|
function failexit () {
|
|
echo '! Something failed! Code: '"$1 $2" # code # (and optional description)
|
|
exit $1
|
|
}
|
|
|
|
# xxx TODO editme; assumes swap is on sda1
|
|
rootdev=/dev/sda2
|
|
rdevonly=${rootdev%[[:digit:]]}
|
|
umount $rootdev # failsafe
|
|
|
|
cdr=/mnt/cdrom2
|
|
mkdir -pv $cdr
|
|
rootdir=/mnt/tmp2
|
|
umount $rootdir # failsafe
|
|
mkdir -pv $rootdir
|
|
|
|
myres=BOOJUM-RESTORE.sh # injection script
|
|
|
|
# NOTE sr0 is systemrescue
|
|
mount /dev/sr1 $cdr -oro
|
|
chkmount=$(df |grep -c $cdr)
|
|
[ $chkmount -gt 0 ] || failexit 99 "Failed to mount $cdr"; # failed to mount
|
|
chkmount=$(df |grep -c $rootdir)
|
|
[ $chkmount -eq 0 ] || failexit 98 "$rootdir is still mounted - cannot restore!"
|
|
|
|
cd $cdr || failexit 199 "Cannot CD to $cdr";
|
|
pwd
|
|
echo "$(date) - RESTORING root filesystem to $rootdev"
|
|
|
|
# PROBLEM with long filenames in UDF - gets cut off, use $1
|
|
#time fsarchiver restfs *.fsa id=0,dest=$rootdev
|
|
time fsarchiver restfs "$1" id=0,mkfs=xfs,dest=$rootdev || failexit 400 "Restore failed!";
|
|
|
|
date
|
|
|
|
# boojumtastic!
|
|
#tune2fs -m1 $rootdev
|
|
|
|
# TODO assuming a ~20GB root
|
|
mount $rootdev $rootdir -onoatime,rw && \
|
|
xfs_io -x -c "resblks 1024" $rootdir
|
|
|
|
# Comment out any existing swap partitions in restored fstab
|
|
# REF: https://unix.stackexchange.com/questions/295537/how-do-i-comment-lines-in-fstab-using-sed
|
|
#sed -e '/[/]/common s/^/#/' /etc/fstab
|
|
/bin/cp -v $rootdir/etc/fstab $rootdir/etc/fstab--bkp && \
|
|
sed -i '/swap/s/^/#/' $rootdir/etc/fstab; grep swap $rootdir/etc/fstab
|
|
|
|
# Detect swap partition(s) in restore environ - print /dev/sdXX w/o ":"
|
|
for p in `blkid |grep TYPE=\"swap\" |awk -F: '{ print $1 }'`; do
|
|
pmod=${p##*/} # strip off beginning /dev/, leave sdXX
|
|
swapuuid=$(ls -l /dev/disk/by-uuid |grep $pmod |awk '{ print $9 }')
|
|
|
|
# check have we already done this?
|
|
[ $(grep -c $swapuuid $rootdir/etc/fstab) -gt 0 ] || \
|
|
echo "UUID=$swapuuid swap swap defaults,pri=2 0 0" |tee -a $rootdir/etc/fstab
|
|
# echo "UUID=$swapuuid swap swap defaults,pri=2 0 0" >> $rootdir/etc/fstab
|
|
done
|
|
|
|
# /dev/sdb5
|
|
#ls -l /dev/disk/by-uuid |grep sdb5
|
|
# 1 2 3 4 5 6 7 8 9 10 11
|
|
#lrwxrwxrwx 1 root root 10 Aug 27 11:09 dfc46f8f-bcfa-4e73-b62f-b24dd0bf60cf -> ../../sdb5
|
|
|
|
# Make sure we can boot!
|
|
grub-install --root-directory=$rootdir $rdevonly
|
|
mount -o bind /dev $rootdir/dev; mount -o bind /proc $rootdir/proc; mount -o bind /sys $rootdir/sys
|
|
|
|
# FIXED
|
|
myres2=$rootdir/$myres
|
|
touch $myres2 || failexit 298 "Check if R/O filesystem?"
|
|
|
|
echo "#!/bin/bash" > $myres2 || failexit 299 "Cannot update $myres2 injection script - Check R/O filesystem?"
|
|
echo "update-grub" >> $myres2
|
|
echo "grub-install $rdevonly" >> $myres2 # from chroot
|
|
echo "exit;" >> $myres2
|
|
|
|
# inject script here!
|
|
chroot $rootdir /bin/bash /$myres
|
|
|
|
#umount -a $rootdir/*
|
|
umount -a $rootdir/{dev,proc,sys}
|
|
|
|
|
|
umount $rootdir/* 2>/dev/null
|
|
#umount $rootdir 2>/dev/null
|
|
|
|
df -hT
|
|
|
|
echo "DON'T FORGET TO COPY /home and adjust fstab for home / squid BEFORE booting new drive!"
|
|
echo "+ also adjust etc/network/interfaces , getdrives-byid , etc/rc.local , etc/hostname , etc/hosts ,"
|
|
echo "+ etc/init/tty11 port (home/cloudssh/.bash_login"
|
|
echo "DONT FORGET to edit fstab and change root ext4 to xfs"
|
|
|
|
exit;
|
|
|