mirror of
https://gitee.com/open-loongarch/buildroot.git
synced 2026-10-25 12:57:11 +08:00
257 lines
6.4 KiB
Bash
Executable File
257 lines
6.4 KiB
Bash
Executable File
echo " ";
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echo "*************************************************************************"
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echo "*********************************STARG 2*********************************"
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echo "*******************uzip system and setup it with fstab*******************"
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echo "*************************************************************************"
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echo " ";
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sleep 2;
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root_partition="/dev/sda1"
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data_partition="/dev/sda2"
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swap_partition="/dev/sda3"
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backup_partition="/dev/sda4"
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root_mount_point="/mnt/usb1"
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data_mount_point="/mnt/usb2"
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swap_mount_point="/mnt/usb3"
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backup_mount_point="/mnt/usb4"
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check_cmdline_ins_target()
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{
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install_target_type=0
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# install_target_type=$(cat /proc/cmdline | grep ins_target="scsi") #default is scsi
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install_target_type=$(cat /proc/cmdline | grep rec_target=mmc)
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if [ ! -z "$install_target_type" ]; then
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root_partition="/dev/mmcblk0p1"
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data_partition="/dev/mmcblk0p2"
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swap_partition="/dev/mmcblk0p3"
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backup_partition="/dev/mmcblk0p4"
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return 0
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fi
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root_partition="/dev/sda1"
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data_partition="/dev/sda2"
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swap_partition="/dev/sda3"
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backup_partition="/dev/sda4"
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}
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check_and_umount_for_safe()
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{
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for i in /mnt/usb*; do
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{
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if mountpoint -q $i; then
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sync;
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umount $i;
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fi
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}
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done
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}
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#错误信息输出到backup分区里的error.log
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#注意安装系统时backup分区不要存放error.log
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#否则会先改名error.log.bak,多次执行后，这样可能会造成数据丢失
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error_inf_write_backup()
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{
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if mountpoint -q $backup_mount_point; then
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echo $1 >> $backup_mount_point"/error.log";
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else
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mount $backup_partition $backup_mount_point;
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if mountpoint -q $backup_mount_point; then
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echo $1 >> $backup_mount_point"/error.log";
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sync;
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umount $backup_mount_point;
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else
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echo "-------------> log error: couldn't mount backup partition("$backup_partition") <-------------"
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fi
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fi
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}
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error_inf_print()
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{
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echo "";
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echo "*************************************************************************"
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echo "********************************Error Log********************************"
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echo "*************************************************************************"
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echo $1
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error_inf_write_backup $1
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check_and_umount_for_safe;
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echo "*************************************************************************"
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echo ""
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exit 1;
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}
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# sda1 / usb1
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# sda2 data usb2
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# sda3 swap usb3
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# sda4 backup usb4
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#uzip_rootfs 解压文件系统到根文件分区 必要
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#copy_uimage_to_boot 复制内核到/boot目录（没做boot分区）必要
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#copy_file_to_data 复制home opt var到data分区 不一定，根据fstab而定
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uzip_rootfs()
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{
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echo "-------------> stage2.1 uzip_rootfs <-------------";
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mount $root_partition $root_mount_point;
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sync;
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mount $backup_partition $backup_mount_point;
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sync;
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if [ -e "/dev/fb0" ]; then
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show_process_dev="/dev/tty0"
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else
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if [ -e "/dev/console" ]; then
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show_process_dev="/dev/console"
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else
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show_process_dev="/dev/tty0"
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fi
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fi
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echo "can observe process in screen"
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pv $backup_mount_point/rootfs.tar.gz 2>$show_process_dev | tar -xzf - -C $root_mount_point;
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if [ $? -ne 0 ]; then
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error_inf_print "Error! unzip rootfs.tar.gz failed!"
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fi
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check_and_umount_for_safe;
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return 0;
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}
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copy_uimage_to_boot()
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{
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echo "-------------> stage2.2 copy_uimage_to_boot <-------------";
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mount $root_partition $root_mount_point;
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sync;
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mount $backup_partition $backup_mount_point;
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sync;
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mkdir -p $root_mount_point/boot/
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cp -a $backup_mount_point/uImage $root_mount_point/boot/;
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if [ $? -ne 0 ]; then
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error_inf_print "Error! copy uImage to /boot/ failed!"
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fi
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check_and_umount_for_safe;
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return 0;
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}
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copy_fstab()
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{
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echo "-------------> stage2.3 copy fstab to /etc/fstab <-------------"
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sda1_partition_target=0
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sda2_partition_target=0
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sda3_partition_target=0
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sda4_partition_target=0
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if [ -e $root_partition ]; then
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sda1_partition_target=1;
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fi
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if [ -e $data_partition ]; then
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sda2_partition_target=1;
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fi
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if [ -e $swap_partition ]; then
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sda3_partition_target=1;
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fi
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if [ -e $backup_partition ]; then
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sda4_partition_target=1;
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fi
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mount $root_partition $root_mount_point;
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sync;
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mv $root_mount_point/etc/fstab $root_mount_point/etc/fstab_ori;
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cp "/home/fstab/"$sda4_partition_target$sda3_partition_target$sda2_partition_target$sda1_partition_target"part_fstab" $root_mount_point/etc/fstab;
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check_and_umount_for_safe;
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return 0;
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}
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#相关分区
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#data 分区
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#/ 分区
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#/分区里面的/home /opt /var复制到data分区，然后删除自身的/home /opt /var
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copy_file_to_data()
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{
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echo "-------------> stage2.4 update data partition <-------------";
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mount $root_partition $root_mount_point
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sync
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mount $data_partition $data_mount_point
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sync
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#必须重置dpkg的记录，否则就会提示什么包都装好了，但是程序提示找不到
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# if [ -d $2/var/lib/dpkg ]; then
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# {
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# echo "-------------> stage2.3 delete dpkg inf in data partition <-------------"
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# rm -r $2/var/lib/dpkg;
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# sync;
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# }
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# fi
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# echo "-------------> stage2.3 copy dpkg inf to data partition <-------------"
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# cp -a $4/var/lib/dpkg $2/var/lib
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# sync;
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# sleep 1;
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#先保留mysql的数据，然后删除var，复制var过来，然后再恢复mysql的数据
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if [ -d $data_mount_point/var ]; then
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if [ -d $data_mount_point/var/lib/mysql ]; then
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echo "-------------> stage2.3 backup mysql data to data partition <-------------";
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cp -a $data_mount_point/var/lib/mysql $data_mount_point/;
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sync;
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fi
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rm -r $data_mount_point/var
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fi
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cp -a $root_mount_point/var $data_mount_point/var
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if [ -d $data_mount_point/mysql ]; then
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rm -r $data_mount_point/var/lib/mysql 2>/dev/null
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cp -a $data_mount_point/mysql $data_mount_point/var/lib/mysql
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fi
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rm -r $root_mount_point/var;
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sync;
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rm -r $root_mount_point/home;
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sync;
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rm -r $root_mount_point/opt;
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sync;
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rm -r $root_mount_point/root;
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sync;
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mkdir -p $root_mount_point/var
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mkdir -p $root_mount_point/home
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mkdir -p $root_mount_point/opt
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mkdir -p $root_mount_point/root
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mkdir -p $root_mount_point/data
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check_and_umount_for_safe;
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}
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#相关分区
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#backup分区
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start_stage2()
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{
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check_cmdline_ins_target
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#执行三个阶段的操作
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uzip_rootfs;
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copy_uimage_to_boot;
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copy_fstab;
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if [ -e $data_partition ]; then
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copy_file_to_data;
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fi
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}
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###################start##########################
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###################start##########################
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###################start##########################
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#防止第一个阶段因未知原因而导致没有解除挂载
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check_and_umount_for_safe;
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start_stage2;
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check_and_umount_for_safe;
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echo "-------------> stage2 end <-------------"
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/home/recover_reboot.sh
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