Add desktop example to README. Mention grub-install in summary.
This commit is contained in:
Bill Wilson
99
README.md
99
README.md
@@ -85,18 +85,27 @@ add them to the rpi-clone-setup script.
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$ sudo cp rpi-clone-setup /usr/local/sbin/sys-clone-setup
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```
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If your other OS is a SD card booted system, it will possibly work.
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If your other OS is a SD card booted system, it will possibly work because
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an initialize clone images a first /boot partition.
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However it currently does not work for emmc booted devices.
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rpi-clone does not directly support usage on a desktop OS.
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However, I do use it with my Debian desktop because my setup script
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handles my /etc/grub.d/ custom menus and fstab, and the script runs
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grub_install. rpi-clone does handle editing of
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PARTUUID values in /etc/fstab, but a customized setup script for
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a desktop might need to handle file system UUID values or device
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name editing in /etc/fstab and the bootloader config. If these possible
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issues are handled in a setup script, then rpi-clone should work fine
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creating clone backup disks for a desktop.
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rpi-clone does not directly support usage on a desktop OS because there
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are different possible bootloaders and while device names or PARTUUID
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are handled for /etc/fstab, UUID is not handled.
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However, it works for me and I use rpi-clone renamed as sys-clone on
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my Debian desktop because I use PARTUUID in my fstab and I use the grub
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bootloader (rpi-clone will run grub-install if it detects it installed
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and there is a /boot/grub directory). Using PARTUUID makes fstab
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editing simple because only a single number identifies the entire disk.
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I do have possible ambiguity in my grub menu setup because I only use
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device names in my menu entries while the fstab uses PARTUUID.
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But what actually happens is that with a root=/dev/sda2 in my grub menu
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default boot line, a USB disk will boot as sda if I have the disk plugged
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in when booting, which is what I want. Device names in fstab are a bad
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idea when doing this because the USB disk root partition could boot and then
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mount my internal drive partitions instead of the USB partitions. But
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I use PARTUUID so there will not be cross mounting. And I have a couple
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of extra grub menu entries with other root variations just in case.
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## Usage
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To get a usage screen showing available options,
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@@ -212,6 +221,8 @@ If it is not, then the clone will have to be to a two partition -f2
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clone or a clone to a manually partitioned destination. So, for a
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multi partition disk, select partition number and sizes with a eye
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towards how you will be cloning back to smaller disks.
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11. Desktop demo
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#### 1) First clone to a new SD card in USB card reader
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In this example a new SD card in a USB card reader has been plugged in
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@@ -621,6 +632,74 @@ Verbose mode : no
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Ok to proceed with the clone? (yes/no):
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```
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#### 11) Clones from my Debian desktop
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Here are a couple of runs to show how rpi-clone looks handling more complex
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partitioning on my desktop. I have three primary partitions and extra
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extended partitions. I don't have a separate /boot partition but have
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a small first partition in case I want to change that.
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It probably won't work if there is a primary partition
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after an extended partition.
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```
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~$ sudo sys-clone sdb
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/usr/sbin/grub-install
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Booted disk: sda 275.1GB Destination disk: sdb 320.1GB
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---------------------------------------------------------------------------
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Part Size FS Label Part Size FS Label
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1 1.0GB ext4 SSD-275-G6-p1 1 320.1GB -- --
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2 root 52.4GB ext4 SSD-275-G6-p2
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3 12.6GB swap --
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4 209.0GB EXT --
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5 /home 62.9GB ext4 SSD-275-G6-p5
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6 /mnt/sda 146.1GB ext4 SSD-275-G6-p6
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---------------------------------------------------------------------------
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== Initialize: IMAGE sda partition table to sdb - FS types mismatch ==
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1 : IMAGE to sdb1
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2 root (15.3GB used) : MKFS SYNC to sdb2
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3 : MKSWAP
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5 /home (12.9GB used) : MKFS SYNC to sdb5
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6 /mnt/sda (73.1GB used) : RESIZE(191.1GB) MKFS SYNC to sdb6
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---------------------------------------------------------------------------
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Run setup script : no
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Run grub : grub-install --root-directory=/mnt/clone /dev/sdb
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Verbose mode : no
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-----------------------:
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** WARNING ** : All destination disk sdb data will be overwritten!
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: The partition structure will be imaged from sda.
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-----------------------:
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Initialize and clone to the destination disk sdb? (yes/no):
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```
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And a subsequent sync to the same disk after I have manually labeled all
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the partitions:
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```
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~$ sudo sys-clone sdb
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/usr/sbin/grub-install
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Booted disk: sda 275.1GB Destination disk: sdb 320.1GB
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---------------------------------------------------------------------------
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Part Size FS Label Part Size FS Label
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1 1.0GB ext4 SSD-275-G6-p1 1 1.0GB ext4 Maxone-320A-p1
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2 root 52.4GB ext4 SSD-275-G6-p2 2 52.4GB ext4 Maxone-320A-p2
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3 12.6GB swap -- 3 12.6GB swap --
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4 209.0GB EXT -- 4 254.0GB EXT --
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5 /home 62.9GB ext4 SSD-275-G6-p5 5 62.9GB ext4 Maxone-320A-p5
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6 /mnt/sda 146.1GB ext4 SSD-275-G6-p6 6 191.1GB ext4 Maxone-320A-p6
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---------------------------------------------------------------------------
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== SYNC sda file systems to sdb ==
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/ (15.3GB used) : SYNC to sdb2 (52.4GB size)
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/home (12.9GB used) : SYNC to sdb5 (62.9GB size)
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/mnt/sda (73.1GB used) : SYNC to sdb6 (191.1GB size)
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---------------------------------------------------------------------------
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Run setup script : no
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Run grub : grub-install --root-directory=/mnt/clone /dev/sdb
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Verbose mode : no
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-----------------------:
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Ok to proceed with the clone? (yes/no):
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```
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## Author
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Bill Wilson
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billw--at--gkrellm.net
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27
rpi-clone
27
rpi-clone
@@ -1,6 +1,6 @@
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#!/bin/bash
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version=2.0.15
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version=2.0.16
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# auto run grub-install if grub detected
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grub_auto=1
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@@ -433,6 +433,11 @@ print_options()
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else
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printf "%-22s : no\n" "Run setup script"
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fi
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if ((have_grub))
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then
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printf "%-22s : %s\n" "Run grub" \
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"grub-install --root-directory=$clone /dev/$dst_disk"
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fi
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printf "%-22s : %s\n" "Verbose mode" "$verbose"
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printf "%-23s:\n" "-----------------------"
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}
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@@ -1070,6 +1075,13 @@ then
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exclude_swapfile="--exclude $swapfile"
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fi
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if ((grub_auto)) && [ -d /boot/grub ] && command -v grub-install
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then
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have_grub=1
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else
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have_grub=0
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fi
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print_partitions
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if ((initialize))
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@@ -1446,7 +1458,7 @@ do
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unmount_list="$dst_dir $unmount_list"
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fi
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done
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echo ""
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qecho ""
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# Fix PARTUUID or device name references in cmdline.txt and fstab
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#
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@@ -1498,10 +1510,15 @@ then
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dst_root_vol_name="no label"
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fi
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if [ -d /boot/grub ] && ((grub_auto))
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if ((have_grub))
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then
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echo "grub-install --root-directory=$clone /dev/$dst_disk"
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grub-install --root-directory=$clone /dev/$dst_disk
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qecho "grub-install --root-directory=$clone /dev/$dst_disk"
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if ((quiet))
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then
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grub-install --root-directory=$clone /dev/$dst_disk &> /dev/null
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else
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grub-install --root-directory=$clone /dev/$dst_disk
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fi
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fi
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if [ "$setup_args" != "" ]
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