286 lines
11 KiB
Python
286 lines
11 KiB
Python
"""
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Copyright 2017 Oliver Smith
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This file is part of pmbootstrap.
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pmbootstrap is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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pmbootstrap is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with pmbootstrap. If not, see <http://www.gnu.org/licenses/>.
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"""
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import logging
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import os
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import glob
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import pmb.chroot
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import pmb.chroot.apk
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import pmb.chroot.other
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import pmb.chroot.initfs
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import pmb.config
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import pmb.helpers.run
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import pmb.install.blockdevice
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import pmb.install.file
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import pmb.install.recovery
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import pmb.install
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def mount_device_rootfs(args, suffix="native"):
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"""
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Mount the device rootfs.
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"""
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mountpoint = "/mnt/rootfs_" + args.device
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pmb.helpers.mount.bind(args, args.work + "/chroot_rootfs_" + args.device,
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args.work + "/chroot_" + suffix + mountpoint)
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return mountpoint
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def get_subpartitions_size(args):
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"""
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Calculate the size of the whole image and boot subpartition.
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:returns: (full, boot) the size of the full image and boot
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partition as integer in bytes
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"""
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# Calculate required sizes first
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chroot = args.work + "/chroot_rootfs_" + args.device
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root = pmb.helpers.other.folder_size(args, chroot)
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boot = pmb.helpers.other.folder_size(args, chroot + "/boot")
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home = pmb.helpers.other.folder_size(args, chroot + "/home")
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# The home folder gets omitted when copying the rootfs to
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# /dev/installp2
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full = root - home
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# Add some free space, see also:
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# https://github.com/postmarketOS/pmbootstrap/pull/336
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full *= 1.20
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boot += 15 * 1024 * 1024
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return (full, boot)
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def copy_files_from_chroot(args):
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"""
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Copy all files from the rootfs chroot to /mnt/install, except
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for the home folder (because /home will contain some empty
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mountpoint folders).
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"""
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# Mount the device rootfs
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logging.info("(native) copy rootfs_" + args.device + " to" +
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" /mnt/install/")
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mountpoint = mount_device_rootfs(args)
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mountpoint_outside = args.work + "/chroot_native" + mountpoint
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# Get all folders inside the device rootfs (except for home)
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folders = []
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for path in glob.glob(mountpoint_outside + "/*"):
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if path.endswith("/home"):
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continue
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folders += [os.path.basename(path)]
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# Run the copy command
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pmb.chroot.root(args, ["cp", "-a"] + folders + ["/mnt/install/"],
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working_dir=mountpoint)
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def copy_files_other(args):
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"""
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Copy over keys, create /home/user.
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"""
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# Copy over keys
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rootfs = args.work + "/chroot_native/mnt/install"
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for key in glob.glob(args.work + "/config_apk_keys/*.pub"):
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pmb.helpers.run.root(args, ["cp", key, rootfs + "/etc/apk/keys/"])
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# Create /home/user
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pmb.helpers.run.root(args, ["mkdir", "-p", rootfs + "/home/user"])
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pmb.helpers.run.root(args, ["chown", pmb.config.chroot_uid_user,
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rootfs + "/home/user"])
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def set_user_password(args):
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"""
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Loop until the passwords for user and root have been changed successfully.
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"""
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logging.info(" *** SET LOGIN PASSWORD FOR: 'user' ***")
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suffix = "rootfs_" + args.device
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while True:
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try:
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pmb.chroot.root(args, ["passwd", "user"], suffix, log=False)
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break
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except RuntimeError:
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logging.info("WARNING: Failed to set the password. Try it"
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" one more time.")
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pass
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def copy_ssh_key(args):
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"""
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Offer to copy user's SSH public key to the device if it exists
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"""
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user_ssh_pubkey = os.path.expanduser("~/.ssh/id_rsa.pub")
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target = args.work + "/chroot_native/mnt/install/home/user/.ssh"
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if os.path.exists(user_ssh_pubkey):
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if pmb.helpers.cli.confirm(args, "Would you like to copy your SSH public key to the device?"):
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pmb.helpers.run.root(args, ["mkdir", target])
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pmb.helpers.run.root(args, ["chmod", "700", target])
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pmb.helpers.run.root(args, ["cp", user_ssh_pubkey, target + "/authorized_keys"])
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pmb.helpers.run.root(args, ["chown", "-R", "12345:12345", target])
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else:
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logging.info("NOTE: No public SSH key found, you will only be able to use SSH password authentication!")
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def setup_keymap(args):
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"""
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Set the keymap with the setup-keymap utility if the device requires it
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"""
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suffix = "rootfs_" + args.device
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info = pmb.parse.deviceinfo(args, device=args.device)
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if "keymaps" not in info or info["keymaps"].strip() == "":
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logging.info("NOTE: No valid keymap specified for device")
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return
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options = info["keymaps"].split(' ')
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if (args.keymap != "" and
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args.keymap is not None and
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args.keymap in options):
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layout, variant = args.keymap.split("/")
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pmb.chroot.root(args, ["setup-keymap", layout, variant], suffix, log=False)
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else:
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logging.info("NOTE: No valid keymap specified for device")
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def install_system_image(args):
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# Partition and fill image/sdcard
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logging.info("*** (3/5) PREPARE INSTALL BLOCKDEVICE ***")
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pmb.chroot.shutdown(args, True)
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(size_image, size_boot) = get_subpartitions_size(args)
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pmb.install.blockdevice.create(args, size_image)
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pmb.install.partition(args, size_boot)
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pmb.install.format(args)
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# Just copy all the files
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logging.info("*** (4/5) FILL INSTALL BLOCKDEVICE ***")
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copy_files_from_chroot(args)
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copy_files_other(args)
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# If user has a ssh pubkey, offer to copy it to device
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copy_ssh_key(args)
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pmb.chroot.shutdown(args, True)
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# Convert system image to sparse using img2simg
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if args.deviceinfo["flash_sparse"] == "true":
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logging.info("(native) make sparse system image")
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pmb.chroot.apk.install(args, ["libsparse"])
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sys_image = args.device + ".img"
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sys_image_sparse = args.device + "-sparse.img"
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pmb.chroot.user(args, ["img2simg", sys_image, sys_image_sparse],
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working_dir="/home/user/rootfs/")
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pmb.chroot.user(args, ["mv", "-f", sys_image_sparse, sys_image],
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working_dir="/home/user/rootfs/")
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# Kernel flash information
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logging.info("*** (5/5) FLASHING TO DEVICE ***")
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logging.info("Run the following to flash your installation to the"
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" target device:")
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logging.info("* pmbootstrap flasher flash_kernel")
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logging.info(" Flashes the kernel + initramfs to your device:")
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logging.info(" " + args.work + "/chroot_rootfs_" + args.device +
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"/boot")
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method = args.deviceinfo["flash_methods"]
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if (method in pmb.config.flashers and "boot" in
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pmb.config.flashers[method]["actions"]):
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logging.info(" (NOTE: " + method + " also supports booting"
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" the kernel/initramfs directly without flashing."
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" Use 'pmbootstrap flasher boot' to do that.)")
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# System flash information
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if not args.sdcard:
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logging.info("* pmbootstrap flasher flash_system")
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logging.info(" Flashes the system image, that has been"
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" generated to your device:")
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logging.info(" " + args.work + "/chroot_native/home/user/rootfs/" +
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args.device + ".img")
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logging.info(" (NOTE: This file has a partition table,"
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" which contains a boot- and root subpartition.)")
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# Export information
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logging.info("* If the above steps do not work, you can also create"
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" symlinks to the generated files with 'pmbootstrap flasher"
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" export [export_folder]' and flash outside of pmbootstrap.")
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def install_recovery_zip(args):
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logging.info("*** (3/4) CREATING RECOVERY-FLASHABLE ZIP ***")
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suffix = "buildroot_" + args.deviceinfo["arch"]
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mount_device_rootfs(args, suffix)
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pmb.install.recovery.create_zip(args, suffix)
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# Flash information
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logging.info("*** (4/4) FLASHING TO DEVICE ***")
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logging.info("Run the following to flash your installation to the"
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" target device:")
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logging.info("* pmbootstrap flasher --method adb sideload")
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logging.info(" Flashes the installer zip to your device:")
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# Export information
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logging.info("* If this does not work, you can also create a"
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" symlink to the generated zip with 'pmbootstrap flasher"
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" export --android-recovery-zip [export_folder]' and"
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" flash outside of pmbootstrap.")
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def install(args):
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# Number of steps for the different installation methods.
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steps = 4 if args.android_recovery_zip else 5
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# Install required programs in native chroot
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logging.info("*** (1/{}) PREPARE NATIVE CHROOT ***".format(steps))
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pmb.chroot.apk.install(args, pmb.config.install_native_packages,
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build=False)
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# List all packages to be installed (including the ones specified by --add)
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# and upgrade the installed packages/apkindexes
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logging.info('*** (2/{0}) CREATE DEVICE ROOTFS ("{1}") ***'.format(steps,
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args.device))
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install_packages = (pmb.config.install_device_packages +
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["device-" + args.device])
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if args.ui.lower() != "none":
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install_packages += ["postmarketos-ui-" + args.ui]
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suffix = "rootfs_" + args.device
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pmb.chroot.apk.upgrade(args, suffix)
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# Explicitly call build on the install packages, to re-build them or any
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# dependency, in case the version increased
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if args.extra_packages.lower() != "none":
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install_packages += args.extra_packages.split(",")
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if args.add:
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install_packages += args.add.split(",")
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for pkgname in install_packages:
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pmb.build.package(args, pkgname, args.deviceinfo["arch"])
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# Install all packages to device rootfs chroot (and rebuild the initramfs,
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# because that doesn't always happen automatically yet, e.g. when the user
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# installed a hook without pmbootstrap - see #69 for more info)
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pmb.chroot.apk.install(args, install_packages, suffix)
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pmb.install.file.write_os_release(args, suffix)
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for flavor in pmb.chroot.other.kernel_flavors_installed(args, suffix):
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pmb.chroot.initfs.build(args, flavor, suffix)
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# Set the user password
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set_user_password(args)
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# Set the keymap if the device requires it
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setup_keymap(args)
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if args.android_recovery_zip:
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install_recovery_zip(args)
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else:
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install_system_image(args)
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