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* base-files: add missing $IPKG_INSTROOT to restorecon callDaniel Golle2022-05-02
| | | | | | | Update to overlooked v2 version of Dominick Grift's patch. Fixes: 5109bd164c ("base-files: address sed in-place without SELinux awareness") Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: address sed in-place without SELinux awarenessDominick Grift2022-05-02
| | | | | | | | | | | | sed(1) in busybox does not support this functionality: https://git.savannah.gnu.org/cgit/sed.git/tree/sed/execute.c#n598 This causes /etc/group to become mislabeled when a package requests that a uid/gid be added on OpenWrt with SELinux Signed-off-by: Daniel Golle <daniel@makrotopia.org> [move restorecon inside lock] Signed-off-by: Dominick Grift <dominick.grift@defensec.nl>
* base-files: fix sysupgrade for kernel-out-of-UBIRodrigo Balerdi2022-05-02
| | | | | | | | | | | | | | | | | | | | Commit ecbcc0b59551 bricks devices on which the raw kernel and UBI mtd partitions overlap. This is the case of the ZyXEL NR7101 for example. Its OEM bootloader has no UBI support. OpenWrt splits the stock kernel mtd partition into a raw kernel part used by the bootloader and a UBI part used to store rootfs and rootfs_data. Running mtd erase on the complete partition during sysupgrade erases the UBI part and results in a soft brick. Arguably the best solution would be to fix the partition layouts so that kernel and UBI partitions do not overlap, also including a stock_kernel partition to help reverting to stock firmware. This would have the added benefit of protecting UBI from kernel images that are excessively large. Fixes: ecbcc0b59551 ("base-files: safer sysupgrade.tar for kernel-out-of-UBI") Reported-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: minimize critical time in sysupgradeRodrigo Balerdi2022-04-19
| | | | | | | | Attempt to minimize the time during which an interrupted nand sysupgrade can lead to a non-functional device by flushing caches before starting the upgrade procedure. Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: trim unnecessary nand sysupgrade codeRodrigo Balerdi2022-04-19
| | | | | | Remove unnecessary sync commands during nand sysupgrade. Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: fix issues in nand sysupgradeRodrigo Balerdi2022-04-19
| | | | | | | | | Fix issues while retaining configuration during nand sysupgrade: - abort configuration saving if data partition is not found - generate diagnostics if saving fails (eg, because of lack of space) - do not output "sysupgrade successful" in case of errors Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: clean up nand sysupgrade codeRodrigo Balerdi2022-04-19
| | | | | | Fix some inconsistent quoting in nand sysupgrade code. Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: clean up ubinized sysupgrade codeRodrigo Balerdi2022-04-19
| | | | | | | | Remove redundant check from nand ubinized sysupgrade code. This check has already been done in the only caller of the affected function: nand_do_upgrade. Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: clean up nand tar sysupgrade codeRodrigo Balerdi2022-04-19
| | | | | | | | | | | | | | | | | Prepares code for ubirename-based safe sysupgrade implementation. Fixes several issues: - the special CI_KERNPART value "none" is ignored if an MTD partition named "none" exists - misleading variable names (such as has_kernel to mean "tar has kernel and it should not be written to an MTD partition but a UBI volume") - inconsistent treatment of zero-length tar member files - inconsistent meaning of "0" and "" variable values - redundant operations (unneeded untaring, repeated untaring, unneeded partition lookups) - inconsistent variable quoting Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: safer sysupgrade.tar for kernel-out-of-UBIRodrigo Balerdi2022-04-19
| | | | | | | | | Ensure that the kernel CRC is invalidated while rootfs is being updated. This allows the bootloader to detect an interrupted sysupgrade and fall back to an alternate booting method, such as TFTP, instead of just going ahead with normal boot and effectively bricking the device. Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: safer sysupgrade for kernel-in-UBI devicesRodrigo Balerdi2022-04-19
| | | | | | | | | | | | | | Ensure that the kernel CRC is invalidated while rootfs is being updated. This allows the bootloader to detect an interrupted sysupgrade and fall back to an alternate booting method, instead of just going ahead with normal boot and effectively bricking the device. Possible fallbacks include a recovery initramfs partition or UBI volume and TFTP. See here for an example U-Boot configuration with fallbacks: https://shorturl.at/befsA (https://github.com/Lanchon/openwrt-tr4400-v2/ blob/e7d707d6bd7839fbd0b8d0bd180fce451df77e47/install-recovery.sh#L52-L63) Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: fix nand sysupgrade commentsRodrigo Balerdi2022-04-19
| | | | | | Erroneous comments possibly applied to an earlier code revision. Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: improve sysupgrade ubiblock handlingRodrigo Balerdi2022-04-19
| | | | | | Only remove ubiblock devices required for nand sysupgrade. Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: emit diagnostics on sysupgrade abortRodrigo Balerdi2022-04-19
| | | | | | | Emit diagnostics if nand sysupgrade is aborted because UBI partition cannot be attached. Also avoid redudndant checks. Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
* base-files: more robust sysupgrade on NANDDaniel Golle2022-04-13
| | | | | | | | | Make sure sysupgrade on NAND also works in case of UBI volumes having index >9. While at it, also make sure UBI device is detected and abort in case it isn't. Use Shell built-in shorthand ':' instead of 'true'. Fixes #9708 Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* ipq40xx: Support Chromium OS image-type creationBrian Norris2022-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | See firmware-utils.git commits [1], which implemented the cros-vbutil verified-boot payload-packing tool, and extended ptgen for the CrOS kernel partition type. With these, it's now possible to package kernel + rootfs to make disk images that can boot a Chrome OS-based system (e.g., Chromebooks, or even a few AP models). Regarding PARTUUID= changes: Chromium bootloaders work well with a partition number offset (i.e., relative to the kernel partition), so we'll be using a slightly different root UUID line. NB: I've made this support specific to ip40xx for now, because I only plan to support an IPQ4019-based AP that uses a Chromium-based bootloader, but this image format can be used for essentially any Chromebook, as well as the Google OnHub, a prior Chromium-based AP using an IPQ8064 chipset. [1] ptgen: add Chromium OS kernel partition support https://git.openwrt.org/?p=project/firmware-utils.git;a=commit;h=6c95945b5de973026dc6f52eb088d0943efa96bb cros-vbutil: add Chrome OS vboot kernel-signing utility https://git.openwrt.org/?p=project/firmware-utils.git;a=commit;h=8e7274e02fdc6f2cb61b415d6e5b2e1c7e977aa1 Signed-off-by: Brian Norris <computersforpeace@gmail.com>
* base-files: Align rootfs_data upgrades to 64KiB on eMMCBrian Norris2022-03-16
| | | | | | | | | | | Rootfs overlays get created at a ROOTDEV_OVERLAY_ALIGN (64KiB) alignment after the rootfs, but emmc_do_upgrade() is assuming it comes at the very next 512-byte sector. Suggested-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com> (move spaces around, mention fstools' libtoolfs) Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
* base-files: make sure tools are present in sysupgrade ramdiskDaniel Golle2022-02-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Not all targets create /var/lock or touch /var/lock/fw_printenv.lock in their platform.sh. This is problematic as fw_printenv then fails in case /var/lock/fw_printenv.lock has not been created by previous calls to fw_printenv/fw_setenv before sysupgrade is run. Targets using fw_printenv/fw_setenv during sysupgrade: * ath79/* * ipq40xx/* * ipq806x/* * kirkwood/* * layerscape/* * mediatek/mt7622 * mvebu/* * ramips/* * realtek/* Targets currently using additional steps in /lib/upgrade/platform.sh to make sure /var/lock/fw_printenv.lock (or at least /var/lock) actually exists: * ath79/* (openmesh devices) * ipq40xx/* (linksys devices) * ipq806x/* (linksys devices) * kirkwood/* (linksys devices) * layerscape/* * mvebu/cortexa9 (linksys devices) Given that accessing the U-Boot environment during sysupgrade is not uncommon and the situation across targets is currently quite diverse, just make sure both tools as well fw_env.config are always copied to the ramdisk used for sysupgrade. Also make sure /var/lock always exists. This now allows to remove copying of fw_printenv/fw_setenv as well as fw_env.config, creation of /var/lock or even /var/lock/fw_printenv.lock from lib/upgrade/platform.sh or files included there. As the same applies also to 'fwtool' which is used by generic eMMC sysupgrade, also always copy that to ramdisk. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: add support for heartbeat led triggerAlexey Smirnov2022-02-19
| | | | | | | | | | | This patch adds support for creation heartbeat led trigger with, for example, this command: ucidef_set_led_heartbeat "..." "..." "..." from /etc/board.d/01_leds. Signed-off-by: Alexey Smirnov <s.alexey@gmail.com>
* base-files: Make sure rootfs_data_max is consideredDaniel Golle2022-02-17
| | | | | | | | | | | | | | | For sysupgrade on NAND/UBI devices there is the U-Boot environment variable rootfs_data_max which can be used to limit the size of the rootfs_data volume created on sysupgrade. This stopped working reliable with recent kernels, probably due to a race condition when reading the number of free erase blocks from sysfs just after removing a volume. Change the script to just try creating rootfs_data with the desired size and retry with maximum size in case that fails. Hence calculating the available size in the script can be dropped which works around the problem. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: upgrade: fix efi partitions size calculationJavier Marcet2021-12-27
| | | | | | | | | We were missing (not using) the last sector of each partition, compared with the output of gparted. Signed-off-by: Javier Marcet <javier@marcet.info> [moved the dot] Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
* base-files: add eMMC sysupgrade supportEnrico Mioso2021-12-02
| | | | | | | | | | | | | | | | | | | | | | | | | Adds generic support for sysupgrading on eMMC-based devices. Provide function emmc_do_upgrade and emmc_copy_config to be used in /lib/upgrade/platform.sh instead of redundantly implementing the same logic over and over again. Similar to generic sysupgrade on NAND, use environment variables CI_KERNPART, CI_ROOTPART and newly introduce CI_DATAPART to indicate GPT partition names to be used. On devices with more than one MMC block device, CI_ROOTDEV can be used to specify the MMC device for partition name lookups. Also allow to select block devices directly using EMMC_KERN_DEV, EMMC_ROOT_DEV and EMMC_DATA_DEV, as using GPT partition names is not always an option (e.g. when forced to use MBR). To easily handle writing kernel and rootfs make use of sysupgrade.tar format convention which is also already used for generic NAND support. Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com> Signed-off-by: Daniel Golle <daniel@makrotopia.org> CC: Li Zhang <li.zhang@gl-inet.com> CC: TruongSinh Tran-Nguyen <i@truongsinh.pro>
* base-files: dont always create kernel UBI volumeRobert Marko2021-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | Currently nand_upgrade_tar() will pass the kernel length to nand_upgrade_prepare_ubi() in all cases except for when the kernel is to be installed in a separate partition as a binary with the MTD tool. While this is fine for almost all cases newer MikroTik NAND devices like hAP ac3 require the kernel to be installed as a UBIFS packed UBI volume in its own partition. So, since we have a custom recipe to use ubiformat to flash the kernel in its partition it makes no sense for sysupgrade to also install the kernel as a UBI volume in the "ubi" partition as it only wastes space and will never be used. So, simply check whether CI_KERNPART is set to "none" and if so unset the "has_kernel" variable which will in turn prevent the kernel length from being passed on and then the kernel UBI volume wont be created for no usefull purpose. The ath79 MikroTik NAND target has been setting CI_KERNPART to "none" for a while now altough that was not preventing the kernel to be installed as UBI volume as well. Signed-off-by: Robert Marko <robimarko@gmail.com>
* base-files: stage2: improve /proc/*/stat parserDaniel Golle2021-11-13
| | | | | | | | | | | Simply reading /proc/*/stat as a space-separated string will not work as the process name may itself contain spaces. Hence we must match on the '(' and ')' characters around the process name and can then handle the remaining string as space-separated values. This fixes shell error messages which have been popping up the console due to spaces in process names being interpreted as field separators. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: drop get_partition_by_name shell functionDaniel Golle2021-11-01
| | | | | | | find_mmc_part provides a better alternative and all users of get_partition_by_name have been removed. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: allow specifiying rootdev for find_mmc_partDaniel Golle2021-11-01
| | | | | | | | Some devices got more than one mmc device. Allow specifying the root device as 2nd parameter of find_mmc_part so scripts can avoid matching irrelevant partitions on wrong mmc device. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: add minimal mmc supportDavide Fioravanti2021-11-01
| | | | | | | | | | | | | | | | Added minimal mmc support for helper functions: - find_mmc_part: Look for a given partition name. Returns the coresponding partition path - caldata_extract_mmc: Look for a given partition name and then extracts the calibration data - mmc_get_mac_binary: Returns the mac address from a given partition name and offset Signed-off-by: Davide Fioravanti <pantanastyle@gmail.com> Signed-off-by: Robert Marko <robimarko@gmail.com> [replace dd with caldata_dd, moved sysupgrade mmc to orbi] Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
* base-files, metadata: support additional group membershipDaniel Golle2021-10-28
| | | | | | | | | | | | Some packages may require additional group membership for the system user added by that package. Allow defining additional groups as third member of the ':'-separated tuple, allowing to specify multiple ','-separated groups with optional GID. Example: USERID:=foouser=1000:foogroup=1000:addg1=1001,addg2=1002,addg3 Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: rename 'sdcard' to 'legacy-sdcard'Daniel Golle2021-08-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While an image layout based on MBR and 'bootfs' partition may be easy to understand for users who are very used to the IBM PC and always have the option to access the SD card outside of the device (and hence don't really depend on other recovery methods or dual-boot), in my opinion it's a dead end for many desirable features on embedded systems, especially when managed remotely (and hence without an easy option to access the SD card using another device in case things go wrong, for example). Let me explain: * using a MSDOS/VFAT filesystem to store kernel(s) is problematic, as a single corruption of the bootfs can render the system into a state that it no longer boots at all. This makes dual-boot useless, or at least very tedious to setup with then 2 independent boot partitions to avoid the single point of failure on a "hot" block (the FAT index of the boot partition, written every time a file is changed in bootfs). And well: most targets even store the bootloader environment in a file in that very same FAT filesystem, hence it cannot be used to script a reliable dual-boot method (as loading the environment itself will already fail if the filesystem is corrupted). * loading the kernel uImage from bootfs and using rootfs inside an additional partition means the bootloader can only validate the kernel -- if rootfs is broken or corrupted, this can lead to a reboot loop, which is often a quite costly thing to happen in terms of hardware lifetime. * imitating MBR-boot behavior with a FAT-formatted bootfs partition (like IBM PC in the 80s and 90s) is just one of many choices on embedded targets. There are much better options with modern U-Boot (which is what we use and build from source for all targets booting off SD cards), see examples in mediatek/mt7622 and mediatek/mt7623. Hence rename the 'sdcard' feature to 'legacy-sdcard', and prefix functions with 'legacy_sdcard_' instead of 'sdcard_'. Tested-by: Stijn Tintel <stijn@linux-ipv6.be> Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: add generic sdcard upgrade methodStijn Tintel2021-08-07
| | | | | | | | Add a generic sdcard upgrade method instead of duplicating code in yet another target, and add a feature flag to only install this upgrade method in targets that set this flag. Copied from mvebu. Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
* base-files: upgrade: try umount lvm and loop devicesDaniel Golle2021-08-04
| | | | | | | | Try umount on device mapper and loop devices still mounted, so the subsequent call to disactivate all physical volumes and delete all loop devices is more likely to succeed. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: sysupgrade stage2: fix losetup detectionDaniel Golle2021-08-03
| | | | | | | | | | | | If the busybox applet losetup was selected, `command -v` selects that during sysupgrade. As this applet is in another path and doesn't cover the '-D' option which is used to make sure user-defined loop devices are no longer active during sysupgrade. Detect losetup at the path of the full utility to avoid error messages in case of the busybox applet being selected. Reported-by: fda77 <fda77@users.noreply.github.com> Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: bring up vlan interface tooLuiz Angelo Daros de Luca2021-06-22
| | | | | | | Vlan subinterface was never brought up when using vlan-based preinit network. Tested forcing ifname="" before preinit_ip() on a Tp-Link Archer C5v4. Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
* base-files: failsafe: Remove the VLAN modifier from interface nameHauke Mehrtens2021-06-22
| | | | | | | Some interfaces have a VLAN modifier like :t in lan1:t, this modifier should be removed from the interface before calling preinit_ip_config(). Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
* base-files: failsafe: Fix IP configurationHauke Mehrtens2021-06-22
| | | | | | | | | | | | | Adapt the preinit_config_board() to the board.json network changes. It now looks for the device and the ports variables to configure the LAN network. This works with swconfig configurations. Fixes: FS#3866 Fixes: d42640e389a8 ("base-files: use "ports" array in board.json network for bridges") Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Reviewed-by: Rafał Miłecki <rafal@milecki.pl>
* base-files: redirect kill ouptut for ash, telnetd and dropbearFlorian Eckert2021-06-20
| | | | | | | | | | | If one of the programmes is not running, then we see the following output in the logs. `killall: telnetd: no process killed` To ensure that the log is clean, redirect the output to /dev/null Signed-off-by: Florian Eckert <fe@dev.tdt.de>
* base-files: remove unused vn and _vn functionFlorian Eckert2021-06-20
| | | | | | | The remaining vn calls have been ported to v. Therefore, these functions are no longer needed and will be removed. Signed-off-by: Florian Eckert <fe@dev.tdt.de>
* base-files: change logging for upgrade on stage2Florian Eckert2021-06-20
| | | | | | | Remove vn call in favour of v call. This commit serves as preparation for removing the vn function call. Signed-off-by: Florian Eckert <fe@dev.tdt.de>
* base-files: add syslog logging for v functionFlorian Eckert2021-06-20
| | | | | | | | The logging output should not only be displayed in the calling shell session but also in the syslog. A sysupgrade and a configuration import, export can thus be traced in the syslog. Signed-off-by: Florian Eckert <fe@dev.tdt.de>
* base-files: upgrade: use zcat command provided by busyboxChuck Fan2021-06-20
| | | | | | | | | | | Calling `switch_to_ramfs()` will not copy the gzip executable (/bin/gzip) to ramfs, but `/bin/zcat` will call `/bin/gzip` when package gzip is installed, instead of the busybox-supplied zcat. This will cause `zcat` to fail to find `gzip`, then cause the sysupgrade to fail. Adding the `busybox` prefix here will solve the problem. Signed-off-by: Chuck Fan <fanck0605@qq.com>
* busybox: disable bzip2Sergey Ponomarev2021-06-20
| | | | | | | | | | bzip2 adds about 8kb of size. For tiny builds it's often disabled. It's not directly used by stock OpenWrt programs. Kernel images compressed with bzip2 are also not fully supported. Signed-off-by: Sergey Ponomarev <stokito@gmail.com> [fix \ indention] Signed-off-by: Paul Spooren <mail@aparcar.org>
* base-files: upgrade: use procd to kill managed daemonsMichael Pratt2021-06-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | These processes are managed by procd and set to start again when killed via the procd instance parameter "respawn" being set during init. Example: procd_set_param respawn 3600 1 0 When they are killed manually during sysupgrade, they are started again in 5 seconds or less, depending on how the "respawn" parameter is set. Use procd through ubus to disable the instances that respawn them, however, allow dnsmasq, netifd, and logd to restart for remote logging. Properly closing all these processes increases free memory by about 3 MB, which should help low memory devices upgrade without crashing. For very low memory devices (set to 32 MB for now) also kill dnsmasq, netifd, and logd for an additional 3 MB of free memory. Also, bump sleep values to allow at least 10 seconds for network interfaces and daemons to come up after they are killed and restarted before caches are dropped. Signed-off-by: Michael Pratt <mcpratt@pm.me>
* base-files: generate network config with "device" optionsRafał Miłecki2021-05-27
| | | | | | | Replace "ifname" with "device" as netifd has been recently patches to used the later one. It's more clear and accurate. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
* base-files: use "ports" array in board.json network for bridgesRafał Miłecki2021-05-18
| | | | | | | | | | | | | | | | | | | | | | | | | Bridge aggregates multiple ports so use a more accurate name ("ports") and format (array) for storing them in board.json. Example: "network": { "lan": { "ports": [ "lan1", "lan2", "lan3", "lan4" ], "protocol": "static" }, "wan": { "ifname": "wan", "protocol": "dhcp" } } Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
* base-files: change logging for upgrade on fwtoolFlorian Eckert2021-05-17
| | | | | | | | | Remove vn call in favour of v call. This commit serves as preparation for removing the v function call. Signed-off-by: Florian Eckert <fe@dev.tdt.de> [alter slightly to prevent double space after colon] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
* base-files: upgrade: take down loop and LVM before upgradeDaniel Golle2021-05-05
| | | | | | | | | | | | | | Users of devices with large block storage may choose to have an LVM partition on the same device which is used for booting OpenWrt. The presents a problem during sysupgrade as the root device is then still busy and changing partitions will not work as desired, leading to data corruption in case the newly flashed image is larger than the currently installed one. Having loop devices setup causes similar havoc. Make sure all volume groups are offline and all loop devices have been released before sysupgrade. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: functions: introduce new helper functionsDaniel Golle2021-03-31
| | | | | | | | | | | Introduce cmdline_get_var() to /lib/function.sh and make use of it in export_rootdev() in /lib/upgrade/common.sh, making the code more simple and removing one level of indentation. Introduce get_partition_by_name() to /lib/upgrade/common.sh which is useful on non-EFI GPT platforms like mt7622. Remove some dead-code while at it. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: add support for restoring config from tmpfsDaniel Golle2021-02-28
| | | | | | | | Instead of only relying in /sysupgrade.tgz being present in rootfs to restore configuration, also grab /tmp/sysupgrade.tar which may have magically gotten there during preinit... Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* base-files: remove unneeded '$' signs in nand.shDaniel Golle2021-02-24
| | | | | | | When using Shell arithmetric evaluation via $((..)) the variables in the expression do not need to be prefixed by the '$' sign. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* sysupgrade-nand: allow limiting rootfs_data by setting env variableDaniel Golle2021-02-24
| | | | | | | | | | | | | | | | | Check if firmware environment variable 'rootfs_data_max' exists and is set to a numerical value greater than 0. If so, limit rootfs_data volume to that size instead of using the maximum available size. This is useful on devices with lots of flash where users may want to have eg. a volume for persistent logs and statistics or for external applications/containers. Persistence on rootfs overlay is limited by the size of memory available during the sysugprade process as that data needs to be copied to RAM while the volume is being recreated during sysupgrade. Hence it is unsuitable for keeping larger amounts of data accross upgrade which makes additional volume(s) for application data desirable. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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