Launch on boot

Author: d | 2025-04-24

★★★★☆ (4.4 / 3616 reviews)

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or: boot on a Boot-Repair-Disk. Boot-Repair will be launched automatically. Boot-Repair will be launched automatically. USE BOOT-REPAIR: Launch Boot-Repair, then click the Recommended repair button. APKPure uses signature verification to ensure virus-free Launch on boot APK downloads for you. Old Versions of Launch on boot. Launch on boot 1.1.1. 4.7 MB . Download. Launch on boot 1.1.0. 1.8 MB . Download. Launch on boot 1.0.8. 1.8 MB . Download. All Versions. Launch on boot Alternative. Quick Boot (Reboot)

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Launch on Boot - Launches an application when the device boots

Common on older computers (from 2013 or earlier), but they could exist on anything. Disabling Secure Boot may be the best solution to such problems.In 2020, a bug in GRUB 2, known as Boot Hole, was discovered. This bug could theoretically enable an attacker to run malicious code in the pre-boot environment. Subsequent analyses discovered several other potential security bugs in GRUB 2. Because there are so many signed GRUB 2 binaries in distribution, these flaws threatened to overrun the standard Secure Boot storage for forbidden binaries, known as the dbx. (The dbx is held in NVRAM, which is severely limited in size.) Thus, Linux distribution maintainers agreed to implement a dbx-like mechanism within Shim, and Microsoft would add earlier Shim binaries to the UEFI dbx. The upshot of this is that, if you installed rEFInd prior to these events, the Shim binary that it uses may be added to your computer's dbx by Windows updates, and rEFInd may stop working. The solution is to update the shimx64.efi file in rEFInd's directory with the latest version.As a follow-on to the preceding point, versions of Shim released since early 2021 require that signed EFI binaries launched by Shim include version information. This is known as the Secure Boot Advanced Targeting (SBAT) system, and the version information is stored in a part of the boot program binary known as .sbat. Starting with rEFInd 0.14.0, rEFInd builds an .sbat section. If you're using a version of Shim that was released prior to early 2021, you might want to consider upgrading it to a newer version. Note that the Shim that launches rEFInd is not updated automatically when a new Shim is installed; you must do this manually! If you completely control Secure Boot on your computer, or if you disable Secure Boot, then SBAT is irrelevant; it provides no benefit, and the .sbat section in rEFInd does no harm.If you launch a boot loader or other program from rEFInd that relies on the EFI's standard program-launching code, that program should take advantage of Shim and its MOKs. For instance, if you launch gummiboot (aka systemd-boot) from rEFInd (and rEFInd from Shim), gummiboot should be able to launch Shim/MOK-signed Linux kernels. In practice, this may not work with all versions of Shim, though. Shim 0.8 and later enables the binary that it launches to launch just one additional binary, not an endless stream of them. (rEFInd employs an internal workaround to this problem to do its own job.)My focus in testing rEFInd's Secure Boot capabilities has been on getting Linux kernels with EFI stub loaders to launch correctly. I've done some minimal testing with GRUB 2, though. I've also tested some self-signed binaries, such To contain bugs that could be exploited to create security problems.PreLoader and recent versions of Shim are easier to set up on a distribution that doesn't support Secure Boot because these tools don't require the use of keys; instead, you can tell them which binaries you trust and they will let you launch them. This works well on a system with boot managers, boot loaders, and kernels that seldom change. It's not a good solution for distribution maintainers, though, because it requires that users manually add binaries to the MOK's list of approved binaries when the OS is installed and every time those binaries change. Also, PreLoader relies on a helper program, HashTool, to enroll hashes. ("Hash" is Geek for "tell the computer that a binary is OK.") Unfortunately, the initial (and, as far as I know, only signed) HashTool can enroll hashes only from the partition from which it was launched, so if you want to use rEFInd to launch Linux kernels directly, it's easiest if you mount your EFI System Partition (ESP) at /boot in Linux or copy your kernels to the ESP. Another approach is to copy HashTool.efi to the partition that holds your kernel and rename it to almost anything else. rEFInd will then treat it like an OS boot loader and create a menu entry for it, enabling you to launch it as needed. Recent versions of Shim's key- and hash-management tool, MokManager, support reading keys and binaries from any partition that the EFI can read.rEFInd can communicate with the Shim system to authenticate boot loaders. If a boot loader has been signed by a valid UEFI Secure Boot key, a valid Shim key, or a valid MOK, rEFInd will launch it. rEFInd will also launch unsigned boot loaders or those with invalid signatures if Secure Boot is disabled in or unsupported by the firmware. (If that's your situation, you needn't bother reading this page.) PreLoader is designed in such a way that it requires no explicit support in rEFInd to work.My binary builds of rEFInd version 0.5.0 and later ship signed with my own keys, and I provide the public version of this key with the rEFInd package. This can help simplify setup, since you needn't generate your own keys to get rEFInd working. The rEFInd PPA for Ubuntu ships unsigned binaries, but the installation script that runs automatically when the package is installed signs the binaries with a local key as it installs them. In either case, if you lack public keys for the boot loaders that rEFInd launches, you'll need to sign your boot loaders, as described in the Managing Your MOKs section. Public keys matching most signed binaries are available, though,

Intel Unison not launching on boot not

What is rEFInd? rEFInd is a fork of the rEFIt boot manager. Like rEFIt, rEFInd can auto-detect your installed EFI boot loaders and it presents a pretty GUI menu of boot options. rEFInd goes beyond rEFIt in that rEFInd better handles systems with many boot loaders, gives better control over the boot loader search process, and provides the ability for users to define their own boot loader entries. Features 编组 7 Support for EFI 1.x and UEFI 2.x computers 编组 3 Support for Mac and PC platforms 编组 6 Graphical and text-mode boot selector 编组 5 Auto-detection of available EFI boot loaders 编组 4 Directly launch Linux 3.3.0 and later kernels with EFI stub loader support 编组 2 Maintenance-free Linux kernel updates -- boot-time auto-detection means that no configuration file changes are needed after a kernel update Manually edit boot-time options Launch EFI programs such as an EFI shell (available from third parties) Launch OS X and Windows recovery tools Reboot into the firmware setup utility (on some UEFIs) Try before installation via a CD-R or USB flash drive image Secure Boot support (requires separate shim or PreLoader program) Includes EFI drivers for ext2/3fs, ext4fs, ReiserFS, Btrfs, HFS+, NTFS, and ISO-9660 Project Samples User Reviews & Ratings 50 Reviews ok Awesome work Really happy it worked as described. The documentation is outstanding. Very helpful in understanding what going with the Mac and SIP. BTW I was able to install from a flash drive without having take an extra step is altering SIP. And it provides boot options both bootable option (I have a backup) plus Recovery Mode. Now Linux install is nextThanks installed but don't know how to use... is perfect firmware. or: boot on a Boot-Repair-Disk. Boot-Repair will be launched automatically. Boot-Repair will be launched automatically. USE BOOT-REPAIR: Launch Boot-Repair, then click the Recommended repair button. APKPure uses signature verification to ensure virus-free Launch on boot APK downloads for you. Old Versions of Launch on boot. Launch on boot 1.1.1. 4.7 MB . Download. Launch on boot 1.1.0. 1.8 MB . Download. Launch on boot 1.0.8. 1.8 MB . Download. All Versions. Launch on boot Alternative. Quick Boot (Reboot)

Releases ITVlab/Launch-On-Boot - GitHub

Any Shim you like and not worry about adding Canonical's key to your MOK list, although you must still add a MOK entry for rEFInd itself.Shim's built-in keys—It's possible, but not necessary, to compile Shim with a built-in public key. Its private counterpart can then be used to sign binaries. In practice, this key type is limited in utility; it's likely to be used by distribution maintainers to sign their own version of GRUB and the Linux kernels that it launches, nothing more. On the plus side, Shim's keys require little or no maintenance by users. One potential complication is that if you swap out one Shim binary for another, its built-in key may change, which means that the replacement Shim might no longer launch its follow-on boot loader or kernels linked to the first Shim. If you wanted to pay the $99 and go to the hassle of having your own Shim binary signed, with your own key embedded within it, then you could sign your own copy of rEFInd and your own kernels. In the long run, this might be appealing to users of Gentoo, which requires users to build most of their own packages from source code. For the most part, though, Shim's built-in keys aren't of use except to launch distribution-approved binaries.MOKs—Versions 0.2 and later of Shim support MOKs, which give you the ability to add your own keys to the computer. If you want to install multiple Linux distributions in Secure Boot mode, MOKs are likely to be helpful. They're vital if you want to launch kernels you compile yourself or use boot managers or boot loaders other than those provided by your distribution.All three key types are the same in form—Shim's built-in keys and MOKs are both generated using the same tools used to generate Secure Boot keys. The keys can be generated with the common openssl program, but signing EFI binaries requires either of two rarer programs: sbsign or pesign. If you use Shim with a distribution that doesn't support Secure Boot, you'll need to either sign the kernels yourself, which can be a hassle, or launch the kernels by way of a boot loader that doesn't check for signatures, such as ELILO. (Note, however, that many Linux distributions have begun to enforce a chain of trust beyond the boot loader and kernel. This means that if you try to boot using ELILO or some other tool that doesn't enforce Secure Boot, subsequent parts of the boot process may fail.)Both Secure Boot and Shim support a sort of anti-authorization key or hash. These keys or hashes identify binaries that must not be launched — typically, they're known malware, or at least they're known Location on the ESP for rEFInd to locate it. Be sure to include any support files that it needs, too.Check your refind.conf file to ensure that the showtools option is either commented out or includes mok_tool among its options.Reboot. You can try launching the boot loader you just installed, but chances are it will generate an Access Denied message. For it to work, you must launch MokManager using the tool that rEFInd presents on its second row. You can then enroll your refind_local.cer key just as you enrolled the refind.cer key.At this point you should be able to launch the binaries you've signed. Unfortunately, there can still be problems; see the upcoming section, Secure Boot Caveats, for information on them. Alternatively, you can try using PreLoader rather than Shim.Using rEFInd with PreLoaderIf you want to use Secure Boot with a distribution that doesn't come with Shim but the preceding description exhausts you, take heart: PreLoader is easier to set up and use for your situation! (Alternatively, you can use recent versions of Shim with hashes instead of with keys, in which case the PreLoader instructions apply to Shim, albeit with some user interface differences.) Unfortunately, PreLoader is still not as easy to use as not using Secure Boot at all, and it's got some drawbacks, but it may represent an acceptable middle ground. To get started, proceed as follows:Boot the computer. As with Shim, this can be a challenge; you may need to boot with Secure Boot disabled, use a Secure Boot–enabled live CD, or do the installation from Windows.Download rEFInd in binary form (the binary zip or CD-R image file). If you download the binary zip file, unzip it; if you get the CD-R image file, burn it to a CD-R and mount it.Download PreLoader from its release page or by clicking the following links. Be sure to get both the PreLoader.efi and HashTool.efi files.Copy the PreLoader.efi and HashTool.efi binaries to the directory you intend to use for rEFInd—for instance, EFI/refind on the ESP.Follow the installation instructions for rEFInd on the Installing rEFInd page; however, give rEFInd the filename loader.efi and register PreLoader.efi with the EFI by using efibootmgr in Linux or bcdedit in Windows. Be sure that rEFInd (as loader.efi), PreLoader.efi, and HashTool.efi all reside in the same directory. (If you want to use Shim with hashes, name rEFInd grubx64.efi.)Reboot. With any luck, you'll see HashTool appear with a warning message stating that it was unable to launch loader.efi and declaring that it will launch HashTool.efi. Press the Enter key to continue.HashTool should now appear. It should give you three or four options, including Enroll Hash, as shown here. Select this option You can now select the binary

Launch on Boot APK for Android Download

You want to authorize. You should first select loader.efi, since that's rEFInd. The program presents the hash (a very long number) and asks for confirmation. Be sure to select Yes. Repeat the preceding two steps for any additional binaries you might want to enroll. These include any EFI filesystem drivers you're using, any boot loaders you're launching from rEFInd (other than those that are already signed, such as Microsoft's boot loader), and possibly your Linux kernel.At the HashTool main menu, select Exit. rEFInd should launch.If you did everything right, rEFInd should now launch follow-on boot loaders and kernels, including both programs signed with the platform's Secure Boot keys and binaries that you've authorized with HashTool. If you need to authorize additional programs, you can do so from rEFInd by using the MOK utility tool icon that launches HashTool.efi from the second row of icons. (This icon should appear by default, but if you uncomment the showtools token in refind.conf, be sure that mok_tool is present among the options.)Although PreLoader is easier to set up than Shim, particularly if you need to launch programs or kernels that aren't already signed, it suffers from the problem that you must register every new program you install, including Linux kernels if you launch them directly from rEFInd. This need can be a hassle if you update your kernels frequently, and every new registration chews up a little space in your NVRAM. Nonetheless, PreLoader can be a good Secure Boot solution for many users or if you want to build a portable Linux installation that you can use on any computer with minimal fuss.Performing Secure Boot MaintenanceOnce you've configured rEFInd to use Secure Boot, it will usually keep working for a good long time; however, there are a couple of maintenance items you may want to consider. The first of these is keeping your Shim binary up-to-date. Most Linux distributions install new Shim binaries from time to time; but they usually assume that the computer uses GRUB to boot, and so will seldom update rEFInd's Shim binary automatically. (The MokManager utility must usually be updated in lockstep with the Shim binary, as well.) The second maintenance item is to replace your rEFInd MOK (or Secure Boot db key, if you took complete control of your computer's Secure Boot process), if and when that becomes necessary. The local signing keys created by the refind-install script last for ten years. Because this support was added in late 2012, some local signing have already expired, or are close to expiration. (The keys I use to sign binaries I build locally were created with 20-year lifespans, so they won't expire until December 1, 2032.) Key expiration may not be

Launch a program on boot - delayed, with no UAC.

If you’re getting a Dell Bios splash screen error on your computer, check out these troubleshooting tips.Approved: FortectSymptomsResolutionWant To Revert To The Default Dell BIOS Boot Panel With A Custom Logo?Approved: FortectResolution Step By StepHow to disable Dell splash screen in Windows 8?How to reset a custom BIOS splash screen to the Dell?Rate this productHow do I change my Dell BIOS splash screen?How do I change my BIOS logo?How do I remove Dell logo from BIOS?Approved: Fortect1. Download Fortect and install it on your computer2. Launch the program and click "Scan"3. Click "Repair" to fix any issues that are found Speed up your computer's performance now with this simple download. Symptoms Resolution Double click the corresponding executable file with the BIOS logo.Make sure the screen displays the Changebe a logo “. The following article is a step-by-step guide to replacing a Dell-specific BIOS boot screen from a smooth BIOS boot screen to a Dell standard boot screen. Want To Revert To The Default Dell BIOS Boot Panel With A Custom Logo? Approved: FortectFortect is the world's most popular and effective PC repair tool. It is trusted by millions of people to keep their systems running fast, smooth, and error-free. With its simple user interface and powerful scanning engine, Fortect quickly finds and fixes a broad range of Windows problems - from system instability and security issues to memory management and performance bottlenecks.1. Download Fortect and install it on your computer2. Launch the program and click "Scan"3. Click "Repair" to fix. or: boot on a Boot-Repair-Disk. Boot-Repair will be launched automatically. Boot-Repair will be launched automatically. USE BOOT-REPAIR: Launch Boot-Repair, then click the Recommended repair button. APKPure uses signature verification to ensure virus-free Launch on boot APK downloads for you. Old Versions of Launch on boot. Launch on boot 1.1.1. 4.7 MB . Download. Launch on boot 1.1.0. 1.8 MB . Download. Launch on boot 1.0.8. 1.8 MB . Download. All Versions. Launch on boot Alternative. Quick Boot (Reboot)

Launch Synergy on boot - Super User

Boot option is performed, the original boot order will be used again. Step 1 Launch DiskGenius Free edition on your UEFI-based computer, and click Tools menu to choose Set UEFI BIOS boot entries, as follows: Step 2 Locate the boot entry you want to set from the boot order list, select Boot this entry only next time and click Save Current boot entry button. If you cannot find the boot entry you want to configure in the boot order list, you can click Add button to add it to the list. Step 3 Click Restart now button and your computer will restart at once and boot from the specified entry. Conclusion DiskGenius Free is a useful and easy-to-use tool for users who want to manage boot entries for UEFI-based system. This free tool can be used to change boot sequence, edit, create, delete, backup and restore boot entries, specify a one-time boot entry for next restart, boot into UEFI BIOS setup from Windows. Besides, this tool can also create WinPE-based bootable USB disk, manage ESP partitions for you.

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User7593

Common on older computers (from 2013 or earlier), but they could exist on anything. Disabling Secure Boot may be the best solution to such problems.In 2020, a bug in GRUB 2, known as Boot Hole, was discovered. This bug could theoretically enable an attacker to run malicious code in the pre-boot environment. Subsequent analyses discovered several other potential security bugs in GRUB 2. Because there are so many signed GRUB 2 binaries in distribution, these flaws threatened to overrun the standard Secure Boot storage for forbidden binaries, known as the dbx. (The dbx is held in NVRAM, which is severely limited in size.) Thus, Linux distribution maintainers agreed to implement a dbx-like mechanism within Shim, and Microsoft would add earlier Shim binaries to the UEFI dbx. The upshot of this is that, if you installed rEFInd prior to these events, the Shim binary that it uses may be added to your computer's dbx by Windows updates, and rEFInd may stop working. The solution is to update the shimx64.efi file in rEFInd's directory with the latest version.As a follow-on to the preceding point, versions of Shim released since early 2021 require that signed EFI binaries launched by Shim include version information. This is known as the Secure Boot Advanced Targeting (SBAT) system, and the version information is stored in a part of the boot program binary known as .sbat. Starting with rEFInd 0.14.0, rEFInd builds an .sbat section. If you're using a version of Shim that was released prior to early 2021, you might want to consider upgrading it to a newer version. Note that the Shim that launches rEFInd is not updated automatically when a new Shim is installed; you must do this manually! If you completely control Secure Boot on your computer, or if you disable Secure Boot, then SBAT is irrelevant; it provides no benefit, and the .sbat section in rEFInd does no harm.If you launch a boot loader or other program from rEFInd that relies on the EFI's standard program-launching code, that program should take advantage of Shim and its MOKs. For instance, if you launch gummiboot (aka systemd-boot) from rEFInd (and rEFInd from Shim), gummiboot should be able to launch Shim/MOK-signed Linux kernels. In practice, this may not work with all versions of Shim, though. Shim 0.8 and later enables the binary that it launches to launch just one additional binary, not an endless stream of them. (rEFInd employs an internal workaround to this problem to do its own job.)My focus in testing rEFInd's Secure Boot capabilities has been on getting Linux kernels with EFI stub loaders to launch correctly. I've done some minimal testing with GRUB 2, though. I've also tested some self-signed binaries, such

2025-04-13
User7446

To contain bugs that could be exploited to create security problems.PreLoader and recent versions of Shim are easier to set up on a distribution that doesn't support Secure Boot because these tools don't require the use of keys; instead, you can tell them which binaries you trust and they will let you launch them. This works well on a system with boot managers, boot loaders, and kernels that seldom change. It's not a good solution for distribution maintainers, though, because it requires that users manually add binaries to the MOK's list of approved binaries when the OS is installed and every time those binaries change. Also, PreLoader relies on a helper program, HashTool, to enroll hashes. ("Hash" is Geek for "tell the computer that a binary is OK.") Unfortunately, the initial (and, as far as I know, only signed) HashTool can enroll hashes only from the partition from which it was launched, so if you want to use rEFInd to launch Linux kernels directly, it's easiest if you mount your EFI System Partition (ESP) at /boot in Linux or copy your kernels to the ESP. Another approach is to copy HashTool.efi to the partition that holds your kernel and rename it to almost anything else. rEFInd will then treat it like an OS boot loader and create a menu entry for it, enabling you to launch it as needed. Recent versions of Shim's key- and hash-management tool, MokManager, support reading keys and binaries from any partition that the EFI can read.rEFInd can communicate with the Shim system to authenticate boot loaders. If a boot loader has been signed by a valid UEFI Secure Boot key, a valid Shim key, or a valid MOK, rEFInd will launch it. rEFInd will also launch unsigned boot loaders or those with invalid signatures if Secure Boot is disabled in or unsupported by the firmware. (If that's your situation, you needn't bother reading this page.) PreLoader is designed in such a way that it requires no explicit support in rEFInd to work.My binary builds of rEFInd version 0.5.0 and later ship signed with my own keys, and I provide the public version of this key with the rEFInd package. This can help simplify setup, since you needn't generate your own keys to get rEFInd working. The rEFInd PPA for Ubuntu ships unsigned binaries, but the installation script that runs automatically when the package is installed signs the binaries with a local key as it installs them. In either case, if you lack public keys for the boot loaders that rEFInd launches, you'll need to sign your boot loaders, as described in the Managing Your MOKs section. Public keys matching most signed binaries are available, though,

2025-03-28
User6796

What is rEFInd? rEFInd is a fork of the rEFIt boot manager. Like rEFIt, rEFInd can auto-detect your installed EFI boot loaders and it presents a pretty GUI menu of boot options. rEFInd goes beyond rEFIt in that rEFInd better handles systems with many boot loaders, gives better control over the boot loader search process, and provides the ability for users to define their own boot loader entries. Features 编组 7 Support for EFI 1.x and UEFI 2.x computers 编组 3 Support for Mac and PC platforms 编组 6 Graphical and text-mode boot selector 编组 5 Auto-detection of available EFI boot loaders 编组 4 Directly launch Linux 3.3.0 and later kernels with EFI stub loader support 编组 2 Maintenance-free Linux kernel updates -- boot-time auto-detection means that no configuration file changes are needed after a kernel update Manually edit boot-time options Launch EFI programs such as an EFI shell (available from third parties) Launch OS X and Windows recovery tools Reboot into the firmware setup utility (on some UEFIs) Try before installation via a CD-R or USB flash drive image Secure Boot support (requires separate shim or PreLoader program) Includes EFI drivers for ext2/3fs, ext4fs, ReiserFS, Btrfs, HFS+, NTFS, and ISO-9660 Project Samples User Reviews & Ratings 50 Reviews ok Awesome work Really happy it worked as described. The documentation is outstanding. Very helpful in understanding what going with the Mac and SIP. BTW I was able to install from a flash drive without having take an extra step is altering SIP. And it provides boot options both bootable option (I have a backup) plus Recovery Mode. Now Linux install is nextThanks installed but don't know how to use... is perfect firmware

2025-03-28
User8922

Any Shim you like and not worry about adding Canonical's key to your MOK list, although you must still add a MOK entry for rEFInd itself.Shim's built-in keys—It's possible, but not necessary, to compile Shim with a built-in public key. Its private counterpart can then be used to sign binaries. In practice, this key type is limited in utility; it's likely to be used by distribution maintainers to sign their own version of GRUB and the Linux kernels that it launches, nothing more. On the plus side, Shim's keys require little or no maintenance by users. One potential complication is that if you swap out one Shim binary for another, its built-in key may change, which means that the replacement Shim might no longer launch its follow-on boot loader or kernels linked to the first Shim. If you wanted to pay the $99 and go to the hassle of having your own Shim binary signed, with your own key embedded within it, then you could sign your own copy of rEFInd and your own kernels. In the long run, this might be appealing to users of Gentoo, which requires users to build most of their own packages from source code. For the most part, though, Shim's built-in keys aren't of use except to launch distribution-approved binaries.MOKs—Versions 0.2 and later of Shim support MOKs, which give you the ability to add your own keys to the computer. If you want to install multiple Linux distributions in Secure Boot mode, MOKs are likely to be helpful. They're vital if you want to launch kernels you compile yourself or use boot managers or boot loaders other than those provided by your distribution.All three key types are the same in form—Shim's built-in keys and MOKs are both generated using the same tools used to generate Secure Boot keys. The keys can be generated with the common openssl program, but signing EFI binaries requires either of two rarer programs: sbsign or pesign. If you use Shim with a distribution that doesn't support Secure Boot, you'll need to either sign the kernels yourself, which can be a hassle, or launch the kernels by way of a boot loader that doesn't check for signatures, such as ELILO. (Note, however, that many Linux distributions have begun to enforce a chain of trust beyond the boot loader and kernel. This means that if you try to boot using ELILO or some other tool that doesn't enforce Secure Boot, subsequent parts of the boot process may fail.)Both Secure Boot and Shim support a sort of anti-authorization key or hash. These keys or hashes identify binaries that must not be launched — typically, they're known malware, or at least they're known

2025-04-04

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