Cannot download Kernelcache at RPC

[Yankeelucas]

ios 17.7.8 ipad6(2018) cannot download kernel cache

the server said that it could not open the zip
file and said it's a arrange quest

[Yankeelucas]

log:

lara started: 2026-04-11 17:13:34

livecontainer detected: nah

(utils) getprocsize()返回0x0, 默认0x740。

(utils) TASK_TNEXT偏移: 0x58

(utils) THREAD_MUPCB偏移: 0xf8

(utils) PROC_PID偏移: 0x28

(utils) PROC结构大小: 0x740

偏移已初始化下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 错误: 打开zip文件失败! Server does not support range requests!

kernelcache下载失败

下载kernelcache -> /var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache

libgrabkernel2: 已找到固件URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/082-53165/70E3BE3A-3C25-43A0-A8D9-8271C1AA802B/iPad_64bit_TouchID_ASTC_17.7.8_21H440_Restore.ipsw (OTA: no)

libgrabkernel2: 正在下载BuildManifest.plist...

libgrabkernel2: 正在下载kernelcache.release.ipad7b到/var/mobile/Containers/Data/Application/D4B69516-12E4-4E5D-A698-8DDD30B535A1/Documents/kernelcache...

libgrabkernel2: 已下载kernelcache!

内核: Darwin Kernel Version 23.6.0: Thu Apr 24 20:24:42 PDT 2025; root:xnu-10063.142.1.703.7~1/RELEASE_ARM64_T8010

kernbase: 0xfffffff007004000

kernentry: 0xfffffff0071d04e8

解析关键内核符号失败

[SudoPigeon223]

I have a similar issue with my 2017 iPad Pro (10.5 inch) on iPadOS 17.7.10:

lara started: 2026-04-11 06:00:54


livecontainer detected: nah

(utils) getprocsize() returned 0x0. defaulting to 0x740.

(utils) TASK_TNEXT_OFFSET: 0x58

(utils) THREAD_MUPCB_OFFSET: 0xf8

(utils) PROC_PID_OFFSET: 0x28

(utils) PROC_STRUCT_SIZE: 0x740

initialized offsetsdownloading kernelcache → /var/mobile/Containers/Data/Application/084D5CFF-3386-4549-8F6E-F56DB0F2DEDE/Documents/kernelcache

libgrabkernel2: Found firmware URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/093-21857/D64B129B-269D-42A5-9637-DE16D6843DA1/iPad_Pro_HFR_17.7.10_21H450_Restore.ipsw (OTA: no)

libgrabkernel2: Downloading BuildManifest.plist...

libgrabkernel2: Downloading kernelcache.release.ipad7 to /var/mobile/Containers/Data/Application/084D5CFF-3386-4549-8F6E-F56DB0F2DEDE/Documents/kernelcache...

libgrabkernel2: Downloaded kernelcache!

kernel: Darwin Kernel Version 23.6.0: Fri Jul 11 17:39:39 PDT 2025; root:xnu-10063.142.1.703.8~1/RELEASE_ARM64_T8010

kernbase: 0xfffffff007004000

kernentry: 0xfffffff0071d04e8

failed to resolve important kernel symbols

[Yankeelucas]

I have a similar issue with my 2017 iPad Pro (10.5 inch) on iPadOS 17.7.10:

lara started: 2026-04-11 06:00:54


livecontainer detected: nah

(utils) getprocsize() returned 0x0. defaulting to 0x740.

(utils) TASK_TNEXT_OFFSET: 0x58

(utils) THREAD_MUPCB_OFFSET: 0xf8

(utils) PROC_PID_OFFSET: 0x28

(utils) PROC_STRUCT_SIZE: 0x740

initialized offsetsdownloading kernelcache → /var/mobile/Containers/Data/Application/084D5CFF-3386-4549-8F6E-F56DB0F2DEDE/Documents/kernelcache

libgrabkernel2: Found firmware URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/093-21857/D64B129B-269D-42A5-9637-DE16D6843DA1/iPad_Pro_HFR_17.7.10_21H450_Restore.ipsw (OTA: no)

libgrabkernel2: Downloading BuildManifest.plist...

libgrabkernel2: Downloading kernelcache.release.ipad7 to /var/mobile/Containers/Data/Application/084D5CFF-3386-4549-8F6E-F56DB0F2DEDE/Documents/kernelcache...

libgrabkernel2: Downloaded kernelcache!

kernel: Darwin Kernel Version 23.6.0: Fri Jul 11 17:39:39 PDT 2025; root:xnu-10063.142.1.703.8~1/RELEASE_ARM64_T8010

kernbase: 0xfffffff007004000

kernentry: 0xfffffff0071d04e8

failed to resolve important kernel symbols

But most of times it says it could not open the zip file.The server has some problems that could not fix.I'm in Shanghai RPC.Maybe it is the network problems,need vpn to solve it.

[Yankeelucas]

I have a similar issue with my 2017 iPad Pro (10.5 inch) on iPadOS 17.7.10:

lara started: 2026-04-11 06:00:54


livecontainer detected: nah

(utils) getprocsize() returned 0x0. defaulting to 0x740.

(utils) TASK_TNEXT_OFFSET: 0x58

(utils) THREAD_MUPCB_OFFSET: 0xf8

(utils) PROC_PID_OFFSET: 0x28

(utils) PROC_STRUCT_SIZE: 0x740

initialized offsetsdownloading kernelcache → /var/mobile/Containers/Data/Application/084D5CFF-3386-4549-8F6E-F56DB0F2DEDE/Documents/kernelcache

libgrabkernel2: Found firmware URL: https://updates.cdn-apple.com/2025SpringFCS/fullrestores/093-21857/D64B129B-269D-42A5-9637-DE16D6843DA1/iPad_Pro_HFR_17.7.10_21H450_Restore.ipsw (OTA: no)

libgrabkernel2: Downloading BuildManifest.plist...

libgrabkernel2: Downloading kernelcache.release.ipad7 to /var/mobile/Containers/Data/Application/084D5CFF-3386-4549-8F6E-F56DB0F2DEDE/Documents/kernelcache...

libgrabkernel2: Downloaded kernelcache!

kernel: Darwin Kernel Version 23.6.0: Fri Jul 11 17:39:39 PDT 2025; root:xnu-10063.142.1.703.8~1/RELEASE_ARM64_T8010

kernbase: 0xfffffff007004000

kernentry: 0xfffffff0071d04e8

failed to resolve important kernel symbols

But most of times it says it could not open the zip file.The server has some problems that could not fix.I'm in Shanghai RPC.Maybe it is the network problems,need vpn to solve it.

Error:failed to open the zip file!Server does not support range requests!

[GZ-920]

lara kernelcache 下载失败解决方法

如果 lara 一直提示 kernelcache 下载失败，需要手动导入。首先访问 ipsw.dev，找到你的设备型号和 iOS build 号对应的 IPSW 文件下载（iPad Air M3 对应 iPad15,3 或 iPad15,5）。下载后以压缩包形式打开，找到其中名为 kernelcache.release.ipadXX 的文件，重命名为 kernelcache（无后缀）。然后用Filza，将文件放入 lara 的沙盒目录：/var/mobile/Containers/Data/Application/[lara的UUID]/Documents/。UUID 可以从 lara 的日志里找到。放好后重新打开 lara 点击下载即可识别。

[Yankeelucas]

我的iPad6 iOS17.7.8暂时filza好像还没有办法使用。darksword和coruna漏洞目前不支持iPad。filza打开显示没权限

…

________________________________ 发件人: GZ-920 ***@***.***> 发送时间: Tuesday, April 14, 2026 10:57:54 PM 收件人: rooootdev/lara ***@***.***> 抄送: Yankeelucas ***@***.***>; Author ***@***.***> 主题: Re: [rooootdev/lara] Cannot download Kernelcache at RPC (Issue #75) [https://avatars.githubusercontent.com/u/175796107?s=20&v=4]GZ-920 left a comment (rooootdev/lara#75)<#75 (comment)> lara kernelcache 下载失败解决方法 如果 lara 一直提示 kernelcache 下载失败，需要手动导入。首先访问 ipsw.dev，找到你的设备型号和 iOS build 号对应的 IPSW 文件下载（iPad Air M3 对应 iPad15,3 或 iPad15,5）。下载后以压缩包形式打开，找到其中名为 kernelcache.release.ipadXX 的文件，重命名为 kernelcache（无后缀）。然后用Filza，将文件放入 lara 的沙盒目录：/var/mobile/Containers/Data/Application/[lara的UUID]/Documents/。UUID 可以从 lara 的日志里找到。放好后重新打开 lara 点击下载即可识别。 ― Reply to this email directly, view it on GitHub<#75 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/B25VW4M6B7PUPGNG4MLKZ634VZGXFAVCNFSM6AAAAACXU2KG4SVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DENBUHEYDONRVGY>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[tiziodied]

a guide for a fix has been posted on the readme