I'm having trouble getting an Ubuntu ISO to boot with a persistence file:
My Environment:![[Image: tDq3Sjz.png]](https://i.imgur.com/tDq3Sjz.png)
Steps:
Following the instructions posted here (https://forums.ventoy.net/showthread.php...202#pid202), I ran vt_dump_persistence at the ventoy grub shell. Screenshot below:
![[Image: BXsLoBg.png]](https://i.imgur.com/BXsLoBg.png)
My Environment:
- Ventoy version 1.0.55
- Host OS: Windows 10 Pro (21H2)
- 256 GB USB key - Partition 1 formatted as exFAT.
- The Ubuntu 21.10 ISO will allow me to retain files between reboots using the persistence behavior
- The Ubuntu 21.10 ISO stops on boot with an error stating "mounting /dev/disk/by-label/casper-rw on /cow failed: Input/output error"
Steps:
- Create a folder called "persistence" under "ventoy" in the USB key.
- Download the persistence releases file "Ventoy persistence backend image files 5.0" from https://github.com/ventoy/backend/releases
- Expand the "persistence_ext4_1GB_casper-rw.dat.7z" from the release file.
- Rename the folder/file to "ubuntu2110.dat"
- Copy the renamed folder/file to the path [Drive Letter]:/ventoy/persistence/
- Verify that your ventoy.json has the following content (which is verified valid json):
Code:
{
"control": [
{ "VTOY_DEFAULT_MENU_MODE": "1" },
{ "VTOY_FILT_DOT_UNDERSCORE_FILE": "1" },
{ "VTOY_TREE_VIEW_MENU_STYLE": "1" },
{ "VTOY_MAX_SEARCH_LEVEL": "max" },
{ "VTOY_FILE_FLT_ISO": "0" },
{ "VTOY_FILE_FLT_WIM": "0" },
{ "VTOY_FILE_FLT_EFI": "0" },
{ "VTOY_FILE_FLT_IMG": "0" },
{ "VTOY_FILE_FLT_VHD": "0" },
{ "VTOY_FILE_FLT_VTOY": "0" },
{ "VTOY_DEFAULT_KBD_LAYOUT": "QWERTY_USA" }
],
"theme": {
"file": "/ventoy/theme/Tela/theme.txt",
"display_mode": "GUI",
"gfxmode": "1920x1080",
"ventoy_left": "0%",
"ventoy_top": "0",
"ventoy_color": "#f2f2f2",
"fonts": [
"/ventoy/theme/Tela/dejavu_32.pf2",
"/ventoy/theme/Tela/dejavu_sans_12.pf2",
"/ventoy/theme/Tela/dejavu_sans_14.pf2",
"/ventoy/theme/Tela/dejavu_sans_16.pf2",
"/ventoy/theme/Tela/dejavu_sans_24.pf2",
"/ventoy/theme/Tela/dejavu_sans_48.pf2",
"/ventoy/theme/Tela/terminus-12.pf2",
"/ventoy/theme/Tela/terminus-14.pf2",
"/ventoy/theme/Tela/terminus-16.pf2",
"/ventoy/theme/Tela/terminus-18.pf2"
]
},
"menu_class": [
{
"dir": "/Antivirus",
"class": "antivirus"
},
{
"key": "[UEFI]_Malwarebytes_Antimalware",
"class": "malwarebytes"
},
{
"key": "eset_sysrescue",
"class": "eset"
},
{
"key": "krd",
"class": "krd"
},
{
"dir": "/VHD",
"class": "vhd"
},
{
"key": "[UEFI]_MediCat_VHD_",
"class": "win10vhd"
},
{
"dir": "/Backup_and_Restore",
"class": "backup"
},
{
"key": "[UEFI]_Acronis_Cyber_Backup_",
"class": "acronisbackup"
},
{
"key": "[UEFI]_Acronis_True_Image_",
"class": "acronistrueimage"
},
{
"key": "AcronisBootablePEMedia",
"class": "acronistrueimage"
},
{
"key": "[UEFI]_AOMEI_Backupper_",
"class": "aomeibackupper"
},
{
"key": "[UEFI]_EaseUS_Data_Recovery_Wizard_",
"class": "easeusdatarecovery"
},
{
"key": "[UEFI]_EaseUS_Todo_Backup_",
"class": "easeustodobackup"
},
{
"key": "[UEFI]_Elcomsoft_System_Recovery_",
"class": "elcomsoft"
},
{
"key": "[UEFI]_Macrium_Reflect_",
"class": "macriumreflect"
},
{
"key": "[UEFI]_MiniTool_Power_Data_Recovery_",
"class": "minitoolpowerdatarecovery"
},
{
"key": "[UEFI]_MiniTool_ShadowMaker_Pro_Ultimate_",
"class": "minitoolshadowmaker"
},
{
"key": "[UEFI]_O&O_BlueCon_",
"class": "O&O"
},
{
"key": "[UEFI]_rescuezilla-",
"class": "rescuezilla"
},
{
"key": "[UEFI]_Symantec_Ghost_",
"class": "ghost"
},
{
"dir": "/Boot_an_Operating_System",
"class": "systemrescue"
},
{
"key": "[UEFI]_Active@_",
"class": "active"
},
{
"key": "[UEFI]_Mini_Windows_10",
"class": "windows10"
},
{
"key": "[UEFI]_SystemRescue_",
"class": "systemrescue"
},
{
"dir": "/Boot_Repair",
"class": "bootrepair"
},
{
"key": "[BIOS]_BootIt_Bare_Metal_",
"class": "bootitbaremetal"
},
{
"key": "[BIOS]_Boot-Repair-Disk_",
"class": "bootrepairdisk"
},
{
"key": "[UEFI]_EasyUEFI_Enterprise_",
"class": "easyuefi"
},
{
"key": "[UEFI]_rescatux-",
"class": "rescatux"
},
{
"key": "[UEFI]_super_grub2-",
"class": "linux"
},
{
"dir": "/Diagnostic_Tools",
"class": "diagnostics"
},
{
"key": "[BIOS]_HDAT2_",
"class": "hdat2"
},
{
"key": "[BIOS]_MemTest86+_",
"class": "memtest86+"
},
{
"key": "[BIOS]_Spinrite",
"class": "spinrite"
},
{
"key": "[BIOS]_Ultimate_Boot_CD_",
"class": "ubcd"
},
{
"key": "[UEFI]_MemTest86_",
"class": "memtest86"
},
{
"dir": "/Partition_Tools",
"class": "partitions"
},
{
"key": "[UEFI]_Acronis_Disk_Director_",
"class": "acronisdiskdirector"
},
{
"key": "[UEFI]_AOMEI_Partition_Assistant_",
"class": "aomeipartitionassistant"
},
{
"key": "[UEFI]_DiskGenius_",
"class": "diskgenius"
},
{
"key": "[UEFI]_EaseUS_Partition_Master_",
"class": "easeuspartitionmaster"
},
{
"key": "[UEFI]_MiniTool_Partition_Wizard_",
"class": "minitoolpartitionwizard"
},
{
"key": "[UEFI]_NIUBI_Partition_Editor_",
"class": "niubi"
},
{
"key": "[UEFI]_Paragon_Hard_Disk_Manager_",
"class": "paragonharddiskmanager"
},
{
"key": "[UEFI]_Parted_Magic_",
"class": "partedmagic"
},
{
"key": "[UEFI]_ShredOS-",
"class": "shredos"
},
{
"dir": "/Password_Removal",
"class": "passwords"
},
{
"key": "[UEFI]_Jayro's_Lockpick",
"class": "lockpick"
},
{
"dir": "/OSimages",
"class": "os"
},
{
"dir": "/OSimages/Linux",
"class": "linux"
},
{
"dir": "/Windows_Recovery",
"class": "recovery"
},
{
"key": "[UEFI]_Windows_8",
"class": "windows8"
},
{
"key": "ubuntu",
"class": "ubuntu"
},
{
"key": "debian",
"class": "debian"
},
{
"key": "proxmox",
"class": "proxmox"
},
{
"key": "[UEFI]_Windows_10",
"class": "windows10"
}
],
"menu_alias": [
{
"dir": "/OSimages/Linux",
"alias": "Linux ISO"
},
{
"image": "/OSimages/Linux/debian-11.1.0-amd64-DVD-1.iso",
"alias": "Debian Bullseye"
},
{
"image": "/OSimages/Linux/ubuntu-20.04.1-live-server-amd64.iso",
"alias": "Ubuntu 20.04 LTS (Server)"
},
{
"image": "/OSimages/Linux/proxmox-ve_7.0-2.iso",
"alias": "Proxmox 7"
},
{
"image": "/OSimages/Linux/debian-live-11.1.0-amd64-xfce.iso",
"alias": "Debian Bullseye Desktop (XFCE)"
},
{
"image": "/OSimages/Linux/ubuntu-20.04.1-desktop-amd64.iso",
"alias": "Ubuntu 20.04 (Desktop)"
},
{
"image": "/OSimages/Linux/debian-10.11.0-amd64-DVD-1.iso",
"alias": "Debian Buster"
},
{
"image": "/OSimages/Linux/proxmox-ve_6.3-1.iso",
"alias": "Proxmox 6"
},
{
"image": "/Boot_an_Operating_System/ubuntu-21.10-desktop-amd64.iso",
"alias": "Ubuntu 21.10 (Desktop w. Persistence)"
},
{
"image": "/Backup_and_Restore/AcronisBootablePEMedia.iso",
"alias": "Acronis Rescue Media (WinPE)"
},
{
"image": "/Antivirus/eset_sysrescue_live_enu.iso",
"alias": "ESET SysRescue Live"
},
{
"image": "/Antivirus/krd.iso",
"alias": "Kaspersky Rescue Disk Free"
},
{
"image": "/VHD/[UEFI]_MediCat_VHD_&DW.vhd",
"alias": "MediCat VHD"
},
{
"image": "/Antivirus/[UEFI]_Malwarebytes_Antimalware_v21.06.wim",
"alias": "[UEFI] Malwarebytes Bootable"
},
{
"image": "/Backup_and_Restore/[UEFI]_Acronis_Cyber_Backup_v12.5_Build_16428.iso",
"alias": "[UEFI] Acronis Cyber Backup v12.5 Build 16428"
},
{
"image": "/Backup_and_Restore/[UEFI]_Acronis_True_Image_v2021_Build_39216.iso",
"alias": "[UEFI] Acronis True Image v2021 Build 39216"
},
{
"image": "/Backup_and_Restore/[UEFI]_AOMEI_Backupper_v6.5.0.wim",
"alias": "[UEFI] AOMEI Backupper v6.5.0"
},
{
"image": "/Backup_and_Restore/[UEFI]_EaseUS_Data_Recovery_Wizard_v14.0.wim",
"alias": "[UEFI] EaseUS Data Recovery Wizard v14.0"
},
{
"image": "/Backup_and_Restore/[UEFI]_EaseUS_Todo_Backup_v13.5.0.wim",
"alias": "[UEFI] EaseUS Todo Backup v13.5.0"
},
{
"image": "/Backup_and_Restore/[UEFI]_Elcomsoft_System_Recovery_v7.2.628.iso",
"alias": "[UEFI] Elcomsoft System Recovery v7.2.628"
},
{
"image": "/Backup_and_Restore/[UEFI]_Macrium_Reflect_v8.0.5994.wim",
"alias": "[UEFI] Macrium Reflect v8.0.5994"
},
{
"image": "/Backup_and_Restore/[UEFI]_MiniTool_Power_Data_Recovery_v9.2.wim",
"alias": "[UEFI] MiniTool Power Data Recovery v9.2"
},
{
"image": "/Backup_and_Restore/[UEFI]_MiniTool_ShadowMaker_Pro_Ultimate_v3.6.wim",
"alias": "[UEFI] MiniTool ShadowMaker v3.6"
},
{
"image": "/Backup_and_Restore/[UEFI]_rescuezilla-2.2-64bit.iso",
"alias": "[UEFI] Rescuezilla v2.2"
},
{
"image": "/Backup_and_Restore/[UEFI]_Symantec_Ghost_x64_v12.0.0.11331.wim",
"alias": "[UEFI] Symantec Ghost v12.0.0.11331"
},
{
"image": "/Boot_an_Operating_System/[UEFI]_Active@_Data_Studio_v17.0.0.iso",
"alias": "[UEFI] Active@ Data Studio v17.0.0"
},
{
"image": "/Boot_an_Operating_System/[UEFI]_Mini_Windows_10.wim",
"alias": "[UEFI] Mini Windows 10"
},
{
"image": "/Boot_an_Operating_System/[UEFI]_O&O_BlueCon_v18.0.8088.wim",
"alias": "[UEFI] O&O BlueCon v18.0.8088"
},
{
"image": "/Boot_an_Operating_System/[UEFI]_systemrescue-8.03-x64.iso",
"alias": "[UEFI] SystemRescue v8.03"
},
{
"image": "/Boot_Repair/[BIOS]_Boot-Repair-Disk_v2020-6-13.iso",
"alias": "[BIOS] Boot-Repair-Disk v2020.6.13"
},
{
"image": "/Boot_Repair/[UEFI]_EasyUEFI_v4.6.2.wim",
"alias": "[UEFI] EasyUEFI v4.6.2"
},
{
"image": "/Boot_Repair/[UEFI]_rescatux-0.73.iso",
"alias": "[UEFI] Rescatux v0.73"
},
{
"image": "/Boot_Repair/[BIOS]_BootIt_Bare_Metal_v1.70.iso",
"alias": "[BIOS] BootIt Bare Metal v1.70"
},
{
"image": "/Boot_Repair/[UEFI]_super_grub2-2.04s2-beta2-x86_64_efi-.efi",
"alias": "[UEFI] Super Grub2 Disk v2.04 S2 Beta 2 (EFI Version)"
},
{
"image": "/Boot_Repair/[UEFI]_super_grub2-2.04s2-beta2-x86_64_efi-.iso",
"alias": "[UEFI] Super Grub2 Disk v2.04 S2 Beta 2 (ISO Version)"
},
{
"image": "/Diagnostic_Tools/[BIOS]_HDAT2_v7.2.iso",
"alias": "[BIOS] HDAT2 v7.2"
},
{
"image": "/Diagnostic_Tools/[BIOS]_MemTest86+_v5.31_Beta.iso",
"alias": "[BIOS] MemTest86+ v5.31 Beta"
},
{
"image": "/Diagnostic_Tools/[BIOS]_Spinrite.iso",
"alias": "[BIOS] Spinrite v6.0"
},
{
"image": "/Diagnostic_Tools/[BIOS]_Ultimate_Boot_CD_539.iso",
"alias": "[BIOS] Ultimate Boot CD v5.3.9"
},
{
"image": "/Diagnostic_Tools/[UEFI]_MemTest86_v9.0._ARM64.efi",
"alias": "[UEFI] PassMark MemTest86 v9.0 [ARM64/AARCH64]"
},
{
"image": "/Diagnostic_Tools/[UEFI]_MemTest86_v9.0.efi",
"alias": "[UEFI] PassMark MemTest86 v9.0 [AMD64]"
},
{
"image": "/Partition_Tools/[UEFI]_Acronis_Disk_Director_v12.5_Build_163.wim",
"alias": "[UEFI] Acronis Disk Director v12.5"
},
{
"image": "/Partition_Tools/[UEFI]_Active@_UNERASER_v16.0.2.wim",
"alias": "[UEFI] Active@ UNERASER v16.0.2"
},
{
"image": "/Partition_Tools/[UEFI]_AOMEI_Partition_Assistant_v9.2.1.wim",
"alias": "[UEFI] AOMEI Partition Assistant v9.2.1"
},
{
"image": "/Partition_Tools/[UEFI]_DiskGenius_5.4.2.2278.wim",
"alias": "[UEFI] DiskGenius v5.4.2.2278"
},
{
"image": "/Partition_Tools/[UEFI]_EaseUS_Partition_Master_15.8.wim",
"alias": "[UEFI] EaseUS Partition Master 15.8"
},
{
"image": "/Partition_Tools/[UEFI]_MiniTool_Partition_Wizard_12.3.wim",
"alias": "[UEFI] MiniTool Partition Wizard v12.3"
},
{
"image": "/Partition_Tools/[UEFI]_NIUBI_Partition_Editor_v7.4.1.wim",
"alias": "[UEFI] NIUBI Partition Editor v7.4.1"
},
{
"image": "/Partition_Tools/[UEFI]_Paragon_Hard_Disk_Manager_v17.13.1.wim",
"alias": "[UEFI] Paragon Hard Disk Manager v17.13.1"
},
{
"image": "/Partition_Tools/[UEFI]_Parted_Magic_2021_05_12_0.iso",
"alias": "[UEFI] Parted Magic v2021.05.12"
},
{
"image": "/Partition_Tools/[UEFI]_ShredOS-2020.05.img",
"alias": "[UEFI] ShredOS (Pass: medicat)"
},
{
"image": "/Password_Removal/[UEFI]_Jayro's_Lockpick.wim",
"alias": "[UEFI] Jayro's Lockpick"
},
{
"image": "/Windows_Recovery/[UEFI]_Windows_8_Recovery.wim",
"alias": "[UEFI] Windows 8 Recovery +MS DaRT"
},
{
"image": "/Windows_Recovery/[UEFI]_Windows_10_Recovery.wim",
"alias": "[UEFI] Windows 10 Recovery +MS DaRT"
},
{
"dir": "/Antivirus",
"alias": "Antivirus -->"
},
{
"dir": "/Backup_and_Restore",
"alias": "Backup and Restore -->"
},
{
"dir": "/Boot_an_Operating_System",
"alias": "Boot an Operating System -->"
},
{
"dir": "/Boot_Repair",
"alias": "Boot Repair -->"
},
{
"dir": "/Diagnostic_Tools",
"alias": "Diagnostic Tools -->"
},
{
"dir": "/OSimages",
"alias": "Install OS -->"
},
{
"dir": "/Partition_Tools",
"alias": "Partition Tools -->"
},
{
"dir": "/Password_Removal",
"alias": "Password Removal -->"
},
{
"dir": "/VHD",
"alias": "VHDs -->"
},
{
"dir": "/Windows_Recovery",
"alias": "Windows Recovery -->"
}
],
"auto_memdisk": [
"/Diagnostic_Tools/[BIOS]_HDAT2_7.2.iso",
"/Diagnostic_Tools/[BIOS]_Spinrite.iso",
"/Diagnostic_Tools/[BIOS]_MemTest86+_v5.31_Beta.iso"
],
"persistence": [
{
"image": "/Boot_an_Operating_System/ubuntu-21.10-desktop-amd64.iso",
"backend": [
"/ventoy/persistence/ubuntu2110.dat/ubuntu2110.dat"
]
}
],
"auto_install": [
{
"image": "/OSimages/Linux/debian-11.1.0-amd64-DVD-1.iso",
"template": [
"/ventoy/templates/debian11-generic-preseed.cfg",
"/ventoy/templates/debian11-test-preseed.cfg"
],
"timeout": 10
}
]
}- Verify that the persistence file on the USB key is indeed an ext4 file with the "casper-rw" label:
Code:
$ file /j/ventoy/persistence/ubuntu2110.dat/ubuntu2110.dat
/j/ventoy/persistence/ubuntu2110.dat/ubuntu2110.dat: Linux rev 1.0 ext4 filesystem data, UUID=62fcf2b5-ffff9ac2-4a00-ffff9bac-78e61bb05976, volume name "casper-rw" (extents) (64bit) (large files) (huge files)- Boot the ventoy USB key and select the ISO "/Boot_an_Operating_System/ubuntu-21.10-desktop-amd64.iso"
Following the instructions posted here (https://forums.ventoy.net/showthread.php...202#pid202), I ran vt_dump_persistence at the ventoy grub shell. Screenshot below: