XPost: aus.computers   
   From: none@not.here   
      
   Paul wrote:   
   > On Tue, 12/30/2025 2:31 AM, Axel wrote:   
   >> I wanted to clone my 500 Gb LM nvme disk to a 500 Gb mechanical drive, but   
   Rescuezilla reports that the target disk is too small. ??   
   >>   
   >> https://auslink.info/linux/rz.jpg   
   >>   
   >> I also get that message when trying to create an image.   
   >>   
   >> Foxclone also reports that the disk is too small.   
   >>   
   >> https://auslink.info/linux/foxclone.jpg   
   >>   
   >> How come? thanks,   
   >>   
   > First, I will post some of Pauls Demo Hardware, and put the numbers close to   
   yours.   
   > These are total disk sizes. I only own one NVMe, just for demos like this.   
   >   
   > WD5003ABYZ-011FA0                500,107,862,016  contains /dev/sdb?   
   partitions   
   > Samsung 970 EVO Plus 500GB       500,107,862,016  contains /dev/nvme0n1p?   
   partitions   
   >   
   > ******* Begin Felix details   
   >   
   > Final partition  /dev/nvme0n1p2  500,106,788,864    <<=== a partition   
   "envelope" problem???   
   > Destination drive                500,106,780,160  <<=== too small ? Need to   
   show me the details...   
      
   does a disks byte capacity depend on what brand/type it is? I had just   
   assumed all 500 Gb drives are the same size   
      
   >   
   > You'll need to gather more info, to decide what to do next.   
   >   
   >     A partition can be 1TB in size and have a 500GB file system inside. This   
   is "wasteful".   
   >   
   >     A partition can be 500GB in size and have a 1TB file system. The file   
   system "hangs   
   >     off the end" and this could/would be fatal, there could easily be damage.   
   >   
   >     A filesystem is normally "slightly smaller" than the partition size. A   
   tiny bit of white space   
   >     lives on the end of the filesystem. This is not really all that   
   wasteful. Fractional waste.   
   >     No notations are shown for this very slight difference internally for a   
   partition.   
   >   
   > These are examples of envelope problems.   
   >   
   > Both Windows and Linux make these mistakes. Linux tends to do this slightly   
   more   
   > "visibly", doing one step in partition preparation before the other, during   
   resize operations.   
   > A "failure" in the middle of an operation, leaves one of the above   
   "situations".   
   > The Gparted details area, shows separate steps for partition handling.   
   >   
   > There are typically no tools that say "I notice you have an envelope   
   problem, let   
   > me fix this for you". Sometimes, you may get an error notation on the   
   gparted screen,   
   > that it knows something is amiss.   
   >   
   > *******   
   >   
   > This just shows you how you can get a text printout of   
   > your storage devices and precise byte values for the items.   
   >   
   >     sudo apt install disktype   
   >   
   >     sudo disktype /dev/sda       # dumps some info for my SATA drive   
   >     sudo disktype /dev/nvme0n1   # dumps some info for my NVMe drive   
   >   
   > bullwinkle@FLOTILLA:~$ sudo disktype /dev/nvme0n1   
   >   
   > --- /dev/nvme0n1   
   > Block device, size 465.8 GiB (500107862016 bytes)              <=== total   
   drive size here   
   > DOS/MBR partition map   
   > Partition 1: 2.000 TiB (2199023255040 bytes, 4294967295 sectors from 1)   
   >    Type 0xEE (EFI GPT protective)   
   > GPT partition map, 128 entries   
   >    Disk size 465.8 GiB (500107862016 bytes, 976773168 sectors)   
   >    Disk GUID FAA8052D-D088-9446-A6E1-B15544E4D408   
   > Partition 1: 100 MiB (104857600 bytes, 204800 sectors from 2048)   
   >    Type EFI System (FAT) (GUID 28732AC1-1FF8-D211-BA4B-00A0C93EC93B)   
   >    Partition Name "EFI system partition"   
   >    Partition GUID A78EC35F-0313-584D-8131-E7F305AB8CBA   
   >    FAT32 file system (hints score 4 of 5)   
   >      Volume size 96 MiB (100663296 bytes, 98304 clusters of 1 KiB)   
   > Partition 2: 16 MiB (16777216 bytes, 32768 sectors from 206848)   
   >    Type MS Reserved (GUID 16E3C9E3-5C0B-B84D-817D-F92DF00215AE)   
   >    Partition Name "Microsoft reserved partition"   
   >    Partition GUID 424FE61B-9BF9-7A4C-A4BD-B9427F655534   
   >    Blank disk/medium   
   > Partition 3: 82.08 GiB (88128618496 bytes, 172126208 sectors from 239616)   
   >    Type Basic Data (GUID A2A0D0EB-E5B9-3344-87C0-68B6B72699C7)   
   >    Partition Name "Basic data partition"   
   >    Partition GUID 80DBB40E-068F-5647-AB85-81AF5354DFF5   
   >    NTFS file system   
   >      Volume size 82.08 GiB (88128617984 bytes, 172126207 sectors)   
   > Partition 4: 835 MiB (875560960 bytes, 1710080 sectors from 172365824)   
   >    Type Unknown (GUID A4BB94DE-D106-404D-A16A-BFD50179D6AC)   
   >    Partition Name ""   
   >    Partition GUID C8829DB7-BE7B-4148-90DF-ADC92FE39548   
   >    NTFS file system   
   >      Volume size 835.0 MiB (875560448 bytes, 1710079 sectors)   
   > Partition 5: 977 MiB (1024458752 bytes, 2000896 sectors from 174077952)   
   >    Type Linux Swap (GUID 6DFD5706-ABA4-C443-84E5-0933C84B4F4F)              
   <=== Paul notices some   
   >    Partition Name "   
                                                              naughty activity   
   needs   
   >    Partition GUID 1AA2EE74-36EB-B24D-9656-214ECF74D5F   
                            to be fixed :-/ Anyway...   
   >    Linux swap, version 2, subversion 1, 4 KiB pages, little-en   
   ian             It should be like   
   >      Swap size 977.0 MiB (1024450560 bytes, 250110 pages of 4    
   iB)             Partition 4.   
   > Partition 6: unused   
   >   
   > bullwinkle@FLOTILLA:~$ sudo disktype /dev/sdb   
   >   
   > --- /dev/sdb   
   > Block device, size 465.8 GiB (500107862016 bytes)              <=== total   
   drive size here   
   > DOS/MBR partition map   
   > Partition 1: 465.8 GiB (500107861504 bytes, 976773167 sectors from 1)   
   >    Type 0xEE (EFI GPT protective)   
   > GPT partition map, 128 entries   
   >    Disk size 465.8 GiB (500107862016 bytes, 976773168 sectors)   
   >    Disk GUID 9248B517-FDF8-AF4A-94EF-01DA6DC27F59   
   > Partition 1: 476 MiB (499122176 bytes, 974848 sectors from 2048)   
   >    Type EFI System (FAT) (GUID 28732AC1-1FF8-D211-BA4B-00A0C93EC93B)   
   >    Partition Name ""   
   >    Partition GUID 6A077AE2-32EA-394A-91CA-4C9C43DB461A   
   >    GRUB boot loader, unknown compat version 0   
   >    FAT32 file system (hints score 5 of 5)   
   >      Volume size 475.1 MiB (498130944 bytes, 121614 clusters of 4 KiB)   
   > Partition 2: 1.907 GiB (2047868928 bytes, 3999744 sectors from 976896)  <===   
   an intentional swap...   
   >    Type Linux Swap (GUID 6DFD5706-ABA4-C443-84E5-0933C84B4F4F   
                   No surprise here.   
   >    Partition Name ""   
   >    Partition GUID 62972AB2-3976-1145-8A29-9B7EF56AD1AB   
   >    Linux swap, version 2, subversion 1, 4 KiB pages, little-endian   
   >      Swap size 1.907 GiB (2047860736 bytes, 499966 pages of 4 KiB)   
   > Partition 3: 190.7 GiB (204800524288 bytes, 400001024 sectors from 4976640)   
   >    Type Unknown (GUID AF3DC60F-8384-7247-8E79-3D69D8477DE4)   
   >    Partition Name ""   
   >    Partition GUID DF0F1722-DCCA-A340-A42E-95906218245D   
   >    Ext4 file system   
   >      UUID 3FD653C0-C199-4033-A4FD-2BB25E6EE55B (DCE, v4)   
   >      Last mounted at "/"   
   >      Volume size 190.7 GiB (204800524288 bytes, 50000128 blocks of 4 KiB)   
   > Partition 4: 181.6 GiB (194977464320 bytes, 380815360 sectors from 404977664)   
   >    Type Unknown (GUID AF3DC60F-8384-7247-8E79-3D69D8477DE4)   
   >    Partition Name "DEVUAN"   
      
   [continued in next message]   
      
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