GPT fdisk Activity
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Activity for GPT fdisk
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Shannon Crooks modified a comment on discussion Open Discussion
That’s a very detailed catch — thanks for sharing the repro steps. I’ve run into similar quirks where different versions of tools handle “0” parsing inconsistently, and it definitely causes confusion. The stricter handling in sgdisk 1.0.10 looks like it aligns with the updated docs, but yes, it feels less intuitive compared to 1.0.9. Hopefully the maintainers clarify or restore the older behavior for consistency. On a totally different but practical note, for anyone here who’s also juggling workstation...
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That’s a very detailed catch — thanks for sharing the repro steps. I’ve run into similar quirks where different versions of tools handle “0” parsing inconsistently, and it definitely causes confusion. The stricter handling in sgdisk 1.0.10 looks like it aligns with the updated docs, but yes, it feels less intuitive compared to 1.0.9. Hopefully the maintainers clarify or restore the older behavior for consistency. On a totally different but practical note, for anyone here who’s also juggling workstation...
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Robert B. Calhoun modified a comment on discussion Open Discussion
Documentation for GPT 1.0.10 sgdisk --new=partnum:start:end states "a start or end value of 0 specifies the default value, which is the start of the largest available block for the start sector and the end of the same block for the end sector." In sgdisk 1.0.9, this zero could be given with units, e.g. "+0M", e.g. sgdisk --new=7:+0M:+32M "/dev/${DEVICE}" In sgdisk 1.0.10 (on arm64 or x86-64 linux), presence of the unit breaks the zero-parsing, and sgdisk tries to start the new partition at the end...
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Documentation for GPT 1.0.10 sgdisk --new=partnum:start:end states "a start or end value of 0 specifies the default value, which is the start of the largest available block for the start sector and the end of the same block for the end sector." In sgdisk 1.0.9, this zero could be given with units, e.g. "+0M", e.g. sgdisk --new=7:+0M:+32M "/dev/${DEVICE}" In sgdisk 1.0.10 (on arm64 or x86-64 linux), presence of the unit breaks the zero-parsing, and sgdisk tries to start the new partition at the end...
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jpz4085 created merge request #37 on Code
Fixes for UEFI version of gdisk
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Roderick W. Smith posted a comment on discussion Open Discussion
That sort of conversion is certainly possible, but would add code complexity that I'd prefer to avoid. That said, I'm willing to consider a patch/merge request; but at the moment I'm pretty busy with other matters, so I don't have much time to devote to this issue.
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Mitchell Dzurick posted a comment on discussion Open Discussion
Hello, Regarding the change to allow decimal formatting https://sourceforge.net/p/gptfdisk/code/ci/e1cc654ef71996d836c5d051278130f50f768f84 I think if a user inputs +9.5GB for the end sector, it would be slightly confusing to silently drop the .5GB and just provide 9GB. I understand this is a limitation of GPT fdisk only allowing integers. Could we maybe convert 9.5G to 9500MB to allow decimals in GB? I'd imagine this decimal trickery would only be available for GB, TB, PT, and not MB. Thanks, -...
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anthal modified a comment on discussion Open Discussion
Hello! I have questions about Atari TOS partitions. 1. Why map "Atari TOS basic data" from GUID 734E5AFE-F61A-11E6-BC64-92361F002671 to MBR A2? gptfdisk is the only source I could find that has MBR partition type A2 mapped to Atari TOS (indirectly: in parttypes.cc, line 359), so A2 would be the MBR type for Atari TOS partitions. Other sources for MBR types (that don't list Atari) are e.g. https://www.win.tue.nl/~aeb/partitions/partition_types-1.html and https://thestarman.pcministry.com/asm/mbr/PartTypes.htm....
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Hello! I have questions about Atari TOS partitions. 1. Why map "Atari TOS basic data" from GUID 734E5AFE-F61A-11E6-BC64-92361F002671 to MBR A2? gptfdisk is the only source I could find that has MBR partition type A2 mapped to Atari TOS (indirectly): in parttypes.cc, line 359. Other sources for MBR types (that don't list Atari) are e.g. https://www.win.tue.nl/~aeb/partitions/partition_types-1.html and https://thestarman.pcministry.com/asm/mbr/PartTypes.htm. Also, I cannot find any partition type e.g....
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Hello! I have questions about Atari TOS partitions. Why map "Atari TOS basic data" from GUID 734E5AFE-F61A-11E6-BC64-92361F002671 to MBR A2? gptfdisk is the only source I could find that has MBR partition type A2 mapped to Atari TOS (indirectly): in parttypes.cc, line 359. Other sources for MBR types (that don't list Atari) are e.g. https://www.win.tue.nl/~aeb/partitions/partition_types-1.html and https://thestarman.pcministry.com/asm/mbr/PartTypes.htm. Also, I cannot find any partition type e.g....
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abdulbadii posted a comment on discussion Open Discussion
I believe that's aready in Administrator mode, so it's decisive the point of problem is in opening storage logically IMHO good, very useful to update readme to be more systematic with informative dependency both build time and mainly run time, and other definitive information
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joevt posted a comment on discussion Open Discussion
I don't know Windows. Can you run gdisk in a terminal window as Administrator?
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as a Wndows user, on Msys2/Mingw64, practicing just as Linux one: $ gdisk64 /dev/sda GPT fdisk (gdisk) version 1.0.10 Problem opening /Device/Harddisk0/Partition0 for reading! also $ gdisk64 /dev/disk0 GPT fdisk (gdisk) version 1.0.10 Problem opening \.\physicaldriveC for reading! So how is explanation on the usage on Windows
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as a Wndows user practicing just as Linux one: $ gdisk64 /dev/sda GPT fdisk (gdisk) version 1.0.10 Problem opening /Device/Harddisk0/Partition0 for reading! also $ gdisk64 /dev/disk0 GPT fdisk (gdisk) version 1.0.10 Problem opening \.\physicaldriveC for reading! So how is explanation on the usage on Windows
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as a Wndows user practicing just as Linux one: $ gdisk64.exe /dev/sda GPT fdisk (gdisk) version 1.0.3 Problem opening /Device/Harddisk0/Partition0 for reading! So how is explanation on the usage on Windows
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Lanchon posted a comment on discussion Open Discussion
quite a lot of embedded devices such as routers run OpenWrt, a widely used linux distro. most of these devices relay on MTD devices, but some use block devices such as eMMCs. devices using eMMCs tend to use GPT partitioning. it is extremely common to find MTD-based OpenWrt devices in which partitions physically overlap (in fact, it is quite hard to find devices that do not do this). a very common setup involves a partition for the linux kernel and a partition for an immutable (squashfs) OS image....
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MichaIng posted a comment on discussion Open Discussion
We had a hard time investigating the following error: # sgdisk -e image.img ... Warning! Secondary partition table overlaps the last partition by 2014 blocks! Try reducing the partition table size by 8056 entries. (Use the 's' item on the experts' menu.) Aborting write of new partition table. The image is sized to cover the end of the last partition + 34 sectors for the backup GPT, which contains the default 128 entries and hence has the default size of 32 sectors + header. The overlap of 2014 blocks...
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Fixed bug in display of Unicode characters greater than 0x10000
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GPT fdisk released /gptfdisk/1.0.10/fixparts-binaries/fixparts_1.0.10-1_i386.deb
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Version 1.0.10 release
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Niklas Gollenstede posted a comment on merge request #32
Very cool, thank you for the work you put into this as well!
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implement k/--move-backup-table/MoveSecondTable
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Sorry for the late reply; I've been pretty busy lately. I've merged this and added the changes I've suggested myself.
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Fine-tuning and documentation of new function to move the secondary/backup partition table
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implement k/--move-backup-table/MoveSecondTable
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Fixed accidental inclusion of stray code lines
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New partition type codes from the Discoverable Partitions Specification
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Updated NEWS for recent merge
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Minor enhancments
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Frediano Ziglio created merge request #36 on Code
Minor enhancments
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Hi, I'm following up on a bug in Ubuntu to apply an upstream commit to fix a bug. It would be nice for a new release to happen so that way Debian could also pick it up, and we don't have to manually maintain the patch. Ubuntu bug - https://bugs.launchpad.net/ubuntu/+source/gdisk/+bug/2039594 Upstream commit - https://sourceforge.net/p/gptfdisk/code/ci/e1cc654ef71996d836c5d051278130f50f768f84 Thanks, -Mitch
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Thanks for your reply! It's been a while since I posted this, and even longer since I wrote the code, so apologies if I miss something: Do such checks exist for (-)j / --move-main-table=sector? If so (and I missed to copy/adjust them), then that's what should be done, yes. If not, then: is moving the backup table more obscure / causing more potential harm than moving the main table? Either way gdisk reports the limited range "usable sectors" (and moving either table does require entering the expert...
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Thanks for your reply! It's been a while since I posted this, and even longer since I wrote the code, so apologies if I miss something: Do such checks exist for (-)j / --move-main-table=sector? If so (and I missed to copy/adjust them), then that's what should be done, yes. If not, then: is moving the backup table more obscure / causing more potential harm than moving the main table? Either way gdisk reports the limited range "usable sectors" (and moving either table does require entering the expert...
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Thanks for the submission; however, I see two problems with it as-is: I don't see an obvious way to detect when the backup partition table is in an odd location. When parted is fed a partition table that's been moved by your code, for instance, it warns that this has been done and offers to fix it. Currently, gdisk includes no such checks, so it won't detect such a move, even though improper use of the facility might result in severely reduced available disk space. I suggest adding a check to the...
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David Elie-Dit-Cosaque created merge request #35 on Code
Return exit code 0 after wiping a corrupted disk partition table
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Change sgdisk to return exit code 0 when wipe disk operation succeed with a corrupted disk
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Change sgdisk to return exit code 0 when wipe disk operation succeed with a corrupted disk
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hnuyt12 posted a comment on discussion Open Discussion
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Sophist posted a comment on discussion Open Discussion
I want to list EFI gdisk as an option in grub. Usually you should be able to load a *.efi module from GRUB using chainloader, however this is not working and instead I get an error. I am able to load e.g. the UefiShellX64.efi UEFI shell using chainloader but replacing UefiShellX64.efi with gdisk_x64.efi doesn't work. I note that the instructions say that this needs to be renamed to BOOTx64.EFI however https://wiki.archlinux.org/title/GPT_fdisk#gdisk_EFI_application suggests that you should be able...
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bhyalu posted a comment on discussion Open Discussion
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Tarq modified a comment on discussion Open Discussion
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Problem when starting to convert partition or disk via gdisk
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Gabríel Arthúr Pétursson created merge request #33 on Code
sgdisk: Add -k/--sector-size=value option
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Boris Vinogradov posted a comment on discussion Open Discussion
For running sgdisk and cgdisk utilities where are an same issue: % cgdisk dyld[27785]: Library not loaded: /usr/local/opt/ncurses/lib/libncursesw.6.dylib Referenced from: <26D62E86-66EE-3ED2-BE18-FD04B5A889BF> /usr/local/bin/cgdisk Reason: tried: '/usr/local/opt/ncurses/lib/libncursesw.6.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/usr/local/opt/ncurses/lib/libncursesw.6.dylib' (no such file), '/usr/local/opt/ncurses/lib/libncursesw.6.dylib' (no such file), '/usr/local/lib/libncursesw.6.dylib'...
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implement k/--move-backup-table/MoveSecondTable
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Minor code cleanup based on valgrind analysis
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Document previous merge
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Truncate decimal inputs (e.g., '9.5G' becomes '9G')
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Do some explicit casts in gptcurses.cc to eliminate compiler warnings.
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Document recent mergest
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Thanks for the improvement!
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b'Roderick W. Smith committed [a7e54d] on Code
Merge /u/djsp/gptfdisk/ branch fix-largest-new into master
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Allow partition dynamically allocated by --largest-new to be referenced by other options
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Thanks for the submission; however, it's not acceptable as-is. It works fine for gdisk, but the cgdisk, the prompt is ugly and accepts no input, thus freezing the program; and it breaks the flow in the command-line, non-interactive sgdisk with an unacceptable prompt. You'll need to change the structure of the prompting for each program (although it's possible you could create one to work for both cgdisk and gdisk and another for sgdisk). For sgdisk in particular, you'll need to add a new command-line...
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b'Roderick W. Smith committed [5754f6] on Code
Merge /u/khemraj/gptfdisk/ branch master into master
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Use 64bit off_t on 32bit linux systems
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LGTM. Thanks.
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Document recent merge.
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Fix NULL dereference when duplicating string argument
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LGTM. Thanks!
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David Joaquín Shourabi Porcel created merge request #31 on Code
Allow partition dynamically allocated by --largest-new to be referenced by other options
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xypron created merge request #30 on Code
Warn when deleting a system partition
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Frank posted a comment on discussion Open Discussion
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Khem Raj created merge request #29 on Code
Use 64bit off_t on 32bit linux systems
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Christian Helmuth posted a comment on discussion Open Discussion
Hi, I use GPT fdisk a lot to process image files (mostly sgdisk for EFI boot images) on Linux server installations. This works perfectly beside one downer DiskIO::DiskSync() in diskio-unix.cc, which takes ages on systems doing heavy block I/O concurrently to gdisk. This was already reported by Jim Estes in https://sourceforge.net/p/gptfdisk/discussion/939590/thread/dbd6166b/. Is there any chance to get a patch accepted that renders sync() optional? Any hints how to approach this or what to avoid...
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Przemyslaw Sztoch posted a comment on discussion Open Discussion
Please add percent unit (%) for create a new partition. sgdisk -n 1:0:50% -n 2:0:0 Very often we want to split the disk in half. Now you have to recalculate it manually. Support in gdisk for generating UUID for /var partition using systemd machineid UUID. If we change the type to a Linux /var partition, it should at least display the UUID that should be set on this machine to be valid for the current machineid. Support in sgdisk would also be usefulL: sgdisk -t 4:8310 -u 4:auto (auto works only if...
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Nehemiah posted a comment on discussion Open Discussion
Thanks for asking here. But I thing these attributes field is added after the recent updates. Because I have used it for the project of low cost offset smoker. And its working fine. You could check it. May be its the same about which you are talking.
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Damian Kurek created merge request #28
Fix NULL dereference when duplicating string argument
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Updated URLs in man pages to HTTPS rather than HTTP
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Updated guid.cc to deal with minor change in libuuid
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Fix failure & crash of sgdisk when compiled with latest popt (commit 740; presumably eventually release 1.19)
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