Hi, Pascal Hambourg <pas...@plouf.fr.eu.org> wrote (Sun, 15 Sep 2024 14:39:42 +0200): > On 15/09/2024 à 12:27, Holger Wansing wrote: > > > > Using the "separate home+var+tmp" recipe under UEFI variant on a 10G disk > > results in an error > > > > "Unable to satisfy all constraints on the partition" > > "Failed to partition the selected disk. This probably happened because there > > are too many (primary) partitions in the partition table." > (...) > > In the partitioning overview (screenshot 3) the /home partition is > > missing, so this is the one which raises the error apparently. > > Also, the /tmp partition size (468MB) is lower that the minimum size > defined in the EFI "multi" recipe (500MB). The minimum disk size for > this recipe is 11768MB, so the recipe should not be available on a > 10.7GB (10GiB) disk. I suspect you hit the same bug on an already > partitioned disk as described in > <https://lists.debian.org/debian-boot/2024/08/msg00151.html>. > > Summary: existing reusable partitions (efi and swap) minimum sizes may > wrongly be ignored when calculating the required minimum disk size even > when using an entire disk.
You are right. A test on a freshly generated qemu disk does not trigger this bug. (In fact, this recipe is not provided at all.) So this is indeed an 'reuse' issue. > Last time I guess it did not trigger an error because /home could be > created, athough with the wrong size. This time, there was no free space > left to create /home at all. > > The bug already existed previously and is totally unrelated with the MR, > it could be triggered with specific disk sizes. It just happened that > 10GiB is such a specific size for the updated recipes. > It cannot happen on a disk with no efi nor swap partitions. > > > Do we need to adjust the minimum disk size for this recipe maybe, or > > similar? > > The minimum disk size for a recipe is calculated automatically by > summing up the minimum partition sizes in the recipe. Changing minimum > partition sizes would just change the disk size which triggers the bug. > > You may want to try the fix I prepared but considered not essential > (useful only on small disks with sizes close to the required minimum > size). Who would be fool enough to use the multi recipe on a 10GB disk ? You are of course right here. We cannot make it fool-proof for all and every situation. > <https://salsa.debian.org/pham/partman-auto/-/commits/choose_recipe-fixes?ref_type=heads> Holger -- Holger Wansing <hwans...@mailbox.org> PGP-Fingerprint: 496A C6E8 1442 4B34 8508 3529 59F1 87CA 156E B076
