Hey. I added a revised journal_hint2.sh script that is not that opinionated. It's very rough now (i had a really long day). I also added a small c program hjhint.c that should basically do everything (shrinking, resizing, turning on and off). The only caveat is it won't work on Hurd (i only tested it on a linux host).
I didn't do another release (i wish a day is longer): Here is the script (now revised), please try it, I hope it will work. https://github.com/mnikic/hurd-journaling/blob/journal-main/contrib/journaling/journal-hint2.sh I should also try and get a Hurd on real hardware. That is the real test for file systems. Cannot wait to hear how it works out. Thank you very much for trying it out! On Thu, Aug 14, 2025 at 9:23 AM <jbra...@dismail.de> wrote: > August 14, 2025 at 11:32 AM, "Milos Nikic" <nikic.mi...@gmail.com mailto: > nikic.mi...@gmail.com?to=%22Milos%20Nikic%22%20%3Cnikic.milos%40gmail.com%3E > > wrote: > > > > > > > Hey Joshua, > > > > No you didn't do anything wrong. > > > > The tooling is not there yet. It is actually looking to do it on > partition 2 because that is where ext2 is on the official Hurd image. > > The tooling ain't ready for the real partition.I apologize for > recommending it to you! > > > > It's the morning here where I am and I'm at my work, but by evening I > hope to have better tooling to make this easy. > > > > Thanks for trying once again, > > And thanks for your patience! > > > > Milos > > No worries. I still need to compile your libdiskfs anyway. I'll try to > get that working. > > > > > On Thu, Aug 14, 2025, 6:19 AM Joshua Branson <jbra...@dismail.de mailto: > jbra...@dismail.de > wrote: > > > > > > > > Milos Nikic <nikic.mi...@gmail.com mailto:nikic.mi...@gmail.com > > writes: > > > > > > > Hi Diego and Joshua > > > > > > > > @Joshua > > > > Thanks! Great to hear you shrank /home successfully. > > > > I got to say I never even tried on real hardware so thanks for > trying! I also never tried it on a separate mount :). Im curious > > > > of the results you will have. > > > > > > > > The script should still work whether its the image or real hardware: > > > > On real hardware one can use something like: > > > > sudo ./contrib/journaling/journal-hint2.sh /dev/sdXY on > > > > > > > > A couple safety notes for running the hint script on real hardware: > > > > - Please run it on the partition device (e.g., /dev/sdXY), not on > the whole disk. > > > > - Do not write the hint while the filesystem is mounted read-write. > ext2 caches the superblock; writing it raw while mounted > > > > can be lost or cause inconsistency. > > > > > > > > For /home (assuming it’s a separate ext2 partition): > > > > 0) make a backup if you can > > > > 1) unmount /home (close apps first) > > > > sudo umount /home > > > > > > This worked just fine. `mount` showed that only / was mounted. > > > > > > > 2) ensure clean state > > > > sudo e2fsck -f /dev/sdXY > > > > > > This also worked just fine. > > > > > > > 3) write the journaling hint (device instead of .img) > > > > sudo ./contrib/journaling/journal-hint2.sh /dev/sdXY on > > > > > > cat /etc/fstab > > > # /etc/fstab: static file system information. > > > # > > > # <file system> <mount point> <type> <options> <dump> <pass> > > > /dev/hd0s1 / ext2 defaults 0 1 > > > /dev/hd0s6 /home ext2 defaults 0 2 > > > /dev/hd0s5 none swap sw 0 0 > > > # /dev/hd2 /media/cdrom0 iso9660 noauto 0 0 > > > # /dev/fd0 /media/floppy0 auto rw,noauto 0 0 > > > > > > # ./contrib/journaling/journal-hint2.sh /dev/sd0s6 on > > > > > > This is where I got stuck. When I ran the above command, I got this > > > error message: > > > > > > [ERROR] could not find partition 2 in fdisk output > > > > > > What did I do wrong? > > > > > > -- > > > > > > Joshua Branson > > > Sent from the Hurd > > > > > >
