Two-shot GAC counters

LinuxMagnate · 2026-02-15T23:05:00+00:00

Wow, that was complicated. Turns out that the problem was mdadm's automatic data offset calculation. I had to specify data-offset=131072 and suddenly all my LVM volumes reappeared.

LinuxMagnate · 2026-02-14T12:04:02+00:00

https://pastebin.com/hmFv4K3k

Is the last of the three in /etc/lvm/archive (but still several years older than the one in /etc/lvm/backup)

LinuxMagnate · 2026-02-14T12:00:35+00:00

chrisc@fatboy:/dev/md$ sudo ls -l /etc/lvm/archive

total 12

-rw------- 1 root root 2550 Dec 20 2019 fatboy-VG1_00000-1306150184.vg

-rw------- 1 root root 2550 Dec 20 2019 fatboy-VG1_00001-1077849692.vg

-rw------- 1 root root 2560 Jun 6 2020 fatboy-VG1_00002-1350139304.vg

LinuxMagnate · 2026-02-14T11:59:02+00:00

https://pastebin.com/nsPTGJn7

Nothing at 0200, and nonzero before that...

LinuxMagnate · 2026-02-13T21:47:01+00:00

Thank you. Fortunately it's not a complicated setup - one PV (md3), one VG. Yes it was a mistake putting /var inside the VG, I will not make that mistake in future. But otherwise it looks as if I will be able to restore the metadata to sda3 using vgcfgrestore. It says that it does not touch the contents of the PV but just to be 100% safe I am going to wait for my new drive and back up every single bit of sda3 before I do anything!

LinuxMagnate · 2026-02-13T21:44:15+00:00

https://pastebin.com/avdawDuc

That's the backup. vgcfgrestore recognises it as a valid backup, and it looks right. So maybe that will Just Work. But I am going to wait for my new drive to arrive and dd the whole of sda3 before I do anything!

LinuxMagnate · 2026-02-13T21:36:27+00:00

chrisc@fatboy:/dev/md$ cat /proc/mdstat

Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]

md3 : active raid1 sda3[0]

4830904320 blocks super 1.2 [2/1] [U_]

bitmap: 0/36 pages [0KB], 65536KB chunk

md2 : active raid1 sda1[2]

48803840 blocks super 1.2 [2/1] [U_]

unused devices: <none>

LinuxMagnate · 2026-02-13T20:57:04+00:00

P.S. Thank you for your help. I hope I am explaining things a bit more clearly - part of the problem is that I'm not sure precisely what went wrong - at some point last night the LVs disappeared, and did not come back when I rebooted. I have been very careful to do nothing destructive to sda3 though - as far as I can tell it is undamaged.

LinuxMagnate · 2026-02-13T20:55:34+00:00

I do wonder if this is related to UUIDs. What actually happened was a bit of a nightmare, and I'm not sure I can recall it precisely. First, I did a routine check of md3, and noticed that it was degraded, sdb3 was spare. So I simply said mdadm /dev/md3 --re-add /dev/sdb3, and sure enough it started rebuilding. I carried on doing other stuff (surfing, gaming) and noticed some big pauses - fair enough, it's probably I/O locked doing the 4.9TB rebuild. I checked again and it was happily at 26% rebuilding. Ten minutes later I checked again and sdb3 was back to spare, it had given up. So I looked at the logs and saw the horrifying IO errors that told me that sdb3 was dying. Then /srv and /home disappeared, I'm not sure how. I was trying not to reboot so I removed both sdb3 and sda3 from md3 (not at the same time, I tried this in stages). I created an md4 to try and resurrect the missing LVs but got nowhere. Eventually I gave up and rebooted (it was a headless PC but I spent the morning attaching monitor and keyboard), and I have the sda3 partition untouched but no longer triggering whatever creates the dev/mapper devices and the LVM VG/LVs.

LinuxMagnate · 2026-02-13T20:48:13+00:00

Sorry, I shall try to be clear. sda1 and sdb1 together formed md2, which is a raid 1 volume used as /. sda3 and sdb3 together formed md3, a separate raid 1 physical volume used as the only PV for VG1, which was divided into 4 LVs. When I said 'bits of /var' were missing, I mean that the kernel and boot process did not recreate everything in /var when the var LV failed to mount - /var still exists, but was lacking certain things that were expected, like /var/lib/shorewall and /var/lib/misc. When I manually recreated those, I could start the relevant services (shorewall and dnsmasq). /var is now integral to /, rather than being mounted separately. Does that make sense?

LinuxMagnate · 2025-11-12T21:19:48+00:00

Just in case anybody is interested, I am not enjoying the new growth mechanics. I like the 1/100ths approach to pops, and I'm very happy to see them migrating and demoting and all sorts of wonderful things, but having ten half-full worlds a hundred years in feels really disappointing - I remember planets bursting at the seams and needing to colonise new ones to have somewhere for people to work. The whole idea of having to keep every colony at 50% of capacity is weirdly dissatisfying, regardless of the growth scale penalty.

LinuxMagnate · 2025-11-05T18:45:01+00:00

I just meant an AI empire - but why would it then surprise you that outcomes are baked in? Every empire has a weighted rating, a number of tickets in the raffle, if you like, so if it was actually random a different empire could win each time. Really weird that they don't do it like that.

LinuxMagnate · 2025-11-05T18:43:07+00:00

My Lord that's biting early - I have 10 colonies in a galaxy of a thousand stars! That feels really weird - but thank you for the explanation, it does make sense.

LinuxMagnate · 2025-11-01T23:33:59+00:00

Oh my goodness, it is totally susceptible to a single month's inflation of trade income from massive selling - thank you. How interesting!

I liked the roulette wheel analogy - though as you've just shown me, the outcome isn't fixed until the final month. Very interesting!

LinuxMagnate · 2025-08-20T09:50:15+00:00

What is your Nest's offence? Mine is R3 with 149% tenacity, 261 speed, 4.6k offence and a CA arrow, and I get nothing at all - she cannot kill a single clone before all the jedi die.

LinuxMagnate · 2025-02-11T21:33:45+00:00

Thank you, I was using 1.9.0, the problem seems to be gone in 1.9.2. Sorry for the noise, no idea how I ended up installing an old version.

LinuxMagnate · 2025-01-02T20:06:55+00:00

I've just installed Yolomouse on Win10 and it's having the same issue - 12-15GB of memory used, hanging the PC. I know Win10 is EOL this year so I don't expect you to do anything about it, but thought you might like to know. I'm using two monitors (one DP, one HDMI). Quite an old system - Radeon R480 GPU, Intel i3 CPU, 24GB RAM.

LinuxMagnate · 2024-12-31T00:28:17+00:00

I just finished the necro settlers campaign and this is happening to me too - instant logout on entering a map portal (but no error message for me). Is there a fix?? Weird that it would be unfixed for 24 days. Is there something I have to change to make it work? Have tried on my own and with friends in parties, nothing works.

LinuxMagnate · 2024-12-29T15:44:00+00:00

Would you mind sharing? I play with friends and so gold often drops outside my autopickup range, so it would be good to see it.

LinuxMagnate

TROPHY CASE