A "live" profile is missing

Leo Famulari wrote on 19 Jan 19:56 +0100

Recipients:(address . bug-guix@gnu.org)

Message-ID:YAcrTVCVLiXBcqjG@jasmine.lan

My root user's latest default package installation profile has gonemissing:
------# ls -l ~root/.guix-profilelrwxrwxrwx 1 root root 45 Jun 13 2017 /root/.guix-profile -> /var/guix/profiles/per-user/root/guix-profile
# realpath ~root/.guix-profile /gnu/store/1ph7vxq4hhqr1hjkmgin16p1cqx3v904-profile
# realpath --canonicalize-existing ~root/.guix-profile realpath: /root/.guix-profile: No such file or directory
# ls -l /var/guix/profiles/per-user/root/total 0lrwxrwxrwx 1 root root 21 Jan 18 13:24 current-guix -> current-guix-113-linklrwxrwxrwx 1 root root 51 Dec 6 18:50 current-guix-109-link -> /gnu/store/1bng1iikqj2h9hfqylcd47ya1cmjf2ww-profilelrwxrwxrwx 1 root root 51 Dec 8 20:05 current-guix-110-link -> /gnu/store/kpp7rq67df1751g6al5fxv7anm4h6fvv-profilelrwxrwxrwx 1 root root 51 Dec 20 17:45 current-guix-111-link -> /gnu/store/yg9r3vys1cx3xwsqmbl2kq20ih4xbryi-profilelrwxrwxrwx 1 root root 51 Jan 13 03:27 current-guix-112-link -> /gnu/store/4aj0ydxfrbfz2yshlv1qg6kr5qw17mjz-profilelrwxrwxrwx 1 root root 51 Jan 18 13:24 current-guix-113-link -> /gnu/store/5kfv0zzf1mmkyl3c9q42piwcb0h3fyzj-profile-rw-r--r-- 1 root root 0 Jan 19 13:44 current-guix.locklrwxrwxrwx 1 root root 21 Jan 18 13:25 guix-profile -> guix-profile-197-linklrwxrwxrwx 1 root root 51 Dec 20 17:47 guix-profile-192-link -> /gnu/store/hnmdaga6m5d1jvq1yjs0w1w10r8ffsha-profilelrwxrwxrwx 1 root root 51 Dec 22 21:32 guix-profile-193-link -> /gnu/store/wfz6qbzd6imqg7cg0w5f8arnpzc5a8ck-profilelrwxrwxrwx 1 root root 51 Jan 1 01:44 guix-profile-194-link -> /gnu/store/daixf0dvmxlavplc1v987sfqmkjv258j-profilelrwxrwxrwx 1 root root 51 Jan 9 13:32 guix-profile-195-link -> /gnu/store/w14sbx2ja9g178lxbl8173c3xbbcapf9-profilelrwxrwxrwx 1 root root 51 Jan 13 03:29 guix-profile-196-link -> /gnu/store/99qhzhhrm73mawbzcgp9kfcxhzs51kk3-profilelrwxrwxrwx 1 root root 51 Jan 18 13:25 guix-profile-197-link -> /gnu/store/1ph7vxq4hhqr1hjkmgin16p1cqx3v904-profile-rw-r--r-- 1 root root 0 Jan 18 13:25 guix-profile.lock
# ls -l /gnu/store/1ph7vxq4hhqr1hjkmgin16p1cqx3v904-profilels: cannot access '/gnu/store/1ph7vxq4hhqr1hjkmgin16p1cqx3v904-profile': No such file or directory------
That's weird, right? Any ideas?
I noticed a change in the garbage collector performance recently. Itseemed to slow down by a lot, with frequent pauses. I wonder if thatcould be related?
Here are the generations of my current-guix profile (this is not theprofile that is broken):
------# guix package -p ~/.config/guix/current -lGeneration 109 Dec 06 2020 18:50:21 guix 8f80565 out /gnu/store/ikwp5p0nfhlmp2xvxyh0l5x7349ws24k-guix-8f805657b
Generation 110 Dec 08 2020 20:05:00 + guix 02b21f3 out /gnu/store/b30hyzr2ln51dc7sdrwgzqklmkl71sni-guix-02b21f35c - guix 8f80565 out /gnu/store/ikwp5p0nfhlmp2xvxyh0l5x7349ws24k-guix-8f805657b
Generation 111 Dec 20 2020 17:45:49 + guix cfee860 out /gnu/store/xvswkzhadlsdlkxj2yikfq60vakvmpi8-guix-cfee8608c - guix 02b21f3 out /gnu/store/b30hyzr2ln51dc7sdrwgzqklmkl71sni-guix-02b21f35c
Generation 112 Jan 13 2021 03:27:33 + guix 645a28e out /gnu/store/08rk3q8s9qqzph0hah66mx1ws2ssll15-guix-645a28ee9 - guix cfee860 out /gnu/store/xvswkzhadlsdlkxj2yikfq60vakvmpi8-guix-cfee8608c
Generation 113 Jan 18 2021 13:24:01 (current) + guix c20eee7 out /gnu/store/zpmabbkh27myw01gjfczbrlqjr0ih5pd-guix-c20eee77a - guix 645a28e out /gnu/store/08rk3q8s9qqzph0hah66mx1ws2ssll15-guix-645a28ee9 ------

Leo Famulari wrote on 20 Jan 19:55 +0100

Recipients:(address . 45992@debbugs.gnu.org)

Message-ID:YAh8p0LZramoHAO1@jasmine.lan

On Tue, Jan 19, 2021 at 01:56:13PM -0500, Leo Famulari wrote:

Toggle quote (3 lines)

> # realpath ~root/.guix-profile > /gnu/store/1ph7vxq4hhqr1hjkmgin16p1cqx3v904-profile

I checked, and this store item is not in the Guix database.

Thorsten Wilms wrote on 20 Jan 19:59 +0100

Empty guix

Recipients:(address . 45992@debbugs.gnu.org)

Message-ID:20210120195908.652f591a07bfe9a6c8dfb36c@freenet.de

I just talked with Leo on IRC and he thinks the following might berelated.
`guix` stopped working, now taking any arguments without effect. Ifound out that the associated store item is empty!
$which guix/home/thorwil/.config/guix/current/bin/guix $ls -l /home/thorwil/.config/guix/current/bin/guix... /gnu/store/xa1xx4gpnvvf4wpzx63v1swl7gvqyw5d-guix-command
$file /gnu/store/xa1xx4gpnvvf4wpzx63v1swl7gvqyw5d-guix-command... empty
This is on just about 1 week old hardware, Ubuntu Unity 20.10, Kernel5.8.0-38, no power failures, ext4 file system. No direct manipulation,just using `guix pull`, updating, installing and removing packages.
Meanwhile, `sudo guix pull` still worked.
As suggested by Leo, I did:$cd /var/guix/profiles/per-user/thorwil$rm current-guix$ln -s current-guix-4-link current-guix
(Trying to `ln -s current-guix-4-link current-guix` without movingcurrent-guix out of the way first, failed with:"ln: failed to create symbolic link 'current-guix/current-guix-4-link':Read-only file system".)
-- Thorsten Wilms <t_w_@freenet.de>

Ludovic Courtès wrote on 21 Jan 13:57 +0100

Re: bug#45992: A "live" profile is missing

Recipients:(name . Leo Famulari)(address . leo@famulari.name)(address . 45992@debbugs.gnu.org)

Message-ID:87zh12a1md.fsf@gnu.org

Hi Leo,
Leo Famulari <leo@famulari.name> skribis:

Toggle quote (6 lines)

> On Tue, Jan 19, 2021 at 01:56:13PM -0500, Leo Famulari wrote:>> # realpath ~root/.guix-profile >> /gnu/store/1ph7vxq4hhqr1hjkmgin16p1cqx3v904-profile>> I checked, and this store item is not in the Guix database.

Could it be that you (1) configured a checkout with the wrong--localstatedir, (2) started guix-daemon from that checkout, and (3) ran‘guix gc’ or equivalent?
The ‘configure’ script normally prevents #1, but we never know.
Thanks,Ludo’.

Leo Famulari wrote on 21 Jan 18:36 +0100

Recipients:(name . Ludovic Courtès)(address . ludo@gnu.org)(address . 45992@debbugs.gnu.org)

Message-ID:YAm7qHUu92CimTub@jasmine.lan

On Thu, Jan 21, 2021 at 01:57:46PM +0100, Ludovic Courtès wrote:

Toggle quote (4 lines)

> Could it be that you (1) configured a checkout with the wrong> --localstatedir, (2) started guix-daemon from that checkout, and (3) ran> ‘guix gc’ or equivalent?

1) I could have misconfigured a checkout, although it is unlikely. Idon't see any incorrect './configure' invocations in my shell history.
2) I never use the guix-daemon from a Git checkout. Really! I don't evenknow off-hand where the built guix-daemon is located. I would have tofind it.
3) I run `guix gc` several times per week.

Ludovic Courtès wrote on 25 Jan 19:11 +0100

Recipients:(name . Leo Famulari)(address . leo@famulari.name)(address . 45992@debbugs.gnu.org)

Message-ID:871re851ka.fsf@gnu.org

Hi Leo,
Leo Famulari <leo@famulari.name> skribis:

Toggle quote (8 lines)

> On Thu, Jan 21, 2021 at 01:57:46PM +0100, Ludovic Courtès wrote:>> Could it be that you (1) configured a checkout with the wrong>> --localstatedir, (2) started guix-daemon from that checkout, and (3) ran>> ‘guix gc’ or equivalent?>> 1) I could have misconfigured a checkout, although it is unlikely. I> don't see any incorrect './configure' invocations in my shell history.

What does ‘grep ^localstatedir config.log’ return?

Toggle quote (4 lines)

> 2) I never use the guix-daemon from a Git checkout. Really! I don't even> know off-hand where the built guix-daemon is located. I would have to> find it.

OK.

Toggle quote (2 lines)

> 3) I run `guix gc` several times per week.

Alright.
So this is really weird. AFAICS nothing has changed in this area. Youcould try building a new profile generation and then run things like‘guix gc --list-live’ to see if the profile (in /gnu/store) is there,and also ‘guix gc --list-roots’ to see if the profile itself (normally/var/guix/profiles/per-user/$USER/guix-profile) is listed.
HTH,Ludo’.

Leo Famulari wrote on 25 Jan 20:54 +0100

Recipients:(name . Ludovic Courtès)(address . ludo@gnu.org)(address . 45992@debbugs.gnu.org)

Message-ID:YA8iCkQFpzAkoNB1@jasmine.lan

On Mon, Jan 25, 2021 at 07:11:33PM +0100, Ludovic Courtès wrote:

Toggle quote (2 lines)

> What does ‘grep ^localstatedir config.log’ return?

For my "master" and "staging" worktrees, it returns:localstatedir='/var'
However, I've since done a full garbage collection and reconfigured, soit doesn't really prove anything.

Toggle quote (6 lines)

> So this is really weird. AFAICS nothing has changed in this area. You> could try building a new profile generation and then run things like> ‘guix gc --list-live’ to see if the profile (in /gnu/store) is there,> and also ‘guix gc --list-roots’ to see if the profile itself (normally> /var/guix/profiles/per-user/$USER/guix-profile) is listed.

--list-live actually starts by printing this:
------$ guix gc --list-livefinding garbage collector roots...skipping invalid root from `/var/guix/profiles/per-user/root/guix-profile-197-link' to `/gnu/store/1ph7vxq4hhqr1hjkmgin16p1cqx3v904-profile'determining live/dead paths...[... and then the paths are printed ...]------
And --list-roots does include the bogus profile, exactly as described inthe warning from --list-live:
------# guix gc --list-roots/var/guix/profiles/per-user/root/current-guix-113-link/var/guix/profiles/per-user/root/current-guix-109-link/var/guix/profiles/per-user/root/current-guix-110-link/var/guix/profiles/per-user/root/current-guix-111-link/var/guix/profiles/per-user/root/current-guix-112-link/var/guix/profiles/per-user/root/current-guix-113-link/var/guix/profiles/per-user/root/guix-profile-196-link/var/guix/profiles/per-user/root/guix-profile-192-link/var/guix/profiles/per-user/root/guix-profile-193-link/var/guix/profiles/per-user/root/guix-profile-194-link/var/guix/profiles/per-user/root/guix-profile-195-link/var/guix/profiles/per-user/root/guix-profile-196-link/var/guix/profiles/per-user/root/guix-profile-197-link/var/guix/profiles/per-user/leo/current-guix-152-link/var/guix/profiles/per-user/leo/current-guix-147-link/var/guix/profiles/per-user/leo/current-guix-148-link/var/guix/profiles/per-user/leo/current-guix-149-link/var/guix/profiles/per-user/leo/current-guix-150-link/var/guix/profiles/per-user/leo/current-guix-151-link/var/guix/profiles/per-user/leo/current-guix-152-link/var/guix/profiles/per-user/leo/guix-profile-642-link/var/guix/profiles/per-user/leo/guix-profile-631-link/var/guix/profiles/per-user/leo/guix-profile-632-link/var/guix/profiles/per-user/leo/guix-profile-633-link/var/guix/profiles/per-user/leo/guix-profile-634-link/var/guix/profiles/per-user/leo/guix-profile-635-link/var/guix/profiles/per-user/leo/guix-profile-636-link/var/guix/profiles/per-user/leo/guix-profile-637-link/var/guix/profiles/per-user/leo/guix-profile-638-link/var/guix/profiles/per-user/leo/guix-profile-639-link/var/guix/profiles/per-user/leo/guix-profile-640-link/var/guix/profiles/per-user/leo/guix-profile-641-link/var/guix/profiles/per-user/leo/guix-profile-642-link/var/guix/profiles/per-user/leo/current-guix-147-link/home/leo/.cache/guix/inferiors/xme6psb4eddn2fvq262cxw6yxepo7reqzpkqf7r24hpemqkqddoq/var/guix/profiles/per-user/leo/current-guix-152-link/root/guix-profile-staging-1-link/var/guix/profiles/per-user/root/current-guix-112-link/var/guix/profiles/per-user/root/current-guix-109-link/home/leo/.cache/guix/inferiors/erkfkimh2njpo5acqlz4ep5o6iihv3bgmfxpahltoityb3h5sguq/var/guix/profiles/per-user/root/current-guix-111-link/var/guix/profiles/per-user/leo/current-guix-150-link/var/guix/profiles/per-user/root/current-guix-110-link/var/guix/profiles/per-user/root/current-guix-113-link/var/guix/profiles/per-user/leo/current-guix-148-link/home/leo/.cache/guix/inferiors/jtzxrv5w2ppetxbu5sfxa45y36fjvgygksqu3uu7o36kizufmhta/root/.config/guix/latest/home/leo/.cache/guix/inferiors/xrlvjdtbkf6yqqcgwo34arbfpnb4lszopf7bcj4mq3etpl6dxbra/var/guix/profiles/per-user/leo/current-guix-149-link/var/guix/profiles/per-user/leo/current-guix-151-link/var/guix/profiles------
Regarding the suspicious "/root/guix-profile-staging-1-link", it'sleftover from testing the staging branch. I created it with `guixpull --branch=staging --profile=/root/guix-profile-staging`.
And, it's time to delete /root/.config/guix/latest :)

Ludovic Courtès wrote on 25 Jan 21:55 +0100

Recipients:(name . Leo Famulari)(address . leo@famulari.name)(address . 45992@debbugs.gnu.org)

Message-ID:87o8hc3ff6.fsf@gnu.org

Leo Famulari <leo@famulari.name> skribis:

Toggle quote (9 lines)

> On Mon, Jan 25, 2021 at 07:11:33PM +0100, Ludovic Courtès wrote:>> What does ‘grep ^localstatedir config.log’ return?>> For my "master" and "staging" worktrees, it returns:> localstatedir='/var'>> However, I've since done a full garbage collection and reconfigured, so> it doesn't really prove anything.

OK.

Toggle quote (7 lines)

> --list-live actually starts by printing this:>> ------> $ guix gc --list-live> finding garbage collector roots...> skipping invalid root from `/var/guix/profiles/per-user/root/guix-profile-197-link' to `/gnu/store/1ph7vxq4hhqr1hjkmgin16p1cqx3v904-profile'

That means the target of this symlink was already invalid/non-existent,right?

Toggle quote (3 lines)

> And --list-roots does include the bogus profile, exactly as described in> the warning from --list-live:

OK.
If there’s a root pointing to the profile, and the profile no longerexists, it could be that the root was created after the profile had beendeleted. AFAIK that cannot happen in normal operation, so you’d reallyhave to fiddle with /var/guix/profiles to achieve that.
So… I don’t see how this could happen!
Ludo’.

Ludovic Courtès wrote on 25 Jan 21:55 +0100

Recipients:(name . Leo Famulari)(address . leo@famulari.name)(address . 45992@debbugs.gnu.org)

Message-ID:87mtww3fee.fsf@gnu.org

Leo Famulari <leo@famulari.name> skribis:

Toggle quote (9 lines)

OK.

Toggle quote (7 lines)

That means the target of this symlink was already invalid/non-existent,right?

Toggle quote (3 lines)

> And --list-roots does include the bogus profile, exactly as described in> the warning from --list-live:

Leo Famulari wrote on 25 Jan 22:51 +0100

Recipients:(name . Ludovic Courtès)(address . ludo@gnu.org)(address . 45992@debbugs.gnu.org)

Message-ID:YA89bX+HzJweQjx0@jasmine.lan

On Mon, Jan 25, 2021 at 09:55:09PM +0100, Ludovic Courtès wrote:

Toggle quote (7 lines)

> > $ guix gc --list-live> > finding garbage collector roots...> > skipping invalid root from `/var/guix/profiles/per-user/root/guix-profile-197-link' to `/gnu/store/1ph7vxq4hhqr1hjkmgin16p1cqx3v904-profile'> > That means the target of this symlink was already invalid/non-existent,> right?

Right, that store item did not exist.

Toggle quote (7 lines)

> If there’s a root pointing to the profile, and the profile no longer> exists, it could be that the root was created after the profile had been> deleted. AFAIK that cannot happen in normal operation, so you’d really> have to fiddle with /var/guix/profiles to achieve that.> > So… I don’t see how this could happen!

Mysterious...

Ludovic Courtès wrote on 26 Jan 14:17 +0100

control message for bug #45992

Recipients:(address . control@debbugs.gnu.org)

Message-ID:87tur3zvkf.fsf@gnu.org

tags 45992 + moreinfoquit

Leo Famulari wrote on 30 Jan 00:12 +0100

Re: bug#45992: A "live" profile is missing

Recipients:(name . Ludovic Courtès)(address . ludo@gnu.org)(address . 45992@debbugs.gnu.org)

Message-ID:YBSWSMC1t3iWRKrn@jasmine.lan

I don't think that this message is really relevant to the bug report. Itdescribes some corrupted store items on my computer and might beinteresting as examples of what goes wrong when /gnu/store is writable.
This is on Debian, where /gnu/store is just a "regular directory",without the protection you get on Guix System.
I noticed that three store items have been altered somehow:
------$ guix gc --verify=contents                                               reading the store... checking path existence...checking hashes...path `/gnu/store/4aj0ydxfrbfz2yshlv1qg6kr5qw17mjz-profile' was modified! expected hash `2f0a69784b287ba297082209b928e46b2f8f4925cab00996cd23699a468cc8d1', got `bb3067ed7fa0e11b7f57ad9d4d8428ce9312a1b7d0bd638d7ce16e447e452dee'path `/gnu/store/5kfv0zzf1mmkyl3c9q42piwcb0h3fyzj-profile' was modified! expected hash `9f8281ec9f8e5bc173739b36e8ffc5e088667f17e57e496f51a22f59340d4643', got `b4e187418d96c984f543f50a0fc3709d90056423c66dc09e7548aa06dcdb8e9a'path `/gnu/store/7y3lvk3xf4im8n44337mc6y0ccysvfia-font-dejavu-2.37' was modified! expected hash `5f4f3e0d3eb79e67fc38654a1277709a95ec1ca85253d4c40cb2f9e5514cafa7', got `e726b2163b08b3bd7edb95f29d8e29c0c70ae356d7a4d898ade486b71b0f80ed'------
None of these are the "missing" profile.
Both of the profiles have some suspicious links like these:
------ls -l /gnu/store/4aj0ydxfrbfz2yshlv1qg6kr5qw17mjz-profiletotal 20lrwxrwxrwx 3 root root   62 Dec 31  1969 bin -> /gnu/store/08rk3q8s9qqzph0hah66mx1ws2ssll15-guix-645a28ee9/binlrwxrwxrwx 1 root root   12 Jan 20 13:27 current-guix -> current-guixlrwxrwxrwx 1 root root   21 Jan 20 13:28 current-guix-112-link -> current-guix-112-linklrwxrwxrwx 1 root root   21 Jan 20 13:28 current-guix-113-link -> current-guix-113-linkdr-xr-xr-x 2 root root 4096 Dec 31  1969 etcdr-xr-xr-x 2 root root 4096 Dec 31  1969 lib-r--r--r-- 2 root root  851 Dec 31  1969 manifestdr-xr-xr-x 3 root root 4096 Dec 31  1969 share------
The timestamps lead me to think I messed these up while trying toworkaround the missing profile that spurred this bug report.
In the font-dejavu store item, I noticed that not all the files havetheir timestamps set correctly:
------/gnu/store/7y3lvk3xf4im8n44337mc6y0ccysvfia-font-dejavu-2.37└── [Dec 31  1969]  share    ├── [Dec 31  1969]  doc    │   └── [Dec 31  1969]  font-dejavu-2.37    │       └── [Dec 31  1969]  LICENSE    ├── [Dec 31  1969]  fontconfig    │   └── [Dec 31  1969]  conf.avail    │       ├── [Dec 31  1969]  20-unhint-small-dejavu-sans.conf    │       ├── [Dec 31  1969]  20-unhint-small-dejavu-sans-mono.conf    │       ├── [Dec 31  1969]  20-unhint-small-dejavu-serif.conf    │       ├── [Dec 31  1969]  57-dejavu-sans.conf    │       ├── [Dec 31  1969]  57-dejavu-sans-mono.conf    │       └── [Dec 31  1969]  57-dejavu-serif.conf    └── [Dec 31  1969]  fonts        ├── [Dec 31  1969]  truetype        │   ├── [Dec 31  1969]  DejaVuMathTeXGyre.ttf        │   ├── [Dec 31  1969]  DejaVuSans-BoldOblique.ttf        │   ├── [Dec 31  1969]  DejaVuSans-Bold.ttf        │   ├── [Dec 31  1969]  DejaVuSansCondensed-BoldOblique.ttf        │   ├── [Dec 31  1969]  DejaVuSansCondensed-Bold.ttf        │   ├── [Dec 31  1969]  DejaVuSansCondensed-Oblique.ttf        │   ├── [Dec 31  1969]  DejaVuSansCondensed.ttf        │   ├── [Dec 31  1969]  DejaVuSans-ExtraLight.ttf        │   ├── [Dec 31  1969]  DejaVuSansMono-BoldOblique.ttf        │   ├── [Dec 31  1969]  DejaVuSansMono-Bold.ttf        │   ├── [Dec 31  1969]  DejaVuSansMono-Oblique.ttf        │   ├── [Dec 31  1969]  DejaVuSansMono.ttf        │   ├── [Dec 31  1969]  DejaVuSans-Oblique.ttf        │   ├── [Dec 31  1969]  DejaVuSans.ttf        │   ├── [Dec 31  1969]  DejaVuSerif-BoldItalic.ttf        │   ├── [Dec 31  1969]  DejaVuSerif-Bold.ttf        │   ├── [Dec 31  1969]  DejaVuSerifCondensed-BoldItalic.ttf        │   ├── [Dec 31  1969]  DejaVuSerifCondensed-Bold.ttf        │   ├── [Dec 31  1969]  DejaVuSerifCondensed-Italic.ttf        │   ├── [Dec 31  1969]  DejaVuSerifCondensed.ttf        │   ├── [Dec 31  1969]  DejaVuSerif-Italic.ttf        │   ├── [Dec 31  1969]  DejaVuSerif.ttf        │   └── [Jun 17  2020]  .uuid        └── [Jun 17  2020]  .uuid------
What's up with those '.uuid' files?

Ludovic Courtès wrote on 31 Jan 17:40 +0100

Recipients:(name . Leo Famulari)(address . leo@famulari.name)(address . 45992@debbugs.gnu.org)

Message-ID:87ft2hm54d.fsf@gnu.org

Hi Leo,
Leo Famulari <leo@famulari.name> skribis:

Toggle quote (7 lines)

> I don't think that this message is really relevant to the bug report. It> describes some corrupted store items on my computer and might be> interesting as examples of what goes wrong when /gnu/store is writable.>> This is on Debian, where /gnu/store is just a "regular directory",> without the protection you get on Guix System.

We now provide a ‘gnu-store.mount’ systemd service that makes /gnu/storeread-only, as on Guix System. I suppose it wasn’t enabled on thismachine, right?
[...]

Toggle quote (7 lines)

> │ ├── [Dec 31 1969] DejaVuSerif.ttf> │ └── [Jun 17 2020] .uuid> └── [Jun 17 2020] .uuid> ------>> What's up with those '.uuid' files?

Not 100% sure, but my theory is that it’s a cache created by Fontconfigand its friends. That can happen when running a Guix application asroot.
It’s in fact a relatively frequent problem and the reason why Guix andbefore that NixOS made the store read-only.
HTH!
Ludo’.

Leo Famulari wrote on 31 Jan 19:13 +0100

Recipients:(name . Ludovic Courtès)(address . ludo@gnu.org)(address . 45992@debbugs.gnu.org)

Message-ID:YBbzTYlYp4GLh/Yd@jasmine.lan

On Sun, Jan 31, 2021 at 05:40:50PM +0100, Ludovic Courtès wrote:

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> We now provide a ‘gnu-store.mount’ systemd service that makes /gnu/store> read-only, as on Guix System. I suppose it wasn’t enabled on this> machine, right?

Thanks for pointing that out. This installation of Guix is very old. I'mgoing to make it use that gnu-store.mount service now!

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> Not 100% sure, but my theory is that it’s a cache created by Fontconfig> and its friends. That can happen when running a Guix application as> root.

Okay!

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