Skip to content

Commit b249e26

Browse files
fezcodefezcode
committed
Updates
1 parent a5a2fc3 commit b249e26

File tree

4 files changed

+135
-23
lines changed

4 files changed

+135
-23
lines changed

‎posts/fixing-grub.txt‎

Lines changed: 84 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,84 @@
1+
# Fixing GRUB Syntax Errors Caused by Grub Customizer
2+
3+
You've updated your system, and suddenly you're greeted with a cryptic GRUB error message:
4+
5+
```
6+
error: syntax error.
7+
error: Incorrect command.
8+
error: syntax error.
9+
Syntax error at line 221
10+
Syntax errors are detected in generated GRUB config file.
11+
Ensure that there are no errors in /etc/default/grub
12+
and /etc/grub.d/* files or please file a bug report with
13+
/boot/grub/grub.cfg.new file attached.
14+
```
15+
16+
This error can be frustrating, especially when you haven't manually edited any GRUB configuration files. This blog post will guide you through identifying the source of this problem and how to fix it.
17+
18+
## The Source of the Problem: Grub Customizer
19+
20+
In many cases, the culprit behind these GRUB syntax errors is a tool called **Grub Customizer**. While it offers a graphical interface to manage your GRUB bootloader, it can sometimes cause problems, especially after system updates.
21+
22+
Grub Customizer works by replacing the standard GRUB configuration scripts in `/etc/grub.d/` with its own "proxy" scripts. These proxy scripts then call a binary named `grubcfg_proxy` to apply the customizations. This can lead to a fragile configuration that breaks when other parts of the system are updated.
23+
24+
## How to Detect the Source of the Problem
25+
26+
You can confirm if Grub Customizer is the cause of your issues by inspecting the `/etc/grub.d/` directory. Open a terminal and run:
27+
28+
```bash
29+
ls -l /etc/grub.d/
30+
```
31+
32+
If you see files with `_proxy` in their names (e.g., `10_linux_proxy`, `30_os-prober_proxy`) and directories like `backup`, `bin`, and `proxifiedScripts`, it's a strong indication that Grub Customizer has modified your GRUB configuration.
33+
34+
You might also find a script like this in `/etc/grub.d/10_linux_proxy`:
35+
36+
```sh
37+
#!/bin/sh
38+
#THIS IS A GRUB PROXY SCRIPT
39+
'/etc/grub.d/proxifiedScripts/linux' | /etc/grub.d/bin/grubcfg_proxy "-'SUBMENU' as 'Advanced options for Ubuntu'{-'Advanced options for Ubuntu'/*, -'Advanced options for Ubuntu'/'Ubuntu, with Linux 6.17.0-6-generic'~09ff0eeb66e30428b876bfc87b466e5d~, -'Advanced options for Ubuntu'/'Ubuntu, with Linux 6.17.0-6-generic (recovery mode)'~235ee17b753aaaca5703a4e27ecda63b~}
40+
+*
41+
+#text
42+
-'Ubuntu'~5eca380a341c422accf5af1ff1704fc7~
43+
"%
44+
```
45+
46+
This non-standard script is a clear sign of Grub Customizer's intervention.
47+
48+
## The Approach and Solution
49+
50+
The most reliable way to fix this issue is to completely remove Grub Customizer and restore your GRUB configuration to its default state. This will remove any customizations you've made with the tool, but it will give you a stable and working bootloader.
51+
52+
Here are the steps to follow:
53+
54+
### 1. Purge Grub Customizer
55+
56+
First, you need to completely remove the `grub-customizer` package and its configuration files. Run the following command:
57+
58+
```bash
59+
sudo apt-get purge grub-customizer
60+
```
61+
62+
### 2. Reinstall GRUB
63+
64+
Next, reinstall the GRUB package to ensure all the original scripts are restored in `/etc/grub.d/`.
65+
66+
```bash
67+
sudo apt-get install --reinstall grub-pc
68+
```
69+
70+
**Note:** This command is for systems using a traditional BIOS or CSM. If you are using UEFI, you might need to install `grub-efi-amd64` or a similar package depending on your architecture.
71+
72+
### 3. Update GRUB
73+
74+
Finally, regenerate the `grub.cfg` file with the restored, standard scripts. This command will also run `os-prober` to detect other operating systems like Windows and add them to the boot menu.
75+
76+
```bash
77+
sudo update-grub
78+
```
79+
80+
After running these commands, your GRUB configuration should be back to a clean, working state, and the syntax errors should be gone.
81+
82+
## Conclusion
83+
84+
Grub Customizer can be a convenient tool, but it can also lead to unexpected issues. If you encounter GRUB errors after using it, the best solution is often to remove it and revert to the standard GRUB configuration. By following the steps in this guide, you can quickly resolve these errors and get your system booting correctly again.

‎posts/posts.json‎

Lines changed: 12 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,16 @@
11
[
2+
{
3+
"slug": "fixing-grub",
4+
"title": "Fixing GRUB Syntax Errors Caused by Grub Customizer",
5+
"date": "2025-11-22",
6+
"updated": "2025-11-22",
7+
"description": "A quick fix for problems caused by Grub Customizer",
8+
"tags": ["linux", "grub", "grub-customizer"],
9+
"category": "dev",
10+
"filename": "fixing-grub.txt",
11+
"authors": ["fezcode"],
12+
"image": "/images/defaults/visuals-2TS23o0-pUc-unsplash.jpg"
13+
},
214
{
315
"slug": "floating-point-precision-in-javascript",
416
"title": "4 Equals For Complete Equalness",

‎rss.xml‎

Lines changed: 12 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -9,14 +9,24 @@
99
<link>https://fezcode.com</link>
1010
</image>
1111
<generator>RSS for Node</generator>
12-
<lastBuildDate>Fri, 21 Nov 2025 12:52:16 GMT</lastBuildDate>
12+
<lastBuildDate>Sat, 22 Nov 2025 10:22:37 GMT</lastBuildDate>
1313
<atom:link href="https://fezcode.com/rss.xml" rel="self" type="application/rss+xml"/>
14-
<pubDate>Fri, 21 Nov 2025 12:52:14 GMT</pubDate>
14+
<pubDate>Sat, 22 Nov 2025 10:22:37 GMT</pubDate>
1515
<copyright><![CDATA[2025 Ahmed Samil Bulbul]]></copyright>
1616
<language><![CDATA[en]]></language>
1717
<managingEditor><![CDATA[samil.bulbul@gmail.com (Ahmed Samil Bulbul)]]></managingEditor>
1818
<webMaster><![CDATA[samil.bulbul@gmail.com (Ahmed Samil Bulbul)]]></webMaster>
1919
<ttl>60</ttl>
20+
<item>
21+
<title><![CDATA[Fixing GRUB Syntax Errors Caused by Grub Customizer]]></title>
22+
<description><![CDATA[[object Object]]]></description>
23+
<link>https://fezcode.com/#/blog/fixing-grub</link>
24+
<guid isPermaLink="false">https://fezcode.com/#/blog/fixing-grub</guid>
25+
<dc:creator><![CDATA[Ahmed Samil Bulbul]]></dc:creator>
26+
<pubDate>Sat, 22 Nov 2025 00:00:00 GMT</pubDate>
27+
<content:encoded><![CDATA[<h1>Fixing GRUB Syntax Errors Caused by Grub Customizer</h1>
28+
<p><a href="https://fezcode.com/#/blog/fixing-grub">Read more...</a></p>]]></content:encoded>
29+
</item>
2030
<item>
2131
<title><![CDATA[4 Equals For Complete Equalness]]></title>
2232
<description><![CDATA[[object Object]]]></description>

‎sitemap.xml‎

Lines changed: 27 additions & 21 deletions
Original file line numberDiff line numberDiff line change
@@ -2,58 +2,64 @@
22
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
33
<url>
44
<loc>https://fezcode.com/</loc>
5-
<lastmod>2025-11-21T12:52:16.775Z</lastmod>
5+
<lastmod>2025-11-22T10:22:37.786Z</lastmod>
66
<changefreq>monthly</changefreq>
77
<priority>1.0</priority>
88
</url>
99
<url>
1010
<loc>https://fezcode.com/about</loc>
11-
<lastmod>2025-11-21T12:52:16.776Z</lastmod>
11+
<lastmod>2025-11-22T10:22:37.787Z</lastmod>
1212
<changefreq>monthly</changefreq>
1313
<priority>0.8</priority>
1414
</url>
1515
<url>
1616
<loc>https://fezcode.com/blog</loc>
17-
<lastmod>2025-11-21T12:52:16.776Z</lastmod>
17+
<lastmod>2025-11-22T10:22:37.787Z</lastmod>
1818
<changefreq>monthly</changefreq>
1919
<priority>0.8</priority>
2020
</url>
2121
<url>
2222
<loc>https://fezcode.com/projects</loc>
23-
<lastmod>2025-11-21T12:52:16.776Z</lastmod>
23+
<lastmod>2025-11-22T10:22:37.787Z</lastmod>
2424
<changefreq>monthly</changefreq>
2525
<priority>0.8</priority>
2626
</url>
2727
<url>
2828
<loc>https://fezcode.com/logs</loc>
29-
<lastmod>2025-11-21T12:52:16.776Z</lastmod>
29+
<lastmod>2025-11-22T10:22:37.787Z</lastmod>
3030
<changefreq>monthly</changefreq>
3131
<priority>0.8</priority>
3232
</url>
3333
<url>
3434
<loc>https://fezcode.com/stories</loc>
35-
<lastmod>2025-11-21T12:52:16.776Z</lastmod>
35+
<lastmod>2025-11-22T10:22:37.787Z</lastmod>
3636
<changefreq>monthly</changefreq>
3737
<priority>0.8</priority>
3838
</url>
3939
<url>
4040
<loc>https://fezcode.com/settings</loc>
41-
<lastmod>2025-11-21T12:52:16.776Z</lastmod>
41+
<lastmod>2025-11-22T10:22:37.787Z</lastmod>
4242
<changefreq>monthly</changefreq>
4343
<priority>0.8</priority>
4444
</url>
4545
<url>
4646
<loc>https://fezcode.com/apps</loc>
47-
<lastmod>2025-11-21T12:52:16.776Z</lastmod>
47+
<lastmod>2025-11-22T10:22:37.787Z</lastmod>
4848
<changefreq>monthly</changefreq>
4949
<priority>0.8</priority>
5050
</url>
5151
<url>
5252
<loc>https://fezcode.com/stories/lore</loc>
53-
<lastmod>2025-11-21T12:52:16.776Z</lastmod>
53+
<lastmod>2025-11-22T10:22:37.787Z</lastmod>
5454
<changefreq>monthly</changefreq>
5555
<priority>0.8</priority>
5656
</url>
57+
<url>
58+
<loc>https://fezcode.com/#/blog/fixing-grub</loc>
59+
<lastmod>2025-11-22T00:00:00.000Z</lastmod>
60+
<changefreq>weekly</changefreq>
61+
<priority>0.7</priority>
62+
</url>
5763
<url>
5864
<loc>https://fezcode.com/#/blog/floating-point-precision-in-javascript</loc>
5965
<lastmod>2025-11-21T00:00:00.000Z</lastmod>
@@ -536,73 +542,73 @@
536542
</url>
537543
<url>
538544
<loc>https://fezcode.com/#/stories/books/1</loc>
539-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
545+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
540546
<changefreq>monthly</changefreq>
541547
<priority>0.6</priority>
542548
</url>
543549
<url>
544550
<loc>https://fezcode.com/#/stories/books/1/pages/1</loc>
545-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
551+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
546552
<changefreq>weekly</changefreq>
547553
<priority>0.5</priority>
548554
</url>
549555
<url>
550556
<loc>https://fezcode.com/#/stories/books/1/pages/2</loc>
551-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
557+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
552558
<changefreq>weekly</changefreq>
553559
<priority>0.5</priority>
554560
</url>
555561
<url>
556562
<loc>https://fezcode.com/#/stories/books/2</loc>
557-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
563+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
558564
<changefreq>monthly</changefreq>
559565
<priority>0.6</priority>
560566
</url>
561567
<url>
562568
<loc>https://fezcode.com/#/stories/books/2/pages/1</loc>
563-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
569+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
564570
<changefreq>weekly</changefreq>
565571
<priority>0.5</priority>
566572
</url>
567573
<url>
568574
<loc>https://fezcode.com/#/stories/books/2/pages/2</loc>
569-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
575+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
570576
<changefreq>weekly</changefreq>
571577
<priority>0.5</priority>
572578
</url>
573579
<url>
574580
<loc>https://fezcode.com/#/stories/books/3</loc>
575-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
581+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
576582
<changefreq>monthly</changefreq>
577583
<priority>0.6</priority>
578584
</url>
579585
<url>
580586
<loc>https://fezcode.com/#/stories/books/3/pages/1</loc>
581-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
587+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
582588
<changefreq>weekly</changefreq>
583589
<priority>0.5</priority>
584590
</url>
585591
<url>
586592
<loc>https://fezcode.com/#/stories/books/3/pages/2</loc>
587-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
593+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
588594
<changefreq>weekly</changefreq>
589595
<priority>0.5</priority>
590596
</url>
591597
<url>
592598
<loc>https://fezcode.com/#/stories/books/4</loc>
593-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
599+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
594600
<changefreq>monthly</changefreq>
595601
<priority>0.6</priority>
596602
</url>
597603
<url>
598604
<loc>https://fezcode.com/#/stories/books/4/pages/1</loc>
599-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
605+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
600606
<changefreq>weekly</changefreq>
601607
<priority>0.5</priority>
602608
</url>
603609
<url>
604610
<loc>https://fezcode.com/#/stories/books/4/pages/2</loc>
605-
<lastmod>2025-11-21T12:52:16.879Z</lastmod>
611+
<lastmod>2025-11-22T10:22:37.790Z</lastmod>
606612
<changefreq>weekly</changefreq>
607613
<priority>0.5</priority>
608614
</url>

0 commit comments

Comments
 (0)