Questions tagged [mbr]
The mbr tag has no summary.
207 questions
3 votes
2 answers
228 views
What should I backup before using parted or fdisk to resize a partition?
Let's say I have disk sda with format MBR and I have N partitions and I want to resize partition K (allocate more space on partition K) I will use a USB device and use a Linux installation medium so ...
- 43
0 votes
0 answers
53 views
Need help for a manual calculation of MBR after /bin/dd of Virtualbox flat hard disk image to actual HDD on 32-bit P4 laptop (2003)
I have an old laptop which I am trying to install OpenStep 4.2 with Patch 3 pack (Which supports over 8GB and has a VESA driver) on to a 2003 laptop which is a 32-bit pentium 4 with 512MB RAM and a ...
0 votes
1 answer
498 views
Resize Disk Image with Protective MBR and GPT table
I've got a disk image that I need shortened slightly (long story - but it deals with variances in flash drive sizes). The partitions are already short enough, but the drive size is not. Basically, I ...
- 101
1 vote
0 answers
169 views
Unable to load into installed linuxmint os
I currently have Windows and Arch Linux installed on a drive with a GPT partition and grub. I am now trying to install Linux Mint alongside these two. I am installing Mint on a second HDD (same PC) ...
- 31
0 votes
1 answer
938 views
Convert MBR/BIOS to GPT/UEFI (infodump)
I wanted to upgrade my 1.5TB HDD to a 4TB SSD, none of the internet resources I found correctly matched my situation from beginning to end, and I ended up spending about 20 hours getting it to work, ...
- 249
0 votes
3 answers
341 views
using dd for clean MBR code doesn't work on pfSense
Trying to clean the mbr code part on a disk using the pfsense 2.7.0 live disk (pfsense is based on freebsd) under shell command. being /dev/da0 my drive following the suggested code for clean just the ...
- 3,104
2 votes
3 answers
4k views
Fix Linux grub with boot-repair with an old BIOS PC and a GPT drive?
I have a GPT formatted SSD Drive that I have moved from a rather new laptop to an older one that has an old BIOS. The Linux systems installed on it work fine (Kubuntu 22.04 and Mint 21), although I ...
- 1,799
3 votes
3 answers
985 views
How does Linux know there is a MBR partition table?
You might think this question is trivial because an msdos partition table MBR ends with 55 AA (hex). But it's not because disks formatted as FAT32 (with no partition table) end with 55 AA too. I ...
- 1,022
1 vote
0 answers
482 views
grub still tries to mount cryptodisk by its old UUID after changing it
I have a Linux system with the following disk setup (MBR-formatted, BIOS-booted): sda 32G disk └─sda1 ...
- 469
3 votes
1 answer
544 views
Where does grub-install take the arguments for grub-mkimage from?
When I run grub-install /dev/vda -v I see this line in the output: grub-mkimage --directory '/usr/lib/grub/i386-pc' --prefix '(,msdos1)/boot/grub' --output '/boot/grub/i386-pc/core.img' --dtb '' --...
- 469
0 votes
1 answer
2k views
Force MBR install with Debian installer, skipping the EFI detection
I want to install Debian (actually Open Media Server, a derivative) by using a Mac laptop (EFI) on a disk (connected via USB), to then transfer it to an headless machine already installed and ...
- 101
8 votes
1 answer
1k views
Is it important to delete GPT/MBR labels before reformatting/repartitioning?
I've seen some disk formatting/partitioning discussions that mention destroying existing GPT/MBR data structures as a first step: sgdisk --zap-all /dev/nvme0n1 I wasn't previously aware of this, and ...
- 1,938
1 vote
0 answers
426 views
kernel panic not syncing unknownblock (0,0) for Mint & Kali after installing Linux Mint
This is what my disk looks like right now : I have installed Windows 11 on the PC. I then decided to install Kali Linux to learn cybersecurity (please don't tell me "if you're asking this ...
- 111
0 votes
2 answers
232 views
Does erasing the MBR will touch the partition table?
If I run this dd command to blank the first bytes of a MBR, will it have an effect on the current partition table of this disk (or just on grub)? Will the partitions still be recognized? dd if=/dev/...
- 359
0 votes
1 answer
313 views
Does BIOS MBR limit linux distros installments?
Long ago I've installed Windows 7 in legacy (BIOS) mode with MBR (why? who knows) and made 4 primary partitions, one for Windows and the others for files. Later I've changed one primary into logical ...
- 3