Q4OS Forum

FlexQ4

Member

Registered: 2017-02-19

Posts: 258

Reeinstall of Win7 in Dual-boot: possible to replant Grub for Q4?

I have to re-install Windows7 on a MBR partitioned disk, on which Q4OS risides too (on a third, Ext4-partition).
So Windows will take control of the MBR/PBR again and remove Grub from it.
Is it possible afterwards to boot with the Q4-Installation-stick, run os-prober, sudo update-grub to re-install GRUB - for the existing Q4-installation?
The installation media should have everything integrated for such an oparation!

FlexQ4

Member

Registered: 2017-02-19

Posts: 258

Re: Reeinstall of Win7 in Dual-boot: possible to replant Grub for Q4?

Could it eventually achieved with q4rescue: https://sourceforge.net/projects/q4rescue/ ?

seb3773

Member

From: France

Registered: 2023-11-01

Posts: 228

Re: Reeinstall of Win7 in Dual-boot: possible to replant Grub for Q4?

Could it eventually achieved with q4rescue: https://sourceforge.net/projects/q4rescue/ ?

Absolutely, ideally use the "Boot Repair" tool provided for this—it should be the safest and simplest option.

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Debian & Q4OS (TDE!!), low-level C, ASM (z80/68k/x86/ARM64), embedded systems, CPU architectures (RISC-V, binary formats, assembly), retro-computing, metal music, guitar and sci-fi.

FlexQ4

Member

Registered: 2017-02-19

Posts: 258

Re: Reeinstall of Win7 in Dual-boot: possible to replant Grub for Q4?

I'd like to try your q4rescue very much, but i can't prepare a bootable stick:
In Q4OS:

> ./q4rescue_usbcreator_linux64
./q4rescue_usbcreator_linux64: /lib/x86_64-linux-gnu/libc.so.6: 
version `GLIBC_2.34' not found (required by ./q4rescue_usbcreator_linux64)

In Windows, with Universal-USB-Installer (with which i made a functional Q4OS-5.8 bootstick some days ago), the stick is written, but at the end there comes a message "Configuration file missing".
And booting with it isn't possible - see attachment!

Kind regards!

Edit: Tried some other options in Universal-USB-Installer (rather than ever-successful "Debian-Live") - all faild to create a bootable stick.

Last edited by FlexQ4 (2026-02-18 17:12)

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