2 Posts
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1089
October 21st, 2021 13:00
Precision T5600 not booting cycling back to Dell screen
Hi,
We have a Precision T5600 with Intel RST and RAID1 system drive. When powering on it goes through the Dell screen the Intel RST config menu appears, shows both mirrored drives as ok and array as bootable and then it goes to a black screen for about 10 sec only for it to cycle back to the Dell screen - repeat. (Apropos should be booting Windows 10)
I can F12 into Boot menu and boot Ubuntu from USB stick or DVD fine. Boot menu says Legacy boot mode and secure boot turned off. That is as it should as the system drive is MBR.
I'm puzzled that there isn't even an error message or that it just sits and wait.
Any ideas what this behaviour points to? (I would go for restoring MBR next)
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hedana
2 Posts
0
October 23rd, 2021 03:00
Hi,
Thank you, but this was not a service request. We have resolved the issue by restoring the MBR manually using the command utility from the Windows installation medium in repair mode.
bootrec.exe /FixMbr
DELL-Cares
Moderator
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27.3K Posts
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October 22nd, 2021 07:00
We tried reaching you on a private message asking for the Service Tag number to ascertain the warranty but did not receive a response. Please feel free to reply to the private message whenever you are available.
Andy812
2 Intern
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202 Posts
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October 25th, 2021 01:00
>Boot menu says Legacy boot mode and secure boot turned off. That is as it should as the system drive is MBR
Oh no, MBR exactly means the "legacy boot mode"...Do not mistaken it with SATA legacy mode, i.e. non-AHCI DMA SATA controller mode.
MBR-partitioned disks may have UEFI loader (non-legacy). GPT-partitioned disks can not have an MBR boot sector, therefore the legacy mode is pointless with GPT.
Seems, you had both boot options functional on your disk formatted in MBR, but at some point the UEFI loader itself, or the path to the loader in BIOS were damaged.