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[Solved] E5420: unable to boot Catalina


tryit
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This is my first build  OS X on Latitude E5420 so really newbie and nope about it, I am able to install Catalina on E5420 on external USB HDD drive, it looks all functioning well as it should ( Audio, keyboard and mouse pad , wifi, and ethernet ).

I use Boot Disk Utility on USB thumb drive and clover legacy boot. 

Now I am wondering how to boot up without  USB thumb drive ?

I mounted  EFI partition on HDD drive and copy USB thumb drive 's EFI folder + boot to EFI partition but has no luck and wont go to boot menu

 

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Please advise  and  Thank you for all your help

 

 

 

 

 

 

 

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Install Clover and select the internal drive as the destination as you did for the USB.

If that doesn't work, you could create a new boot option in the BIOS and point it to /EFI/Boot/bootx64.efi

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try to install clover and fail

1660479949_ScreenShot2022-01-03at10_23_46PM.png.0fbc1d448a72be09852e2c2ee0a2ce03.png

 

added     EFI/Boot/bootx64.efi    BIOS UEFI  wont boot 

 

I  just tried that HDD as external USB to newer Latitude 5400 and being recognized as EFI partition and will go clover booting menu 

so no problem UEFI 5400 ,but problem E5420

 

btw attached my USB thumb boot  drive

 

1951124546_ScreenShot2022-01-03at10_43_35PM.png.18f499dee78c78b18811759bdfb3dec1.png

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If the E5420 is like the E6x20, it won't boot from USB in UEFI BIOS mode; but it will boot from internal disk. Of course, you'd have to install Clover for UEFI mode on the internal disk. Use an older version like r5133 rather than latest r514x.

 

Catalina is not the best version to install on Sandy Bridge/HD3000 as a newbie because such platforms were last officially supported in High Sierra. You'll have to use dosdude1's patcher to be able to obtain graphics acceleration. See here:

https://osxlatitude.com/forums/topic/7914-dell-latitude-e6220-with-i5-2520m-hd3000-and-1366x768-lcd-mavericksyosemiteel-capitansierrahigh-sierramojavecatalina/?do=findComment&comment=109088

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I move it as internal hd . it wont to boot either.

Not sure why The E5420 Bios just recognize EFI / boot if under MBR partition , but not GPT

 

disk 1 is my HDD

disk 2 is  my usb boot 

 

 

1504941036_ScreenShot1400-10-14at14_58_52.png.5f66eb814dffd52563607562ae391d5f.png

 

 

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The problem I had  with  Toshiba HDD MK2556GSY  , I change to WD  HDD  WB5000BPKT and booting no problem .

I still wondering why  use the same EFI boot, same SATA to USB adapter, same laptop ,  but  that Toshiba drive fail to boot it self after finish installation .

May be somebody can explain it . Thanks 

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