sebus Posted June 5, 2021 Share Posted June 5, 2021 (edited) In HP 840 G3 I have SATA SSD & M2 SSD Sata is boot drive with OC installed and Catalina 10.15.7 M2 has Big Sur 11.2.3 installed Decided to give 11.4 update a go. Downloaded 5.7Gb, run the initial process for 20 minutes, rebooted OC gave additional option Mackintosh HD, it started booting from it, failed miserably, so rebooted I can get back to 11.2.3 (as nothing update-wise actually happened), but now I have these two additional boot options in red How do I remove? Also there must be somewhere where the 5.7Gb download got extracted. Anybody knows how the update is being stored before being applied in BS? Thanks sebus edit: The entries boot: 11.2.3 entry boots: \303311EA-363C-49FC-AB94-F4F9109B06E8\System\Library\CoreServices\boot.efi Mackintosh HD boots: \303311EA-363C-49FC-AB94-F4F9109B06E8\com.apple.installer\boot.efi UUID is that of Big Sur - Data disk Edited June 6, 2021 by sebus Link to comment Share on other sites More sharing options...
sebus Posted June 5, 2021 Author Share Posted June 5, 2021 (edited) That is correct, the volume is a temp volume for update purpose only. "Rename" only of the folder does not remove it from OC menu I cannot update because installer crashes (have another post opened), probably because OC needs update to 0.6.9 first for 11.4 But the com.apple.installer folder is only 300Mb or so in size. Where is the rest of the 5.7Gb download? And where is the info about what is bootable (blessed) stored? Because it is not in nvram sebus Edited June 5, 2021 by sebus Link to comment Share on other sites More sharing options...
sebus Posted June 6, 2021 Author Share Posted June 6, 2021 (edited) Gave up! Did not yet learn the update process shenanigans Instead used full 11.4 USB installer (with same EFI) and upgrade/update worked perfectly fine Back to two boot options (if Aux are hidden) sebus Edited June 6, 2021 by sebus Link to comment Share on other sites More sharing options...
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